Kohler Engine Torque Specs

Cylinder head bolt torque at a glance

HighMediumLow= how many independent sources agree

Kohler powers a huge share of riding mowers, zero-turns, and portable generators through a handful of well-known families — the single-cylinder Command PRO CH395/CH440, the different, older-platform Command CH11-16 and CV11-16 singles, the CH/CV V-Twins that show up as CH640… Read the rest ›

CH680, CV730, CV740 on riding-mower decals, the newer 7000 Series (KT715-KT745), and the older Courage SV470-SV620 line. The torque values below are pulled directly from Kohler's own service manual PDFs (not paraphrased from a parts blog), so head-bolt sequences, flywheel-nut, connecting-rod, and spark-plug numbers match what a Kohler-trained tech would use — and they're split by family because Kohler's own tables show the numbers are NOT interchangeable across CH11-16, CH440, CH730/CV730, KT725, and SV540, even though several look similar at a glance or overlap in horsepower.

Where these numbers come from. 166 published figures, 9 confirmed gaps, every source named. How we checked ›

Every family below has its own official Kohler service manual, hosted directly on resources.kohler.com: form 17 690 01 (CH245-CH440) for the CH395/CH440 singles, form TP-2402-A (CH11-CH16) for the different, older-platform Command CH11-16 horizontal-crankshaft singles, form TP-2339-D (CV11-CV16/CV460-495) for the vertical-crankshaft CV11-16 companion, form 24 690 06 (CH18-CH25/CH620-CH750) for the Command CH V-Twin, form 24 690 07 (CV17-CV25/CV620-CV750) for the Command CV V-Twin, form 32 690 03 (KT610-KT745) for the 7000 Series, and form 20 690 01 (SV470-SV620) for Courage. CH11-16 and CV11-16 are a genuinely different, older platform from CH395/CH440 and from the CH620-750/CV620-750 V-Twins — CH11-14 displaces 398 cc and CH15/16 displaces 426 cc, close to CH440's 429 cc, but none of the fastener values transfer between the three families. Several real discrepancies surfaced during sourcing rather than being silently resolved: (1) the CH V-Twin manual lists the rocker arm silver screw at 105 in-lb while the otherwise-identical CV V-Twin manual lists the same M6x1.0x45 screw at 120 in-lb; (2) an older revision of the CH395/CH440 manual (Rev. D, 2011) lists the oil drain plug at 23 N·m versus the current Rev. L's 18 N·m; (3) CH11-16's own manual is internally inconsistent about which hole condition (new vs. used) gets the higher ignition-module fastener torque — see that row; (4) CH11-16's charging stator mounting screw is 6.2 N·m (55 in-lb) in the Section 1 spec table but 4.0 N·m in the Section 11 reassembly procedure, which also mislabels that figure "ft. lb." instead of "in. lb." — see that row. All are kept and flagged rather than picking one. Also worth knowing: the CH11-16/CV11-16 singles are the one Kohler family here where spark-plug torque is NOT identical across CH and CV — CH11-16 specifies 38.0-43.4 N·m (28-32 ft-lb) versus CV11-16's 24.4-29.8 N·m (18-22 ft-lb), a ~45% gap for the same RC12YC plug — while every larger Kohler family (CH395/CH440, the V-Twins, 7000 Series, Courage SV) uses the identical 27 N·m (20 ft-lb) spark-plug torque. The Courage SV head-bolt final torque (41.0 N·m / 360 in-lb) is also noticeably lower than the CH/CV V-Twin and 7000 Series bolt-variant head bolt (41.8 N·m / 370 in-lb) — don't cross-apply Command's head-bolt numbers to a Courage SV engine, whose manual also makes the head screws and gasket one-time-use. Looking for the older K91-K341 K-Series or M8-M20 Magnum industrial engines instead? See /small-engines/kohler-k-series-magnum-torque-specs/.

Kohler Command PRO CH395 Manufacturer-published

All values from Kohler's official CH245-CH440 Service Manual, form 17 690 01 Rev. L, hosted directly at resources.kohler.com. More about this engine ›

Cross-checked against an older Rev. D copy (2011, mirrored at rokon.com) — one discrepancy found on the oil drain plug (see that row).

Fastener Torque Where it comes from
cylinder head bolt (2-stage) 26.6 ft-lbHigh Final stage 36 N·m (319 in-lb); initial stage 18 N·m (159 in-lb). Torque in 2 increments per the sequence diagram.
connecting rod cap fastener 14.8 ft-lbHigh 20 N·m (177 in-lb). "Torque in increments" per the manual — tighten gradually to this final value.
flywheel retaining nut 83.3 ft-lbHigh 113 N·m (1000 in-lb). Use a flywheel holding tool, never an impact gun.
spark plug14mm 20 ft-lbHigh 27 N·m. Thread 14mm, reach 19.1mm (3/4in), hex 15.9mm (5/8in), gap 0.76mm (0.030in). Plug: Champion RC12YC or equivalent.
crankcase oil drain plug 13 ft-lbHigh⚠ sources disagree
18 N·m per the current Rev. L manual. Why › CONFLICT: an older 2011 Rev. D of the same document (mirrored at rokon.com/wp-content/uploads/2020/10/7hpKohlerServiceManual.pdf) lists 23 N·m (204 in-lb / ~17 ft-lb) for CH395/CH440 specifically. Rev. L is the current manufacturer-hosted revision and is treated as authoritative here.
crankcase closure plate screw 17.7 ft-lbHigh
24 N·m (212 in-lb). CH395/CH440 use a 7-position torque sequence (one more bolt than the smaller CH245-CH270's 6-position pattern) — follow… Why › the numbered diagram in the manual.
rocker arm pivot stud 10 ft-lbHigh 13.6 N·m (120 in-lb).
rocker arm pivot jam (lock) nut 7.4 ft-lbHigh 10 N·m (89 in-lb).
valve cover fastener 7.4 ft-lbHigh 10 N·m (89 in-lb).
blower housing / sheet metal screwM6 7.4 ft-lbHigh 10 N·m (89 in-lb).
carburetor mounting stud 7.4 ft-lbHigh 10 N·m (89 in-lb). Primary nut on the stud torques to 8 N·m (71 in-lb / 5.9 ft-lb).
electric starter mounting screw 17.7 ft-lbHigh 24 N·m (212 in-lb).
governor lever clamp-bolt nut 8.8 ft-lbHigh 12 N·m (106 in-lb). Procedure: push governor lever in direction indicated, hold, turn governor shaft counterclockwise until it stops, then tighten this nut.
2 specs not published — muffler exhaust screw, oil filter What we found ›
  • muffler exhaust screwGAP: the manual's Muffler Exhaust Screw row is split into an M8 column (24 N·m/212 in-lb) and an M10 column (35 N·m/310 in-lb), but the manual's table doesn't unambiguously assign the M8 vs M10 column to the CH395 specifically (M10/35 N·m is confirmed for CH440 — see that engine's row). No CH395-specific number is asserted without a clearer copy of the source table.
  • oil filterGAP: no oil filter torque spec located for CH395 in Kohler's manual for this engine (only "refer to instructions on oil filter" language elsewhere in Kohler's docs for this era).

Kohler Command PRO CH440 Manufacturer-published

Same source as CH395 (form 17 690 01 Rev. L) — CH440 shares most fastener specs with CH395 but steps up on cylinder head bolt torque and uses a confirmed M10 muffler screw.

Fastener Torque Where it comes from
cylinder head bolt (2-stage) 42.4 ft-lbHigh Final stage 57.5 N·m (509 in-lb); initial stage 25 N·m (221 in-lb). Manual note: apply clean engine oil under the head of each screw before installing.
connecting rod cap fastener 14.8 ft-lbHigh 20 N·m (177 in-lb), same as CH395.
flywheel retaining nut 83.3 ft-lbHigh 113 N·m (1000 in-lb), same as CH395.
spark plug14mm 20 ft-lbHigh 27 N·m, same thread/gap/reach as CH395. Plug: Champion RC12YC or equivalent.
crankcase oil drain plug 13 ft-lbHigh⚠ sources disagree 18 N·m per current Rev. L. CONFLICT: older Rev. D (2011, rokon.com mirror) lists 23 N·m (204 in-lb) for CH395/CH440. Rev. L treated as authoritative.
crankcase closure plate screw 17.7 ft-lbHigh 24 N·m (212 in-lb), 7-position torque sequence.
rocker arm pivot stud 10 ft-lbHigh 13.6 N·m (120 in-lb).
rocker arm pivot jam (lock) nut 7.4 ft-lbHigh 10 N·m (89 in-lb).
valve cover fastener 7.4 ft-lbHigh 10 N·m (89 in-lb).
blower housing / sheet metal screwM6 7.4 ft-lbHigh 10 N·m (89 in-lb).
muffler exhaust screwM10 25.8 ft-lbHigh 35 N·m (310 in-lb), M10.
electric starter mounting screw 17.7 ft-lbHigh 24 N·m (212 in-lb). CH440 Type II starter assembly-specific 5mm screw torques lower, to 5.8 N·m (51 in-lb / 4.3 ft-lb).
governor lever clamp-bolt nut 8.8 ft-lbHigh 12 N·m (106 in-lb), same procedure as CH395.
1 spec not published — oil filter What we found ›
  • oil filterGAP: no oil filter torque spec located for CH440 in Kohler's manual for this engine.

Kohler Command CH620-CH750 V-Twin (CH640, CH680, CH730, CH740) Manufacturer-published

series CH18, CH20, CH22, CH23, CH25 spec codes; CH620, CH621, CH640, CH641, CH670, CH680, CH730, CH740, CH750
From Kohler's official "CH18-CH25, CH620-CH730, CH740, CH750 Service Manual," form 24 690 06 Rev. P, hosted at resources.kohler.com. More about this engine ›

Every value below was checked directly against the manual's own torque table (4 match Kohler's previously-published figures exactly, 1 — the rocker arm silver screw — turned out to be CV-specific rather than universal; see that row).

Fastener Torque Where it comes from
cylinder head bolt (bolt variant, 2-stage) 30.8 ft-lbHigh Final 41.8 N·m (370 in-lb); initial 22.6 N·m (200 in-lb). Matches Kohler's own published figure exactly.
cylinder head nut (nut variant, 2-stage) 26.3 ft-lbHigh
Final 35.5 N·m (315 in-lb); initial 16.9 N·m (150 in-lb). Why › Matches Kohler's own published figure exactly. New hardware every time: the manual says to lightly oil the exposed (upper) stud threads, then "install a new flat washer and nut onto each mounting stud." Kohler also notes that heads are machined differently for studs than for screws, so the fastening method cannot be altered unless the heads are replaced, and components must not be intermixed — use the variant your head was built for.
connecting rod cap, 8mm straight shank8mm straight shank 16.7 ft-lbHigh 22.7 N·m (200 in-lb). Matches Kohler's own published figure.
connecting rod cap, 8mm step-down shank8mm step-down shank 10.8 ft-lbHigh 14.7 N·m (130 in-lb). Matches Kohler's own published figure.
connecting rod cap, 6mm straight shank6mm straight shank 8.3 ft-lbHigh 11.3 N·m (100 in-lb). Matches Kohler's own published figure.
flywheel retaining screw 49 ft-lbHigh 66.4 N·m. Matches Kohler's own published figure exactly.
spark plug 20 ft-lbHigh 27 N·m. Matches Kohler's own published figure exactly.
crankcase oil drain plug 10 ft-lbHigh 13.6 N·m.
closure plate fastener 18 ft-lbHigh 24.4 N·m (216 in-lb).
rocker arm screw, black (M6x1.0x34)M6x1.0x34 13.3 ft-lbHigh 18.1 N·m (160 in-lb). Matches Kohler's own published figure exactly.
rocker arm screw, silver (M6x1.0x45)M6x1.0x45 8.8 ft-lbHigh⚠ sources disagree
11.9 N·m (105 in-lb) per the CH manual specifically. Why › CONFLICT: the companion CV V-Twin manual (form 24 690 07) lists the identical M6x1.0x45 screw at 13.6 N·m (120 in-lb) — the commonly-cited 120 in-lb figure is CV-specific, not universal across the CH/CV platform. Use 105 in-lb for CH-family engines, 120 in-lb for CV-family engines.
valve cover fastener (black O-ring, flange screws + spacers) 7.3 ft-lbHigh
9.9 N·m (88 in-lb). Other valve cover variants on this platform: gasket/RTV style 3.4 N·m (30 in-lb / 2.5 ft-lb); black O-ring shoulder… Why › screws (no spacers) 5.6 N·m (50 in-lb / 4.2 ft-lb); yellow/brown O-ring w/ integral spacers 9.0 N·m (80 in-lb / 6.7 ft-lb) — match the variant to your actual cover hardware.
intake manifold mounting fastener (2-stage) 7.3 ft-lbHigh Final 9.9 N·m (88 in-lb); initial 7.4 N·m (66 in-lb).
carburetor mounting screw (M6)M6 55–65 in-lbHigh 6.2-7.3 N·m. Kohler prints this as a band in in-lb; both ends are shown rather than the upper bound alone.
muffler M8 hex nutsM8 18 ft-lbHigh 24.4 N·m (216 in-lb). Lock-nut variant torques higher, to 27.8 N·m (246 in-lb / 20.5 ft-lb).
governor lever nut 5 ft-lbHigh 6.8 N·m (60 in-lb).
oil filter nipple 20 ft-lbHigh 27 N·m. Thread size not stated in the manual.

Kohler Command CV620-CV750 V-Twin (CV640, CV680, CV730, CV740) Manufacturer-published

series CV17, CV18, CV20, CV22, CV23, CV25 spec codes; CV620, CV621, CV640, CV641, CV670, CV680, CV730, CV740, CV750
From Kohler's official "CV17-CV25, CV620-CV730, CV740, CV750 Service Manual," form 24 690 07 Rev. L, hosted at resources.kohler.com — the… More about this engine ›

companion document to the CH manual above, same engine generation. Nearly every value is identical to the CH V-Twin; the one confirmed difference is the rocker arm silver screw (see that row).

Fastener Torque Where it comes from
cylinder head bolt (bolt variant, 2-stage) 30.8 ft-lbHigh Final 41.8 N·m (370 in-lb); initial 22.6 N·m (200 in-lb). Identical to the CH manual.
cylinder head nut (nut variant, 2-stage) 26.3 ft-lbHigh
Final 35.5 N·m (315 in-lb); initial 16.9 N·m (150 in-lb). Why › Identical to the CH manual. New hardware every time: the manual says to lightly oil the exposed (upper) stud threads, then "install a new flat washer and nut onto each mounting stud." Kohler also notes that heads are machined differently for studs than for screws, so the fastening method cannot be altered unless the heads are replaced, and components must not be intermixed — use the variant your head was built for.
connecting rod cap, 8mm straight shank8mm straight shank 16.7 ft-lbHigh 22.7 N·m (200 in-lb). Identical to the CH manual.
connecting rod cap, 8mm step-down shank8mm step-down shank 10.8 ft-lbHigh 14.7 N·m (130 in-lb).
connecting rod cap, 6mm straight shank6mm straight shank 8.3 ft-lbHigh 11.3 N·m (100 in-lb).
flywheel retaining screw 49 ft-lbHigh 66.4 N·m.
spark plug 20 ft-lbHigh 27 N·m.
crankcase oil drain plug 10 ft-lbHigh 13.6 N·m.
oil pan fastener (crankcase closure) 18 ft-lbHigh 24.4 N·m (216 in-lb). Called "Oil Pan Fastener" in the CV manual vs. "Closure Plate Fastener" in the CH manual — same fastener role.
rocker arm screw, black (M6x1.0x34)M6x1.0x34 13.3 ft-lbHigh 18.1 N·m (160 in-lb). Matches CH manual.
rocker arm screw, silver (M6x1.0x45)M6x1.0x45 10 ft-lbHigh⚠ sources disagree
13.6 N·m (120 in-lb) per the CV manual specifically. Why › CONFLICT: the companion CH V-Twin manual (form 24 690 06) lists the identical screw at 11.9 N·m (105 in-lb). Use 120 in-lb for CV-family engines, 105 in-lb for CH-family engines — this 120 in-lb figure is the one most commonly cited for this platform.
valve cover fastener (black O-ring, flange screws + spacers) 7.3 ft-lbHigh 9.9 N·m (88 in-lb). Same variant set as the CH manual.
intake manifold mounting fastener (2-stage) 7.3 ft-lbHigh Final 9.9 N·m (88 in-lb); initial 7.4 N·m (66 in-lb).
carburetor mounting nut (M6)M6 55–65 in-lbHigh 6.2-7.3 N·m, as printed by Kohler. Called "Mounting Nut" in the CV manual vs "Mounting Screw" in the CH manual.
muffler retaining nuts 18 ft-lbHigh
24.4 N·m (216 in-lb). The CV manual gives one undifferentiated value; unlike the CH manual it does not separately list a lock-nut variant… Why › thread size (M8) is also not stated here, unlike the CH manual's explicit M8 callout.
governor lever nut 5 ft-lbHigh 6.8 N·m (60 in-lb).
oil filter nipple 20 ft-lbHigh 27 N·m.

Kohler 7000 Series (KT715-KT745) Manufacturer-published

series KT610, KT620, KT715, KT725, KT730, KT735, KT740, KT745 per the Rev. M manual; a newer Rev. N (techcomm.kohler.com) additionally covers KT600, KT720, KT722, KT724, KT726 with identical shared torque values
From Kohler's official "KT610-KT620, KT715-KT745 Service Manual," form 32 690 03 Rev. M, hosted at resources.kohler.com. More about this engine ›

Cross-checked against Rev. N (techcomm.kohler.com/techcomm/pdf/32_690_03_Rev_N.pdf) with zero numeric disagreement. This platform documents a CARBURETED engine line (Smart-Choke/eChoke) — no EFI throttle-body fastener spec exists in this manual; do not assume an EFI KT7000 variant shares these numbers.

Fastener Torque Where it comes from
cylinder head bolt (2-stage) 30.8 ft-lbHigh Final 41.8 N·m (370 in-lb); initial 22.6 N·m (200 in-lb) — same numeric values as the Command CH/CV V-Twin bolt variant.
rocker arm stud / guide plate stud 8.3 ft-lbHigh 11.3 N·m (100 in-lb).
connecting rod cap fastener, black coating 8.3 ft-lbHigh 11.3 N·m (100 in-lb). Lubricate before torquing.
connecting rod cap fastener, gray metallic coating 10 ft-lbHigh 13.6 N·m (120 in-lb). Manual notes it is NOT necessary to lubricate this coated screw before torquing (unlike the black-coating variant).
flywheel retaining screw 55 ft-lbHigh 74.5 N·m. Higher than the Command V-Twin's 49 ft-lb — do not cross-apply between families.
spark plug 20 ft-lbHigh 27 N·m. Gap 0.76mm (0.030in) — identical torque to every other Kohler family in this dataset.
crankcase oil drain plug 10 ft-lbHigh 13.6 N·m.
oil pan fastener (crankcase closure, 10-screw sequence) 18 ft-lbHigh 24.4 N·m (216 in-lb). On this platform the oil pan functions as the crankcase closure plate — manual's own component labeling: "Crankshaft Bore (in oil pan)."
breather outer cover studM5 4.6 ft-lbHigh 6.2 N·m (55 in-lb) into a new/cored hole; 4.0 N·m (35 in-lb / 2.9 ft-lb) into a used hole.
valve cover fastener, stamped steel (with RTV) 10 ft-lbHigh
13.6 N·m (120 in-lb). Plastic-cover variants torque lower: hex flange 9.0 N·m (80 in-lb / 6.7 ft-lb), pan head 6.2 N·m (55 in-lb / 4.6… Why › ft-lb) — match to your actual cover style.
muffler M8 hex nutsM8 18 ft-lbHigh
24.4 N·m (216 in-lb). Lock-nut variant 27.8 N·m (246 in-lb / 20.5 ft-lb); 5/16-18 capscrew variant 16.9 N·m (150 in-lb / 12.5 ft-lb)… Why › depending on cylinder-head design.
governor lever nut 5 ft-lbHigh 6.8 N·m (60 in-lb). Stated for both round and 7mm hex cross-shaft-end variants.
intake manifold mounting fastener (2-stage) 7.3 ft-lbHigh Final 9.9 N·m (88 in-lb); initial 7.4 N·m (66 in-lb).
carburetor mounting nut 55–65 in-lbHigh 6.2-7.3 N·m, as printed by Kohler.
blower housing / sheet metal M6 fastenerM6 7.9 ft-lbHigh 10.7 N·m (95 in-lb) into a new hole; 7.3 N·m (65 in-lb / 5.4 ft-lb) into a used hole.
2 specs not published — oil filter, EFI throttle body bolts What we found ›
  • oil filterGAP: no oil filter torque located — the manual specifies an oil PUMP screw (9.9 N·m / 88 in-lb) but that is a different fastener from a spin-on filter cartridge, which is not given a numeric torque anywhere in this document.
  • EFI throttle body boltsGAP: this manual documents the carbureted KT7XX line only (Smart-Choke/eChoke carburetor systems). No throttle-body or EFI fastener torque appears anywhere in the text. If an EFI KT7000 SKU exists, it is not covered by this document — do not infer a value from another family.

Kohler Courage SV470-SV620 Manufacturer-published

series SV470, SV471, SV480, SV530, SV540, SV541, SV590, SV591, SV600, SV601, SV610, SV620
From Kohler's official "SV470-SV620 Service Manual," form 20 690 01 Rev. J, hosted live at resources.kohler.com (this discontinued line is… More about this engine ›

still on Kohler's own site — no archived copy was needed). Cross-checked against an older Rev. I mirror (smallenginesuppliers.com) with every value matching verbatim. A commonly-repeated 200/370 in-lb head-bolt figure for the "SV series" generically does not appear in this manual's actual text (180/360 in-lb) and is not used here — it appears to be a Command-family number misattributed to Courage.

Fastener Torque Where it comes from
cylinder head fastener (2-stage) 30.2 ft-lbHigh
Final 41.0 N·m (360 in-lb); initial 20.5 N·m (180 in-lb). Why › Notably LOWER than the Command CH/CV V-Twin and 7000 Series bolt-variant final torque (370 in-lb) — do not cross-apply Command's head-bolt number to a Courage SV engine. Six screws, torqued in both stages using the manual's numbered sequence (top row 3-1-5, bottom row 6-2-4), with the thick washer on the screw closest to the exhaust port. One-time-use hardware: the manual says "Do not reuse cylinder head screws or gasket, always replace with new parts."
rocker arm pivot stud 10 ft-lbHigh 13.5 N·m (120 in-lb).
rocker arm adjustment nut set screw 4.2 ft-lbHigh 5.5 N·m (50 in-lb).
connecting rod cap fastener (2-stage) 8.3 ft-lbHigh Final 11.5 N·m (100 in-lb); initial 5.5 N·m (50 in-lb).
flywheel retaining screw, M10M10 49 ft-lbHigh 66.5 N·m.
flywheel retaining screw, M12M12 65 ft-lbHigh 88.0 N·m.
spark plug 20 ft-lbHigh 27 N·m.
crankcase oil drain plug 10.4 ft-lbHigh 14.0 N·m (125 in-lb).
closure plate fastener 18 ft-lbHigh 24.5 N·m (216 in-lb).
valve cover fastener 7.9 ft-lbHigh 11.0 N·m (95 in-lb) into a new hole; 7.5 N·m (65 in-lb / 5.4 ft-lb) into a used hole.
muffler retaining nuts 18 ft-lbHigh 24.4 N·m (216 in-lb). Bracket screw torques lower, to 7.5 N·m (65 in-lb / 5.4 ft-lb).
blower housing / sheet metal M6 fastenerM6 8.3 ft-lbHigh 11.6 N·m (99 in-lb) into a new hole; 7.7 N·m (68 in-lb / 5.7 ft-lb) into a used hole.
carburetor fuel bowl screw, Walbro 45–55 in-lbHigh 5.1-6.2 N·m, as printed by Kohler. This is the most-stripped fastener on the engine — the low end of the band is the number to aim at, not the high one.
carburetor fuel bowl screw, Nikki 96–113 in-lbHigh 10.8-12.8 N·m, as printed by Kohler. Nikki-equipped carbs torque noticeably higher than Walbro on this platform — check your carb brand before assuming a value.
governor lever nut 60–75 in-lbHigh 7.0-8.5 N·m, as printed by Kohler.
oil filter pad pipe plug (1/8" NPTF)1/8" N.P.T.F. 40–46 in-lbHigh 4.5-5.0 N·m, as printed by Kohler.

Kohler Command CH11-16 (Horizontal Crankshaft) Manufacturer-published

series CH11, CH12.5, CH13, CH14, CH15, CH16
All values from Kohler's official "Service Manual, Command CH11-16, Horizontal Crankshaft," form TP-2402-A (issued 6/90, revised 8/06)… More about this engine ›

hosted at resources.kohler.com. This is a different, older platform from the Command PRO CH395/CH440 singles above or the CH620-CH750 V-Twin below — CH11-14 displaces 398 cc and CH15/16 displaces 426 cc, close to CH440's 429 cc, but none of those families' fastener values transfer here even where displacement or HP ranges overlap. Kohler's general torque-by-thread-size table (M4 1.2 N·m/11 in-lb up to M14 58.3-219.7 N·m/43-162 ft-lb across property classes 4.8-12.9) and its oil-drain-plug-by-thread table (1/8" NPT 4.5 N·m into aluminum only; 1/4", 3/8", 1/2", 3/4" tabled separately for cast iron vs. aluminum) cover any fastener without its own row below and without its own page-cited procedure; the crankcase oil drain plug DOES have an engine-specific figure from the "Change Oil" procedure (see that row) even though it is not in the Section 1 spec table. No distinct carburetor-mounting-screw torque is printed (see that GAP row), but the carburetor adapter and cylinder-head baffle screws do have their own rows below. Head bolts use a 5-position pattern (Fig. 11-35, identical layout to CV11-16's Fig. 11-44): position 1 (left-centre, nearest the high-temp cutout switch/long 90mm bolt) is torqued first, then 2 (top-right), 3 (bottom-left), 4 (top-left), 5 (bottom-right, between the intake/exhaust ports) — Figure 11-35 is captioned "Cylinder Head Fastener Torque Sequence" and its five numbered positions ARE the tightening order. New head bolts are required every time a head is installed. Verified 2026-09-19.

Fastener Torque Where it comes from
cylinder head bolt (2-stage) 36 ft-lbHigh
Final stage 48.9 N·m (36 ft-lb); initial stage 24 N·m (18 ft-lb). Why › "Following the sequence in Figure 11-35, torque the bolts to 24 N·m (18 ft. lb.). Then repeat the sequence to a final torque of 48.9 N·m (36 ft. lb.)." Sequence (Fig. 11-35, same 5-position layout as CV11-16's Fig. 11-44): 1 (left-centre, hi-temp cutout switch/long 90mm bolt) first, then 2 (top-right), 3 (bottom-left), 4 (top-left), 5 (bottom-right, between intake/exhaust ports). New head bolts should always be used. No Loctite thread-sealant step is called out for CH11-16 head bolts (contrast CV11-16 below, whose manual explicitly calls for Loctite 59241 on the two head bolts at positions 3 and 4 only).
connecting rod cap, 6mm straight shank6mm straight shank 100 in-lb≈ 8.3 ft-lbHigh 11.3 N·m, as printed by Kohler.
connecting rod cap, 8mm straight shank8mm straight shank 200 in-lb≈ 16.7 ft-lbHigh 22.6 N·m, as printed by Kohler.
connecting rod cap, 8mm step-down shank8mm step-down shank 130 in-lb≈ 10.8 ft-lbHigh 14.7 N·m, as printed by Kohler.
flywheel retaining screw 49 ft-lbHigh 66.4 N·m, as printed by Kohler. "Hold the flywheel with the strap wrench or holding tool and torque the hex flange screw to 66.4 N·m (49 ft. lb.)."
spark plug 28–32 ft-lbHigh
38.0-43.4 N·m, as printed by Kohler. Why › Champion RC12YC or Platinum 3071. Gap 1.02mm (0.040in) on CH11-15, 0.76mm (0.030in) on CH16. Noticeably higher than the CV11-16 spark-plug torque below (24.4-29.8 N·m / 18-22 ft-lb) for what is nominally the same plug — a real, quoted platform difference, not a typo.
closure plate fastener 216 in-lb= 18 ft-lbHigh 24.4 N·m, as printed by Kohler.
oil filter adapter fastener 100 in-lb≈ 8.3 ft-lbHigh
11.3 N·m, as printed by Kohler. The spin-on oil filter itself has no numeric torque — Kohler's instruction is "3/4-1 turn after gasket… Why › contacts," not a torque-wrench figure.
oil filter drain plug (1/8" NPT)1/8" NPT 65–80 in-lbHigh 7.3-9.0 N·m, as printed by Kohler.
oil sentry pressure switch 60 in-lb= 5 ft-lbHigh 6.8 N·m, as printed by Kohler.
oil pump cover fastener 35–55 in-lbHigh 4.0-6.2 N·m. Self-tapping fastener: per Kohler's footnote, the higher value (55 in-lb) is for a new cored hole, the lower (35 in-lb) for a used/threaded hole.
rocker pedestal fastener 88 in-lb≈ 7.3 ft-lbHigh 9.9 N·m, as printed by Kohler.
valve cover fastener 65–95 in-lbHigh 7.3-10.7 N·m. Self-tapping fastener: the higher value is for a new cored hole, the lower for a used/threaded hole.
muffler retaining nuts 216 in-lb= 18 ft-lbHigh 24.4 N·m, as printed by Kohler.
air cleaner base nut 88 in-lb≈ 7.3 ft-lbHigh 9.9 N·m, as printed by Kohler.
carburetor fuel bowl nut 45–55 in-lbHigh 5.1-6.2 N·m, as printed by Kohler.
charging stator mounting screw 55 in-lb≈ 4.6 ft-lbHigh⚠ sources disagree
CONFLICT: the Section 1 spec table (p.1.8) prints "Stator Mounting Screw Torque .... Why › 6.2 N·m (55 in. lb.)." The Section 11 reassembly procedure (p.11.8, "Install Stator and Wiring Harness" step 3) prints a different figure for the same fastener: "Torque the screws to 4.0 N·m (35 ft. lb.)." That procedure line also has its own internal unit error — 4.0 N·m converts to roughly 35 in-lb, not 35 ft-lb, so "ft. lb." there is very likely a misprint for "in. lb." Both passages are genuinely printed in TP-2402-A; the 55 in-lb spec-table figure is shown as the primary value here because it does not carry the apparent unit typo, but the 4.0 N·m procedure figure is quoted in full rather than silently dropped.
fan fastener 88 in-lb≈ 7.3 ft-lbHigh 9.9 N·m, as printed by Kohler.
fuel pump/cover fastener screw 37–80 in-lbHigh 4.2-9.0 N·m. 9.0 N·m (80 in-lb) into a new hole; 4.2-5.1 N·m (37-45 in-lb) into a used hole.
fuel tank fastener 65 in-lb≈ 5.4 ft-lbHigh 7.3 N·m, as printed by Kohler.
ignition module fastener 35–55 in-lbHigh⚠ sources disagree
CONFLICT: Kohler's own spec table prints "4.0 N·m (35 in. lb.) into new holes / 6.2 N·m (55 in. lb.) into used holes" (new hole LOWER than… Why › used hole), but the separate reassembly procedure a few pages later says "First Time Installation On A New Short Block: 6.2 N·m (55 in. lb.). All Reinstallations: 4.0 N·m (35 in. lb.)" (new short block HIGHER). Both figures are genuinely printed in TP-2402-A; which hole condition maps to which value is internally inconsistent in the manual itself, so no direction is asserted here — use 35-55 in-lb and match to whichever of the two Kohler passages applies to your job.
retractable starter center screw 65–75 in-lbHigh 7.4-8.5 N·m, as printed by Kohler.
governor control lever fastener 88 in-lb≈ 7.3 ft-lbHigh 9.9 N·m, as printed by Kohler.
speed control bracket assembly fastener 65–95 in-lbHigh 7.3-10.7 N·m. Self-tapping fastener: the higher value is for a new cored hole, the lower for a used/threaded hole.
electric starter thru bolt 40–84 in-lbHigh
4.5-7.5 N·m (40-84 in-lb), Nippondenso solenoid-shift, exactly as printed by Kohler — a mismatch in the source document itself, since 7.5… Why › N·m converts to about 66 in-lb by standard math, not 84 in-lb. Per brand, all as printed: UTE/Johnson Electric/Eaton (inertia drive) 4.5-5.7 N·m (40-50 in-lb); Nippondenso (solenoid shift) 4.5-7.5 N·m (40-84 in-lb); Delco-Remy (solenoid shift) 5.6-9.0 N·m (49-79 in-lb). Match to your starter brand.
starter drive pinion fastener (some inertia-drive starters) 135 in-lb≈ 11.3 ft-lbHigh 15.3 N·m, as printed by Kohler.
starter brush holder mounting screw, Delco-Remy 22–29 in-lbHigh 2.5-3.3 N·m, as printed by Kohler.
starter solenoid mounting hardware 35–79 in-lbHigh 4.0-9.0 N·m. Nippondenso 6.0-9.0 N·m (53-79 in-lb); Delco-Remy 4.0-6.0 N·m (35-53 in-lb).
starter solenoid positive (+) brush lead nut 53–106 in-lbHigh 6.0-12.0 N·m. Nippondenso 8.0-12.0 N·m (71-106 in-lb); Delco-Remy 6.0-9.0 N·m (53-79 in-lb).
carburetor adapter and heat deflector capscrews 88 in-lb≈ 7.3 ft-lbHigh
9.9 N·m. "Install the heat deflector, carburetor adapter, and gaskets to the cylinder head intake port with the two allen head capscrews. Why › Torque the screws to 9.9 N·m (88 in. lb.)." TP-2402-A p.11.12.
rocker arm screw (separate-pivot heads) 100 in-lb≈ 8.3 ft-lbHigh
11.3 N·m. Separate-pivot/rocker-arm style heads (Fig. 11-37): "torque the screws to 11.3 N·m (100 in. lb.)." A different fastener from the… Why › rocker pedestal row above. TP-2402-A p.11.11-11.12.
breather reed retainer screwM5 35–55 in-lbHigh
3.9-6.2 N·m. "Install the breather reed, reed retainer and secure with the M5 hex flange screw. Why › Torque the screw to 6.2 N·m (55 in. lb) in new hole, or 3.9 N·m (35 in. lb.) in used hole." TP-2402-A p.11.11.
cylinder head baffle hex flange screws 35 in-lb≈ 2.9 ft-lbHigh
3.9 N·m. "Install the cylinder head baffle to the cylinder head using the hex flange screws. Why › Torque the screws to 3.9 N·m (35 in. lb.)." TP-2402-A p.11.13 step 3 (Fig. 11-42). The starter-side and intake-side cylinder baffles (Fig. 11-40, 11-41) and the blower housing itself are NOT given a torque -- p.11.13 step 4 says only "tighten all other mounting hardware securely," no figure.
starter drive stop nut (inertia-drive starters) 150–170 in-lbHigh
17.0-19.2 N·m. "Install the drive pinion, dust cover spacer, anti-drift spring, stop gear spacer, and stop nut. Why › Torque the stop nut to 17.0-19.2 N·m (150-170 in. lb.)." Apply a small amount of Loctite 271 to the stop nut threads first. TP-2402-A §8, p.8.12.
fuel tank / solenoid bracket mounting screws 216 in-lb= 18 ft-lbHigh
24.4 N·m. "Install fuel tank/solenoid bracket (if equipped) onto the mounting studs. Why › Secure with the two hex flange screws through the closure plate... Torque the screws to 24.4 N·m (216 in. lb.)." A different fastener from the fuel tank fastener row above (65 in-lb, the upper fuel-tank mounting bracket screws) — this is the closure-plate-side bracket. The lower fuel-tank mounting flange nuts share the same 216 in-lb figure. TP-2402-A p.11.15.
starter/solenoid terminal nut 53–79 in-lbHigh
6.0-9.0 N·m. "Connect the lead(s) to the starter or solenoid terminals. Why › To avoid damage or breakage, do not overtighten the hex flange nut. Torque the nut to 6-9 N·m (53-79 in. lb.)." TP-2402-A p.11.15.
muffler-to-bracket mounting screws 88 in-lb≈ 7.3 ft-lbHigh
9.9 N·m. "Secure the muffler to the upper and lower mounting brackets with the hex flange screws. Why › Torque the screws to 9.9 N·m (88 in. lb.)." A different fastener from the muffler retaining nuts row above (216 in-lb, the exhaust-port stud nuts). TP-2402-A p.11.18.
carburetor throttle plate retaining screws 8–12 in-lbHigh
0.9-1.4 N·m. Carburetor rebuild fastener, not a carb-to-engine mounting screw: "Install the throttle plate to the throttle shaft... Why › Apply Loctite No. 609 to the threads of the throttle plate retaining screws... Torque the screws to 0.9-1.4 N·m (8-12 in. lb.)." No numeric torque is printed for the choke plate screws in the same procedure. TP-2402-A §5 ("Fuel System and Governor," Throttle Shaft Installation).
crankcase oil drain plug 65–80 in-lbHigh
7.3-9.0 N·m. "Reinstall the drain plug. Why › Make sure it is tightened to 7.3-9.0 N·m (65-80 in. lb.) torque." TP-2402-A p.6.2, "Change Oil" step 4 (same figure repeated at p.6.3 step 7 for the oil-filter change procedure). This is a genuine engine-specific figure from the maintenance procedure, distinct from the generic by-thread-size oil-drain-plug table in Section 1.
2 specs not published — carburetor mounting screw, blower housing / sheet metal fastener What we found ›
  • carburetor mounting screwGAP: the carburetor itself has no printed mounting torque in TP-2402-A — only the fuel bowl nut (see that row) is torqued on the carb body. The heat-deflector/carburetor-adapter capscrews that mount the carb assembly to the cylinder head intake port DO have a published figure — see "carburetor adapter and heat deflector capscrews" below.
  • blower housing / sheet metal fastenerGAP: the blower-housing screws themselves have no printed figure — TP-2402-A says only "tighten securely." The cylinder head baffle screws that mount to the same area DO have a published torque — see that row above.

Kohler Command CV11-16 (Vertical Crankshaft, incl. CV460-465/CV490-495) Manufacturer-published

series CV11, CV12.5, CV13, CV14, CV15, CV16, CV460-465, CV490-495
All values from Kohler's official "Service Manual, Command CV11-16 / CV460-465 / CV490-495, Vertical Crankshaft," form TP-2339-D, hosted at… More about this engine ›

resources.kohler.com — the vertical-shaft companion to the CH11-16 manual above, same engine generation and different, older platform than the CH440 singles or the CV620-CV750 V-Twin below. Kohler's general torque-by-thread-size table and oil-drain-plug-by-thread table (identical text to TP-2402-A, p.1.13-1.14 here) cover any fastener without its own row below and without its own page-cited procedure; the crankcase oil drain plug DOES have an engine-specific figure from the "Change Oil" procedure (see that row) even though it is not in the Section 1 spec table. No distinct carburetor-mounting-screw or blower-housing-fastener torque is printed (see the two GAP rows below, same gap as CH11-16). Head bolts use the same 5-position pattern as CH11-16 (Fig. 11-44, identical layout): position 1 (left-centre, hi-temp cutout switch/long 90mm bolt) is torqued first, then 2 (top-right), 3 (bottom-left), 4 (top-left), 5 (bottom-right, between intake/exhaust ports) — Figure 11-44 is captioned "Cylinder Head Fastener Torque Sequence" and its five numbered positions ARE the tightening order, same as CH11-16's Fig. 11-35. CV11-16 has one procedural difference CH11-16 does not have: Kohler calls for Loctite® No. 59241 thread sealant on the two head bolts at positions 3 and 4. Verified 2026-09-19.

Fastener Torque Where it comes from
cylinder head bolt (2-stage) 30 ft-lbHigh
Final stage 40.7 N·m (30 ft-lb); initial stage 20 N·m (15 ft-lb) — genuinely lower than CH11-16's 48.9 N·m/36 ft-lb final, not a typo… Why › (horizontal vs. vertical crankshaft platforms). "Apply Loctite® No. 59241 thread sealant to the threads of two of the shorter (81 mm/3.1 in.) head bolts, and install them into location 3 and 4." Position 1 takes the long (90mm) bolt through the high-temp cutout switch when fitted; position 5's bolt length depends on spacer length. Sequence (Fig. 11-44, same 5-position layout as CH11-16's Fig. 11-35): 1 (left-centre) first, then 2 (top-right), 3 (bottom-left, Loctite), 4 (top-left, Loctite), 5 (bottom-right, between intake/exhaust ports). "Following the sequence in Figure 11-44, torque the bolts to 20 N·m (15 ft. lb.). Then repeat the sequence to a final torque of 40.7 N·m (30 ft. lb.)." New head bolts are always used.
connecting rod cap, 6mm straight shank6mm straight shank 100 in-lb≈ 8.3 ft-lbHigh 11.3 N·m, as printed by Kohler — same as CH11-16.
connecting rod cap, 8mm straight shank8mm straight shank 200 in-lb≈ 16.7 ft-lbHigh
22.7 N·m, as printed by Kohler (CH11-16 prints 22.6 N·m for the identical in-lb figure — a rounding difference between the two documents… Why › not a real torque difference).
connecting rod cap, 8mm step-down shank8mm step-down shank 130 in-lb≈ 10.8 ft-lbHigh 14.7 N·m, as printed by Kohler — same as CH11-16.
flywheel retaining screw 49 ft-lbHigh 66.4 N·m, as printed by Kohler — identical procedure and figure to CH11-16.
spark plug 18–22 ft-lbHigh
24.4-29.8 N·m, as printed by Kohler. Why › RC12YC (standard) or Premium Gold 2071 (Pro Series). Gap 1.02mm (0.040in) on CV11-15/CV460-465/CV490-495, 0.76mm (0.030in) on CV11-14 LP/CV16. Roughly 45% LOWER than CH11-16's spark-plug torque (38.0-43.4 N·m / 28-32 ft-lb) for what is nominally the same RC12YC plug — a real, quoted platform difference; never cross-apply the CH figure to a CV engine.
oil pan fastener (crankcase closure) 216 in-lb= 18 ft-lbHigh 24.4 N·m. Called "Oil Pan Fastener" here vs. "Closure Plate Fastener" on CH11-16 — same fastener role, same value.
oil filter torque 90–110 in-lbHigh
10.4-12.7 N·m, as printed by Kohler. Why › Unlike CH11-16 (which gives only a "3/4-1 turn" instruction for the spin-on filter, no numeric figure), CV11-16 prints a numeric oil filter torque.
oil filter drain plug (1/8" NPT)1/8" NPT 65–80 in-lbHigh 7.3-9.0 N·m, as printed by Kohler — same as CH11-16.
oil sentry pressure switch 60 in-lb= 5 ft-lbHigh 6.8 N·m, as printed by Kohler — same as CH11-16.
oil pump cover fastener 35–55 in-lbHigh
4.0-6.2 N·m. 6.2 N·m (55 in-lb) into a new as-cast hole; 4.0 N·m (35 in-lb) into a used hole — normal new/used order (contrast CH11-16's… Why › ignition-module row, which is internally inconsistent on this point).
rocker pedestal fastener 100 in-lb≈ 8.3 ft-lbHigh 11.3 N·m — higher than CH11-16's 88 in-lb (9.9 N·m) for the equivalent fastener.
rocker arm screw, non-adjustable valve lash configuration 100 in-lb≈ 8.3 ft-lbHigh 11.3 N·m, as printed by Kohler.
rocker arm pivot stud, adjustable valve lash configuration 100 in-lb≈ 8.3 ft-lbHigh 11.3 N·m, as printed by Kohler.
adjustment set screw, adjustable valve lash configuration 65 in-lb≈ 5.4 ft-lbHigh 7.3 N·m, as printed by Kohler.
valve cover fastener 65–95 in-lbHigh
7.3-10.7 N·m. 10.7 N·m (95 in-lb) into a new as-cast hole; 7.3 N·m (65 in-lb) into a used hole — same figures as CH11-16. Why › Torqued in the 5-screw numbered sequence shown in Figure 11-57 ("Valve Cover Torque Sequence," a 5-screw criss-cross MIRRORED relative to the head-bolt figure: 1 right-centre, 2 top-left, 3 bottom-right, 4 top-right, 5 lower-left), per TP-2339-D p.11.18.
muffler retaining nuts 216 in-lb= 18 ft-lbHigh 24.4 N·m, as printed by Kohler — same as CH11-16.
air cleaner base nut 88 in-lb≈ 7.3 ft-lbHigh 9.9 N·m, as printed by Kohler.
air cleaner wing nut 12 in-lb= 1 ft-lbHigh
1.5 N·m (12 in. lb.) exactly as printed — a rounding mismatch in the source document itself (1.5 N·m ≈ 13.3 in-lb); in-lb quoted verbatim. Why › No equivalent wing-nut row is printed for CH11-16.
carburetor fuel bowl retaining screw 45–55 in-lbHigh 5.1-6.2 N·m, as printed by Kohler.
stator mounting screw 55 in-lb≈ 4.6 ft-lbHigh 6.2 N·m, as printed by Kohler.
fan fastener 88 in-lb≈ 7.3 ft-lbHigh 9.9 N·m, as printed by Kohler.
fuel pump fastener 37–80 in-lbHigh 4.2-9.0 N·m. 9.0 N·m (80 in-lb) into a new as-cast hole; 4.2-5.1 N·m (37-45 in-lb) into a used hole — same as CH11-16's combined fuel pump/cover row.
fuel pump pad cover fastener 65–95 in-lbHigh
7.3-10.7 N·m. 10.7 N·m (95 in-lb) into a new as-cast hole; 7.3 N·m (65 in-lb) into a used hole. Why › CV11-16 prints this as a separate fastener from the fuel pump fastener above; CH11-16's manual combines the two into a single "Fuel Pump/Cover" line.
ignition module fastener 35–55 in-lbHigh
4.0-6.2 N·m. 6.2 N·m (55 in-lb) into a new as-cast hole; 4.0 N·m (35 in-lb) into a used hole — normal new/used order, unlike CH11-16's… Why › internally-inconsistent version of this row.
retractable starter center screw 65–75 in-lbHigh 7.4-8.5 N·m, as printed by Kohler — same as CH11-16.
governor control lever fastener 88 in-lb≈ 7.3 ft-lbHigh 9.9 N·m, as printed by Kohler.
speed control bracket assembly fastener 65–95 in-lbHigh 7.3-10.7 N·m. 10.7 N·m (95 in-lb) into a new as-cast hole; 7.3 N·m (65 in-lb) into a used hole.
electric starter thru bolt 40–84 in-lbHigh
4.5-7.5 N·m (40-84 in-lb), Nippendenso solenoid-shift, exactly as printed by Kohler — a mismatch in the source document itself, since 7.5… Why › N·m converts to about 66 in-lb by standard math, not 84 in-lb (same misprint as CH11-16). Per brand, all as printed and identical to CH11-16: UTE/Johnson Electric/Eaton (inertia drive) 4.5-5.7 N·m (40-50 in-lb); Nippendenso (solenoid shift) 4.5-7.5 N·m (40-84 in-lb); Delco-Remy (solenoid shift) 5.6-9.0 N·m (49-79 in-lb).
starter mounting screw torque (all) 135 in-lb≈ 11.3 ft-lbHigh 15.3 N·m, as printed by Kohler.
starter brush holder mounting screw, Delco-Remy 22–29 in-lbHigh 2.5-3.3 N·m, as printed by Kohler.
starter solenoid mounting hardware 35–79 in-lbHigh 4.0-9.0 N·m. Nippendenso 6.0-9.0 N·m (53-79 in-lb); Delco-Remy 4.0-6.0 N·m (35-53 in-lb).
starter solenoid positive (+) brush lead nut 53–106 in-lbHigh 6.0-12.0 N·m. Nippendenso 8.0-12.0 N·m (71-106 in-lb); Delco-Remy 6.0-9.0 N·m (53-79 in-lb).
breather reed retainer screwM5 35–55 in-lbHigh
3.9-6.2 N·m. "Install breather reed and reed retainer, secure with the M5 hex. flange screw. Why › Torque the screw to 6.2 N·m (55 in. lb.) in a new hole, or 3.9 N·m (35 in lb.) in a used hole." Same figures as CH11-16. TP-2339-D p.11.14.
starter drive stop nut (inertia-drive starters) 150–170 in-lbHigh
17.0-19.2 N·m. "...spring, stop gear spacer, and stop nut. Why › Torque the stop nut to 17.0-19.2 N·m (150-170 in. lb.)." Same figure as CH11-16. TP-2339-D §8, p.8.18.
crankcase oil drain plug 10 ft-lbHigh
13.6 N·m. "Reinstall the drain plug. Why › Make sure it is tightened to 13.6 N·m (10 ft. lb.) torque." TP-2339-D p.6.2, "Change Oil" step 2. CV11-16 has two drain plugs — carburetor side and starter side (Fig. 6-5) — same torque on both. This is a genuine engine-specific figure from the maintenance procedure, distinct from the generic by-thread-size oil-drain-plug table in Section 1.
2 specs not published — carburetor mounting screw, blower housing / sheet metal fastener What we found ›
  • carburetor mounting screwGAP: TP-2339-D does not print a distinct carburetor-mounting-screw torque for CV11-16 — only the fuel bowl retaining screw (see that row) is torqued.
  • blower housing / sheet metal fastenerGAP: no distinct blower-housing fastener torque is printed in TP-2339-D for this family (same gap as CH11-16).

What is the head bolt torque on a Kohler CH440 or CV730?

The Command PRO CH440 single uses a 2-stage sequence up to 57.5 N·m (509 in-lb, ~42 ft-lb). The Command V-Twins (CH640, CH730, CH740, CV640, CV730, CV740) use a different sequence — 22.6→41.8 N·m (200→370 in-lb, ~31 ft-lb final) for the bolt variant, or 16.9→35.5 N·m (150→315 in-lb, ~26 ft-lb final) for the nut variant with a new flat washer and nut on every stud, depending which hardware your engine uses — Kohler machines the heads for one or the other, so the two cannot be swapped. Do not mix the CH440 single-cylinder number with the V-Twin number — they are different platforms with different final torques.

What is the flywheel nut torque on a Kohler CH730 or CV730?

49 ft-lb (66.4 N·m), per Kohler's own Command V-Twin service manuals. That is different from the 7000 Series (KT715-KT745), which torques its flywheel screw to 55 ft-lb (74.5 N·m), and from the CH395/CH440 singles, which use a much higher 83 ft-lb (113 N·m) flywheel nut. Always use a flywheel holding tool, not an impact gun.

Do Kohler CH and CV V-Twins use identical torque specs?

Almost — but not quite. Kohler's own CH and CV service manuals match on every major fastener (head bolt, rod bolt, flywheel, spark plug) except one: the rocker arm "silver screw" (M6x1.0x45) torques to 105 in-lb per the CH manual but 120 in-lb per the CV manual, for what is otherwise the identical part. Match the number to your engine's actual CH or CV code, not just "V-twin."

What spark plug torque does Kohler use across its small engines?

27 N·m / 20 ft-lb — and it is the one number that is identical across every Kohler family we sourced: the CH395/CH440 singles, the CH/CV V-Twins (CH640, CH730, CV730, etc.), the 7000 Series (KT715-KT745), and the older Courage SV470-SV620. It is one of the few Kohler torque values you can trust across the whole lineup.

Is the Kohler Courage SV540 head bolt torque the same as a Command engine?

No. Courage SV470-SV620 tops out at 41.0 N·m (360 in-lb, ~30 ft-lb) on the final head-bolt stage, per Kohler's own SV service manual — a bit lower than the Command CH/CV V-Twin bolt variant's 41.8 N·m (370 in-lb). They are close enough to cause mix-ups, so check your engine code (SV vs CH/CV) before torquing. Courage SV head screws and the head gasket are also one-time-use — Kohler's SV manual says never to reuse them.

Where do these Kohler torque numbers come from?

Directly from Kohler's own service manual PDFs, hosted on resources.kohler.com: form 17 690 01 (CH245-CH440), TP-2402-A (CH11-CH16), TP-2339-D (CV11-CV16/CV460-495), 24 690 06 (CH18-CH25/CH620-CH750), 24 690 07 (CV17-CV25/CV620-CV750), 32 690 03 (KT610-KT745), and 20 690 01 (SV470-SV620) — not paraphrased from a parts-house blog. Where Kohler's own documents disagreed with each other (the CH-vs-CV rocker screw, an old vs. current CH440 oil-drain-plug revision, CH11-16's internally-inconsistent ignition-module row), both values are shown rather than silently picking one.

What is the head bolt torque on a Kohler CH11-16 or CV11-16?

CH11-16 (horizontal crankshaft) torques its 5-position head-bolt pattern to 24 N·m (18 ft-lb) first, then a final pass to 48.9 N·m (36 ft-lb). CV11-16 (vertical crankshaft) uses a lower sequence: 20 N·m (15 ft-lb) initial, 40.7 N·m (30 ft-lb) final — a genuine platform difference, not a typo, per Kohler's own TP-2402-A and TP-2339-D service manuals. New head bolts are required every time on both. CV11-16 has one extra step CH11-16 does not: Loctite® 59241 thread sealant on the two head bolts at positions 3 and 4.

What torque do I use on a Kohler CH11-16 or CV11-16 connecting rod?

Both engines use the same three rod-bolt variants and the same figures: 6mm straight-shank bolt 11.3 N·m (100 in-lb), 8mm straight-shank bolt 22.6-22.7 N·m (200 in-lb), and 8mm step-down bolt 14.7 N·m (130 in-lb). Check which shank type is actually on your rod before torquing — the three variants are not interchangeable figures.

Do the Kohler CH11-16 and CV11-16 spark plugs torque the same?

No — this is the one Kohler family in this dataset where CH and CV genuinely differ. CH11-16 specifies 38.0-43.4 N·m (28-32 ft-lb); CV11-16 specifies 24.4-29.8 N·m (18-22 ft-lb), roughly 45% lower, for the nominally identical RC12YC plug. Every other Kohler family covered here (CH395/CH440, the CH/CV V-Twins, 7000 Series, Courage SV) uses the same 27 N·m (20 ft-lb) figure across the board — CH11-16/CV11-16 is the exception.

Related lookups

Loading interactive lookup…