2015 Jeep Wrangler Lug Nut Torque & Bolt Specs

The 2015 Jeep Wrangler lug nut torque is 130 ft-lbs (176 Nm), tightened with a 21mm socket on M14x1.5 studs. Torque in a star pattern in two passes (snug, then final), and re-check after the first 50–100 miles of driving. Use a calibrated torque wrench — not an impact gun — for the final pass.

Lug nut torque: 130 ft-lbs (176 Nm) · Socket size: 21mm · Thread: M14x1.5.

This page is the OEM-referenced fastener summary for the 2015 Jeep Wrangler. Use it before any maintenance or repair job where torque values matter — brake work, wheel changes, suspension service, engine teardowns, or oil changes. Specs are pulled from manufacturer service literature, cross-checked against community data, and updated as new chassis variants become available.

Stellantis (Jeep/Ram/Dodge/Chrysler) torque values: Wrangler/Cherokee lug nuts spec 100 ft-lbs (135 Nm), Ram 1500 specs 135 ft-lbs (183 Nm), Ram 2500/3500 specs 160 ft-lbs (217 Nm). Most use a 19mm or 22mm socket with M14x1.5 thread on trucks. The Wrangler's hub-centric ring is critical — do not run hub-piloted wheels without it.

JK generation (2007–2018)

The 2015 Wrangler JK (2007–2018) keeps Jeep's traditional body-on-frame build with solid front and rear live axles and removable doors. From 2012 its engine was the 3.6-liter Pentastar V6 (285 hp), which replaced the earlier 3.8-liter V6's 202 hp.

The JK uses a five-lug wheel on a 5x127mm (5x5-inch) pattern — but with SAE 1/2-inch-20 lug nuts, not a metric thread, so don't assume metric hardware on this generation.

Common fastener categories on the 2015 Jeep Wrangler

Wheel / lug nut torque and thread spec (covered above)
Brake caliper bracket bolts (typically 80-130 ft-lbs) and slide/guide pins (18-35 ft-lbs)
Engine oil drain plug torque — rarely above 30 ft-lbs; always use a new crush washer
Transmission pan, valve cover, and intake manifold bolts (low torque, often 89-106 in-lbs)
Suspension control arm, sway bar, tie rod end and ball joint torque
Spark plug torque (typically 10-15 ft-lbs on aluminum heads — do not exceed)
Differential cover bolts (RWD/4WD only) and transfer case fasteners

Repair guidance for this model year

For 2015 model-year work: This era introduced widespread torque-to-yield (TTY) bolts on head, main, and crank pulley fasteners. TTY bolts stretch permanently when torqued and must not be reused — the spec calls for a fresh bolt every time. Always verify TTY status against the FSM before reassembly.

Tools you will need

Metric socket set (8mm-22mm), 6-point impact-rated
Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
Breaker bar (24" minimum) for initial loosening
Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
Anti-seize on stainless or dissimilar-metal threads; thread-locker (Loctite blue) on critical reassembly

Frequently asked questions

What is the lug nut torque on a 2015 Jeep Wrangler?

The OEM-specified lug-nut torque for the 2015 Jeep Wrangler is 130 ft-lbs (176 Nm), using a 21mm socket on M14x1.5 thread studs. Use a calibrated torque wrench in a star pattern, in two passes (50% and 100%), and re-check after 50-100 miles of driving.

What socket size do I need for the 2015 Jeep Wrangler lug nuts?

The 2015 Jeep Wrangler uses a 21mm socket. A 6-point impact-rated socket is recommended over a 12-point chrome socket — 12-points round off lug nuts under impact-driver use.

Are the 2015 Jeep Wrangler fasteners metric or SAE?

Metric is the standard for this vehicle. Most fasteners on this vehicle are metric (M6, M8, M10, M12, M14). Bring a full metric set; SAE substitutes can round the head. Bolt-head markings are the fastest way to confirm grade and material at the bench.

Other Jeep Wrangler years

Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.

All 30 2015 Jeep Wrangler fastener specs

Per-bolt torque, wrench size, and thread spec for the 2015 Jeep Wrangler, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both.

Wheels — 2015 Jeep Wrangler

Wheel and lug nut spec for the 2015 Jeep Wrangler. At the wheel hub, the wheel lug nut torques to 130 ft-lbs (176 Nm) (21mm drive, M14x1.5 thread).

Engine — 2015 Jeep Wrangler

Engine bolt-by-bolt torque for the 2015 Jeep Wrangler, including the long block, valve covers, and intake. For the rod, plan for a 12mm tool on a M9x1.0 stud; final torque is Step 1: 20 ft-lbs, Step 2: 90° (rod cap bolt). Cylinder head bolt tightens to Step 1: 37 ft-lbs, Step 2: 89°, takes a 12mm driver, runs on M10x1.5 threads, located at the block. The radiator mount bolt uses a 13mm drive on a M8x1.25 thread, torqued to 18 ft-lbs at the core support. At the camshaft, the cam phaser bolt torques to 85 ft-lbs (16mm drive, M12x1.5 thread). plan for a 14mm tool on a M12x1.25 stud; final torque is 13 ft-lbs (18 Nm) (spark plug). Oil pump bolt tightens to 12 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the front cover. The timing chain tensioner uses a 10mm drive on a M6x1.0 thread, torqued to 12 ft-lbs at the front cover. At the oil pan, the oil drain plug torques to 25 ft-lbs (13mm drive, M12x1.75 thread). For the block, plan for a 14mm tool on a M12x1.75 stud; final torque is Step 1: 45 ft-lbs, Step 2: 90° (main cap bolt). Engine oil drain plug tightens to 20 ft-lbs (27 Nm), takes a 13mm driver, runs on M14x1.5 threads. The thermostat housing bolt uses a 10mm drive on a M6x1.0 thread, torqued to 12 ft-lbs at the cylinder head. At the camshaft, the cam sprocket bolt torques to 65 ft-lbs (15mm drive, M12x1.5 thread). For the water pump, plan for a 36mm tool on a M24x1.5 stud; final torque is 65 ft-lbs (fan clutch nut). Intake manifold bolt tightens to 18 ft-lbs, takes a 13mm driver, runs on M8x1.25 threads, located at the cylinder head. The throttle body bolt uses a 10mm drive on a M6x1.0 thread, torqued to 12 ft-lbs at the intake. At the front cover, the idler pulley bolt torques to 40 ft-lbs (15mm drive, M10x1.5 thread). For the head, plan for a 8mm tool on a M5x0.8 stud; final torque is 71 in-lbs (valve cover bolt).

Electrical — 2015 Jeep Wrangler

Electrical fasteners on the 2015 Jeep Wrangler. Engine ground strap bolt tightens to 8 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the engine block to frame. The fuel pump ground wire bolt uses a 10mm drive on a M6x1.0 thread, torqued to 8 ft-lbs at the fuel pump to frame. At the body to frame, the body ground strap bolt torques to 8 ft-lbs (10mm drive, M6x1.0 thread). For the sensor ground to frame, plan for a 10mm tool on a M6x1.0 stud; final torque is 8 ft-lbs (o2 sensor ground bolt). Pcm ground bolt tightens to 8 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the pcm ground to body. The radio ground wire bolt uses a 10mm drive on a M6x1.0 thread, torqued to 8 ft-lbs at the radio chassis to body. At the transmission to frame, the transmission ground strap bolt torques to 8 ft-lbs (10mm drive, M6x1.0 thread). For the alternator to engine block, plan for a 10mm tool on a M6x1.0 stud; final torque is 8 ft-lbs (alternator ground strap bolt). Abs module ground bolt tightens to 8 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the abs module to frame. The tipm ground bolt uses a 10mm drive on a M6x1.0 thread, torqued to 8 ft-lbs at the tipm to body. At the starter to engine block, the starter ground cable bolt torques to 15 ft-lbs (13mm drive, M8x1.25 thread). For the battery negative to frame, plan for a 13mm tool on a M8x1.25 stud; final torque is 15 ft-lbs (battery ground cable bolt).

New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then use the 2015 Jeep Wrangler numbers above.

Loading the interactive 2015 Jeep Wrangler fastener lookup with per-bolt filtering, part links, and torque tools…