2019 Kia Rio Lug Nut Torque & Bolt Specs

The 2019 Kia Rio lug nut torque is 80 ft-lb, tightened with a 21mm hex socket on M12x1.5 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. The wheel bolt pattern is 4x100.

Lug nut torque: 80 ft-lb · Socket size: 21mm hex · Thread: M12x1.5 · Bolt pattern: 4x100.

This page is the OEM-referenced fastener summary for the 2019 Kia Rio. 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.

Hyundai/Kia lug-nut torque is 79-88 ft-lbs on nearly all passenger models, M12x1.5 thread, 21mm socket. The Tucson, Sportage, and Santa Fe all use the same fastener spec. Hyundai's oil drain plug threads are unusually fine-pitch and strip easily — always use a torque wrench, not feel.

Common fastener categories on the 2019 Kia Rio

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 2019 late-model work: Modern vehicles increasingly use aluminum body and suspension components. Aluminum fastener torque is typically 60-70% of equivalent steel torque, and aluminum threads strip easily. Use a calibrated torque wrench and apply anti-seize on any steel fastener threading into aluminum.

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 2019 Kia Rio?

The OEM-specified lug-nut torque for the 2019 Kia Rio is 80 ft-lb, using a 21mm hex socket on M12x1.5 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 2019 Kia Rio lug nuts?

The 2019 Kia Rio uses a 21mm hex 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 2019 Kia Rio 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 Kia Rio years

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

→ 2019 Kia Rio oil drain plug torque & size

→ 2019 Kia Rio suspension & steering torque specs (control arm, ball joint, tie rod)

All 36 2019 Kia Rio fastener specs

Per-bolt torque, wrench size, and thread spec for the 2019 Kia Rio, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both.

Brakes — 2019 Kia Rio

Brake fasteners on the 2019 Kia Rio — caliper bracket, slide pins, and banjo bolt torque follow. For the rear (disc brake models), plan for a 14mm hex tool on a M12 stud; final torque is 40 ft-lb (rear brake caliper bracket bolt). Front brake caliper slide pin tightens to 20 ft-lb, takes a 12mm hex driver, runs on M10 threads, located at the front caliper. The front brake caliper bracket bolt uses a 14mm hex drive on a M12 thread, torqued to 65 ft-lb at the front knuckle.

Engine — 2019 Kia Rio

Engine bolt-by-bolt torque for the 2019 Kia Rio, including the long block, valve covers, and intake. Oil pan bolts tightens to 8.5 ft-lbs (11.5 N·m), takes a 10mm driver, runs on M6 x 1.0 threads, located at the oil system. The timing belt/chain tensioner bolt uses a 13mm drive on a M8 x 1.25 thread, torqued to 18.5 ft-lbs (25 N·m) at the timing system. At the cylinder head, the valve cover bolts torques to 5.5 ft-lbs (7.5 N·m) (10mm drive, M6 x 1.0 thread). For the intake and exhaust, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 24.5 ft-lbs (33 N·m) (exhaust manifold bolts). Spark plug tightens to 15 ft-lb, takes a 5/8" (16mm) driver, runs on M14x1.25 threads, located at the cylinder head. The main bearing bolts uses a 17mm drive on a M12 x 1.5 thread, torqued to 64.5 ft-lbs (87.5 N·m) at the crankshaft and bearings. At the timing system, the camshaft sprocket bolt torques to 39 ft-lbs (53 N·m) (14mm drive, M10 x 1.25 thread). For the engine oil pan, plan for a 17mm hex tool on a M14x1.5 stud; final torque is 27 ft-lb (oil drain plug). Flywheel bolts tightens to 57.5 ft-lbs (78 N·m), takes a 14mm driver, runs on M10 x 1.25 threads, located at the crankshaft and bearings. The cylinder head bolts uses a 14mm drive on a M10 x 1.25 thread, torqued to Step 1: 18 ft-lbs (25 N·m), Step 2: 22 ft-lbs (30 N·m) at the cylinder head. At the intake and exhaust, the intake manifold bolts torques to 13 ft-lbs (17.5 N·m) (13mm drive, M8 x 1.25 thread).

Drivetrain — 2019 Kia Rio

Drivetrain and driveline fasteners for the 2019 Kia Rio — axle, transmission, and differential plugs. The front axle hub nut uses a 32mm hex drive on a M24x1.5 thread, torqued to 185 ft-lb at the front hub.

Suspension — 2019 Kia Rio

Suspension and chassis fastener torque for the 2019 Kia Rio — strut, control arm, and sway bar values. At the suspension and steering, the control arm bolts torques to 75 ft-lbs (102 N·m) (21mm drive, M14 x 1.5 thread). For the suspension and steering, plan for a 21mm tool on a M14 x 1.5 stud; final torque is 75 ft-lbs (102 N·m) (steering gear/rack bolts). Tie rod end nut tightens to 33 ft-lbs (45 N·m), takes a 17mm driver, runs on M12 x 1.5 threads, located at the suspension and steering. The strut/shock absorber mounting bolts uses a 17mm drive on a M12 x 1.5 thread, torqued to 35 ft-lbs (47 N·m) at the suspension and steering. At the suspension and steering, the ball joint nut torques to 45 ft-lbs (61 N·m) (24mm drive, M16 x 1.5 thread). For the suspension and steering, plan for a 17mm tool on a M12 x 1.5 stud; final torque is 35 ft-lbs (47 N·m) (sway bar link nut).

Body — 2019 Kia Rio

Body fasteners on the 2019 Kia Rio. For the body and frame, plan for a 13mm tool on a M8 x 1.25 stud; final torque is 22 ft-lbs (30 N·m) (bumper mounting bolts). Hood hinge bolts tightens to 17 ft-lbs (23 N·m), takes a 10mm driver, runs on M6 x 1 threads, located at the body and frame. The body mount bolts uses a 21mm drive on a M14 x 1.5 thread, torqued to 45 ft-lbs (61 N·m) at the body and frame. At the body and frame, the fender bolts torques to 17 ft-lbs (23 N·m) (10mm drive, M6 x 1 thread).

Wheel Hardware — 2019 Kia Rio

Wheel Hardware fasteners on the 2019 Kia Rio. Lug nut tightens to 80 ft-lb, takes a 21mm hex driver, runs on M12x1.5 threads, located at the all wheels.

Transmission — 2019 Kia Rio

Transmission fasteners on the 2019 Kia Rio. The transmission mounting bolts uses a 21mm drive on a M14 x 1.5 thread, torqued to 47 ft-lbs (64 N·m) at the transmission mounting. At the valve body, the valve body bolts torques to 15 ft-lbs (20 N·m) (14mm drive, M10 x 1.25 thread). For the transmission fluid drain and fill, plan for a 17mm tool on a M12 x 1.5 stud; final torque is 29 ft-lbs (39 N·m) (transmission fluid drain/fill plug). Transmission cooler line fittings tightens to 12 ft-lbs (16 N·m), takes a 14mm driver, runs on M10 x 1.25 threads, located at the transmission cooler lines. The torque converter bolts uses a 21mm drive on a M14 x 1.5 thread, torqued to 30 ft-lbs (41 N·m) at the torque converter. At the transmission fluid drain and fill, the transmission drain and fill plugs torques to 27 ft-lbs (37 N·m) (17mm drive, M12 x 1.5 thread). For the transmission case, plan for a 24mm tool on a M16 x 1.5 stud; final torque is 40 ft-lbs (54 N·m) (transmission case bolts). Transmission oil pan bolts tightens to 71 in-lbs (8 N·m), takes a 14mm driver, runs on M10 x 1.25 threads, located at the transmission oil pan.

Lug Nut — 2019 Kia Rio

Lug Nut fasteners on the 2019 Kia Rio. At the wheel, the wheel lug nut torques to 80 ft-lb (108 Nm) (17mm drive, M12x1.5 thread).

Oil Drain Plug — 2019 Kia Rio

Oil Drain Plug fasteners on the 2019 Kia Rio. For the oil pan, plan for a 16mm tool on a M14x1.5 stud; final torque is 29 ft-lb (39 Nm) (engine oil drain plug).

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 2019 Kia Rio numbers above.

Loading the interactive 2019 Kia Rio fastener lookup with per-bolt filtering, part links, and torque tools…