2023 Kia Rio Lug Nut Torque & Bolt Specs

The 2023 Kia Rio lug nut torque is 80-90 ft-lbs, tightened with a 17mm 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: 80-90 ft-lbs · Socket size: 17mm · Thread: M12x1.5 · Bolt pattern: 4x100.

This page is the OEM-referenced fastener summary for the 2023 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 2023 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 2023 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 2023 Kia Rio?

The OEM-specified lug-nut torque for the 2023 Kia Rio is 80-90 ft-lbs, using a 17mm 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 2023 Kia Rio lug nuts?

The 2023 Kia Rio uses a 17mm 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 2023 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.

→ 2023 Kia Rio oil drain plug torque & size

→ 2023 Kia Rio suspension & steering torque specs (control arm, ball joint, tie rod)

→ 2023 Kia Rio engine & transmission mount torque specs

All 54 2023 Kia Rio fastener specs

Per-bolt torque, wrench size, and thread spec for the 2023 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.

Wheels — 2023 Kia Rio

Wheel and lug nut spec for the 2023 Kia Rio. Lug nut tightens to 79-94 ft-lbs (87 ft-lbs target), takes a 21mm driver, runs on M12x1.5 threads, located at the all four wheels.

Brakes — 2023 Kia Rio

Brake fasteners on the 2023 Kia Rio — caliper bracket, slide pins, and banjo bolt torque follow. The front brake caliper slide pin uses a 12mm hex drive on a M10 thread, torqued to 20 ft-lb at the front caliper.

Engine — 2023 Kia Rio

Engine bolt-by-bolt torque for the 2023 Kia Rio, including the long block, valve covers, and intake. At the crankshaft and bearings, the flywheel bolts torques to 57.5 ft-lbs (78 N·m) (14mm drive, M10 x 1.25 thread). plan for the right driver on a M6x1.0 stud; final torque is 7-10 ft-lbs (valve cover bolt). Camshaft sprocket bolt tightens to 39 ft-lbs (53 N·m), takes a 14mm driver, runs on M10 x 1.25 threads, located at the timing system. The engine mount bolt uses a 17mm drive on a M12x1.75 thread, torqued to 43-47 ft-lbs at the engine mount. 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). 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). Main bearing bolts tightens to 64.5 ft-lbs (87.5 N·m), takes a 17mm driver, runs on M12 x 1.5 threads, located at the crankshaft and bearings. The valve cover bolts uses a 10mm drive on a M6 x 1.0 thread, torqued to 5.5 ft-lbs (7.5 N·m) at the cylinder head. The oil drain plug torques to 25-33 ft-lbs (M14x1.5 thread). plan for the right driver on a M14x1.25 stud; final torque is 13-17 ft-lbs (spark plug). Timing belt/chain tensioner bolt tightens to 18.5 ft-lbs (25 N·m), takes a 13mm driver, runs on M8 x 1.25 threads, located at the timing system. The oil pan bolts uses a 10mm drive on a M6 x 1.0 thread, torqued to 8.5 ft-lbs (11.5 N·m) at the oil system. The alternator mounting bolt torques to 30-40 ft-lbs (M10x1.25 thread). For the cylinder head, plan for a 14mm tool on a M10 x 1.25 stud; final torque is Step 1: 18 ft-lbs (25 N·m), Step 2: 22 ft-lbs (30 N·m) (cylinder head bolts).

Drivetrain — 2023 Kia Rio

Drivetrain and driveline fasteners for the 2023 Kia Rio — axle, transmission, and differential plugs. plan for the right driver on a M12x1.25 stud; final torque is 55-70 ft-lbs (transmission mount bolt). Front axle hub nut tightens to 185 ft-lb, takes a 32mm hex driver, runs on M24x1.5 threads, located at the front hub. The axle nut rear is a M24x1.5 thread, torqued to 170-200 ft-lbs. The axle nut front torques to 170-200 ft-lbs (M24x1.5 thread).

Suspension — 2023 Kia Rio

Suspension and chassis fastener torque for the 2023 Kia Rio — strut, control arm, and sway bar values. Rear shock absorber upper nut tightens to 35-45 ft-lbs, runs on M12x1.25 threads. The front strut top mount nut is a M14x1.5 thread, torqued to 30-40 ft-lbs. 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 17mm tool on a M12 x 1.5 stud; final torque is 35 ft-lbs (47 N·m) (strut/shock absorber mounting bolts). Sway bar link nut tightens to 35 ft-lbs (47 N·m), takes a 17mm driver, runs on M12 x 1.5 threads, located at the suspension and steering. The steering gear/rack bolts uses a 21mm drive on a M14 x 1.5 thread, torqued to 75 ft-lbs (102 N·m) at the suspension and steering. The rear shock absorber lower bolt torques to 85-100 ft-lbs (M14x1.5 thread). plan for the right driver on a M10x1.25 stud; final torque is 25-35 ft-lbs (stabilizer bar link nut front). Front lower control arm rear bolt tightens to 70-85 ft-lbs, runs on M12x1.25 threads. The front lower control arm front bolt is a M12x1.25 thread, torqued to 70-85 ft-lbs. At the suspension and steering, the ball joint nut torques to 45 ft-lbs (61 N·m) (24mm drive, M16 x 1.5 thread).

Steering — 2023 Kia Rio

Steering linkage fasteners on the 2023 Kia Rio. The tie rod end nut is a M12x1.25 thread, torqued to 25-33 ft-lbs. The steering wheel center bolt torques to 30-38 ft-lbs (M16x1.5 thread). plan for the right driver on a M10x1.25 stud; final torque is 22-30 ft-lbs (power steering pump bolt).

Body — 2023 Kia Rio

Body fasteners on the 2023 Kia Rio. At the body and frame, the hood hinge bolts torques to 17 ft-lbs (23 N·m) (10mm drive, M6 x 1 thread). plan for the right driver on a M8x1.25 stud; final torque is 15-20 ft-lbs (hood hinge bolt). Fender 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 bumper mounting bolts torques to 22 ft-lbs (30 N·m) (13mm drive, M8 x 1.25 thread).

Brake — 2023 Kia Rio

Brake fasteners on the 2023 Kia Rio. plan for the right driver on a M12x1.25 stud; final torque is 50-65 ft-lbs (rear brake caliper bracket bolt). Front brake caliper bracket bolt tightens to 55-70 ft-lbs, runs on M12x1.25 threads. The front brake caliper guide pin bolt is a M10x1.25 thread, torqued to 22-30 ft-lbs. The rear brake caliper guide pin bolt torques to 20-28 ft-lbs (M10x1.25 thread).

Wheel — 2023 Kia Rio

Wheel fasteners on the 2023 Kia Rio. Wheel lug nuts tightens to 80-90 ft-lbs, takes a 17mm driver, runs on M12x1.5 threads.

Transmission — 2023 Kia Rio

Transmission fasteners on the 2023 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 transmission case, the transmission case bolts torques to 40 ft-lbs (54 N·m) (24mm drive, M16 x 1.5 thread). For the torque converter, plan for a 21mm tool on a M14 x 1.5 stud; final torque is 30 ft-lbs (41 N·m) (torque converter bolts). 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 transmission drain and fill plugs uses a 17mm drive on a M12 x 1.5 thread, torqued to 27 ft-lbs (37 N·m) at the transmission fluid drain and fill. At the transmission fluid drain and fill, the transmission fluid drain/fill plug torques to 29 ft-lbs (39 N·m) (17mm drive, M12 x 1.5 thread). For the transmission oil pan, plan for a 14mm tool on a M10 x 1.25 stud; final torque is 71 in-lbs (8 N·m) (transmission oil pan bolts). Valve body bolts tightens to 15 ft-lbs (20 N·m), takes a 14mm driver, runs on M10 x 1.25 threads, located at the valve body.

Lug Nut — 2023 Kia Rio

Lug Nut fasteners on the 2023 Kia Rio. At the wheel, the wheel lug nut torques to 80 ft-lb (108 Nm) (17mm drive, M12x1.5 thread).

Oil Drain Plug — 2023 Kia Rio

Oil Drain Plug fasteners on the 2023 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 2023 Kia Rio numbers above.

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