2018 Kia Sportage Lug Nut Torque & Bolt Specs

The 2018 Kia Sportage lug nut torque is 80 ft-lbs (108 Nm), tightened with a 21mm 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.

Lug nut torque: 80 ft-lbs (108 Nm) · Socket size: 21mm · Thread: M12x1.5.

This page is the OEM-referenced fastener summary for the 2018 Kia Sportage. 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 2018 Kia Sportage

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 2018 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 2018 Kia Sportage?

The OEM-specified lug-nut torque for the 2018 Kia Sportage is 80 ft-lbs (108 Nm), using a 21mm 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 2018 Kia Sportage lug nuts?

The 2018 Kia Sportage 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 2018 Kia Sportage 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 Sportage years

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

→ 2018 Kia Sportage oil drain plug torque & size

→ 2018 Kia Sportage suspension & steering torque specs (control arm, ball joint, tie rod)

All 36 2018 Kia Sportage fastener specs

Per-bolt torque, wrench size, and thread spec for the 2018 Kia Sportage, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 3 of the 36 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data.

Wheels — 2018 Kia Sportage

Wheel and lug nut spec for the 2018 Kia Sportage. For the all four wheels, plan for a 21mm tool on a M12x1.5 stud; final torque is 80 ft-lbs (108 Nm) (lug nut).

Engine — 2018 Kia Sportage

Engine bolt-by-bolt torque for the 2018 Kia Sportage, including the long block, valve covers, and intake. Valve cover bolt tightens to 7-10 ft-lbs, takes a 10mm Hex driver, runs on M6x1.0 threads, located at the valve cover. The oil drain plug uses a 17mm drive on a M14x1.5 thread, torqued to 25 ft-lbs (34 Nm) at the oil pan. At the engine block, the oil filter torques to 15 Nm (76mm drive, 3/4-16 UNF thread). Confirmed against manufacturer service literature. For the cylinder head, plan for a 16mm tool on a M14x1.25 stud; final torque is 18 ft-lbs (24 Nm) (spark plug). Alternator mounting bolt tightens to 30-40 ft-lbs, takes a 14mm Hex driver, runs on M10x1.25 threads, located at the engine block.

Drivetrain — 2018 Kia Sportage

Drivetrain and driveline fasteners for the 2018 Kia Sportage — axle, transmission, and differential plugs. The transmission mount bolt uses a 17mm Hex drive on a M12x1.25 thread, torqued to 55-70 ft-lbs at the transmission crossmember. At the center support bearing, the driveshaft center support bolt torques to 30-40 ft-lbs (14mm Hex drive, M10x1.25 thread). For the rear hub, plan for a 32mm Hex tool on a M24x1.5 stud; final torque is 170-200 ft-lbs (axle nut rear). Axle nut front tightens to 170-200 ft-lbs, takes a 32mm Hex driver, runs on M24x1.5 threads, located at the front hub.

Suspension — 2018 Kia Sportage

Suspension and chassis fastener torque for the 2018 Kia Sportage — strut, control arm, and sway bar values. At the front subframe, the front lower control arm front bolt torques to 70-85 ft-lbs (17mm Hex drive, M12x1.25 thread). For the subframe, plan for a 19mm tool on a M14x1.5 stud; final torque is 137 Nm (front lower control arm). Front tie rod end nut tightens to 50 Nm, takes a 19mm driver, runs on M14x1.5 threads, located at the knuckle. The front strut upper nut uses a 17mm drive on a M12x1.5 thread, torqued to 50 Nm at the strut tower. At the rear subframe mount, the front lower control arm rear bolt torques to 70-85 ft-lbs (17mm Hex drive, M12x1.25 thread). For the shock tower, plan for a 17mm Hex tool on a M12x1.25 stud; final torque is 35-45 ft-lbs (rear shock absorber upper nut). Stabilizer bar link nut front tightens to 25-35 ft-lbs, takes a 14mm Hex driver, runs on M10x1.25 threads, located at the sway bar end link. The rear shock lower bolt uses a 17mm drive on a M12x1.5 thread, torqued to 118 Nm at the rear axle. At the strut tower, the front strut top mount nut torques to 30-40 ft-lbs (21mm Hex drive, M14x1.5 thread). For the knuckle, plan for a 18mm tool on a M14x1.5 stud; final torque is 190 Nm (front strut lower bolt). Rear shock absorber lower bolt tightens to 85-100 ft-lbs, takes a 21mm Hex driver, runs on M14x1.5 threads, located at the rear knuckle.

Steering — 2018 Kia Sportage

Steering linkage fasteners on the 2018 Kia Sportage. For the steering column, plan for a 24mm Hex tool on a M16x1.5 stud; final torque is 30-38 ft-lbs (steering wheel center bolt). Tie rod end nut tightens to 25-33 ft-lbs, takes a 17mm Castle driver, runs on M12x1.25 threads, located at the steering knuckle.

Body — 2018 Kia Sportage

Body fasteners on the 2018 Kia Sportage. Hood hinge bolt tightens to 15-20 ft-lbs, takes a 12mm Hex driver, runs on M8x1.25 threads, located at the hood hinge.

Brake — 2018 Kia Sportage

Brake fasteners on the 2018 Kia Sportage. The rear brake caliper bolt uses a 14mm drive on a M10x1.25 thread, torqued to 23 Nm at the rear caliper. At the front hub, the front brake caliper bracket torques to 95 Nm (17mm drive, M14x1.5 thread). For the rear knuckle, plan for a 17mm Hex tool on a M12x1.25 stud; final torque is 50-65 ft-lbs (rear brake caliper bracket bolt). Front brake caliper guide pin bolt tightens to 22-30 ft-lbs, takes a 14mm Hex driver, runs on M10x1.25 threads, located at the caliper bracket. Confirmed against manufacturer service literature. The front brake caliper bolt uses a 17mm drive on a M12x1.5 thread, torqued to 34 Nm at the front caliper. At the front knuckle, the front brake caliper bracket bolt torques to 55-70 ft-lbs (17mm Hex drive, M12x1.25 thread). For the rear hub, plan for a 17mm tool on a M14x1.5 stud; final torque is 69 Nm (rear brake caliper bracket). Rear brake caliper guide pin bolt tightens to 20-28 ft-lbs, takes a 14mm Hex driver, runs on M10x1.25 threads, located at the caliper bracket. This figure is independently verified against OEM service data.

Wheel — 2018 Kia Sportage

Wheel fasteners on the 2018 Kia Sportage. At the front, the front axle nut torques to 240 Nm (32mm drive, M24x1.5 thread). For the front/rear, plan for a 21mm tool on a M12x1.5 stud; final torque is 80 ft-lbs (108 Nm) (wheel lug nut). Wheel lug nuts tightens to 80 ft-lbs (108 Nm), takes a 19mm Hex driver, runs on M12x1.5 threads, located at the wheel hub. The rear axle nut uses a 32mm drive on a M24x1.5 thread, torqued to 240 Nm at the rear.

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 2018 Kia Sportage numbers above.

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