2015 Kia Carnival Lug Nut Torque & Bolt Specs

The 2015 Kia Carnival lug nut torque is 87 ft-lbs, 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: 87 ft-lbs · Socket size: 21mm · Thread: M12x1.5.

This page is the OEM-referenced fastener summary for the 2015 Kia Carnival. 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 2015 Kia Carnival

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 Kia Carnival?

The OEM-specified lug-nut torque for the 2015 Kia Carnival is 87 ft-lbs, 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 2015 Kia Carnival lug nuts?

The 2015 Kia Carnival 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 Kia Carnival 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 Carnival years

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

→ 2015 Kia Carnival oil drain plug torque & size

→ 2015 Kia Carnival suspension & steering torque specs (control arm, ball joint, tie rod)

All 36 2015 Kia Carnival fastener specs

Per-bolt torque, wrench size, and thread spec for the 2015 Kia Carnival, 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 Kia Carnival

Wheel and lug nut spec for the 2015 Kia Carnival. The lug nut uses a 21mm drive on a M12x1.5 thread, torqued to 87 ft-lbs at the wheel hub.

Brakes — 2015 Kia Carnival

Brake fasteners on the 2015 Kia Carnival — caliper bracket, slide pins, and banjo bolt torque follow. At the caliper bracket, the rear caliper bracket torques to 58 ft-lbs (17mm drive, M12x1.5 thread). For the caliper slide, plan for a 14mm tool on a M10x1.25 stud; final torque is 20 ft-lbs (rear slide pin). Front caliper bracket bolt tightens to 73 ft-lbs, takes a 19mm driver, runs on M14x1.5 threads, located at the caliper bracket. The front slide pin uses a 14mm drive on a M10x1.25 thread, torqued to 22 ft-lbs at the caliper slide.

Engine — 2015 Kia Carnival

Engine bolt-by-bolt torque for the 2015 Kia Carnival, including the long block, valve covers, and intake. For the oil pan, plan for a 17mm tool on a M14x1.5 stud; final torque is 29 ft-lbs (oil pan drain plug). Exhaust manifold tightens to 33 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the exhaust manifold. The alternator mounting bolt is a M10x1.25 thread, torqued to 30-40 ft-lbs. 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). Intake manifold tightens to 18 ft-lbs, takes a 12mm driver, runs on M8x1.25 threads, located at the intake manifold. The valve cover uses a 10mm drive on a M6x1.0 thread, torqued to 7 ft-lbs at the valve cover. The valve cover bolt torques to 7-10 ft-lbs (M6x1.0 thread).

Drivetrain — 2015 Kia Carnival

Drivetrain and driveline fasteners for the 2015 Kia Carnival — axle, transmission, and differential plugs. Axle nut rear tightens to 170-200 ft-lbs, runs on M24x1.5 threads. The axle nut front is a M24x1.5 thread, torqued to 170-200 ft-lbs. The transmission mount bolt torques to 55-70 ft-lbs (M12x1.25 thread).

Suspension — 2015 Kia Carnival

Suspension and chassis fastener torque for the 2015 Kia Carnival — strut, control arm, and sway bar values. The front strut mount uses a 17mm drive on a M12x1.5 thread, torqued to 40 ft-lbs at the strut top mount. The rear shock absorber lower bolt torques to 85-100 ft-lbs (M14x1.5 thread). plan for the right driver on a M14x1.5 stud; final torque is 30-40 ft-lbs (front strut top mount nut). Sway bar link tightens to 37 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the sway bar link. The front lower control arm front bolt is a M12x1.25 thread, torqued to 70-85 ft-lbs. At the ball joint, the ball joint torques to 59 ft-lbs (19mm drive, M14x1.5 thread). plan for the right driver 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, runs on M10x1.25 threads. The control arm uses a 19mm drive on a M14x1.5 thread, torqued to 59 ft-lbs at the control arm. The front lower control arm rear bolt torques to 70-85 ft-lbs (M12x1.25 thread).

Steering — 2015 Kia Carnival

Steering linkage fasteners on the 2015 Kia Carnival. The power steering pump bolt torques to 22-30 ft-lbs (M10x1.25 thread). plan for the right driver on a M12x1.25 stud; final torque is 25-33 ft-lbs (tie rod end nut). Steering wheel center bolt tightens to 30-38 ft-lbs, runs on M16x1.5 threads.

Body — 2015 Kia Carnival

Body fasteners on the 2015 Kia Carnival. plan for the right driver on a M8x1.25 stud; final torque is 15-20 ft-lbs (hood hinge bolt).

Brake — 2015 Kia Carnival

Brake fasteners on the 2015 Kia Carnival. Front brake caliper guide pin bolt tightens to 22-30 ft-lbs, runs on M10x1.25 threads. The rear brake caliper bracket bolt is a M12x1.25 thread, torqued to 50-65 ft-lbs. The front brake caliper bracket bolt torques to 55-70 ft-lbs (M12x1.25 thread). plan for the right driver on a M10x1.25 stud; final torque is 20-28 ft-lbs (rear brake caliper guide pin bolt).

Transmission — 2015 Kia Carnival

Transmission fasteners on the 2015 Kia Carnival. The trans mount uses a 17mm drive on a M12x1.5 thread, torqued to 58 ft-lbs at the transmission mount.

Wheel — 2015 Kia Carnival

Wheel fasteners on the 2015 Kia Carnival. The wheel lug nuts torques to 80-90 ft-lbs (M12x1.5 thread).

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 Kia Carnival numbers above.

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