2025 Kia Carnival Lug Nut Torque & Bolt Specs

The 2025 Kia Carnival 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 2025 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 2025 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 2025 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 2025 Kia Carnival?

The OEM-specified lug-nut torque for the 2025 Kia Carnival 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 2025 Kia Carnival lug nuts?

The 2025 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 2025 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.

→ 2025 Kia Carnival oil drain plug torque & size

→ 2025 Kia Carnival suspension & steering torque specs (control arm, ball joint, tie rod)

All 26 2025 Kia Carnival fastener specs

Per-bolt torque, wrench size, and thread spec for the 2025 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. 6 of the 26 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Wheels — 2025 Kia Carnival

Wheel and lug nut spec for the 2025 Kia Carnival. Lug nut tightens to 80 ft-lbs (108 Nm), takes a 21mm driver, runs on M12x1.5 threads, located at the all four wheels.

Engine — 2025 Kia Carnival

Engine bolt-by-bolt torque for the 2025 Kia Carnival, including the long block, valve covers, and intake. The spark plug uses a 22mm drive on a M14x1.25 thread, torqued to 18 ft-lbs (25 Nm) at the engine. OEM-verified spec. At the engine, the alternator mounting bolt torques to 30-40 ft-lbs (17mm drive, M10x1.25 thread). For the engine, plan for a 10mm tool on a M6x1.0 stud; final torque is 7-10 ft-lbs (valve cover bolt). Oil drain plug tightens to 25 ft-lbs (34 Nm), takes a 22mm driver, runs on M14x1.5 threads, located at the engine / oil pan. OEM-verified spec.

Drivetrain — 2025 Kia Carnival

Drivetrain and driveline fasteners for the 2025 Kia Carnival — axle, transmission, and differential plugs. At the drivetrain, the transmission mount bolt torques to 55-70 ft-lbs (19mm drive, M12x1.25 thread). For the front axle, plan for a TBD tool on a M24x1.5 stud; final torque is 170-200 ft-lbs (axle nut front). Axle nut rear tightens to 170-200 ft-lbs, takes a TBD driver, runs on M24x1.5 threads, located at the rear axle.

Suspension — 2025 Kia Carnival

Suspension and chassis fastener torque for the 2025 Kia Carnival — strut, control arm, and sway bar values. For the front suspension, plan for a 17mm tool on a M10x1.25 stud; final torque is 25-35 ft-lbs (stabilizer bar link nut front). Rear shock absorber bolt tightens to 65 ft-lbs, takes a 17mm driver, runs on M12x1.75 threads, located at the body mount. The front lower control arm rear bolt uses a 19mm drive on a M12x1.25 thread, torqued to 70-85 ft-lbs at the front suspension. At the front suspension, the front strut top mount nut torques to 30-40 ft-lbs (22mm drive, M14x1.5 thread). For the front suspension, plan for a 19mm tool on a M12x1.25 stud; final torque is 70-85 ft-lbs (front lower control arm front bolt). Rear shock absorber upper nut tightens to 35-45 ft-lbs, takes a 19mm driver, runs on M12x1.25 threads, located at the rear suspension. The rear shock absorber lower bolt uses a 22mm drive on a M14x1.5 thread, torqued to 85-100 ft-lbs at the rear suspension.

Steering — 2025 Kia Carnival

Steering linkage fasteners on the 2025 Kia Carnival. Steering wheel center bolt tightens to 30-38 ft-lbs, takes a 24mm driver, runs on M16x1.5 threads, located at the steering. The tie rod end nut uses a 19mm drive on a M12x1.25 thread, torqued to 25-33 ft-lbs at the steering. At the engine, the power steering pump bolt torques to 22-30 ft-lbs (17mm drive, M10x1.25 thread).

Body — 2025 Kia Carnival

Body fasteners on the 2025 Kia Carnival. The hood hinge bolt uses a 13mm drive on a M8x1.25 thread, torqued to 15-20 ft-lbs at the body / hood.

Brake — 2025 Kia Carnival

Brake fasteners on the 2025 Kia Carnival. At the front brake, the front brake caliper guide pin bolt torques to 20 ft-lbs (27 Nm) (17mm drive, M10x1.25 thread). This figure is independently verified against OEM service data. For the rear brake, plan for a 17mm tool on a M10x1.25 stud; final torque is 20-28 ft-lbs (rear brake caliper guide pin bolt). OEM-verified spec. Rear brake caliper bracket bolt tightens to 50-65 ft-lbs, takes a 19mm driver, runs on M12x1.25 threads, located at the rear brake. The front brake caliper bracket bolt uses a 19mm drive on a M12x1.25 thread, torqued to 95 ft-lbs (129 Nm) at the front brake. This figure is independently verified against OEM service data.

Oil Drain Plug — 2025 Kia Carnival

Oil Drain Plug fasteners on the 2025 Kia Carnival. For the oil pan, plan for a 17mm tool on a M14x1.5 stud; final torque is 25 ft-lbs (34 Nm) (engine oil drain plug). OEM-verified spec.

Lug Nut — 2025 Kia Carnival

Lug Nut fasteners on the 2025 Kia Carnival. Wheel lug nut tightens to 80 ft-lbs (108 Nm), takes a 21mm driver, runs on M12x1.5 threads, located at the wheel.

Wheel — 2025 Kia Carnival

Wheel fasteners on the 2025 Kia Carnival. The wheel lug nuts uses a 19mm drive on a M12x1.5 thread, torqued to 80 ft-lbs (108 Nm) at the wheel.

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 2025 Kia Carnival numbers above.

Loading the interactive 2025 Kia Carnival fastener lookup with per-bolt filtering, part links, and torque tools…