2015 Kia Soul Lug Nut Torque & Bolt Specs

The 2015 Kia Soul 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 Soul. 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 Soul

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 Soul?

The OEM-specified lug-nut torque for the 2015 Kia Soul 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 Soul lug nuts?

The 2015 Kia Soul 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 Soul 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 Soul years

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

→ 2015 Kia Soul oil drain plug torque & size

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

All 15 2015 Kia Soul fastener specs

Per-bolt torque, wrench size, and thread spec for the 2015 Kia Soul, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 1 of the 15 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Wheels — 2015 Kia Soul

Wheel and lug nut spec for the 2015 Kia Soul. Lug nut tightens to 87 ft-lbs, takes a 21mm driver, runs on M12x1.5 threads, located at the wheel hub.

Brakes — 2015 Kia Soul

Brake fasteners on the 2015 Kia Soul — caliper bracket, slide pins, and banjo bolt torque follow. The front bracket uses a 17mm drive on a M14x1.5 thread, torqued to 87 ft-lbs at the caliper bracket. At the caliper slide, the rear slide torques to 16 ft-lbs (12mm drive, M8x1.25 thread). For the caliper slide, plan for a 14mm tool on a M10x1.25 stud; final torque is 25 ft-lbs (front slide). Rear bracket tightens to 67 ft-lbs, takes a 14mm driver, runs on M12x1.25 threads, located at the caliper bracket.

Engine — 2015 Kia Soul

Engine bolt-by-bolt torque for the 2015 Kia Soul, including the long block, valve covers, and intake. At the intake manifold, the intake torques to 15 ft-lbs (12mm drive, M8x1.25 thread). For the oil pan, plan for the right driver on a M14x1.5 stud; final torque is 25 ft-lbs (34 Nm) (oil drain plug). This figure is independently verified against OEM service data. Cylinder head tightens to 22 ft-lbs + 90 + 90 deg, takes a 12mm driver, runs on M10x1.25 threads, located at the cylinder head. The oil pan uses a 17mm drive on a M14x1.5 thread, torqued to 25 ft-lbs at the oil pan. At the valve cover, the valve cover torques to 7 ft-lbs (10mm drive, M6x1.0 thread).

Suspension — 2015 Kia Soul

Suspension and chassis fastener torque for the 2015 Kia Soul — strut, control arm, and sway bar values. For the ball joint, plan for a 17mm tool on a M12x1.5 stud; final torque is 44 ft-lbs (ball joint). Sway bar tightens to 37 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the sway bar link. The strut uses a 17mm drive on a M12x1.5 thread, torqued to 40 ft-lbs at the strut top mount. At the control arm, the control arm torques to 55 ft-lbs (17mm drive, M12x1.5 thread).

Transmission — 2015 Kia Soul

Transmission fasteners on the 2015 Kia Soul. Trans mount tightens to 40 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the transmission mount.

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 Soul numbers above.

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