2018 Kia Cadenza Lug Nut Torque & Bolt Specs

The 2018 Kia Cadenza 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 Cadenza. 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 Cadenza

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 Cadenza?

The OEM-specified lug-nut torque for the 2018 Kia Cadenza 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 Cadenza lug nuts?

The 2018 Kia Cadenza 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 Cadenza 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 Cadenza years

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

→ 2018 Kia Cadenza oil drain plug torque & size

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

All 35 2018 Kia Cadenza fastener specs

Per-bolt torque, wrench size, and thread spec for the 2018 Kia Cadenza, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 5 of the 35 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Engine — 2018 Kia Cadenza

Engine bolt-by-bolt torque for the 2018 Kia Cadenza, including the long block, valve covers, and intake. At the oil pan, the oil drain plug torques to 25 ft-lbs (34 Nm) (17mm drive, M14x1.5 thread). For the engine mount, plan for a 17mm tool on a M12 x 1.75 stud; final torque is 47-62 lb-ft (engine mount bolt). Valve cover bolt tightens to 7-9 lb-ft, takes a 10mm driver, runs on M8 x 1.25 threads, located at the valve cover. The exhaust manifold stud uses a 14mm drive on a M10 x 1.5 thread, torqued to 29-33 lb-ft at the exhaust manifold. At the oil drain plug, the oil drain plug washer torques to N/A (N/A drive, N/A thread). For the cylinder head, plan for a 16mm tool on a M14 x 1.25 stud; final torque is 15-22 lb-ft (spark plug). Intake manifold bolt tightens to 14-17 lb-ft, takes a 12mm driver, runs on M8 x 1.25 threads, located at the intake manifold. The oil filter uses a Oil Filter Wrench drive on a 3/4-16 UNF thread, torqued to Hand tight + 3/4 turn at the engine block. Confirmed against manufacturer service literature.

Suspension — 2018 Kia Cadenza

Suspension and chassis fastener torque for the 2018 Kia Cadenza — strut, control arm, and sway bar values. For the shock mount, plan for a 17mm tool on a M12 x 1.75 stud; final torque is 47-58 lb-ft (shock absorber mount bolt). Control arm bolt tightens to 72-87 lb-ft, takes a 18mm driver, runs on M14 x 1.5 threads, located at the control arm. The front upper control arm bolt uses a 17mm drive on a M12 x 1.25 thread, torqued to 72-87 ft-lbs at the control arm to frame. At the sway bar link, the sway bar link nut torques to 72-87 lb-ft (14mm drive, M10 x 1.25 thread). For the shock to knuckle, plan for a 17mm tool on a M12 x 1.25 stud; final torque is 101-116 ft-lbs (shock absorber lower bolt). Ball joint pinch bolt tightens to 80 ft-lbs (108 Nm), takes a 17mm driver, runs on M12 x 1.25 threads, located at the ball joint to knuckle. OEM-verified spec. The front lower control arm bolt uses a 19mm drive on a M14 x 1.5 thread, torqued to 101-116 ft-lbs at the control arm to frame. At the shock tower, the shock absorber upper mount nut torques to 33-43 ft-lbs (17mm drive, M12 x 1.25 thread). For the ball joint, plan for a 17mm tool on a M12 x 1.75 stud; final torque is 80 ft-lbs (108 Nm) (ball joint bolt). OEM-verified spec. Strut tower nut tightens to 33-43 lb-ft, takes a 14mm driver, runs on M10 x 1.5 threads, located at the strut tower.

Wheel — 2018 Kia Cadenza

Wheel fasteners on the 2018 Kia Cadenza. Center cap retaining clip tightens to N/A, takes a N/A driver, runs on N/A threads, located at the wheel center. The wheel stud uses a N/A drive on a M12 x 1.5 thread, torqued to Press fit at the wheel hub. At the wheel hub, the lug nut torques to 80 ft-lbs (108 Nm) (21mm drive, M12x1.5 thread). For the wheel center cap, plan for a N/A tool on a N/A stud; final torque is Hand tight (center cap clip).

Transmission — 2018 Kia Cadenza

Transmission fasteners on the 2018 Kia Cadenza. The transmission pan bolt uses a 10mm drive on a M8 x 1.25 thread, torqued to 7-9 lb-ft at the transmission pan. At the transmission crossmember, the crossmember bolt torques to 65-80 lb-ft (19mm drive, M14 x 1.5 thread). For the crossmember to frame, plan for a 19mm tool on a M14 x 1.5 stud; final torque is 65-80 ft-lbs (transmission crossmember bolt). Transmission mount bolt tightens to 47-62 lb-ft, takes a 17mm driver, runs on M12 x 1.75 threads, located at the transmission mount.

Brake — 2018 Kia Cadenza

Brake fasteners on the 2018 Kia Cadenza. At the rotor to hub, the brake rotor set screw torques to 7-9 ft-lbs (Phillips #2 drive, M6 x 1.0 thread). For the caliper slide pin, plan for a 14mm tool on a M10x1.25 stud; final torque is 16-23 ft-lbs (brake caliper guide pin bolt). This figure is independently verified against OEM service data. Brake hose banjo bolt tightens to 18-22 lb-ft, takes a 12mm driver, runs on M10 x 1.0 threads, located at the brake caliper. The caliper guide pin uses a 13mm drive on a M10x1.25 thread, torqued to 16-23 lb-ft at the brake caliper. Confirmed against manufacturer service literature. At the caliper to bracket, the brake caliper mounting bolt torques to 58-72 ft-lbs (17mm drive, M12x1.25 thread). For the brake caliper bracket, plan for a 17mm tool on a M14x1.5 stud; final torque is 58-72 lb-ft (caliper bracket bolt). Brake rotor screw tightens to 5-7 lb-ft, takes a Phillips #2 driver, runs on M6 x 1.0 threads, located at the brake rotor.

Lug Nut — 2018 Kia Cadenza

Lug Nut fasteners on the 2018 Kia Cadenza. For the wheel, plan for a 21mm tool on a M12x1.5 stud; final torque is 80 ft-lbs (108 Nm) (wheel lug nut).

Oil Drain Plug — 2018 Kia Cadenza

Oil Drain Plug fasteners on the 2018 Kia Cadenza. Engine oil drain plug tightens to 25 ft-lbs (34 Nm), takes a 17mm driver, runs on M14x1.5 threads, located at the oil pan.

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 Cadenza numbers above.

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