2004 Hyundai Elantra Lug Nut Torque & Bolt Specs

The 2004 Hyundai Elantra 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 2004 Hyundai Elantra. 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 2004 Hyundai Elantra

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 2004 model-year work: Always use a calibrated torque wrench for safety-critical fasteners, and replace lock washers and crush washers on every 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 2004 Hyundai Elantra?

The OEM-specified lug-nut torque for the 2004 Hyundai Elantra 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 2004 Hyundai Elantra lug nuts?

The 2004 Hyundai Elantra 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 2004 Hyundai Elantra 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 Hyundai Elantra years

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

→ 2004 Hyundai Elantra oil drain plug torque & size

→ 2004 Hyundai Elantra suspension & steering torque specs (control arm, ball joint, tie rod)

All 33 2004 Hyundai Elantra fastener specs

Per-bolt torque, wrench size, and thread spec for the 2004 Hyundai Elantra, 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 33 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data.

Wheels — 2004 Hyundai Elantra

Wheel and lug nut spec for the 2004 Hyundai Elantra. The lug nuts uses a 21mm drive on a M12x1.5 thread, torqued to 80 ft-lbs (108 Nm) at the wheel studs. At the all four wheels, the lug nut torques to 80 ft-lbs (108 Nm) (17mm drive, M12x1.5 thread).

Brakes — 2004 Hyundai Elantra

Brake fasteners on the 2004 Hyundai Elantra — caliper bracket, slide pins, and banjo bolt torque follow. At the rear caliper body to rear caliper bracket (slide/guide pins), the rear caliper slide pin bolts torques to 22-32 Nm (16-24 ft-lb) (14mm drive, M10x1.25 thread). OEM-verified spec. For the caliper body to caliper bracket (slide/guide pins), plan for a 14mm tool on a M10x1.25 stud; final torque is 22-32 Nm (16-24 ft-lb) (front caliper slide pin bolts). Confirmed against manufacturer service literature. Front caliper bracket bolts tightens to 69-85 Nm (51-63 ft-lb), takes a 17mm driver, runs on M12x1.25 threads, located at the front caliper bracket (carrier) to front knuckle. The front brake caliper slide pin uses a 12mm drive on a M10x1.25 thread, torqued to 16-24 ft-lbs at the front caliper slide pin. OEM-verified spec. At the front brake caliper bracket, the front brake caliper bracket bolt torques to 58-72 ft-lbs (17mm drive, M12x1.25 thread). For the rotor face to hub flange (front and rear), plan for a #3 Phillips or JIS screwdriver tool on a M6 x 1.0 (JIS Phillips) stud; final torque is 5-8 Nm (4-6 ft-lb) (rotor retaining screw). Rear caliper bracket bolts tightens to 63-73 Nm (47-54 ft-lb), takes a 14mm driver, runs on M12x1.25 threads, located at the rear caliper bracket (carrier) to rear knuckle/axle carrier.

Engine — 2004 Hyundai Elantra

Engine bolt-by-bolt torque for the 2004 Hyundai Elantra, including the long block, valve covers, and intake. For the cylinder head to block, 2 of 10 bolts are m12 (outboard positions), plan for a 12mm (12-point / triple square) tool on a M12 x 1.25 stud; final torque is 30 Nm (22 ft-lb) + 60-65° + 60-65° (cylinder head bolts - m12). Valve cover bolt tightens to 6-8 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the valve cover. The camshaft sprocket bolt uses a 17mm drive on a M14 x 1.5 thread, torqued to 100-120 Nm (74-89 ft-lb) at the intake and exhaust camshaft sprockets (cvvt unit on intake cam). At the main bearing caps, crankshaft bottom of block, the main bearing cap bolts torques to 27-33 Nm (20-24 ft-lb) + 60-65° (12mm drive, M10 x 1.25 thread). For the front of crankshaft / harmonic balancer, plan for a 22mm tool on a M14 x 1.5 stud; final torque is 160-170 Nm (120-125 ft-lb) (crankshaft pulley bolt). Connecting rod cap nuts tightens to 50-53 Nm (36-39 ft-lb), takes a 14mm driver, runs on M9 x 1.0 threads, located at the connecting rod caps, lower end of connecting rods. The timing belt tensioner bolt uses a 14mm drive on a M10 x 1.25 thread, torqued to 43-55 Nm (32-40 ft-lb) at the timing belt tensioner bracket, front of engine. At the bottom of oil pan, the oil drain plug torques to 25 ft-lbs (34 Nm) (17mm drive, M14x1.5 thread). For the cylinder head, one per cylinder, plan for a 16mm spark plug socket tool on a M12 x 1.25 stud; final torque is 20-30 Nm (15-22 ft-lb) (spark plugs). Oil pan bolts tightens to 10-12 Nm (7-9 ft-lb), takes a 10mm driver, runs on M8 x 1.25 threads, located at the oil pan to cylinder block. The spark plug uses a 5/8" drive on a M14x1.25 thread, torqued to 15-22 ft-lbs at the cylinder head. At the cylinder head to block, 8 of 10 bolts are m10, the cylinder head bolts - m10 torques to 25 Nm (18 ft-lb) + 60-65° + 60-65° (12mm (12-point / triple square) drive, M10 x 1.25 thread). For the cylinder head cover / valve cover, plan for a 10mm tool on a M6 x 1.0 stud; final torque is 8-10 Nm (6-7 ft-lb) (valve cover bolts). Exhaust manifold nuts tightens to 43-55 Nm (32-40 ft-lb), takes a 12mm driver, runs on M8 x 1.25 threads, located at the exhaust manifold studs at cylinder head. The intake manifold bolts/nuts uses a 12mm drive on a M8 x 1.25 thread, torqued to 16-23 Nm (12-17 ft-lb) at the intake manifold to cylinder head.

Suspension — 2004 Hyundai Elantra

Suspension and chassis fastener torque for the 2004 Hyundai Elantra — strut, control arm, and sway bar values. Front lower control arm bolts tightens to 60-80 Nm (43-58 ft-lb) front bushing; subframe to body per standard, takes a 17-19mm driver, runs on M14 x 1.5 threads, located at the front lower control arm bushings to subframe and to knuckle ball joint. The front strut to knuckle bolts uses a 17mm bolt / 19mm nut drive on a M14 x 1.5 thread, torqued to 110-130 Nm (80-94 ft-lb) at the front strut assembly lower bracket to steering knuckle (pinch bolts). At the sway bar end link to front strut assembly, the sway bar end link nut torques to 60-80 Nm (43-58 ft-lb) (17mm (with 6mm hex hold on stud) drive, M12 x 1.25 thread). For the rear hub bearing flange nut, plan for a 32mm tool on a M24 x 1.5 stud; final torque is 200-260 Nm (148-192 ft-lb) (rear hub / axle nut). Front strut top nut tightens to 40-50 Nm (29-36 ft-lb), takes a 17mm (nut) with internal hex hold driver, runs on M14 x 1.5 threads, located at the top of front strut shaft, strut tower. The front hub/bearing nut uses a 32mm drive on a M24x1.5 thread, torqued to 148-192 ft-lbs at the front wheel hub/axle. At the rear shock absorber lower mounting to torsion beam axle, the rear shock lower bolt torques to 60-80 Nm (43-58 ft-lb) (17mm drive, M12 x 1.25 thread). For the front axle/driveshaft nut at front hub, plan for a 32mm tool on a M24 x 1.5 stud; final torque is 200-260 Nm (148-192 ft-lb) (front hub / axle nut). Tie rod end nut tightens to 15-34 Nm (11-25 ft-lb) with cotter pin, takes a 17mm driver, runs on M12 x 1.25 threads, located at the tie rod end to steering knuckle.

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 2004 Hyundai Elantra numbers above.

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