2025 Ford Bronco Lug Nut Torque & Bolt Specs

The 2025 Ford Bronco lug nut torque is 100 ft-lbs (135 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: 100 ft-lbs (135 Nm) · Socket size: 21mm · Thread: M12x1.5.

This page is the OEM-referenced fastener summary for the 2025 Ford Bronco. 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.

Ford lug-nut torque varies more by chassis than most makes — 100 ft-lbs for Focus/Fusion/Fiesta, 150 ft-lbs for half-ton F-150, and 165 ft-lbs for Super Duty F-250/F-350. F-150s from 2004-2014 use a 21mm OEM socket, while 2015+ aluminum-body trucks moved to the larger 22mm. Ford torque-to-yield (TTY) head bolts are standard from the early 2000s — do not reuse them, ever.

Common fastener categories on the 2025 Ford Bronco

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 Ford Bronco?

The OEM-specified lug-nut torque for the 2025 Ford Bronco is 100 ft-lbs (135 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 Ford Bronco lug nuts?

The 2025 Ford Bronco 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 Ford Bronco 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 Ford Bronco years

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

→ 2025 Ford Bronco oil drain plug torque & size

All 6 2025 Ford Bronco fastener specs

Per-bolt torque, wrench size, and thread spec for the 2025 Ford Bronco, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both.

Brakes — 2025 Ford Bronco

Brake fasteners on the 2025 Ford Bronco — caliper bracket, slide pins, and banjo bolt torque follow. The front caliper slide pin uses a 13mm drive on a M10x1.5 thread, torqued to 30 ft-lbs (41 Nm) at the front caliper. At the rear axle, the rear caliper bracket bolt torques to 95 ft-lbs (129 Nm) (18mm drive, M12x1.5 thread). For the front axle, plan for a 21mm tool on a M14x2.0 stud; final torque is 148 ft-lbs (200 Nm) (front caliper bracket bolt).

Engine — 2025 Ford Bronco

Engine bolt-by-bolt torque for the 2025 Ford Bronco, including the long block, valve covers, and intake. At the oil pan, the oil drain plug torques to 25 ft-lbs (34 Nm) (15mm drive, M12x1.75 thread).

Transmission — 2025 Ford Bronco

Transmission fasteners on the 2025 Ford Bronco. For the transfer case, plan for a 13mm tool on a M16x1.5 stud; final torque is 14 ft-lbs (19 Nm) (transfer case drain plug).

Wheels & Tires — 2025 Ford Bronco

Wheels & Tires fasteners on the 2025 Ford Bronco. Lug nut tightens to 100 ft-lbs (135 Nm), takes a 21mm driver, runs on M12x1.5 threads, located at the all corners.

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 Ford Bronco numbers above.

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