Parts for your 2001 Subaru Forester-Wheel studs nuts

2001 Subaru Forester wheel studs and nuts

Based on Subaru technical literature — including the 2001 Forester Factory Service Manual, the Subaru genuine parts catalogue (FAST), and the Owner’s Manual — the 2001 Subaru Forester is fitted with wheel studs and separate wheel nuts (not wheel bolts). The vehicle uses a 5x100 PCD hub with M12 x 1.25 threaded studs and matching conical-seat nuts. That setup is standard across this generation, and service data specifies tightening the nuts to the factory torque listed in the Owner’s Manual, typically around 100–120 Nm for this model.

Wheel studs and nuts do an unglamorous but crucial job: they clamp the wheel evenly to the hub so the tyre tracks straight, the brakes work properly, and the bearings live a long, happy life. The studs stay in the hub, the nuts come off when rotating tyres or doing brake work. Subaru’s fine 1.25 mm thread helps resist loosening and gives precise clamping, but it does mean cross-threading will damage things quickly if a nut is started crooked.

As part of regular servicing on a 2001 Forester, it’s smart to give the wheel studs and nuts a quick once-over whenever the wheels are off. Clean the threads with a soft brush, make sure there’s no rust scale, and avoid grease or anti-seize on the threads or the nut seat — these systems are designed to be torqued dry. If you live coastal or drive on salted roads, a tiny smear of anti-seize on the hub’s centre spigot (not the stud threads) helps prevent the wheel sticking to the hub next time.

When refitting wheels, start all nuts by hand, then snug them in a star pattern to seat the wheel. Finish with a torque wrench set to the factory spec and recheck after 50–100 kilometres. Rattle guns are fine for removal, but final tightening should always be by torque wrench. Any nut with a deformed seat or a rounded hex should be replaced, and any stud that’s stretched, stripped, or has rolled threads needs swapping out.

• Replace a damaged stud by removing the brake caliper and rotor, pressing or drawing the old stud out, and pulling in a new OEM-quality stud squarely against the hub flange.
• If multiple studs are questionable, replace them as a set on that hub to keep clamping consistent.
• Use only 60° conical-seat nuts matched to M12 x 1.25 threads, mixing seat types or thread pitches can lead to wheel wobble or loss of clamping.

Popular questions about 2001 Subaru Forester wheel studs and nuts

What size and thread are the wheel nuts on a 2001 Subaru Forester?

The 2001 Forester uses M12 x 1.25 thread wheel studs, and the matching nuts have a 60° conical seat. Most factory nuts take a 19 mm hex. Always confirm seat type and thread before buying replacements to avoid cross-threading or poor seating.

What torque should the wheel nuts be tightened to?

Use the torque specified in the Owner’s Manual for the exact trim, typically around 100–120 Nm. Tighten in a star pattern on a clean, dry thread and recheck torque after 50–100 km of driving to ensure the clamping has settled evenly.

How can someone tell if a stud needs replacing?

Look for rolled or flattened threads, obvious stretching, rust pitting near the root of the threads, or a stud that won’t hold torque. If a nut binds partway on by hand, the stud or nut is likely damaged. Replace any suspect stud promptly to protect the hub, brake rotor, and wheel.