Parts for your 2004 Subaru Forester-Wheel studs nuts

2004 Subaru Forester wheel studs and nuts — what they do and how to look after them

Yes, the 2004 Subaru Forester (SG) uses wheel studs and separate wheel nuts. Subaru’s own technical literature — including the 2004 Forester Owner’s Manual (Wheels and Tyres), the Subaru Service Manual (Chassis/Hub & Brake sections), and the Subaru parts catalogue — specifies five M12 x 1.25 wheel studs per hub with tapered-seat nuts, tightened to 120 N·m (about 88.5 ft·lb). So “wheel studs and nuts” are absolutely relevant to this model.

On this Forester, the wheel studs are pressed into the hub and the nuts clamp the wheel securely to the hub face. That clamping force is what keeps the wheel centred, the brake rotor located, and the driving/braking loads safely transmitted. It’s simple, tough, and easy to service — classic Subaru.

As part of normal servicing or whenever tyres are rotated, it’s smart to give the studs and nuts a once-over. Threads should be clean and dry, Subaru’s guidance is to avoid oils or anti-seize on the threads because lubrication alters clamping force and can over-stress studs. Tighten the five nuts in a star pattern to 120 N·m, and recheck after 50–100 km if the wheel has been off the car. If a nut runs rough, looks rusty inside, or the seating cone is chewed up, replace it. Likewise, replace any stud that’s cross-threaded, stretched, has damaged splines, or shows corrosion pitting.

Replacing a stud on the Forester is a straightforward workshop job. The brake caliper and disc/rotor come off, then the damaged stud is pressed out from the rear of the hub and a new one is pulled in squarely by hand tools or pressed in using the correct support. On the rear, remember the handbrake drum is inside the rotor hat, so the rotor needs to come off cleanly, don’t bash it against the studs. Avoid “drawing” a new stud in with an impact gun — it can gall the threads or skew the knurl. Use the correct M12 x 1.25 nuts with the right seat for the wheel (most OE Forester SG alloys and steels use a 60° taper/bulge seat). Finish with a torque wrench on clean, dry threads, and it’ll be sweet as.

• Torque: 120 N·m, tighten in a star pattern.
• Thread: M12 x 1.25, 5 studs per wheel, 5x100 PCD.
• No lubricants on threads, clean and dry only.
• Re-torque after 50–100 km post wheel removal.

Popular questions about 2004 Subaru Forester wheel studs and nuts

What’s the correct wheel nut torque on a 2004 Forester?
Subaru specifies 120 N·m (about 88.5 ft·lb) on clean, dry threads. Use a star pattern and finish with a torque wrench on the ground. If the wheel’s just been off, recheck torque after 50–100 km to make sure everything’s settled and clamped properly.

What thread size and seat type does it use?
The 2004 Forester uses M12 x 1.25 threads. Most OEM Forester SG wheels need a 60-degree tapered (bulge) seat nut with a 19 mm hex. Always match the seat style to the wheel design — aftermarket wheels sometimes specify a different seat profile.

Do Subarus use wheel bolts instead of studs?
Not on this model. The 2004 Forester uses pressed-in studs with separate nuts. Wheel bolts aren’t used and shouldn’t be substituted, stick with the correct studs and nuts for safe clamping and proper wheel location.