Parts for your 2009 Subaru Exiga-Wheel studs nuts

2009 Subaru Exiga wheel studs and nuts — what they do and how to look after them

Based on Subaru’s Exiga (YA) service information and the Subaru Electronic Parts Catalogue, the 2009 Subaru Exiga uses five M12×1.25 press‑in wheel studs per hub, secured with taper‑seat wheel nuts on a 5×100 PCD hub. So wheel studs and nuts are absolutely relevant to this model, not wheel bolts.

On the Exiga, the wheel studs and nuts clamp the wheel firmly to the hub and brake rotor, keeping everything true at speed and under braking. The fine‑pitch M12×1.25 threads help resist loosening, while the 60‑degree conical nut seats centre most OEM alloy wheels. It’s a simple, tough setup that suits Aussie and Kiwi roads and the Exiga’s family‑haul duties.

Servicing is straightforward. Torque the nuts evenly in a star pattern to about 120 Nm (check the vehicle label or service data for confirmation). Start every nut by hand to avoid cross‑threading, then finish with a torque wrench — not a rattle gun. Re‑check torque after 50–100 kilometres any time the wheels have been off. Keep threads clean and dry, factory torque specs assume dry threads, so skip anti‑seize unless Subaru specifies otherwise.

Inspection is key. Look for stretched or mushroomed stud tips, rusty or rolled threads, and nuts with damaged cones or cracked chrome caps. If a nut doesn’t run smoothly by hand, replace it. If a stud is bent, stripped, or spins in the hub, it’s time for a new one. The Exiga’s studs are press‑in types, so replacement usually means removing the brake caliper and rotor to press a new stud into the hub flange.

Using the correct hardware matters. The Exiga typically uses 60‑degree conical‑seat nuts (19 mm hex) with sufficient thread engagement — aim for at least 7 full turns. Aftermarket wheels may need different seat styles, always match the nut seat to the wheel seat to avoid fretting and loosening. If fitting spacers or wheels with thicker pads, ensure the studs are long enough for safe engagement.

• Do: torque to spec, re‑check after short running, and replace damaged hardware promptly.
• Don’t: lubricate threads, mix seat styles, or hammer home nuts with an impact gun.

Treat the Exiga’s wheel studs and nuts with a bit of care and they’ll deliver reliable clamping force, quiet brakes, and even tyre wear for the long haul.

Popular questions about 2009 Subaru Exiga wheel studs and nuts

What’s the correct torque for the Exiga’s wheel nuts?

Most 2009 Subaru models, including the Exiga, specify around 120 Nm for wheel nuts. Always tighten in a star pattern, then re‑check torque after 50–100 kilometres of driving. Confirm the exact figure for your trim via the owner’s manual or service data sticker.

What thread size and seat type does it use?

The Exiga uses M12×1.25 studs with 60‑degree conical (taper) seat nuts on OEM alloys. If running aftermarket wheels, verify the seat style — conical vs mag/flat — and match the nuts accordingly to ensure proper clamping.

When should wheel studs or nuts be replaced?

Replace them whenever threads are damaged, a stud is bent or stretched, a nut’s cone is chewed up, or torque won’t hold. It’s smart to fit new nuts if the chrome caps deform or if corrosion is evident. Always address any spinning stud immediately.