Parts for your 2009 Subaru Tribeca-Wheel studs nuts

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

Technical sources confirm the 2009 Subaru Tribeca is fitted with wheel studs and nuts. The Subaru Factory Service Manual for this model (Wheels and Tyres section) specifies five M12 x 1.25 studs per hub with conical-seat nuts tightened to 120 N·m. Subaru’s electronic parts catalogue also lists front and rear wheel hub studs and matching nuts as serviceable parts for the 2009 Tribeca, reinforcing that this vehicle uses a stud-and-nut system rather than wheel bolts.

On the Tribeca, wheel studs and nuts clamp each wheel securely to the hub, delivering the clamping force that keeps the wheel centred and stable under braking, cornering, and with a loaded family on board. They’re simple, tough, and easy to service—ideal for regular tyre rotations and brake work without fuss.

Good practice during servicing keeps them reliable for the long haul:

• Torque matters: tighten the nuts to 120 N·m using a proper star pattern. If an impact gun is used, always finish by checking with a torque wrench.
• Clean, dry threads: brush off debris and light corrosion, avoid oils, grease, or anti-seize on the threads, as lubrication can over-stretch studs and skew torque readings.
• Re-check after a drive: after wheel removal/refit, re-torque after 50–100 km.
• Use the right hardware: M12 x 1.25 thread, 60° taper nuts that match the wheel seats. Mixing seat styles can damage wheels and reduce clamping force.

Signs it’s time to replace hardware include nuts that won’t hold torque, visibly stretched or cross‑threaded studs, rusty or pitted threads (common on coastal cars), or any wheel that develops a wobble or clunk after recent wheel work. If a nut goes on tight or gritty, stop—forcing it can gall the threads.

Stud replacement on a Tribeca is straightforward: the damaged stud is pressed or driven out of the hub flange and a new stud is pulled in square using a stack of thick washers and a sacrificial nut (or a press). If a stud’s knurl spins in the hub, inspect the hub for wear and replace if needed. When fitting aftermarket wheels, towing regularly, or using spacers, consider upgrading to high-quality studs and always stick to the correct torque. Replacing scuffed or flaking nuts in a full set keeps torque consistent and prevents future dramas at the roadside.

Popular questions

What’s the correct wheel nut torque for a 2009 Subaru Tribeca?
Subaru specifies 120 N·m for the Tribeca’s wheel nuts. Tighten in a star pattern and re-check after 50–100 km of driving to make sure everything has settled evenly.

What thread size are the Tribeca’s wheel studs?
The 2009 Tribeca uses M12 x 1.25 studs with 60° conical-seat nuts. Always match the thread pitch and seat style to avoid cross‑threading and poor clamping.

Can anti-seize be used on Subaru wheel studs?
It’s not recommended. Lubricants alter friction and can lead to over‑tightening at the same torque setting. Keep threads clean and dry, torque to 120 N·m, and you’re sorted.