Parts for your 2017 Subaru Legacy-Wheel studs nuts

2017 Subaru Legacy wheel studs and nuts

Based on Subaru technical literature—the 2017 Legacy Owner’s Manual and the factory Service Manual for 2015–2019 Legacy/Outback—the vehicle uses five pressed-in wheel studs with matching wheel nuts (M12 x 1.25 thread) on a 5x114.3 PCD hub. The manuals specify tightening the wheel nuts to 120 N·m on clean, dry threads. That confirms wheel studs and nuts are absolutely relevant to the 2017 Subaru Legacy.

On this model, the studs are press-fitted into the hub and the nuts clamp the wheel and brake rotor firmly to the hub face. The clamping force is what keeps the wheel secure, maintains brake rotor alignment, and helps the car track straight without vibration. It’s a simple, robust setup that makes wheel changes quick—ideal for rotations, seasonal tyres, or puncture repairs.

For servicing, the smart move is to keep threads clean and dry, align the wheel, then snug the nuts by hand before tightening in a star pattern with a calibrated torque wrench to 120 N·m. Avoid lubricants or anti-seize on the threads or seats unless the Subaru manual for a specific situation states otherwise, lubrication alters friction and can lead to over‑clamping. After any wheel off/on—tyre rotation, brake work, or puncture—recheck torque after 50–100 km.

• Inspect at each service: look for rusty, stretched, or cross‑threaded studs, deformed or cracked nuts, and damaged 60‑degree cone seats.
• Replace a stud if threads are stripped, the stud has been over‑torqued, or it’s snapped. A technician will press the old stud out and pull a new OEM‑spec stud in, hub removal may be needed if clearance is tight.
• Use correct Subaru‑style conical nuts (often 19 mm hex) that match the wheel seat. Mismatched seats can loosen and damage wheels.

For Aussie coastal cars, periodic cleaning helps prevent corrosion, for Kiwi vehicles that see alpine roads, salt exposure means closer inspection intervals. If multiple studs show damage or there’s recurring loosening, check hub face flatness, wheel fitment, and the torque wrench’s calibration. With the right parts and correct torque, the Legacy’s stud-and-nut system is reliable, quiet, and safe over the long haul.

Popular questions

What’s the correct wheel nut torque for a 2017 Subaru Legacy?
Subaru specifies 120 N·m on clean, dry threads. Tighten in a star pattern and recheck after 50–100 km whenever wheels have been removed or rotated.

What size are the wheel studs and nuts?
The studs are M12 x 1.25 thread on a 5x114.3 PCD hub, with wheel nuts using a 60‑degree conical seat. Most factory nuts use a 19 mm hex, though some aftermarket nuts differ.

When should studs or nuts be replaced?
They should be replaced if threads are damaged, the seat is deformed, there’s visible corrosion or stretching, or any stud has snapped. Inspect at every tyre rotation or brake service.