What size are Subaru lugs?
There isn’t a single lug-nut size that covers every Subaru model. The most common thread sizes you’ll encounter are M12 x 1.25 and M12 x 1.5, but the exact size depends on the year, model, wheel, and trim. Always verify your specific car’s specs before buying or replacing lug nuts.
Subaru vehicles have varied wheel bolt patterns and seating configurations across generations, and some wheels use different seat types or lengths. This article explains typical sizes you might see, how to confirm the exact specification for your car, and what to consider when choosing replacement hardware.
Common lug nut sizes on Subaru models
Before listing the typical sizes, here is a quick overview of what you’re likely to encounter on recent Subarus.
- Thread sizes: M12 x 1.25 or M12 x 1.5 are the two most common. Some regional or older variants may use different specs.
- Seat types: most Subaru wheels use a conical (60-degree) seat, but certain aftermarket wheels or specialty trims may use a ball seat or other configurations.
- Wrench size: the typical torque hardware for Subaru lug nuts is tightened with a 19 mm wrench, though some wheels may require a different tool or a locking lug nut key.
Knowing these common patterns helps you plan replacements or upgrades, but always confirm the exact spec for your vehicle from the owner’s manual or a parts diagram.
Seat types and wrench compatibility
Seat type refers to how the lug nut sits against the wheel. A 60-degree conical seat is the standard on many Subarus, ensuring proper contact and seating with the wheel bore. Ball seats or alternate seat designs are less common but can appear with aftermarket wheels. Always match the seat type to your wheel to avoid improper seating or damage.
How to verify your exact lug size
To ensure you obtain the correct lug nuts for replacement or aftermarket wheels, follow these steps to verify your vehicle’s exact lug size and seating configuration.
- Check the owner’s manual or the sticker on the driver’s door jamb for lug nut size and torque specifications.
- Inspect a current lug nut on the wheel to read the thread size (for example, M12 x 1.25 or M12 x 1.5) and identify the seat type.
- Measure the stud diameter and pitch with a thread-pitch gauge if you’re unsure, or compare with a known sample to confirm.
- Use Subaru’s official parts catalog or consult a dealer with your VIN to obtain the exact lug size for your exact model and wheel setup.
Verifying the precise specification helps ensure proper fit, safe torque, and compatibility with factory studs and wheels. When in doubt, rely on official documentation or a Subaru dealer.
Notes for aftermarket wheels and lug nuts
If you’re upgrading to aftermarket wheels or changing wheel sizes, lug-nut compatibility remains crucial. Subarus generally require lug nuts that match the wheel’s mounting design (thread pitch, seat type) and the vehicle’s torque requirements. When using aftermarket wheels, always buy lug nuts specifically matched to that wheel and vehicle combination, and follow the manufacturer’s torque instructions.
Avoid reusing damaged lug nuts, and recheck torque after the first 50–100 miles of driving to ensure everything remains secure.
Summary
In short, Subaru lug-nut sizes are not universal. The most common thread sizes are M12 x 1.25 and M12 x 1.5, with typical 60-degree conical seats and a 19 mm wrench size, but exact specifications vary by model and year. Always verify with the owner’s manual, VIN-based parts catalog, or your dealer to ensure you have the correct lug nuts for your Subaru’s year, model, and wheels.
Closing note
For readers planning maintenance or upgrades, the safest approach is to confirm the exact lug-nut size for your specific vehicle configuration before purchasing parts. This reduces the risk of improper seating, incorrect torque, or wheel damage.
