What size are the lug nuts on a Subaru Ascent?
The lug nuts on a Subaru Ascent are typically M12 x 1.25, with a conical (60-degree) seating, and they’re installed or removed with a 19 mm wrench or socket.
While this is the common OEM specification, wheel choices—especially aftermarket wheels—or variations by model year and trim can alter the exact requirements. Always verify the exact lug nut size for your specific vehicle using the owner’s manual, the wheel manufacturer’s guidance, or by checking with a Subaru dealer.
Standard lug nut specifications
The following specs cover the typical OEM setup for the Ascent’s factory wheels. If you have aftermarket wheels, confirm compatibility with the vendor.
- Thread size and pitch: M12 x 1.25 (12 mm diameter, 1.25 mm thread pitch).
- Seat type: conical (60-degree) seating to match the wheel seating surface.
- Wrench/socket size: 19 mm for installation and removal.
- Number of lug nuts per wheel: five (5-lug configuration).
Conclusion: For most Ascent models with stock wheels, these specifications apply. If you’ve fitted aftermarket wheels, verify the lug nut size and seat type to ensure proper seating and safety.
How to verify for your specific vehicle
Practical verification steps
Consult the owner’s manual or Subaru service literature for your year and trim. If you’re buying replacement lug nuts or changing wheels, use the exact size and seat type recommended by Subaru or the wheel manufacturer. When in doubt, contact a Subaru dealer or a qualified mechanic to confirm.
Summary
In short, the Subaru Ascent generally uses M12 x 1.25 lug nuts with a conical seat and a 19 mm wrench. This covers most factory setups; always verify if you’re using aftermarket wheels or different trims to ensure proper fit and safety.
