The lug nuts on a 2019 Crosstrek are M12 x 1.25 with a 19 mm hex and a 60-degree conical (tapered) seat. This reflects the standard factory wheel hardware for this model year.
In practice, lug nut sizing covers both the thread specification and the seating type that the wheel sits against. The Crosstrek uses five lug nuts, and the above dimensions apply to the wheels that ship with most trims. If you’re installing aftermarket wheels or lug kits, verify compatibility with the wheel manufacturer and Subaru’s guidance.
Key specifications
Below is a concise listing of the core lug nut specs you’ll typically encounter on a 2019 Crosstrek with factory wheels.
- Thread size and pitch: M12 x 1.25
- Seat type: 60-degree conical (tapered) seat
- Nut hex size: 19 mm
- Application: five-lug setup on 2019 Crosstrek factory wheels
Having the correct nut size and seat is essential for proper seating and wheel security.
What to check when replacing wheels or nuts
When replacing wheels or installing aftermarket lug nuts, use these checks to avoid mismatches or damage.
- Confirm wheel lug seat type and thread size with the wheel manufacturer or Subaru documentation.
- Verify the lug nuts or studs match the M12 x 1.25 thread pitch.
- Ensure the socket size you use matches the nut hex size (typically 19 mm for this model).
If in doubt, consult the owner's manual or a Subaru service professional for exact specifications.
Summary
For a 2019 Subaru Crosstrek, the standard lug nuts are M12 x 1.25 with a 60-degree conical seat, and require a 19 mm socket. This applies to factory wheels across common trims; aftermarket wheels may vary, so always verify compatibility.