What size are the wheel nuts on a Acura RDX?
The standard lug nuts on most Acura RDX models use M12 x 1.5 threading and typically require a 19 mm wrench to install or remove.
This refers to OEM wheels, and the exact hardware can vary if you have aftermarket wheels or a different trim year. The RDX generally uses a 5-lug pattern and a 114.3 mm bolt circle, but always verify against your specific year and wheel type by checking the owner's manual or contacting a dealer.
Standard lug-nut specs for the Acura RDX
Use this as a quick reference for typical hardware found on many RDX models.
- Thread pitch: M12 x 1.5
- Hex size (socket size to loosen/tighten): 19 mm
- Bolt pattern: 5 lug on 114.3 mm (5 × 114.3 mm)
These specs cover the common OEM configuration. If your wheels are aftermarket or from a different trim/year, sizes may differ. Always confirm with official documentation or a dealer if you are unsure.
How to verify the exact lug-nut size on your vehicle
Before performing maintenance or purchasing sockets, confirm the precise size for your specific car and wheel setup.
- Consult the owner's manual or the tire/wheel information label usually located on the driver's door jamb or inside the glove box for lug nut size and bolt pattern.
- Inspect the lug nuts currently installed and measure the hex across the flats with a socket or caliper; OEM nuts typically require a 19 mm socket.
- If you have aftermarket wheels, check the wheel manufacturer’s specifications or ask the tire shop to ensure you use the correct lug nuts and seating.
- When in doubt, contact an Acura dealer or a qualified tire shop and provide your VIN, year, and trim to get the exact hardware specification.
Verifying the correct lug-nut size helps ensure proper seating and torque, preventing damage to wheels or studs.
Summary: For most Acura RDX models, lug nuts are M12 x 1.5 with a 19 mm socket requirement, on a 5×114.3 mm bolt pattern. Always confirm for your exact year, trim, and wheel configuration—especially if aftermarket wheels are involved.
