The size of a Honda CV axle nut is not universal; it depends on the model and year. In practice, most front-wheel-drive Hondas use a 30 mm or 32 mm nut, but some generations may use 29 mm or larger sizes. Always verify with your vehicle manual or the nut itself.
Common sizes you might encounter
Across Honda models and generations, the axle nut diameters you’ll see most often fall in a few standard sizes. Use this as a quick reference, but confirm on your exact vehicle.
- 29 mm
- 30 mm
- 32 mm
- 36 mm (less common; verify on your model)
Note: The size is measured across the flats of the nut (the portion you clamp with the socket), not the stud or thread diameter. Using the wrong size can round the nut or damage the axle shaft.
How to confirm the exact size for your Honda
To verify the precise axle nut size for your specific model and year, use these steps.
- Check the owner's manual or the factory service manual (manuals often list fastener sizes and torque values).
- Inspect the actual nut on your vehicle and measure the distance across the flats with a caliper or a standard socket; compare to common socket sizes (e.g., 29, 30, 32, 36 mm).
- If you’ve replaced the axle, consult the replacement part’s packaging or the parts diagram from Honda’s official site or a dealership to confirm the correct nut size.
- When in doubt, contact a Honda dealer or a trusted mechanic to confirm the proper size for your specific VIN/year.
Confirming the exact size ensures you use the correct socket and avoid damaging components during removal or installation.
Summary
Honda CV axle nut sizes vary by model and year, with 29 mm, 30 mm, and 32 mm being the most common. Always verify for your specific vehicle through manuals or parts diagrams, or measure the nut directly to choose the correct socket size.