What size is the front axle nut on a Toyota Hilux?
The front axle hub nut size on a Toyota Hilux is not universal; it depends on year, engine, and axle configuration. In many Hilux generations, the nut across the flats is around 32 mm, but other generations and markets use 30 mm, 34 mm, or 36 mm. Always confirm with the factory service manual or a trusted parts diagram for your exact vehicle to avoid damage.
The following overview provides context on how to determine the correct size for your particular Hilux and what to consider during replacement.
Size variations by generation and configuration
Common sizes you may encounter include a mix of 30 mm and 32 mm for most Hilux front hub nuts. Some older generations or certain markets may require larger sizes such as 34 mm or 36 mm depending on the axle and drivetrain configuration. Because exact size depends on the vehicle, verifying the correct specification is essential.
- 30 mm across flats
- 32 mm across flats
- 34 mm across flats
- 36 mm across flats
Note that not every Hilux uses all these sizes; the actual size varies by model year, engine, and drivetrain. Always confirm with official documentation or your parts diagram.
How to confirm the correct nut size for your Hilux
To confirm the correct nut size for your specific Hilux, use these steps:
- Check the owner's manual or the Toyota factory workshop/manual for the hub nut specification for your VIN, model year, and drivetrain.
- Inspect the existing nut: measure across the flats (distance between opposite sides of the hex) using a caliper or ruler, then match to a standard nut size chart. Look for any markings on the nut indicating size or thread pitch.
- Consult official Toyota parts diagrams or the dealer's parts database by entering your VIN or exact model details to locate the correct hub nut size and torque spec (and thread pitch).
- If replacing, bring the old nut to the parts counter to verify size and pitch before purchase and installation.
Having the correct size is essential to avoid damaging the hub, studs, or rotor, and to ensure the locking mechanism (if applicable) functions properly.
What to know about installation and torque
When installing a hub nut, the size is only part of the requirement. Use the exact torque specification from the service manual and any locking methods (cotter pin, locking washer, or nut with lock feature) as required for your Hilux generation. If in doubt, seek a professional mechanic to perform the replacement to avoid wheel detachment or brake issues.
Summary
The front axle hub nut size on a Toyota Hilux is not fixed across all years and markets; typical sizes range from 30 mm to 36 mm across flats, with 32 mm being common in many generations. To be certain, always refer to the official service manual or Toyota parts catalog for your exact vehicle, verified by your VIN. If you’re replacing the nut, ensure you have the correct size and torque specification, and consider professional service if you’re unsure.
