Image is for illustration purposes only. Actual part may vary.

340-4307

HUB CAP, GREASE

This is a grease hub cap for heavy-duty trailer wheel ends. It covers the hub opening to retain grease lubrication for the wheel bearings and prevent dirt, water, and debris from entering. You would replace it if the original cap is cracked, dented, missing, or if the seal is leaking grease. It is a basic component of the wheel end assembly on grease-packed axles.