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Stemco · Brakes & Wheel End
340-4372
In stock · ships from Knoxville
The Stemco 340-4372 is a hub cap for heavy-duty trailer axles that use grease-packed wheel bearings (no oil tubes).
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It incorporates a PSI (pressure-sensitive indicator) plug that allows for pressurizing and purging the hub with fresh grease while sealing out dirt and moisture. This part is replaced when the original hub cap is cracked, leaking, or missing to prevent wheel bearing failure and costly roadside repairs.
Part Number: 340-4372
HUB CAP, GREASE PSI
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
