Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Post Onsite · Brakes & Wheel End
343-4372
In stock · ships from Knoxville
The Stemco 343-4372 is a PSI (Pressure Systems International) hub cap for oil-lubricated wheel ends, featuring a long tube center.
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 is designed to work with the PSI tire inflation system, protecting wheel bearings and allowing visual oil level checks via a side fill plug and a window with oil fill lines [stemco.com](https://www.stemco.com/product/wheel-end/hub-caps/psi-hub-caps/). You would replace this hub cap when it's damaged, leaking, or during routine wheel end maintenance to prevent contamination and ensure proper lubrication. Seller listings indicate it fits a wide range of heavy-duty trucks, but specific vehicle fitment is not verified by the manufacturer [woffordtruckparts.com](https://www.woffordtruckparts.com/products/brakes-wheel-end/hub-caps/stemco-genuine-oem-343-4372-hub-cap-w/pipe-plug/343-4372). This hub cap is an OEM-quality part from Stemco, a well-known brand in wheel end components.
Part Number: 343-4372
HUBCAP PSI
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
