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.

Caterpillar · Engine
2812725
In stock · ships from Knoxville
The Caterpillar 2812725 is a fuel check valve used on heavy-duty diesel engines including the 3406E, C15, C16, and C18.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Caterpillar
Caterpillar
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 2 of 2.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It allows fuel to flow in only one direction, preventing backflow to the tank, maintaining fuel system pressure, and avoiding loss of prime or vapor lock. This valve is commonly replaced when an engine becomes hard to start after sitting due to fuel draining back. It is a direct replacement for the original equipment part.
Part Number: 2812725
CAT CHECK VALVE
Dealer: KP Services Crossville
Compatibility, alternatives, and more