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Caterpillar (CAT) · Engine
281-2725
In stock · ships from Knoxville
This is a Caterpillar 7/8-inch check valve used in fuel injection lines on diesel engines.
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's a one-way valve that allows fuel to flow toward the engine while preventing backflow, which helps maintain proper fuel pressure and prevents hard starting or rough running. You'd typically replace this if the original valve is stuck open or closed, or if you're troubleshooting fuel system priming issues. It's a genuine CAT part commonly stocked for heavy-duty truck and equipment fuel system repairs.
Part Number: 281-2725
CHECK VALVE
Dealer: KP Services Crossville
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