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

281-2725

CHECK VALVE

This is a Caterpillar 7/8-inch check valve used in fuel injection lines on diesel engines. 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.