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DDE 23516993

FUEL CHECK VALVE

This is a Detroit Diesel OEM 3/8-inch NPTF female fuel check valve. It installs in the fuel system of specific Detroit engines to prevent fuel from draining back toward the tank, which helps maintain prime and ensures reliable starting. A faulty check valve can cause hard starting, rough idle, or pressure loss, making replacement necessary. The valve is rated for high pressure and wide temperature operation, commonly used on Series 50 and Series 60 engine applications.