CHECK VALVE - FUEL PUMP (Hyundai HN4010077)

A worn check valve in the fuel pump can cause hard starting or stalling after shutdown. This aftermarket replacement part references the Hyundai catalog and carries the part number HN4010077. The check valve's plain mechanical function is to permit fuel flow in one direction only while blocking reverse flow. A generic failure consequence is that a leaking valve allows fuel to drain back to the tank, requiring extended cranking to restart. During a fuel system service, a technician may test the valve for proper sealing. Verify the serial number or application, then call (562) 693-7748. The part is a check valve for the fuel pump assembly.

Part number variants: HN4010077, hn4010077