Fuel injection pump 9520A381G Delphi DP, genuine

Fuel injection pump 9520A381G is a genuine JCB part for the diesel engines with Delphi DP210, DP310 and DP200 pumps.

The fuel injection pump is the heart of a diesel engine: it raises the fuel to the high pressure the engine needs and delivers it to the injectors in the right quantity at the right moment. A mechanical distributor pump feeds the cylinders in turn and sets the injection timing itself, while in common rail systems the pump pressurises the shared rail and the engine control unit manages injection. Signs of pump failure are hard starting or no start, loss of power, uneven idle, black smoke and the engine bogging under load. The precision parts inside the pump are lubricated by the fuel, so water and dirt in the fuel are the pump's worst enemies. The pump's life is directly linked to fuel cleanliness. The label on the pump is kept, as it is used to confirm the part number.

Specifications

Compatibility

According to the product card, 9520A381G is a fuel injection pump. The card also lists 9520A380G. Fit is confirmed by the part number. Other parts are in Fuel injection pumps.

Fitting

Before removing the pump, turn the engine until the timing marks line up and mark the position of the pump gear. Cap the fuel line ends at once. Fit the new pump in the timed position following the engine maker's instructions and tighten the connections with new seals to the specified torque. Then bleed the fuel system, without cranking for long on the first start. Once the engine runs, check for fuel leaks, idle, smoke and power, and read the fault codes on electronic systems. In the first hours, keep an eye on fuel consumption and exhaust smoke.