Bosch 0928400651 Fuel Metering Unit Assembly

The Bosch 0928400651 is a Generation 3 Fuel Metering Unit (ZME3) designed for Common Rail CP1H3 radial piston high-pressure pumps. It functions as an Inlet Metering Valve (IMV) or Fuel Pressure Control Valve (DRV) on the low-pressure side of the pump, regulating fuel flow volume to maintain target rail pressure. Technical construction features a fuel-cooled solenoid actuator with integrated filter screen and pressure regulation valve. The unit mounts directly to the high-pressure pump housing. It is engineered for 12V vehicle electrical systems and operates within a fuel temperature range of -40°C to +120°C. Primary OEM cross-references include Fiat 71754572, General Motors/Opel/Vauxhall 8029436E (9436, 89582, 3582802), and Bosch substitute number 1465ZS0003. Compatible pump assemblies include 0445010097, 0445010122, 0445010128, 0445010130, and 0445010250. This component is critical for precise fuel quantity control, cold start performance, and emissions compliance in Euro 4/5 diesel applications.