ECCPP Electric Fuel Pump Module Assembly w/Sending Unit Replacement for Chevrolet GMC C1500 C2500 K1500 K2500 1998 1999 V8 5.7L 7.4L E3967M COMPATIBILTY - ECCPP Electric Fuel Pump for 1998-1999 Chevrolet C1500 for V8 5.7L;1998-1999 GMC C2500 for V8 7.4L FUNCTIONS - Suck the fuel from the fuel tank, pressurize it and then deliver it to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure. Guaranteed supply of continuous fuel to the injector DISCLAIMER - ECCPP Fuel Pump Assembly DOES NOT come with pressure sensor, the original black pressure sensor on the top of the assembly must be reused at time of installation BENIFITS - ECCPP Fuel Pumps are low noise pump, better driving comfort, balancing cost and reliability to meet different needs IMPORTANT NOTE - Please make sure to match the exact part numbers between this part and the part that you are replacing. Contact your mechanics, or send us a message to make sure it matches exactly in case of doubt before purchasing