Edelbrock Fuel Pump Kit Supercharger 2003-2007 GM 1500 Truck Return Type Fuel SystemEdelbrock part #15773 is a supplemental fuel system containing a replacement fuel pump, fuel level sender and regulator hardware. This upgrade kit is ideal for GM Trucks utilizing the #1577 Edelbrock Supercharger System. This kit will only work with 03 07 models equipped with return style fuel systems. Return style fuel systems will have two fuel lines coming off the fuel rail. Installation Instructions This Part Fits: Year Make Model Submodel 2007