TOPSCOPE FP3563M - Fuel Pump Module Assembly E3563M fits 2002 2003 CHEVROLET S10 4.3L - V6, GMC SONOMA 4.3L - V6 1-YEAR / 365-DAY UNLIMITED MILEAGE WARRANTY PLEASE CHECK THE YEAR/MAKE/MODEL DROP DOWN MENU AT THE TOP OR PRODUCT DESCRIPTION OF THE PAGE TO MAKE SURE THIS PART FITS YOUR VEHICL IF YOU HAVE ANY QUESTIONS ABOUT OUR PRODUCTS, PLEASE MESSAGE US BEFORE YOUR PURCHASING. WE WILL ANSWER YOU WITHIN 24 HOURS Do not reuse any old parts.Eg.Fuel Strainer,Fuel Pressure Sensor. Every single pump is 100% tested before shipping out CHEVROLET S10 03-02 V6-4.3L Extended Cab Pickup GMC SONOMA 03-02 V6-4.3L Extended Cab Pickup Always keep enough fuel in the tank for the pump to be submerged in gas; Fuel comes through filter to the Tubine Impeller. So if the fuel contains too much impurities, it can block the filter and damage the Tubine Impeller. So please replace the Filter on a regular basis and always use high quality gasoline.