Electric Fuel Pump E3560M for 2002-2004 CHEVROLET SUBURBAN 1500 V8 5.3L and GMC YUKON XL 1500 V8 5.3L FLEX FUEL MODEL ONLY-the 8th digit of VIN is Z Packaged in Airclin colored box Every single pump is 100% tested in all standards before shipping out of the factory Best materials are used for longer life and durability Designed and manufactured by state of art technology for optimum fuel flow One year warranty in material and workmanship