[BOSCH QUALITY] - Bosch "Better than OE" Aftermarket Fuel Pump Assemblies are built and tested to the same rigorous quality standards as our OE fuel pumps to ensure a long, reliable service life [INNOVATIVE TECHNOLOGY] - Patented Turbine Pump technology virtually eliminates the fuel pulsation, noise, and hot-start problems associated with older pump designs [OPTIMAL PERFORMANCE] - Designed to operate in extreme temperatures and under low fuel conditions to ensure reliable performance and an extended service life [FACTORY TESTED] - Every Bosch fuel pump is "end-of-line" function tested before leaving the manufacturing facility to ensure premium quality and performance for maximum customer satisfaction [READY TO INSTALL] - Designed for simple DIY installation - includes instructions and fuel strainer to keep dirt and debris from entering the pump - preventing the main cause of pump failure Compatible with select vehicles (Note: vehicle wheelbase/trim level/engine may affect fitment - verify specific vehicle fitment details with fit checker above): CHEVROLET: 2001 Express 2500, 1998-00 Express 3500, 1999-03 Silverado 1500 Compatible with (continued): CHEVROLET: 2001-03 Silverado 1500 HD, 1999-03 Silverado 2500, 2001-03 Silverado 2500 HD, 2001-03 Silverado 3500; GMC: 1998-01 Savana 3500, 1999-03 Sierra 1500, 2001-03 Sierra 1500 HD, 1999-03 Sierra 2500 Compatible with (continued): GMC: 2001-03 Sierra 2500 HD, 2001-03 Sierra 3500