This fuel injector sleeve is a direct replacement for an original equipment part. Made of quality materials, this part has undergone try-on testing to ensure a quality fit and a long service life. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Silverado 2500 HD: 2001, 2002, 2003, 2004] - [Chevrolet Silverado 3500: 2001, 2002, 2003, 2004] - [GMC Sierra 2500 HD: 2001, 2002, 2003, 2004] - [GMC Sierra 3500: 2001, 2002, 2003, 2004]

