Silverado 2500 HD (2004-2005). Silverado 3500 (2004-2005). Sierra 2500 HD (2004-2005). Sierra 3500 (2004-2005). TheDorman 904-138 Fuel Injection Harness is compatible with select 2004-2005 Chevrolet, GMC, and Workhorse models and has an OEM part number of98017958.
