Dorman Reman Thrtl Module P/N 599-959, Avalanche 1500, Avalanche 2500, C4500 Kodiak, C4500 Topkick, C5500 Kodiak, C5500 Topkick, C6500 Kodiak, C6500 Topkick, C7500 Kodiak, C7500 Topkick, C8500, C8500 Topkick, Cadillac, Chevrolet, Escalade, Escalade ESV, Escalade EXT, GMC, H2, Hummer, R26, Sierra 1500, Sierra 1500 HD, Sierra 2500, Sierra 2500 HD, Sierra 3500, Silverado 1500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500, Suburban 1500, Suburban 2500, Tahoe, W16, W18, W20, W21, W22, W24, W25, Workhorse, Yukon, Yukon XL 1500, Yukon XL 2500