Dorman's Power Steering Cooler is conveniently designed as a direct replacement and in some cases an improved design for increased longevity. A proper fit is ensured, every time. FITMENT CHART 2011-2013 Chevrolet Silverado 2500 HD Please wait... 2011-2013 Chevrolet Silverado 3500 HD Please wait... 2011-2013 GMC Sierra 2500 HD Please wait... 2011-2013 GMC Sierra 3500 HD Please wait... INTERCHANGE General Motors : 25805706 SPECIFICATIONS Color Black Fitting Type Female Tube Height 9 Inlet Fitting Inside Diameter 0.374 Inlet Fitting Outside Diameter 0.433 Material Steel Outlet Fitting Inside Diameter 0.374 Outlet Fitting Outside Diameter 0.433 Length 20.5 Overall Width 2 In. Package Contents 1 Power Steering Cooler; 2 Hoses; Hardline; Clamps Thickness 1 California Proposition 65 WARNING: Cancer and Reproductive Harm GÇô www.P65Warnings.ca.gov