Compatible With With The Following Vehicles:Compatible With: 2006-2009Compatible With Chevyc4500 Kodiak,C4c042,8 Cyl 6.6L2006-2009Compatible With Chevyc4500 Kodiak,C4e042,8 Cyl 6.6L2006-2009Compatible With Chevyc4500 Kodiakl,C4u042,8 Cyl 6.6L2006-2009Compatible With Chevyc4500 Kodiak,C4v042,8 Cyl 6.6L2006-2009Compatible With Chevyc4500 Kodiak,C4c044,8 Cyl 6.6L2006-2009Compatible With Chevyc4500 Kodiak,C4e044,8 Cyl 6.6L2006-2009Compatible With Chevyc5500 Kodiak,C5c042,8 Cyl 6.6L2006-2009Compatible With Chevyc5500 Kodiak,C5e042,8 Cyl 6.6L2006-2009Compatible With Chevyc5500 Kodiak,C5u042,8 Cyl 6.6L2006-2009Compatible With Chevyc5500 Kodiak,C5v042,8 Cyl 6.6L2006-2009Compatible With Chevyc5500 Kodiak,C5c044,8 Cyl 6.6L2006-2009Compatible With Chevyc5500 Kodiak,C5e044,8 Cyl 6.6L2006-2016Compatible With Chevyexpress 2500,Base,8 Cyl 6.6L2006Compatible With Chevyexpress 2500,Lt,8 Cyl 6.6L2006Compatible With Chevyexpress 2500,Ls,8 Cyl 6.6L2006-2016Compatible With Chevyexpress 3500,Base,8 Cyl 6.6LProduct Info: Part: Water Pumpnotes: Without PulleyInterchange Part Number: 12637105Additional Info: Silverado 2500 Hd / Sierra 2500 Hd 06-16 Water Pump, With Housing, 8 Cyl, 6.6L Eng.Premium Aftermarket Replacement Parts:Exact Fit To Original Equipment Manufacturer(Oem) Partall Of Our Items Are Dot And Sae CertifiedGuarantees And Warranties:30-Day Satisfaction Guarantee1-Year Limited WarrantyMade To Last: This Item Is Constructed With High Quality Material And Rigorously Tested To Ensure Structural Strength And IntegrityPlease Confirm Oem # Or Partslink # Matches Your Current Part Exactly Before Purchasing, Otherwise, The Item Might Not Fit. To Ensure Safe Delivery, Please Note Signature May Be Required For $200+ Orders.