+3 Welded Water Pump W/ Housing for 6.6l Duramax L5P 2017-2021 Chevy GMC 251-817 KB-251-817 $237.95 In stock Quantity: 1 Add to Bag Product Details New Genuine Water Pump with Housing. The drive gear is welded to prevent slippage between the gear & shaft. Fits: 6.6l Duramax L5P 2017-2021 Chevy GMC 2500/3500 Warranty: 24 Month/Unlimited Miles *Warranty claims will require proof of purchase, approximate install date & mileage, make, model & VIN Save this product for later Favorite