− Decrease quantity for Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo In-tank Lift Pump Quantity + Increase quantity for Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo In-tank Lift Pump Out of stock