Review on Gates 42291 Water Pump by Rolando Munoz

Typical of Gates this pump is of excellent quality. Although it has a plastic impeller I don't see this as a problem unless you have a lot of dirt in your truck's cooling system that could wear out on the impeller. Otherwise it costs less than half of a Cummins pump and is easy to replace. There's an oddity, the outlet is on top of the pump, but I suspect Gates wanted you to be able to easily see the coolant when the seal wore out.