• High quality construction to ensure a perfect seal between water pump, gasket, and engine
• Direct replacement for OE water pump part number AR4284
• Cummins 855 Engine Application
• Genuine PAI product including a factory 2-Year Warranty
• Quality You Can Trust - PAI has established themselves as the leading supplier of aftermarket heavy duty diesel parts, with quality standards that always meet or exceed OE standards

Features

• DETAIL - PAI water pumps feature precise dimensions and superior craftsmanship. Our water pumps are precision machined and assembled to meet or exceed the OEM specifications. The oil pumps we manufacture are precision laser measured in a 3D environment to ensure exact fitment.
• STRENGTH - PAI water pumps are made of industry leading materials and processes. Our water pumps are rigorously tested to ensure extreme reliability in high temperature and high stress environments.
• VARIETY - PAI is a market leader in water pumps and related parts. We have been manufacturing and expanding our product offerings since 1973. If there is a water pump you need, and do not have it, there is a good chance we are working diligently to make it. Whether you are looking for a water pump, pump gasket, pump O-ring, or a kit including all three; PAI has you and all your vehicle needs covered.