525.25.0002 Cummins Compatible Water Pump

What does a water pump do?

A water pump is a centrifugal-type component in a heavy commercial vehicle engine that continuously circulates coolant between the engine block, cylinder head, radiator, heater core, and oil cooler. This part is critical for maintaining optimal engine temperatures during intensive operation.

Compatible vehicles and engines

This water pump is designed to fit a wide range of heavy commercial vehicle engines, including Cummins ISL9 and L9 engines found in International Durastar and Workstar models. It also serves Freightliner M2 series, Kenworth T-series, Peterbilt models, and various bus engines from Thomas Built Buses, Blue Bird, and New Flyer. This component is specifically engineered to handle the thermal loads of heavy-duty applications.

Installation and maintenance

For optimal performance, technicians should inspect the pump during routine belt service. Common indicators for replacement include coolant leakage from the weep hole or unusual bearing noise. When installing, ensure all mating surfaces are clean to prevent leaks.

Troubleshooting

Check the compatibility list.

OE cross-reference

525.25.0002 (Water Pump Water Pumps) is the equivalent of the Cummins OE numbers. This part directly replaces Cummins OE numbers 2882044, 3959582, 3973115, 4309344, 4309344NX, 4376357, 4955529, 4955529NX, 5291444, 5346204, 5528405, 5579023, 5681294, 6410398.