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Heavy-duty replacement water pump for Cummins ISX and X15 engines, crossing OEM numbers 3692580, 3687810, 3691299, and 5719755. This PDI Big Boss unit is built for high-mileage cooling-system service with heavy-duty bearings and seals. It is a like-for-like swap when the original pump starts weeping coolant or its bearing gets noisy.
Water Pump for Cummins ISX / X15 Engines
$501.55