Diesel Water Pumps
Diesel water pumps move coolant through your engine and keep operating temperatures in check under hard, sustained load. A failing pump means overheating, a stranded truck, and downtime you can't afford. JAK'S Diesel stocks heavy-duty and Class 8 water pumps from PAI Industries and other trusted lines, cross-referenced to OEM and competitor numbers so you get the right pump the first time.
Browse the pumps below. Not sure which one fits your engine? Send us your OEM, casting, or competitor part number and we'll confirm the correct replacement before you buy.
Choosing the Right Diesel Water Pumps
Heavy-duty diesel components must be matched to the exact engine and application. Before ordering from this collection, verify the part number, engine model, engine serial number, and any casting or calibration number shown on the original component.
Fitment information to have ready
- OEM, dealer, casting, or interchange part number
- Engine manufacturer, model, and engine serial number (ESN)
- Truck year and model when the component is chassis-specific
- Core details for remanufactured or exchange components
Need a fitment check?
Use the OEM cross-reference tool or text a clear photo of the part tag to (720) 445-6249. A JAK'S Diesel specialist can confirm the match before the part ships.
Can't Find the Right Part?
Text us the part number or a photo of the tag — we'll cross-reference it and quote you the right one.