Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Cummins · Cooling System
370C/6410398
In stock · ships from Knoxville
This is a genuine Cummins water pump kit, designed for C Series, ISL, QSL, and EPA17 8.9-liter ISC/ISL diesel engines.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Replaces old Cummins part number 5579023. Verify exact engine model and EPA year before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
Different year, make, or config? Get a confirmation against your truck in under a minute.
The pump circulates coolant through the engine block and radiator to maintain safe operating temperatures. It should be replaced when you notice coolant leaks from the weep hole, bearing noise, or as part of scheduled maintenance to prevent overheating and engine damage. The kit includes the pump and necessary seals or gaskets for installation.
Part Number: 370C/6410398
WATER PUMP KIT
Vendor: Velocity
Dealer: KP Services Crossville
Compatibility, alternatives, and more
