KFX400 Mechanical Water Pump Seal Kit for Kawasaki KFX 400 2003-2006

Mechanical Water Pump Seal Kit for Kawasaki KFX400

This mechanical water pump seal kit is a direct-fit replacement for the Kawasaki KFX 400, restoring a leak-free seal in the water pump assembly so coolant stays contained and the engine keeps running at proper temperature; it cross-references OEM seal kit numbers where the KFX400 water pump seal kit is called out in the listing.

Overview

This mechanical water pump seal kit for Kawasaki KFX 400 models from 2003 through 2006 replaces worn or leaking water pump seals that allow coolant to escape or contaminate the oil. The kit is built for riders and mechanics performing routine cooling system maintenance or repairing a coolant weep at the pump housing. Each component is sized to match the KFX400 water pump assembly, making this mechanical water pump seal kit a practical drop-in service item.

Built For Performance

• Mechanical seal design suited to the KFX400 water pump housing
• Seal faces and elastomers selected for coolant exposure
• Direct replacement for the factory water pump seal on 2003-2006 KFX400 models
• Kit form so the pump can be serviced in one pass
• Components sized for correct shaft and bore fitment

Fits These Machines

• for Kawasaki KFX 400 (2003)
• for Kawasaki KFX 400 (2004)
• for Kawasaki KFX 400 (2005)
• for Kawasaki KFX 400 (2006)

On-The-Job Use

• Cooling system rebuilds on KFX400 quads
• Fixing coolant weep from the water pump weep hole
• Routine seal replacement during top-end or pump service
• Preventive maintenance before long trail rides

Specs At A Glance

Good To Know

Q: How do I know the water pump seal needs replacing? A: Common signs include coolant dripping from the weep hole, coolant loss without an external leak, or milky oil from coolant mixing in. Replacing the seal kit at the first sign prevents pump bearing damage.

Q: Does this kit include everything needed for the job? A: It covers the water pump seal components called out in the listing for the KFX400. Check your service manual for any additional gaskets or hardware you may want on hand.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.