Water Pump Rebuild Kit for KTM EXC 450 EXC450 2003-2007

Water Pump Rebuild Kit for KTM EXC 450

This water pump rebuild kit is a complete seal, bearing, and gasket set for the KTM EXC 450, giving the pump the fresh parts it needs to hold coolant pressure and keep the engine running at the right temperature.

Overview

This water pump rebuild kit for KTM EXC 450 covers the wear items inside the pump housing so you can restore coolant flow without replacing the whole assembly. It suits riders and home mechanics refreshing a high-hour EXC 450, and every part in the water pump rebuild kit is chosen to match the 2003-2007 fitment range.

Built For Performance

• Complete kit covering seals, bearing, and gaskets needed for a water pump rebuild
• Seals designed to resist coolant and heat cycling
• Bearing rated for continuous pump shaft rotation
• Gaskets sized to seal the pump housing correctly
• Parts matched to the 2003-2007 EXC 450 layout
• Straightforward rebuild for a home workshop

Fits These Machines

• for KTM EXC 450 2003
• for KTM EXC 450 2004
• for KTM EXC 450 2005
• for KTM EXC 450 2006
• for KTM EXC 450 2007

On-The-Job Use

• Replacing a weeping water pump seal on a high-hour EXC 450
• Rebuilding the pump during a top end or cooling system refresh
• Restoring coolant flow after overheating or coolant loss
• Routine maintenance on a used or newly acquired dirt bike

Specs At A Glance

Good To Know

Q: Do I need to drain the coolant before fitting this kit? A: Yes, drain the cooling system first so the pump housing can be opened without spillage. Refill with the correct coolant mix once the rebuild is complete.

Q: How do I know the water pump needs a rebuild? A: Common signs include coolant weeping from the weep hole, overheating, or play in the pump shaft. Replacing the wear items as a set helps avoid repeat repairs.

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