Yamaha WR450F Water Pump Rebuild Kit - Vertex Pistons - `03-`06. This Vertex rebuild kit contains the components needed to refresh the water pump on 2003–2006 WR450F models, providing an economical, direct OEM replacement to restore pump sealing and operation.

The kit includes all gaskets, O-rings, a mechanical seal, oil seals and bearings required to overhaul the water pump. Designed as a component-level replacement rather than a full assembly swap, this kit lets knowledgeable mechanics and enthusiasts service the pump using original fitment specifications. Using a rebuild kit can reduce downtime and parts cost compared with buying a full OEM assembly, while maintaining compatibility with factory housings and shafts.

Features

• Complete seal and bearing set: gaskets, O-rings, mechanical seal, oil seals and bearings.
• Vertex Pistons branded components made to match OEM form and fit.
• Intended for 2003–2006 Yamaha WR450F water pump overhaul.
• Cost-effective alternative to purchasing a new pump housing or OEM assembly.

If you have questions about fitment, installation or compatibility with your WR450F build, call us directly — we can help walk you through the process. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for assistance or to schedule service.

If you are considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov