Boyesen Water Pump Kit (Supercooler, Magnesium) 09402226 - Yamaha WR450F / YZ450F / YZ450FX 2023-2026

Product Description

Enhance the thermal efficiency and cooling capacity of your dirt bike with the Boyesen Water Pump Kit. Designed specifically to eliminate cooling system bottlenecks, this high-flow upgrade ensures your engine runs cooler and maintains a more consistent operating temperature during intense off-road riding.

Featuring an aluminum investment-cast water pump cover paired with a nautilus-style hydrodynamic impeller, this kit is precision-engineered to flow more coolant across all RPM ranges. Made in the USA with a durable powder-coated magnesium finish, it optimizes hydrodynamic efficiency to protect your engine and extend its overall lifespan.

Top Features: Boyesen Supercooler Water Pump Kit

• Aluminum investment-cast water pump cover and hydrodynamic impeller combo engineered to enhance cooling performance.
• High-flow design tested to flow significantly more coolant through the system.
• Increases coolant flow at all RPM ranges, allowing the engine to run cooler at a more constant temperature.
• Nautilus-style impeller maximizes hydrodynamic efficiency to reduce cavitation.
• Durable powder-coated magnesium finish built proudly in the USA to extend engine life.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Does this water pump kit improve engine cooling over stock?
A: Yes, the high-flow hydrodynamic design increases coolant flow across all RPM ranges to help your engine run noticeably cooler and maintain a stable operating temperature.

Q: What materials are used for this pump kit?
A: It features an aluminum investment-cast water pump cover with a powder-coated magnesium finish and a nautilus-style impeller.

Expert Pro-Tip: When installing your new water pump kit, always drain your coolant completely, inspect the inner case gasket sealing surface for debris, and use a fresh gasket or proper sealant to prevent leaks before refilling with high-quality coolant.

Recommended Pairings:

• Yamaha 4-Stroke Performance Parts & Upgrades
• Yamaha YZ450F Performance Parts
• Motorcycle Tools

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their machines. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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