Boyesen Magnesium Supercooler Water Pump Kit WPK-38DM | Yamaha YZ450F FX WR450F 2023-2025

Water Pump Kit - Orange - Gas Gas/Husqvarna/KTM

Product Description

When you are pushing your machine to its limits on the track or trail, maintaining an optimal engine temperature is critical for peak performance and longevity. The Boyesen Supercooler Water Pump Kit is a high-flow, hydrodynamic upgrade specifically engineered to enhance your engine's cooling system capacity. Moto-House MX delivers this race-proven setup to eliminate heat fade, maintain consistent operating temperatures, and protect your engine internals during rigorous off-road riding.

Manufactured in the USA, this premium kit features an investment-cast aluminum water pump cover and a meticulously engineered Nautilus-style impeller. By increasing coolant flow across all RPM ranges, the Boyesen Supercooler reduces engine temperatures efficiently to extend your engine's overall life. Boasting a durable powder-coated magnesium finish, this drop-in performance upgrade adds a factory racing look to your bike while delivering heavy-duty cooling protection. Secure yours today!

Top Features: Boyesen Supercooler Water Pump Kit

• Hydrodynamic Efficiency: Patented Nautilus-style impeller and cover combo designed to maximize coolant velocity and flow dynamics.
• Enhanced Cooling Performance: Significantly increases flow at all RPM ranges, allowing the engine to run cooler at a more constant temperature.
• Durable Construction: Investment-cast aluminum cover finished with a rugged, corrosion-resistant magnesium powder coating.
• Made in the USA: Designed, tested, and manufactured to strict quality standards for ultimate reliability on the track or trail.
• Complete Upgrade Kit: Includes a high-flow water pump cover and a matched performance impeller for a direct replacement of stock components.

Don't let engine overheating cut your weekend short—verify your fitment below and upgrade your cooling system today!

Fitment List

Year Range	Vehicle Brand	Vehicle Model
2024-2025	Yamaha	WR450F
2024-2025	Yamaha	YZ450FX
2023-2025	Yamaha	YZ450F

Frequently Asked Questions

Q: Does this kit include a replacement gasket?
A: This kit includes the high-flow aluminum cover and performance impeller. We highly recommend using a fresh OEM or high-quality replacement water pump gasket during installation to ensure a perfect, leak-free seal.

Q: Will this fit my stock water pump lines and hoses?
A: Yes, the Boyesen Supercooler cover is designed to mount seamlessly to stock locations and accepts your original cooling hoses without any modifications required.

Q: How does the Boyesen impeller differ from the stock one?
A: The Nautilus-style impeller features a hydrodynamic shape that reduces fluid cavitation and drag, allowing it to move significantly more fluid volume than standard factory impellers.

Expert Pro-Tip: Always completely drain your cooling system and thoroughly clean the engine casing mating surfaces before installing the new cover. Be sure to torque the water pump cover bolts to factory specifications to prevent warping or stripping the aluminum threads.

Recommended Pairings:

• Shop High-Performance Engine Coolants
• Browse All Yamaha YZ450F Performance Parts
• Browse All Boyesen Performance Upgrades

Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The Best Motocross/UTV & ATV Shop in Central Florida.