BOYESEN - WPK-37AB - Impeller/Waterpump Cover - Black - Yamaha
The BOYESEN WPK-37AB is an aluminum investment-cast water pump cover and impeller kit for 2014-2019 Yamaha YZ250FX, YZ250F, and WR250F off-road models, designed with a patented nautilus-style impeller for hydrodynamic efficiency to increase coolant flow at all RPM ranges and keep the engine running cooler at a constant temperature.
Features
- An aluminum investment-cast water pump cover and impeller combo; specifically designed to enhance the performance of your engines cooling system
- This high-flow, hydrodynamic water pump kit has been tested and designed to flow more coolant
- By increasing the flow at all rpm ranges, the engine will run cooler at a more constant temperature
- Patented nautilus style impeller for hydrodynamic efficiency
- Extend engine life
Specs
- Color/Finish: Black
- Color/Finish: Powder-Coated
- Model: Supercooler
- Product Name: Cover and Impeller Kit
- Type: Water Pump
- Units: Kit
- Material: Aluminum
- Riding Style: Off-Road
Frequently Asked Questions - BOYESEN - WPK-37AB - Impeller/Waterpump Cover - Black - Yamaha
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
