Fits:
$158.90 – $240.46
The Boyesen Super Cooler water pump kit is 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, the engine will run cooler at a more constant temperature.
Product Note:
| Specification | Details |
|---|---|
| Color | Varies (make selection above) |
| Country of Origin | USA |
| Finish | Powder Coated |
| Material | Aluminum |
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
By Reid M. on
Verified Purchaser
It's honestly amazing I love the finish on it and it makes my bike run 20 degrees cooler it's a must have for all Dirtbike models and brands! It was easy to install and I wish I would have done it sooner!
By Reid M. on
Verified Purchaser
Best in the biz if your bike is over heating put this on it
By Michael B. on
Just buy it! You won't be disappointed. Great product. I'm glad I bought it.
By Alfred A. on
Verified Purchaser
Great product, it performs as promised and was an extremely easy install.
By Daniel D. on
Verified Purchaser
It was an easy install.
By Fred G. on
Verified Purchaser
The Boyesen kit is top quality and well designed. The housing has an angle that helps keeping the coolant hose spaced from my aftermarket header. Perfect.
By Landon S. on
Verified Purchaser
The top bolt was a tight fit but it works well and keeps my bike cool on slow enduro parts.
By Vincent M. on
Verified Purchaser
Very nice quality and looks awesome!
By Randy S. on
Verified Purchaser
It worked perfect.
By Thomas S. on
Verified Purchaser
It works perfect as stated.
By Chris G. on
Verified Purchaser
Excellent - should of given new o-ring gasket but product is excellent.
By Mark P. on
Verified Purchaser
Running cool and strong. Wise upgrade for any side by side. Excellent quality and fit. 5 stars
By Leo C. on
Verified Purchaser
Replaced stock water pump with the Boysen Super Cooler. Works well and no more over heating issues.
By Calvin M. on
Verified Purchaser
Works good. Keeps running lots better on my 1000 Outlander
By lou on
Good grief I love this thing. No more emptying the coolant to change the oil. My bike has actually quit overheating which seems to be an issue on the RMZ250.
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By Mason
Hey my water pump seals are bad on my 2017 ktm 350 sxf and I was going to upgrade this to my bike. I was wondering if I was gonna have to buy new seals. Thank you.
No seals are included with these Boyesen Supercooler Water Pump Kits. You can re-use the OEM water pump seal, assuming it's in good condition. Otherwise, check out the Vertex-Winderosa Mechanical Water Pump Seal on our website to order the appropriate kit to fit your machine so you have everything you need on hand to refresh the water pump assembly.
By Anon.
If not, can you tell me why I am not sure what the difference is between the f. And the f. X.
Yes! If you were t select the 2020 Yamaha YZ450F Boyesen Supercooler kit from our fit guide, you'd receive the correct components to fit your machine.
By Brian
Yes, the kit would include a gasket.
By Rob
A gasket will be included with the kit.
By Matthew
Is this part WPK 31AB
If you choose a 2020 YZ125, it would also fit that 2020 YZ125X model.
By Bryce
This would be for the upgraded aluminum impeller and cover to house it.
Have a question? Please ask our experts and customers who own this product.
