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Boyesen WPK 38B Supercooler Black Water Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.3
🌡️ Engine Cooling & Climate Control, 🛠️ Replacement Parts

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Media

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img 1 attached to Boyesen WPK 38B Supercooler Black Water

Details

BrandBoyesen
MaterialAluminum
Item Weight0.4 Pounds
Vehicle Service TypeATV

Description of Boyesen WPK 38B Supercooler Black Water

Fits: Yamaha YZ450F 2003-2009. By casting a totally new water pump cover, Boyesen was able to maximize the flow through the unit; Boyesen's design takes advantage of everything from Bernoulli's effect to biological studies. Unlike the stocker, Boyesen's water inlet has an increasing diameter and artfully curved shape; this is a vast improvement over most stock inlets, which decrease in diameter as they near the impeller and have a 90-degree bend at the pump. Patented nautilus style impeller for hydrodynamic efficiency, reducing heat, gaining horsepower and extending engine life. Asbestos-free gasket is bound with nitrile for tight, leak-free seal.

Reviews

Global ratings 3
  • 5
    1
  • 4
    1
  • 3
    1
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Efficient Cooling System for Engine

When I tried this, it significantly reduced my engine temperature and led to better overall performance. The installation was easy and took less than an hour.

Pros
  • Improved performance, easy installation.
Cons
  • None found.

Revainrating 3 out of 5

It's nice to know there's something to work harder on.

This thing pushes out quite a bit of coolant. The bike still overheats when run for a long time, but it lasts a little longer. It's nice to know there's something more serious about this bike than my $$el.

Pros
  • Fits: Yamaha YZ450F 2003-2009
Cons
  • Available in black only

Revainrating 4 out of 5

I expected the pads to come with it.

I was expecting pads to come along for the price. I'll install it over the weekend when the gasket kit arrives. Hope it works as good as they say. Installed the pump today and it works great. I'm still disappointed that it didn't come with gaskets, seals and a bearing. It seems like a good product that would be great if it included all the details.

Pros
  • By developing an all-new water pump cover, Boyesen was able to maximize flow through the pump; Boysen's design exploits everything from the Bernoulli effect to biological research
Cons
  • I'll add later