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Boyesen Supercooler Water Pump Kit
Boyesen Supercooler Water Pump Kit

$163.99 - $203.99
10% Off - Save up to $22.00

Select your bike to see if this water pump fits
Item #BOY0003

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60 Reviews
4.8 out of 5 stars
5 Star   51 4 Star   6 3 Star   2 2 Star   0 1 Star   1
All Reviews
Terry Verified Purchaser
4 days 11 hours ago Ohio
Works Great!

Great quality, fit and function! My 07 CRF450R was a little hotter than I liked. After installing this, my temp went down several degrees. Looks great also! Highly recommend this and also the radiator cap with temp gauge.

Red piper Verified Purchaser
1 month 14 days ago Naples FL

Took three tries and i had to get a custom impeller made by boyesen end of the day it works and looks badass and i got a extra free cover in the deal!

1 month 15 days ago
Must have!

Easy to install and very useful for the bike. Stock was s*** u must change. (KTM 450 EXC-F 2018)

2 months 3 days ago Colorado
Better cooling

The new cover looks great and my bike seems to run cooler. A little on the expensive side which is why it’s a 4 star. Not much else to say.

XKurt Verified Purchaser
3 months 22 days ago Port Huron , MI
Quality Product

Working flawlessly !

Rick Verified Purchaser
4 months 2 days ago OR
Impressive difference

I am very hard to please and quick to find fault with parts, but this exceeded my expectations. When I bought it I thought why is it so expensive, but seeing how superior it was compared to stock was amazing. The stock pump was a cheesy 2 piece plastic thing, I was shocked to find such a cheesy part in a KTM. The pump cover is cool, looks great and the pump is a one piece aluminum with huge fins to move the coolant flow. It was well worth the money and adds bling to my KTM!!!

The General
4 months 8 days ago
Boysen water pump

This product is very impressive.
Reduced engine temps all by itself.
10/10 have recommend to a friend.
Put them on every bike I have.
Build quality is outstanding.

Cain Verified Purchaser
Over 5 months ago Chelsea AL
Boyesen superccooler water pump kit

Be advised! The impeller will not fit the 2019 ktm xcf! I contacted Boyesen directly and they are working on manufacturing an impeller that fits. The diameter of the hole in the impeller is smaller than the countershaft that it supposed to slide onto. It was frustrating draing my coolant to find this out for my self but, Boyesen told me that when they get one correctly manufactured for my bike, they would send me the correct one by mail.

Wally Top 1000
Over 5 months ago Iowa
Never a bad update

Get more flow and more cooling! Must have for all riders. Heavy duty over oem

Mk cr250r Verified Purchaser
Over 5 months ago New York

Very easy to install and fixed my overheating issue in trails .

See 10 More Reviews
32 Questions
Answered:   29
Not Yet:   3
Q: Is it like anodized? or is it painted?
4 months 27 days ago
Q: My 2013 KTM 350 exc-f is apparently prone to frying the crankshaft position sensor coil from high oil temperatures around 100 hours of use.  This happened to me last week in the middle of the Arizona desert. Will this or an oil cooler be best?
Over 7 months ago
Q: Anything cooling pump product for gsxr 750 k7?
Over 8 months ago
Top 25
Over 8 months ago
A: I am sorry, I can't find any for your GSX-R750.
Q: I have a 2004 rmz 250 dose this product come with everything to install it or would I need to buy extra parts ???
1 year 1 month ago
Top 10
1 year 1 month ago
A: The gaskets will not be included.
Q: Does this come with the shaft?
1 year 1 month ago
1 year 1 month ago
A: No. It only comes with o-ring, impeller and cover. 
Q: Does this cover work with the stock water pump impeller?
1 year 3 months ago
Verified Purchaser Top 1000
1 year 3 months ago
A: That is a good question. I have always used the Boyesen cover with the Boyesen pump impeller because it's a kit and they were probably designed to work more efficiently together.
Top 10
1 year 3 months ago
A: The Boyesen Supercooler Water Pump Kit is model specific. To provide accurate answers about fitting, we will need to know the year, make, and model of your motorcycle.
Boyesen Supercooler Water Pump Kit includes the correct impelller.
Q: Will this fit a 2006 yfz450
1 year 4 months ago
Top 10
1 year 4 months ago
A: Yes, this will fit a 2006 Yamaha YFZ450. Be sure to profile the year/make/model of your machine to make sure you get the right part.
Q: 2017 KTM 500 EXCF - is gasket included for this model?
1 year 5 months ago
Top 10
1 year 5 months ago
A: Note: Gasket(s) is NOT included; use stock piece(s) or purchase new one separately.
Q: I have a 2006 trx 450er ,the picture that pops up , is not correct? is it just for reference ? and qare there differant colors available ?
1 year 5 months ago
Top 25
1 year 5 months ago
A: Yes the photos are just for reference, and it looks like the only color available for your bike is black
Q: Will this fit and work for a 2017 yz 125 2 stroke
1 year 8 months ago
Cover designs also look like they change with the the color I’d like a blue one but looks diffrent than the cover that’s on my bike will it still fit or no
Top 10
1 year 8 months ago
A: This will fit your bike, and you do have the blue one available to you. The photo pictured is for reference and may not be an exact look to what is the proper fitment for your bike.
1 - 10 of 32

See all bikes that this part fits...

See Fitments
# Part Numbers
Product Variant Manufacturer Part #
Black WPK-07B
Black WPK-07AB
Black WPK-06B
Black WPK-06AB
Black WPK-17B
Black WPK-18B
Black WPK-27B
Black WPK-26B
Black WPK-26AB
Black WPK-08B
Black WPK-37B
Black WPK-38B
Black WPK-38AB
Black WPK-01B
Black WPK-08AB
Black WPK-09B
Black WPK-10B
Black WPK-12AB
Black WPK-24B
Black WPK-31AB
Black WPK-32AB
Black WPK-37AB
Black WPK-38CB
Black WPK-44B
Black WPK-45B
Black WPK-80B
Black WPK-17AB
Black WPK-18AB
Black WPK-20B
Black WPK-41B
Black WPK-44AB
Black WPK-45AB
Silver WPK-18
Silver WPK-27
Silver WPK-26
Silver WPK-37
Silver WPK-24
Silver WPK-28
Magnesium WPK-07M
Magnesium WPK-07AM
Magnesium WPK-06M
Magnesium WPK-06AM
Magnesium WPK-17M
Magnesium WPK-18M
Magnesium WPK-27M
Magnesium WPK-26M
Magnesium WPK-26AM
Magnesium WPK-37M
Magnesium WPK-38M
Magnesium WPK-38AM
Magnesium WPK-09M
Magnesium WPK-10M
Magnesium WPK-24-M
Magnesium WPK-31AM
Magnesium WPK-32AM
Magnesium WPK-37AM
Magnesium WPK-38CM
Magnesium WPK-44M
Magnesium WPK-45M
Magnesium WPK-17AM
Magnesium WPK-18AM
Magnesium WPK-20M
Magnesium WPK-41M
Magnesium WPK-44AM
Magnesium WPK-45AM
Blue WPK-17L
Blue WPK-18L
Blue WPK-10L
Blue WPK-31AL
Blue WPK-32AL
Blue WPK-37AL
Blue WPK-38CL
Blue WPK-44L
Blue WPK-45L
Blue WPK-17AL
Blue WPK-18AL
Blue WPK-41L
Blue WPK-44AL
Blue WPK-45AL
White WPK-07W
White WPK-06AW
White WPK-09W
White WPK-10W
White WPK-45W
Orange WPK-44O
Orange WPK-45O
Orange WPK-41O
Orange WPK-44AO
Orange WPK-45AO
Red WPK-07R
Red WPK-07AR
Red WPK-06AR
Red WPK-26AR
Red WPK-09R
Red WPK-20R
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