Boyesen Supercooler Water Pump Kit

Boyesen Supercooler Water Pump Kit
Boyesen Supercooler Water Pump Kit

$170.99 - $197.99
10% Off - Save up to $22.00

Description See Also: 20 Reviews 19 Questions Fitment
Item #BOY0003

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20 Reviews
4.9 out of 5 stars
5 Star   21 4 Star   1 3 Star   1 2 Star   0 1 Star   0
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All Reviews
Caleb Verified Purchaser
Worth It

You hear a lot of rumors about aftermarket pumps but this one is the one. It really works. When compared with the stock impeller this one is significantly larger. My 07 CRF250r used to run at like a billion degrees but now it runs smoother and cooler. Buy this it's worth it.

West Virginia
Works great and super easy to install!

Received my order in time for a weekend of trail riding in which this supercooler shines! Very easy to install..10 mins max! Does what it says. The impeller has larger fins to move coolant more rapidly. Great add-on if your bike gets hot!

Hank Verified Purchaser
Billings, MT, USA
Cooler running

I ride and race enduros and my bike runs a lot cooler and doesn't boil over anymore

Mase Verified Purchaser
Super easy install!

Threw the Boysesen super on my yzf250 last week. Install was super easy and it looks great on my bike. Contrary to other reviews my kit came with a gasket. I would have given it 5 star except it doesn't look like the picture. Although mine was for an 02 yzf250. Newer models may differ. Motorsport rocks!! Customer for life!!

GRaider Verified Purchaser
Livermore, CA, USA
Easy install

I'm not a mechanic,but, with the ease and simplicity of the destructions, the super cooler went on without any problems!!! Haven't been ride'n yet but it sure looks cool and hopefully will keep my bike just as cool...

Minneapolis, MN, USA
Awesome and looks sweet

The water pump and impeller installed super easy on my 08 Honda 250F, it was about a 5 minute job and I also went with engine ice for coolant, bike seems happier now and running cooler, so I am set for tight single track woods riding where overheating for me was more of an issue.

New Cambria, MO 63558, USA

I bought the super cooler for my 2004 yfz 450 that has been bored to a 478. The bigger bore has made it run a lot hotter but thanks to the supercooler, my yfz stays at a much lower temp now! Again, GREAT PRODUCT!!!!

2004 yfz 478 big bore!
HJChesser Top 1000 Contributor Verified Purchaser
Looks good

I installed on an 08 honda crf250r. It is very easy to install and it does look a little bigger than the stock one. I gave it 3 stars because of cost, it didn't come with a new gasket, and I cant tell that much of a difference but it does look good.

hollywood830 Top 500 Contributor

I bought this after having over heating problems at the snowshoe GNCC. Bike ran cool in the 100 degree temps at the John Penton after the install!

REVn Top 1000 Contributor

just installed the hot rods stroker kit in my 04 honda 450r, running on 112 octane this thing brought my temps way down! amazing would buy it again!!

Anymouse Top 500 Contributor
El Cajon, Ca
Worked as expected

I do a lot of desert riding (Glamis) and my engine temps would get a little high after hard riding out in the dunes, but after I installed this I did notice a decrease in temp. The impeller is noticably larger and no issues to date. This was placed on a 2009 yz450f. I will be getting this for the next bike I own, what ever it may be.

bandersen129s Top 500 Contributor
san jose, ca
A must have

If you're tough on your bike and you do alot of single track and race offroad, this is a must have product. Bought this a couple of years ago for my Honda crf450r cause I had a couple of boil-overs. Ever since I bought this product, I haven't had any problems with over heating my bike. A great product, easy to install and looks great.

California city, CA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Super supercooler

this product is amazing my 04 yfz 450 runs so much cooler for being in the desert. I can't wait to get one on my wifes bike.

Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5

This product is awsome easy install and bike runs much cooler thanks


Very happy with boyesen..... Always happy with 110 here and the bike runs 10 times cooler.... Thank you and thank you boyesen.

socalWR450 Top 500 Contributor
Orange County, CA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Style 5/5
Makes a BIG difference

I put this on my 09 WR450 and the bike does not overheat like it used to, it takes some time to install this but in the end it was well worth it to me.

Roll, Az
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Works Great

Livin out in the deasert we need things to run as cool as possible. This helped my brothers bike out alot and looks sick. Deffinitly recomend putting this on all bikes

Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5


racer54 Top 500 Contributor
Mckees Rocks, Pa
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
It does what it says

really good product, works well and looks good. i put it on my 07 crf250r and works great. id suggest changing water pump seals and bearing along with this. after i installed this 10 mins later my seals started to leak, not because the product was bad just because taking off the old impeller and installing the new one put alot of pressure on the seals and bearing and made them weak.

Atlanta, GA
Durability 5/5 Ease of Installation 4/5 Performance 4/5 Power 3/5 Style 5/5
Great investment

From riding the trails to the motocross track this pump will give you a great drop in overall engine temp. you will not longer have to worry about overheating. product is easy to install "impact gun helps with install". on top of the great performance and extended life of your motor you get that factory look bling on your bike.

19 Questions
Answered:   18
Not Yet:   1
Q: What kind of seal do I have to use with this?
4 days 12 hours ago
MotoSport Staff Expert
2 days 11 hours ago
A: Works with the stock gasket. Stock gaskets can be found in our OEM section here:

Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Location: North Carolina, USA
Q: Does boyesen make the supercooler for the 2013 honda crf 450r?
1 month 1 day ago
Location: California, USA
Q: In what color does this come for 2015 rmz 250?
1 month 4 days ago
Expert MotoSport Staff
1 month 1 day ago
A: This would be the black Boyesen Supercooler Water Pump Kit.
Q: Does it come with a new gasket for the outer case?
1 month 9 days ago
MotoSport Staff Expert
1 month 7 days ago
A: No. Gasket(s) is NOT included; use stock piece(s) or purchase new one separately.
Location: Illinois, USA
Q: Will this impeller fit on the OEM shaft or do i need to order a new shaft?
3 months 14 days ago
Expert MotoSport Staff
2 months 10 days ago
A: Fits the stock shaft.
Location: Indiana
Q: 2016 YZ250F?
Over 7 months ago
They dont make one to fit the 2016 YZ250F???
MotoSport Staff Expert
Over 7 months ago
A: Yes Boyesen does offer the Boyesen Supercooler Water Pump Kit for the YZ250F 2014-2016. If it is available through one of our suppliers, we would be happy to order it for you. Please contact one of our sales professionals to inquire about special orders and availability.
Dirt Bike: 1-888-676-8853
Q: Will this fit my 04 crf 450 with a power bomb exhaust?
1 year 1 month ago
Will this fit my bike with that exhaust because it's very close too the pump
Expert MotoSport Staff
1 year 1 month ago
A: The Boyesen SuperCooler Kit for your CRF450R (WPK-06B) is about the same size as the stock water pump cover. If the stock water pump cover fits with an FMF powerbomb, the Boyesen SuperCooler Kit will fit. We are not aware of any fitment problems.
Location: Maryl Street, Burlington, WI 53105, USA
Q: What color will this be for an 06 crf 250r?
1 year 10 months ago
MotoSport Staff Expert
1 year 10 months ago
A: It would be a black cover (WPK-07B) for your 2006 Honda CRF250R.
Q: Twin Air oil filter cap?
2 years 2 months ago
will the Twin Air oil filter cap work with this water pump?
Expert Top 1 Contributor MotoSport Staff
2 years 2 months ago
A: No, the Twin Air Oil Filter Cap will not work with the Boyesen Supercooler Water Pump Kit.
Location: australia
Q: Will this fit my 2014 yz450f?
2 years 3 months ago
MotoSport Staff Expert Top 1 Contributor
2 years 2 months ago
A: Unfortunately, at this time Boyesen do not have a Boyesen SuperCooler Kit available to fit the 2014 Yamaha YZ450F. The ’10-’13 YZ450F Boyesen SuperCooler Kit will not fit the 2014 year model. Boyesen does not have a release date yet for this new item.
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