Mr. Cool is a manufacturer and distributor of over 15,000 OEM replacements for hundreds of Original Equipment Manufacturers.  Products include: 

  • Heat Exchangers
  • Oil Coolers
  • Aftercoolers
  • Truck radiators

We specialize in marine engine cooling and can assist with new designs, custom designs or redesigns of your current configuration.  If you have an old craft you want functioning like new or a recent build and a bit of bad luck, we can assist with it all.  Recently we’ve included Fresh Water Cooling kits amongst our offerings which allows us to cool a variety of small block engines that may not have come from the OEM that way. 

Well-known and respected for our customer service we have grown steadily over the last 20 years as a leader in the industry. We have proven to be your reliable source for engine cooling products including Barr Exhaust Systems as well. 

Major OEM products we replace include:

  • Mercruiser / Mercury®
  • Volvo®
  • Caterpillar®
  • Cummins®
  • Onan® Generators
  • Westerbeke® Generators and propulsion engines
  • Kohler®
  • SeaKeeper®

You can see if we have your part by searching our product database by clicking here.  If not, Contact Mr. Cool today to learn what we can do for you at 248-960-7850 OR  866-726-2665.   

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3,270 Verified Customer Reviews

3,270 Customer Ratings and Reviews

Shopper Approved collects trusted reviews from customers who have made a verified purchase.

4.8

Overall Star
Rating

5 Shopper Approved - Review Star
2788
(85.3%)
4 Shopper Approved - Review Star
406
(12.4%)
3 Shopper Approved - Review Star
57
(1.7%)
2 Shopper Approved - Review Star
11
(0.3%)
1 Shopper Approved - Review Star
8
(0.2%)


5-star reviews
2,500+

5-star reviews

8 years collecting reviews

About this Company

Mr. Cool is a manufacturer and distributor of over 15,000 OEM replacements for hundreds of Original Equipment Manufacturers.  Products include: 

  • Heat Exchangers
  • Oil Coolers
  • Aftercoolers
  • Truck radiators

We specialize in marine engine cooling and can assist with new designs, custom designs or redesigns of your current configuration.  If you have an old craft you want functioning like new or a recent build and a bit of bad luck, we can assist with it all.  Recently we’ve included Fresh Water Cooling kits amongst our offerings which allows us to cool a variety of small block engines that may not have come from the OEM that way. 

Well-known and respected for our customer service we have grown steadily over the last 20 years as a leader in the industry. We have proven to be your reliable source for engine cooling products including Barr Exhaust Systems as well. 

Major OEM products we replace include:

  • Mercruiser / Mercury®
  • Volvo®
  • Caterpillar®
  • Cummins®
  • Onan® Generators
  • Westerbeke® Generators and propulsion engines
  • Kohler®
  • SeaKeeper®

You can see if we have your part by searching our product database by clicking here.  If not, Contact Mr. Cool today to learn what we can do for you at 248-960-7850 OR  866-726-2665.   

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D
Shopper Approved - Verified Customer DENIS H.
Today , FL

A++++ products and service. Thanks a lot


B
Shopper Approved - Verified Customer Brian N.
Today , WA

VERY COOL!


T
Shopper Approved - Verified Customer thomas B.
Today , NY

quick and easy


G
Shopper Approved - Verified Customer George S.
1 day ago , CA

Worked ok


A
Shopper Approved - Verified Customer AJ L.
2 days ago , CA

They originally sent only one cooler istead of two but they overnighted the second one since they made the error.

Communication
5/5
3975986 Cummins Transmission Gear Cooler
3975986 Cummins Transmission Gear Cooler
Read more reviews about this product

2 days ago

Product looked to be of good quality for the price.

.


J
Shopper Approved - Verified Customer James M.
2 days ago , FL

Mr. Cool had the part that I needed and it was sent next day.

Communication
5/5
038300CN Westerbeke Heat Exchanger
038300CN Westerbeke Heat Exchanger
Read more reviews about this product

2 days ago

CUSTOMER CALLED AND SAID THAT HE DOESN'T NEED IT NOW AS HE IS GETTING A NEW GENERATOR.


W
Shopper Approved - Verified Customer Walter P.
2 days ago , FL

tanks for all

Communication
5/5
249929 Kohler Heat Exchanger
249929 Kohler Heat Exchanger
Read more reviews about this product

2 days ago

All ok


J
Shopper Approved - Verified Customer James P.
2 days ago , FL

Very friendly service and quality product!


M
Shopper Approved - Verified Customer Michael K.
2 days ago , SC

Quick and easy


R
Shopper Approved - Verified Customer Ryan W.
4 days ago , MI

Glad I found you, I will always come to you guys for any cooling parts I may need. Just wish the shipping would be less for us local Mi. Folks as I live like 40 minutes from where you guys are located.

Communication
0/5
99356A2 Mercruiser Power Steering Cooler
99356A2 Mercruiser Power Steering Cooler
Read more reviews about this product

4 days ago

I can’t say as to wether it fits as I have to installed it yet, or if it cools properly because it’s not installed and the boats out of the water for the rest of the year , and I never talked to a sales rep. BUT! I will say I know I have the correct part, so it should fit, everything looks well made so I’m assuming it will cool properly and I’m a prettier good sales rep and I’m confident the parts going to make me happy.


M
Shopper Approved - Verified Customer matthew T.
4 days ago , CA

Great product

Communication
5/5
3862629 Volvo Power Steering Cooler
3862629 Volvo Power Steering Cooler
Read more reviews about this product

4 days ago

Great product


J
Shopper Approved - Verified Customer James P.
5 days ago , FL

Very easy to order


T
Shopper Approved - Verified Customer Travis C.
5 days ago , MO

PAINLESS ONLINE SHOPPING


Z
Shopper Approved - Verified Customer Zenaida G.
5 days ago , FL

It was easygoing.


D
Shopper Approved - Verified Customer David B.
5 days ago , MO

Gentleman helped me identify right part and told which shipping method to get it when i needed it. What else can you ask for.


K
Shopper Approved - Verified Customer Kevin K.
6 days ago , PA

Great service, I haven't put the parts in, but they do appear to be a direct match. Can't wait to install them! I will pass this information onto everyone.


T
Shopper Approved - Verified Customer Tinsley S.
6 days ago , GA

Easy and Fast


B
Shopper Approved - Verified Customer Barry B.
6 days ago , NY

Simple and easy, support was great.


R
Shopper Approved - Verified Customer Russell C.
1 week ago , MI

Excellent and easy.


M
Shopper Approved - Verified Customer Marc N.
1 week ago , ID

Sales is very knowledgeable and quick to respond


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