The Original Fan Assisted Oil Cooler

Drop your motorcycle oil temp up to 50° and save your bike from over heating!

Very happy with your product and the installation was very easy. Would strongly suggest this cooler for anybody in hot conditions! – Steve


Downtube Side Mount:
Touring 1994-2016

Dyna 1990-2017, Softail 1985-2017
Side Mount: Sportster 2004-2017,
M8 Touring 2017-Current,
M8 Softail 2018-Current

Call to Order!

How It Works

Watch the video to see how our cooler works.

Do You Really Know How Hot Your Bike Is Running?! If you don’t have an oil temperature gauge on your bike, how do you know how hot your oil is?

Harley Davidson Oil Cooler

Choose your Harley Davidson Oil Cooler.

Shop FLH

Shop Dyna

Shop Softail

Shop Trike

Latest News

Buying a Brand New Harley Davidson Vs. Buying Used

Buying a Brand New Harley Davidson Vs. Buying Used

Harley riders know that there is nothing quite like the feeling of that V-Twin growling between your legs. Harley Davidson has developed a cult following for a myriad of reasons, one being that characteristic roar we have all grown to love. After spending...

read more
Harley Davidson Twin Cam Engine Problems? What To Do!

Harley Davidson Twin Cam Engine Problems? What To Do!

We know you love your Harley Davidson motorcycle. I mean, who doesn’t? The unique style of customization and that sense of confidence you get whenever you’re driving one is something we all need once in a while. But, as loyal followers of the brand, you...

read more
A Weekend Guide to Street Vibrations

A Weekend Guide to Street Vibrations

Street Vibrations Fall Rally is an experience in and of itself, with music, motorcycles, live entertainment, and stunt shows. This is a great way to cap off a great riding season and its only minutes from UltraCool Headquarters! With locations throughout the Reno NV...

read more

Introducing UltraCool Rewards! Get 3% Back in Rewards

Harley® Oil Cooler & Motorcycle Oil Cooler Systems

Welcome to a new generation of Harley Davidson oil coolers. The latest innovation for your Harley-Davidson® and V-twin motorcycles. Whether you’re traveling the back roads of America, stuck in a traffic jam, or just cruising the city streets, oil temperature is a constant threat to the rider and engine safety. We help this issue by keeping your engine oil flow running cooler with the best motorcycle parts in the USA, while adding comfort and safety to your ride. Welcome to the UltraCool Reefer® Oil Cooling System.