UTV Belt Cooling

Keep Your CVT Belt Running Cool

Heat is the number one reason UTVs blow belts on the trail. The CVT belt in your machine runs under real stress: dunes, short course racing, higher HP flashes, and any riding where throttle position stays buried for long stretches push belt temps into territory where rubber starts to degrade fast. Once belt temps spike, you are on borrowed time until your next trailside fix. A good belt cooling system changes that math.

The products in this collection attack heat in two ways. Belt cooling fans actively push air through the CVT system using purpose-built blower kits designed for specific machines. The Razorback Technology belt cooling fan goes further, using built-in infrared sensors to read actual belt surface temps rather than air temps, so the fan runs at full power only when needed. The other approach uses spray-atomized coolant injected into the clutch housing. The Assault Industries Cobra Cooler works at the flip of a switch, dropping peak clutch housing temperatures by up to 50 degrees Fahrenheit over 45 seconds. We recommend operation when housing temperatures approach 195 degrees Fahrenheit, where belt rubber starts to take on permanent heat damage. Whether you are running a stock Polaris RZR XP or a vehicle with a high-HP tune, this kit is designed to extend belt life and cut down on unnecessary trailside fixes.

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FAQ 

What causes a UTV CVT belt to overheat?

Heat builds in the CVT system when the belt load stays high for extended periods. This happens during dune climbing, short course racing, in vehicles with higher HP tunes, and in any situation where the throttle stays wide open for long stretches. Dropping belt temps with a cooling system is the most direct fix.

What is the difference between a belt cooling fan and a spray coolant system?

A belt cooling fan blows air through the CVT housing to dissipate heat. A spray coolant system injects atomized coolant directly into the clutch housing for a fast, aggressive temperature drop. Both work well; the right choice depends on your machine and how hard you ride.

How much can a belt cooling system lower belt temps?

Results vary by product and riding conditions. The Assault Industries Cobra Cooler is rated to reduce clutch housing temps by up to 50 degrees Fahrenheit. The Razorback Technology fan uses infrared sensors to read true belt surface temps and runs at full power only when needed, keeping temps in check across sustained riding.

Does the Razorback Technology belt cooling fan work on my Polaris RZR?

The Razorback CVT fan kit is available for multiple fitments. Check the product listing for model-specific compatibility before ordering. It is the only belt cooling system in the industry with infrared technology that reads true belt surface temps, not just air temps. Note that it requires a Razorback 3.2 CVT temp gauge to operate.

Will a belt cooling system work with a tuned or high-HP machine?

Yes. Both the Razorback fan and the Assault Industries Cobra Cooler are designed to handle the added heat load that comes with higher HP setups. Check each product listing for fitment and compatibility with your specific tune level.

At what temperature should I run a belt cooling system?

Operation is recommended when clutch housing temps approach 195 degrees Fahrenheit, which is where belt rubber starts to take on permanent heat damage. The system injects a fine mist of distilled water into the clutch housing air intake tube over 45 seconds, then shuts off while temps recover.

Can belt cooling extend the life of a weaker OEM belt?

Keeping belt temps down slows the degradation of the rubber compound, which helps any belt last longer. That said, if you are running a high-HP machine or pushing hard in the dunes, pairing a belt cooling system with a performance CVT belt is the smarter long-term choice.