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Cooling System Parts from Rocky Mountain ATV/MC

We carry all the parts you need for your cooling systems.

Latest Dual Sport Cooling System Parts Reviews – You could win up to $500 for reviewing products!

  • CV4 High Pressure Radiator Cap

    CV4 High Pressure Radiator Cap

    Branden in PA

    Works as designed, keeps engine running optimally

    BUYER TAKE NOTE: make sure you know what the pressure range is for your cooling system. If you raise the pressure too high, you could damage every downstream component (water pump, thermostat, hoses, etc.). The 2014-15 Honda Rancher is rate between 15-20 PSI (1.1 - 1.4 bar). Going any higher is dangerous and could void your warranty if you blow the cooling system due to high pressures. I bought the 1.4 bar CV4 cap because that's still within the pressure range for my ATV (20 PSI). Couple this cap with Engine Ice coolant, and my ATV never goes above 2 bars on the temperature gauge. None of this makes the engine run colder - that's dangerous - but it does enable it to run at the optimal temperature consistently across various types of riding. I ride on trails that don't allow high speeds, so the radiator fan used to come on all the time and the temperature would spike. Now, it runs very efficiently. Well worth the small cost. Make sure you do your research before putting a high pressure cap on your ATV. Higher pressure isn't always better, even if it does prevent "boil over."

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  • Tusk In Line Water Cooler

    Tusk In Line Water Cooler

    Branden in PA

    Not sure if it works, but installs easily!

    An inline water cooler like this maybe gives more peace of mind than anything else because I have no way of measuring whether or not it's actually dissipating heat efficiently. But my wife's smaller 271cc liquid-cooled engine works very hard when we're on the trails, and I wanted to make sure she had every advantage in cooling possible. Hoping this isn't just a gimmick product, but it's well-made, inexpensive, and can't hurt the engine any. :)

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  • Devol Extreme Radiator Guards

    Devol Extreme Radiator Guards

    Daniel in MT

    Great Guards

    I run them on two bikes and will run the again on future bikes.

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  • Watt-Man Thermo-Bob 2

    Watt-Man Thermo-Bob 2

    jeff in OR

    best product ever purchased

    the quality of this unit is top notch . looks like it was made one off just for me. the parts were wrapped in news paper from Arizona bonus reading material haha. installed in about an hour most of that was taking plastics and tank off. temp is now constant about 190 ish liked it so much bought the wattman temp overlay 2 days later

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  • Trail Tech Digital Radiator Fan Kit

    Trail Tech Digital Radiator Fan Kit

    Mark in TX

    Awesome product

    Install takes less than 30 minutes and is super easy. Product works great and is adjustable with ease. Well thought out product and well worth the cost.

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  • Tusk 1.6 High Pressure Radiator Cap

    Tusk 1.6 High Pressure Radiator Cap

    Tyler in OH

    kept my bike from boiling over

    just like the CV4 cap, just a different sticker on top :)

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