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Cooling System Parts from Rocky Mountain ATV/MC

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

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

  • KTM Radiator Fan Kit

    KTM Radiator Fan Kit


    KTM Radiator Fan Kit

    I have lost no coolant since I put the fan on. It seems to come on when it is needed. It works like it should.

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  • 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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  • Polisport Radiator Louvers

    Polisport Radiator Louvers

    Tyler in ID

    Why not?

    look sweet! Plastic better than my oem Louvers. Glad I went with the red Louvers almost went with the black but the red stands out and looks good on the Honda

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  • KTM Aluminum Radiator Protection

    KTM Aluminum Radiator Protection

    ARTHUR in FL

    KTM Radiator braces

    These brackets are solid as a rock. A bit tricky to install but once they are on your radiator is surely protected. The stock radiator louvers will fit once the brace is installed, its really tight but they will go in there. Already had a fall with these braces installed and they are so strong that the plastic shroud broke on impact but the radiator is just fine. Worth the money IMO.

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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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