This is a "machine-selection optional" part.Please choose a vehicle to see products specific to your machine,select a product below.

Choose a vehicle:

User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.

» Log in to use your Rider Profile Machines

Cooling System Parts from Rocky Mountain ATV/MC

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

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

  • CV4 High Pressure Radiator Cap

    CV4 High Pressure Radiator Cap

    Benjamin in MO

    Good Cap

    This fit good and it works great.

    Read All Reviews
  • Boyesen Supercooler Water Pump Cover and Impeller Kit

    Boyesen Supercooler Water Pump Cover and Impeller Kit

    FREDRICK in WV

    Boyesen Supercooler water Pump

    A must have for all riders and racers that ride in extreme conditions. cooler motor will last longer. wouldn't try anything else.

    Read All Reviews
  • UM Performance Scoops

    UM Performance Scoops

    ANDREW in CO

    Bad Hardware ,Nice part..

    The part is awesome , but the hardware that came with it was horrible. The spacers were all cut uneven and had burrs all over. then nuts and bolts were just fine. there are three screws used on each side to mount and the middle screw is the only one that gets spaced out from the frame about 3/4" on 400ex.

    Read All Reviews
  • Tusk 1.6 High Pressure Radiator Cap

    Tusk 1.6 High Pressure Radiator Cap

    David in OR

    Good

    Helps with the boil off on my RMZ.

    Read All Reviews
  • CV4 Radiator Hose Kit

    CV4 Radiator Hose Kit

    jeromy in NE

    sent back. description vague

    The item description, for my particular sku, was poor. The hose quality apeared to be that of most any other silicone dress up kit but I was not happy because it didn't include the major restricted hose point on my machine & the website item description did not let me know that this was a thermostat bypass kit. TECH NOTE: PRODUCT INFO HAS BEEN UPDATED.

    Read All Reviews
  • Hot Rods Water Pump Repair Kit

    Hot Rods Water Pump Repair Kit

    Graeme in WA

    Bling Factor

    Not real shiny out of the pack but 5 mins with some aluminium polish & it's nice & sparkly. Fits well, tougher than OEM plastic rubbish & makes my mates with plastic ones jealous.

    Read All Reviews
Frequent Buyer ProgramParts Finder