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

Please select make, model and year


Dirt Bike Piston Kits

Pistons are constantly in motion, providing power to your dirt bike. But with the wear and tear of high RPMs, they can really take a beating and eventually wear out. Take good care of your bike by replacing worn out pistons, keeping your bike fresh. We stock a variety of excellent dirt bike pistons at the best prices. We carry many of the most popular dirt bike piston brands. Are you looking for Wiseco pistons? No problem. Vertex or Pro X? We’ve got those too!

If you just need a few replacement parts, we carry circlips, piston rings and wrist pins. Or we have complete dirt bike piston kits, from ProX to Wiseco. We even have high compression kits available for some bikes. (If you’d rather stick with the original stock components, take a look at our OEM parts.) Don’t let piston problems ruin your off-road fun. When you need a new dirt bike piston, nobody beats Rocky Mountain ATV/MC!

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

  • Vertex Piston Kit Standard

    Vertex Piston Kit Standard

    Ryan in Pennsylvania

    Number one choice for pistons

    I've used Vertex piston kits in almost everything I have rebuild. Probably the best piston on the mark. Never had a problem with fitting issues, they last long beyond their expected life span. Best piston you can get for your vehicle. Highly recommended!

    Read All Reviews
  • Pro X Piston Kit

    Pro X Piston Kit

    CASEY in UT

    so far so good I hope

    I replaced the piston and honed the cylinder and the cylinder is in spec but we are using a little oil. Hope it is just because it needs the rings to seat. got my fingers crossed if it does not I will update my review

    Read All Reviews
  • Wiseco Piston Wristpin Bearing

    Wiseco Piston Wristpin Bearing

    SCOTT in TX

    Good quality

    Fit perfectly

    Read All Reviews
  • Wiseco Piston Kit

    Wiseco Piston Kit

    SCOTT in TX

    Better than oem

    Very nice quality

    Read All Reviews
  • Pro X Piston Replacement Circlip

    Pro X Piston Replacement Circlip

    Travis in TX

    works great

    Fit just fine

    Read All Reviews
  • Wiseco Piston Replacement Circlip

    Wiseco Piston Replacement Circlip

    Mike in NY

    Cant beat the price.

    I am in and out of these motors ALLOT and I have a stock pile of these. You should never re use a circlip and for how cheap they are there is no excuse not to replace them. Don't buy just 1 or 2 get a half dozen, sometimes they get lost and its better to have on hand than to have to reorder because you lost one.

    Read All Reviews
Frequent Buyer ProgramParts Finder