New Polaris 85mm SPI STD bore pistons, replacement wrist pin bearings and HPR top end gasket set for Polaris 800 2015-2017 AXYS snowmobile models.

Comes with everything you see here! No cylinder included in this listing.

Fits the Following Machines:
  • 2016    800 AXYS PRO RMK/LE 155 ALL OPTIONS
  • 2016    800 AXYS PRO RMK/LE 163 ALL OPTIONS
  • 2017    800 AXYS PRO RMK 163 ALL OPTIONS
  • 2017    800 AXYS PRO RMK 174 ALL OPTIONS
  • 2017    800 AXYS PRO RMK/LE 155 ALL OPTIONS
  • 2017    800 AXYS RMK ASSAULT 155 ALL OPTIONS
  • 2016    800 AXYS SKS 155 ALL OPTIONS
  • 2017    800 AXYS SKS 155 ALL OPTIONS
  • 2016    800 RMK ASSAULT 155 ALL OPTIONS
  • 2015    800 RUSH PRO S ALL
  • 2016    800 RUSH PRO S ALL 
  • 2017    800 RUSH PRO S ALL 
  • 2015    800 RUSH PRO X ALL 
  • 2016    800 RUSH PRO X ALL 
  • 2017    800 RUSH PRO X SC
  • 2017    800 RUSH XCR
  • 2016    800 SWITCHBACK ADVENTURE
  • 2017    800 SWITCHBACK ADVENTURE
  • 2017    800 SWITCHBACK ASSAULT 144 ALL 
  • 2015    800 SWITCHBACK PRO S ALL OPTIONS
  • 2016    800 SWITCHBACK PRO S ALL OPTIONS
  • 2017    800 SWITCHBACK PRO S ALL OPTIONS
  • 2015    800 SWITCHBACK PRO X ALL OPTIONS
  • 2016    800 SWITCHBACK PRO X ALL OPTIONS
  • 2017    800 SWITCHBACK PRO X ALL OPTIONS

We do our best to provide you with accurate, well-researched vehicle fitment and compatibility but we're not perfect. 

Study these images carefully. Please make sure that your pistons have enough unique visual identifiers to make an educated purchase. We're not responsible for purchases made in error. 

Please message us directly or call us if you're unsure of this listing or need help finding the right parts for your ride. We’re open M-F, 9am to 5pm MST. 

Restocking Fee:
In the event that you order the wrong part for your machine and it ships, or if you are making a return, there is a %15 restocking fee to account for inconvenience and labor. The item must be un-used and in original packaging/condition. You will be responsible for paying your own return shipping cost as well as the cost of shipping out another part (if you are making an exchange). If your return or exchange is due to an error on our part, we cover those costs.

Expedited shipping options are available at checkout

Message us if you have any questions!

***Please double check fitment!! We are not responsible for incorrectly placed orders***