SPI Fix Kit for 2013-2015 Polaris 800 Sleds 85mm Pistons, Bearings & Fix Kit Item Description Manufactured by SPI Includes 2 pistons, ring sets, wrist pins, circlips, bearings & fix kit (2 base gaskets, aluminum spacer, 8 extra long cylinder bolts and 2 dowel alignment pins) as pictured SPI pistons are engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls All SPI pistons, rings, pins, & circlips are manufactured to OEM specifications All individual components are interchangeable with original parts Piston weight is compatible with original piston T-Moly series with Teflon-Molybdenum coating T-Moly series pistons reduce friction, resist seizure, & improve durability Made in Taiwan Pistons are for standard bore size 85.00mm ***Dual ring design pistons*** Fits: 2013 Polaris 800 Pro RMK 155 2013 Polaris 800 Pro RMK 163 2013 Polaris 800 RMK 155 2013 Polaris 800 RMK Assault 155 2013 Polaris 800 Rush 2013 Polaris 800 Rush Pro-R 2013 Polaris 800 Switchback 2013 Polaris 800 Switchback Assault 144 2013 Polaris 800 Switchback Pro-R 2014 Polaris 800 Indy SP 2014 Polaris 800 Pro RMK 155 2014 Polaris 800 Pro RMK 163 2014 Polaris 800 RMK 155 2014 Polaris 800 RMK Assault 155 2014 Polaris 800 RMK Assault 163 2014 Polaris 800 Rush Pro-R 2014 Polaris 800 Switchback 2014 Polaris 800 Switchback Adventure 2014 Polaris 800 Switchback Assault 2014 Polaris 800 Switchback Pro-R 2015 Polaris 800 Indy SP 2015 Polaris 800 Pro RMK 155 2015 Polaris 800 Pro RMK 163 2015 Polaris 800 RMK 155 2015 Polaris 800 RMK 163 2015 Polaris 800 RMK Assault 155 2015 Polaris 800 Switchback Assault 144