Manufactured by SPI
Pistons are for standard bore size 85.00mm
SPI pistons are engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls
All pistons, rings, pins and circlips are manufactured to OEM specifications
All individual components are interchangeable with original parts
Piston weight compatible with original piston
Contains all gaskets pictured to rebuild top end (oil seals not included)
Made in Taiwan
T-Moly series pistons additional benefits

Machined smooth heads
MOS2 (Teflon-molybdenum coating)
Hard anodized crowns
Hypereutectic cast


Fits the following models:

2000 Polaris 800 RMK

2001 Polaris 800 LE
2001 Polaris 800 RMK 144
2001 Polaris 800 RMK 151
2001 Polaris 800 RMK SP 144
2001 Polaris 800 RMK SP 151
2001 Polaris 800 XC SP

2002 Polaris 800 RMK 144 F/O
2002 Polaris 800 RMK 144 F/O Stock
2002 Polaris 800 RMK 151 F/O
2002 Polaris 800 RMK 151 F/O Stock
2002 Polaris 800 RMK 156 F/O
2002 Polaris 800 XC SP F/O
2002 Polaris 800 XC SP F/O M-10
2002 Polaris 800 XC SP Stock

2003 Polaris 800 Classic Touring
2003 Polaris 800 Pro X
2003 Polaris 800 RMK 144 F/O
2003 Polaris 800 RMK 144 Stock
2003 Polaris 800 RMK 151 F/O
2003 Polaris 800 RMK 151 Stock
2003 Polaris 800 RMK 159 F/O
2003 Polaris 800 RMK 159 Vertical Escape
2003 Polaris 800 XC SP Edge
2003 Polaris 800 XC SP Edge M-10 F/O
2003 Polaris 800 XC SP Edge X F/O
2003 Polaris 800 XC SP Edge X M-10 F/O

2004 Polaris 800 Classic
2004 Polaris 800 Classic Touring
2004 Polaris 800 Pro X
2004 Polaris 800 Pro XR
2004 Polaris 800 RMK
2004 Polaris 800 Switchback

2005 Polaris 800 Edge Touring
2005 Polaris 800 RMK
2005 Polaris 800 Switchback
2005 Polaris 800 XC SP Edge
2005 Polaris 800 XC SP M-10