90-'92 for Polaris 650 RXL SP1 Piston T-Moly Pol Pattern on tread base sheds

Pattern on tread base sheds mud and sand to prevent packing in loose and wet conditions

MPN: 51-131023

The Dirt Tricks Timing Chain Tensioner resolves issues with a slack timing chain on the new 4-stroke motors

Has replaceable integrated plastic abrasion guard

MPN: 12168

90-'92 for Polaris 650 RXL SP1 Piston T-Moly Pol Pattern on tread base shedsManufacturer: SPI MPN: 09 713 Title: T Moly Series Piston Kit Size: Standard Bore 67. 75mm Option: Color: Includes: 1 piston 1 ring set 1 wrist pin and 1 circlip set 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 original equipment specifications All individual components are interchangeable with original parts Piston weight compatible with