ProX pistons provide a reliable and cost-effective way to maintain the engine of your sled High-quality cast piston made with dedicated tooling and molding Made from hypereutectic alloy for extra strength and reduced expansion Special dual-ring setup for improved durability and resistance to wear Full MoS2 skirt coating for improved breaking in and resistance to scuffing Anodized piston dome for increased protection against excessive heat Usage of high-quality rings such as Riken for optimum heat transfer and sealing Packed in a box containing piston, rings, pin, clips and top-end bearing Please see pages 538-540 of the 2021 Parts Unlimited Snowmobile catalog for the complete line of ProX snowmobile pistons.
