Wiseco SK1394 Forged Snowmobile Piston Kit for Ski-Doo

The Wiseco SK1394 is a forged snowmobile piston kit engineered specifically for Ski-Doo applications. Built on decades of USA-based snowmobile piston development, this kit delivers the strength, precision, and reliability demanded by snocross racers and high-performance trail riders alike.

Wiseco forges all of its own pistons in-house and produces all forge tooling at its USA facility, allowing complete control over every stage of manufacturing — from raw aluminum alloy bar stock through final skirt coating. In-house dyno testing further drives continuous development of advanced piston shapes, coatings, and components.

Key Features:

• Pro-Lite forged 2-stroke piston — CNC machined for optimal cam shape and profile for peak horsepower and service life
• Aerospace-grade aluminum alloy — dedicated forgings provide a superior strength-to-weight ratio
• ArmorGlide skirt coating — reduces friction, improves wear resistance, and aids cold-start break-in
• Condensed, aligned grain structure — forgings deliver higher mechanical properties and superior resistance to impact and fatigue compared to cast pistons
• High-performance ring kit and alloy wrist pin included — matched components extend service life and maintain sustained power output
• Top-end gasket kit included — everything needed for a complete top-end rebuild in one kit
• Race-proven design — chosen by top race teams competing in snocross and cross-country events

Unlike brittle cast pistons that risk catastrophic failure when material yield strength is exceeded, Wiseco forgings are engineered to absorb the shock and thermal stress of extreme high-performance snowmobile operation. The SK1394 kit provides a convenient, one-stop solution for a complete and reliable top-end rebuild.