Wiseco SK1385 Forged Piston Kit for Polaris Snowmobile

The Wiseco SK1385 is a premium forged piston kit engineered for Polaris snowmobile applications. Wiseco has spent decades developing forged snowmobile pistons in the USA, purpose-built to withstand the extreme demands of snocross and cross-country racing.

USA-Made Forged Construction:

• All pistons are forged entirely in-house at Wiseco's USA facility
• Forge tooling is designed and produced in-house, ensuring full manufacturing control
• Condensed, aligned grain structure delivers superior mechanical strength over cast alternatives
• Forged construction resists impact and fatigue that would cause cast pistons to fail catastrophically

Key Features:

• Optimized strength-to-weight ratio for maximum power output
• Skirt coating applied in-house for reduced friction and enhanced durability
• Developed with in-house dyno testing to validate performance gains
• Advanced piston shapes and coatings refined through rigorous R&D
• Engineered to exceed the performance limitations of OEM cast pistons

Compared to brittle cast pistons that lack defined grain structure, the SK1385 forging features condensed, feature-aligned grain that produces higher mechanical properties and resistance to the abuse of high-performance motorsport use. For serious Polaris snowmobile builds where reliability and performance are non-negotiable, the Wiseco SK1385 delivers proven, race-tested strength.