Wiseco 2282M06950 Forged Piston Kit 69.50mm +1mm Oversize Yamaha SRX 440 / SSR440 LC 1978-1980

The Wiseco 2282M06950 is a high-performance forged piston kit designed as a +1mm oversize (69.50mm bore) replacement for the Yamaha SRX 440 and SSR440 LC snowmobiles from 1978 to 1980. Cross-reference number: 2736CS.

Kit Includes:

• Forged piston
• Rings
• Wrist pin
• Circlips

Key Features:

• Aerospace-grade forged aluminum alloy construction for a superior strength-to-weight ratio
• Dedicated forging design — not a modified cast piston — engineered specifically for this application
• Forged grain structure aligned to part features for improved mechanical properties, impact resistance, and fatigue resistance
• Optimized piston skirt profile maximizes horsepower and torque output
• Manufactured and forge-tooled entirely in the USA
• Developed and validated using Wiseco's in-house dynamometer testing program

Specifications:

• Piston Diameter: 69.50mm (+1mm oversize)
• Oversize Code: M06950
• Cross Reference: 2736CS

As an oversize piston, installation requires cylinder boring or re-sleeving to match the 69.50mm bore diameter. Wiseco forged pistons deliver the strength and durability demanded by high-performance and racing snowmobile applications where cast pistons are prone to failure.