Wiseco Pistons 4671M07750 Compression ATV Piston Kit - 77.50mm 8.6 1

The Wiseco 4671M07750 is a high-performance forged piston kit engineered for demanding ATV applications. Featuring a 77.50mm bore diameter and 8.6:1 compression ratio, this precision-manufactured piston kit delivers the durability and strength needed for serious off-road riding.

Key Features:

• 77.50mm bore diameter for exact fitment
• 8.6:1 compression ratio optimized for performance and reliability
• Forged construction with aligned grain structure for superior strength
• In-house forging process ensures consistent quality control
• Optimized strength-to-weight ratio for maximum performance
• Complete kit includes piston, rings, wrist pin, and circlips
• Superior impact and fatigue resistance compared to cast pistons

Wiseco pistons are forged in the USA using proprietary tooling and manufacturing processes, ensuring every component meets the highest quality standards. The forging process creates a condensed grain structure aligned to the piston's features, resulting in exceptional mechanical properties and resistance to the extreme conditions of high-performance motorsport applications. Designed for Polaris Sportsman 500/HO (1996-2008), Scrambler 500 (1997-2008), and Magnum 500 (1996-2003) models.