Wiseco PK1099 Forged Piston & Top End Kit 50.00mm for Suzuki LT80 / Kawasaki KFX80

The Wiseco PK1099 is a complete forged piston and top end kit designed for the Suzuki LT80 QuadSport and Kawasaki KFX80, featuring a 50.00mm (673M) bore diameter. This all-inclusive kit gives you everything needed to complete a proper top end rebuild in one convenient package.

Kit Includes:

• Forged piston — dedicated forging from aerospace-grade aluminum alloy for a superior strength-to-weight ratio
• Piston ring set — high-performance rings engineered for extended service life and sustained power output
• Wrist pin — precision-machined alloy pin for consistent, durable performance
• Wrist pin circlips — retention clips for secure piston pin installation
• Top end wrist pin needle bearing — premium-quality bearing for reduced friction and long service life
• Top end gasket kit — premium materials engineered to exceed OEM sealing standards

Piston Features:

• Forged from aerospace aluminum alloy for maximum strength and reliability
• Race-proven design trusted by top race teams across Supercross, Motocross, GNCC, and Superbike competition
• CNC machined to precise tolerances for optimal fit and performance
• Optimized cam shape and skirt profile for peak horsepower and extended service life
• USA-forged with in-house tooling for full manufacturing quality control

The Wiseco PK1099 is the standard 50.00mm bore size replacement for the LT80 and KFX80 engines. For overbore applications, Wiseco also offers this kit in 50.50mm, 51.00mm, and 52.00mm sizes. Wiseco part number cross-reference: 673M05000.