Wossner Piston Kit, 94.98 mm for GasGas and Yamaha (8630DC)

Upgrade your engine with the Wossner 8630DC Piston Kit, engineered for select GasGas and Yamaha applications. This performance-focused piston kit is designed to support dependable engine operation, improved lubrication, reduced friction, and consistent ring sealing. Its lightweight construction and application-specific forging provide a strong replacement solution for riders and builders seeking reliable performance and efficient piston operation.
The piston features enhanced piston pin oiling slots, radial boss machining, and annular grooves to improve wrist pin lubrication. A tight piston wall clearance helps promote quieter engine operation, while the coated skirt reduces friction and supports improved break-in performance. The ring land treatment is designed to help maintain ring seal and improve oil control during operation.
Where specified by the application, the double-bridged forging design provides additional structural support while maintaining a performance-oriented piston profile. The kit includes the piston, piston rings, wrist pin, and pin locks, providing the essential components needed for installation. With its 94.98 mm piston size, Wossner part number 8630DC is a practical choice for compatible GasGas and Yamaha engine rebuilds, maintenance, and performance upgrades. Verify application compatibility and engine specifications before installation.

Features:

• Enhanced piston pin oiling slots, radial boss machining, and annular grooves improve wrist pin lubrication

• Lightweight piston design with tight piston wall clearance supports quieter engine operation

• Coated piston skirt reduces friction and promotes improved break-in performance

• Ring land treatment supports improved ring sealing and oil control

• Double-bridged forging design where specified for the application

• Kit includes piston, rings, wrist pin, and pin locks

• Piston size: 94.98 mm

• Brand: Wossner

• Part Number: 8630DC

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