Yamaha Motor Co., Ltd. 39X-11630-10-00 Engine Piston Kit

The Yamaha 39X-11630-10-00 Engine Piston Kit is an OEM-replacement set for Yamaha motorcycles, delivering a complete piston assembly that converts combustion energy into mechanical motion within the engine's combustion system. It combines an aluminum alloy piston with steel components for strength and thermal stability and is designed for high-temperature operation to maintain compression and power output across engine cycles. The kit includes the piston, rings, pin, and clips in OEM configuration to ensure proper fit and reliable sealing, with standard or specified sizes that are model-dependent. This piston kit is intended for motorcycle engine rebuilds and maintenance projects to restore engine performance, maintain compression integrity, and support long-term reliability. Specifications: Manufacturer Part Number 39X-11630-10-00; Brand Yamaha; Product Type Piston Kit; Material aluminum alloy piston with steel components; System Engine combustion system; Compatibility Yamaha motorcycles (model-specific fitment).