Wiseco GP Series Piston Kit 56.00 mm for Yamaha (900M05600)

Upgrade your Yamaha engine with the WISECO GP Series Piston Kit, part number 900M05600. Designed for endurance and high-rpm performance, this forged piston is engineered to deliver dependable operation under demanding conditions. The piston dome, ring groove, and wrist-pin bore feature electra-coating for enhanced wear resistance and protection against micro-welding, galling, and detonation. Its precision-focused construction supports consistent performance and long-term durability in high-performance applications.
The GP Series design generally uses less machining on the piston exterior, helping the piston seal the cylinder bore more effectively for increased compression potential. An ArmorGlide® skirt coating helps reduce friction and operating noise while supporting improved horsepower potential. This coating also contributes to smoother piston movement and reduced wear between the piston skirt and cylinder wall, making the kit a practical choice for performance-focused Yamaha engine builds.
Each WISECO 900M05600 piston kit includes the piston, piston ring or rings, wrist pin, and circlips required for installation. The component set is engineered, forged, and machined in the USA to meet the demands of riders and builders who require reliable fitment and performance from their engine hardware. Verify application compatibility and required clearances before installation to ensure proper assembly and piston-to-cylinder performance.

Features:

• 56.00 mm piston diameter for compatible Yamaha applications

• Electra-coated dome, ring groove, and wrist-pin bore for enhanced wear resistance

• Helps protect against micro-welding, galling, and detonation

• GP Series exterior design supports improved cylinder-bore sealing and compression potential

• ArmorGlide® skirt coating reduces friction and operating noise

• Supports increased horsepower potential in performance applications

• Kit includes piston, piston ring or rings, wrist pin, and circlips

• Forged and machined in the USA

Ships from Parts Unlimited.