Wiseco Pistons PK1563 ProLite Piston Kit 68mm for Yamaha YZ/WR250

The Wiseco ProLite PK1563 is a complete top-end piston kit engineered for 1992-1994 Yamaha YZ250 and WR250 two-stroke motorcycles. This 68mm bore kit delivers race-proven performance with a superior strength-to-weight ratio using aerospace-grade forging alloy.

Kit Includes:

• Dedicated forged ProLite piston with 68mm bore (677M)
• High-performance ring set for extended life and sustained power
• Premium top-end needle bearing with precision machining
• High-quality alloy wrist pin
• Complete Wiseco top-end gasket kit

Key Features:

• CNC-machined piston with optimal cam profile for peak horsepower
• Aerospace alloy construction for maximum durability and minimal weight
• Premium sealing technology exceeding OEM standards
• Race-proven design chosen by professional racing teams
• Precision-engineered components for reduced friction and longer service life

Wiseco's ProLite series offers serious off-road riders and racers the performance advantage of lighter reciprocating mass without sacrificing reliability. This complete kit provides everything needed for a professional-quality top-end rebuild.