Wiseco PK1622 Pro-Lite Top End Piston Kit for Kawasaki - 68.5mm KX250

The Wiseco PK1622 is a complete Pro-Lite top end piston kit designed for the 1990–1991 Kawasaki KX250 2-stroke dirt bike. This kit features a 68.50mm bore diameter (+1.10mm overbore) forged piston, making it an ideal solution for cylinder rebuilds or overbore applications on worn or damaged top ends.

Wiseco Pro-Lite Series: The Pro-Lite line represents decades of 2-stroke piston engineering expertise. These pistons are CNC machined for optimal cam shape and profile, delivering peak horsepower and extended service life across all riding conditions.

Kit Contents:

• Forged Pro-Lite piston (68.50mm bore)
• Piston ring(s)
• Wrist pin
• Circlips (pin locks)
• Top end gasket set

Key Features:

• Forged from high-silicon, low-expansion aluminum for superior strength, reduced weight, and improved heat transfer
• CNC diamond-turned finish ensures precise sizing with no variation
• Horizontal slot-pin oiling reduces friction and provides scuff resistance
• Pressure seal groove design promotes maximum ring seal
• Compatible with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions
• Engineered, forged, and machined in the USA

The Wiseco PK1622 is a trusted choice for motocross riders and mechanics seeking a reliable, performance-grade top end rebuild solution for the 1990–1991 KX250 2-stroke engine.