Wiseco PK1540 Pro-Lite Top End Piston Kit Bore - 2-Stroke 69mm

The Wiseco PK1540 is a complete Pro-Lite 2-stroke top end piston kit designed for the 1988–1992 Suzuki LT250 ATV. With a 69.00mm bore diameter (571M), this kit includes everything needed to overbore or rebuild your top end in a single purchase — no hunting down individual components.

Key Features:

• Forged Pro-Lite piston — CNC-machined for optimal cam shape and profile, delivering peak horsepower and extended service life
• Forged construction — stronger and more durable than cast alternatives, with condensed grain structure aligned to part features for superior impact and fatigue resistance
• Complete kit contents — includes forged piston, piston rings, wrist pin, circlips, and a top end gasket set
• 69.00mm bore diameter — Wiseco part code 571M, an overbore size for the Suzuki LT250 2-stroke engine
• In-house forged and machined — all pistons are forged and finished at Wiseco's own U.S. manufacturing facility for full quality control from raw material to finished part
• Race-proven design — trusted by top race teams across motocross, supercross, GNCC, and ATV racing disciplines

Wiseco's Pro-Lite top end kits are engineered for powersports enthusiasts who demand performance and reliability from their rebuild. Part Number: PK1540 | Bore: 69.00mm | Wiseco Code: 571M