Wiseco PK1075 66.50mm Piston for 1985-1986 Honda ATC250R and TRX250R

Upgrade your 1985-1986 Honda ATC250R or TRX250R with the Wiseco PK1075 piston, engineered for dependable performance in demanding two-stroke applications. This replacement piston features a 66.50 mm bore size and is designed to support consistent operation, responsive power delivery, and reliable service when properly matched to the engine and related components.
Wiseco is recognized for producing high-quality performance engine components, and the PK1075 piston is suited for riders, mechanics, and powersports enthusiasts maintaining or rebuilding compatible Honda engines. Its application-specific design helps provide a proper fit for the listed ATC250R and TRX250R models, making it a practical choice for restoration, repair, or performance-oriented engine work.
Before installation, verify the year, model, bore specification, and required piston-to-cylinder clearance against your engine manufacturer’s service information. Professional installation and appropriate inspection of the cylinder, rings, wrist pin, circlips, and related components are recommended to help ensure correct operation. The Wiseco PK1075 is supplied as an individual piston unit for compatible Honda applications.

Features:

• Brand: Wiseco

• Part Number: PK1075

• Application: 1985-1986 Honda ATC250R and TRX250R

• Piston Bore Size: 66.50 mm

• Piston Type: Replacement performance piston

• Quantity: One piston