Wiseco Forged Piston Kit 80.50 mm for Polaris Trail Boss350 1990–1993 639M08050

Wiseco 639M08050 is a piston kit for a 80.50 mm bore.

Wiseco catalogue applications

Specifications

• Manufacturer part number: 639M08050
• Product Series: 2 Stroke Forged Series
• Bore Diameter: 80.50 MM
• Piston Diameter: 80.42 MM
• Piston Oversize: 0.50 MM
• Piston Material: 4032
• Skirt Coating: No

Included components

Ring Set #3169TD, Piston pin #S278, Circlip #CW18.

Cylinder preparation

Wiseco specifies: Bore & Hone.

Select by the required finished cylinder bore. Bore diameter and piston diameter are different measurements.

Manufacturer photograph for this reference. Packaging presentation may change.