Wiseco Forged Piston Kit 74.00 mm 9.5:1 CR for Yamaha XT250 2013–2023 40078M07400

Wiseco 40078M07400 is a piston kit for a 74.00 mm bore.

Wiseco catalogue applications

Specifications

• Manufacturer part number: 40078M07400
• Product Series: 4 Stroke Forged Series
• Bore Diameter: 74.00 MM
• Piston Diameter: 73.95 MM
• Piston Oversize: STD
• Piston Material: 2618
• Skirt Coating: Yes
• Compression Ratio Actual: 9.5:1

Included components

Ring Set #2913XA, Piston pin #S688, Circlip #CW17.

Cylinder preparation

Wiseco specifies: Deglaze / Hone.

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