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Wiseco Forged Piston Kit 89.00 mm for Yamaha IT490 1983–1984 478M08900

Wiseco Forged Piston Kit 89.00 mm for Yamaha IT490 1983–1984 478M08900

£190.59 GBP
£190.59 GBP
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Wiseco 478M08900 is a piston kit for a 89.00 mm bore.

Wiseco catalogue applications

Make Model Years
Yamaha IT490 1983–1984
Yamaha YZ490 1982–1983

Specifications

  • Manufacturer part number: 478M08900
  • Product Series: 2 Stroke Forged Series
  • Bore Diameter: 89.00 MM
  • Piston Diameter: 88.92 MM
  • Piston Oversize: 2.00 MM
  • Piston Material: 4032
  • Skirt Coating: No

Included components

Ring Set #3504TD, Piston pin #S277, 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.

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