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PISTON KIT 80-82 YZ IT465 85.0, WOSSNER 8265DA YAMAHA KIT
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PISTON KIT 80-82 YZ IT465 85.0, WOSSNER 8265DA YAMAHA KIT

PISTON KIT 80-82 YZ IT465 85.0, WOSSNER 8265DA YAMAHA KIT

$94.85

Original: $271.00

-65%
PISTON KIT 80-82 YZ IT465 85.0, WOSSNER 8265DA YAMAHA KIT—

$271.00

$94.85

The Story

This Wossner piston kit features an 85mm bore size (84.92mm actual) and is designed for Yamaha YZ465 (1981–1982) and IT465 (1980–1981) models. Forged in Germany, the piston is built for durability and thermal performance. The elliptical design ensures even load distribution under heat expansion, reducing localised stress and preventing piston collapse.



Features





  • Forged construction for enhanced durability




  • Elliptical shape provides uniform bearing surface under expansion




  • Designed for efficient heat transfer from combustion chamber to cylinder walls




  • Manufactured in Germany





Specifications





  • Bore Size: 85mm (84.92mm)




  • Display: 465 cm³




  • Stroke: 82.00 mm




  • Clearance: 0.08 mm




  • Compression Height: 40.00 mm




  • Compression Ratio: 2-stroke (Wossner and OEM)





Cross-Reference OEM Part Numbers





  • Piston Kit: 8265DA




  • Lock: CW18




  • Pin: WP042




  • Ring Set: RSC8500 x2




  • Part No.: 56-W551.A.WO





Vehicle Fitments





  • Yamaha YZ465 1981




  • Yamaha YZ465 1982




  • Yamaha IT465 1980




  • Yamaha IT465 1981



PISTON KIT 80-82 YZ IT465 85.0, WOSSNER 8265DA YAMAHA KIT - Image 2

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

PISTON KIT 80-82 YZ IT465 85.0, WOSSNER 8265DA YAMAHA KIT - Image 3

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

PISTON KIT 80-82 YZ IT465 85.0, WOSSNER 8265DA YAMAHA KIT - Image 4

Details & Craftsmanship

Every detail has been carefully considered to bring you the perfect product.

Description

This Wossner piston kit features an 85mm bore size (84.92mm actual) and is designed for Yamaha YZ465 (1981–1982) and IT465 (1980–1981) models. Forged in Germany, the piston is built for durability and thermal performance. The elliptical design ensures even load distribution under heat expansion, reducing localised stress and preventing piston collapse.



Features





  • Forged construction for enhanced durability




  • Elliptical shape provides uniform bearing surface under expansion




  • Designed for efficient heat transfer from combustion chamber to cylinder walls




  • Manufactured in Germany





Specifications





  • Bore Size: 85mm (84.92mm)




  • Display: 465 cm³




  • Stroke: 82.00 mm




  • Clearance: 0.08 mm




  • Compression Height: 40.00 mm




  • Compression Ratio: 2-stroke (Wossner and OEM)





Cross-Reference OEM Part Numbers





  • Piston Kit: 8265DA




  • Lock: CW18




  • Pin: WP042




  • Ring Set: RSC8500 x2




  • Part No.: 56-W551.A.WO





Vehicle Fitments





  • Yamaha YZ465 1981




  • Yamaha YZ465 1982




  • Yamaha IT465 1980




  • Yamaha IT465 1981