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PISTON KIT 80-82 YZ IT465 86.5, WOSSNER 8265D150 YAMAHA

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PISTON KIT 80-82 YZ IT465 86.5, WOSSNER 8265D150 YAMAHA

PISTON KIT 80-82 YZ IT465 86.5, WOSSNER 8265D150 YAMAHA

This Wossner piston kit features an 86.50mm bore size (86.42mm actual) and is designed for Yamaha YZ465 (1981ā€“1982) and IT465 (1980ā€“1981) models. Forged in Germany for strength and reliability, the piston is engineered with an elliptical profile that distributes thrust loads evenly during heat expansion, minimising localised pressure and reducing the risk of piston collapse.



Features





  • Forged construction for enhanced durability




  • Elliptical design supports uniform load distribution under thermal expansion




  • Optimised for efficient heat transfer to cylinder walls




  • Manufactured in Germany





Specifications





  • Bore Size: 86.50mm (86.42mm)




  • Display: 465 cmĀ³




  • 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: 8265D150




  • Lock: CW18




  • Pin: WP042




  • Ring Set: RSC8650




  • Part No.: 56-W551_1.50.WO





Vehicle Fitments





  • Yamaha YZ465 1981




  • Yamaha YZ465 1982




  • Yamaha IT465 1980




  • Yamaha IT465 1981



$380.10
PISTON KIT 80-82 YZ IT465 86.5, WOSSNER 8265D150 YAMAHAā€”
$380.10

Product Information

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Description

This Wossner piston kit features an 86.50mm bore size (86.42mm actual) and is designed for Yamaha YZ465 (1981ā€“1982) and IT465 (1980ā€“1981) models. Forged in Germany for strength and reliability, the piston is engineered with an elliptical profile that distributes thrust loads evenly during heat expansion, minimising localised pressure and reducing the risk of piston collapse.



Features





  • Forged construction for enhanced durability




  • Elliptical design supports uniform load distribution under thermal expansion




  • Optimised for efficient heat transfer to cylinder walls




  • Manufactured in Germany





Specifications





  • Bore Size: 86.50mm (86.42mm)




  • Display: 465 cmĀ³




  • 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: 8265D150




  • Lock: CW18




  • Pin: WP042




  • Ring Set: RSC8650




  • Part No.: 56-W551_1.50.WO





Vehicle Fitments





  • Yamaha YZ465 1981




  • Yamaha YZ465 1982




  • Yamaha IT465 1980




  • Yamaha IT465 1981



PISTON KIT 80-82 YZ IT465 86.5, WOSSNER 8265D150 YAMAHA | SMXOFFROAD Ltd