Name: Piston Kit 80-82 YZ IT465 86.5, Wossner 8265D150 Yamaha
Brand: Wossner
SKU: 56-W551_1.50.WO

Piston Kit 80-82 YZ IT465 86.5, Wossner 8265D150 Yamaha

Wossner
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Description

This Wossner piston kit features an 86.50mm bore size (86.42mm actual) and is designed for Yamaha YZ465 (1981–1982) and IT465 (1980–1981) 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 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: 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

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 465	1980-1981
YAMAHA	IT 465	1981-1982

Piston Kit 80-82 YZ IT465 86.5, Wossner 8265D150 Yamaha

Wossner
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This Wossner piston kit features an 86.50mm bore size (86.42mm actual) and is designed for Yamaha YZ465 (1981–1982) and IT465... Read more

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SKU: 56-W551_1.50.WO

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Description

This Wossner piston kit features an 86.50mm bore size (86.42mm actual) and is designed for Yamaha YZ465 (1981–1982) and IT465 (1980–1981) 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 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: 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

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 465	1980-1981
YAMAHA	IT 465	1981-1982

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.