Name: Piston Kit 83-87 YZ250 68.00, Wossner 8133DA Yamaha MX 39X-11630-00-00
Brand: Wossner
SKU: 56-W560+000.WO

Piston Kit 83-87 YZ250 68.00, Wossner 8133DA Yamaha MX 39X-11630-00-00

Wossner
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Description

This Wossner 68.00mm standard size forged piston kit is designed for Yamaha YZ250 models from 1983 to 1987. Manufactured in Germany, it features a high-strength forged construction and an elliptical piston design to ensure uniform load distribution during heat expansion, reduce localised stress, and promote consistent engine performance. The piston supports efficient thermal transfer from the combustion chamber to the cylinder walls, making it suitable for demanding two-stroke applications.

Features

Forged piston for high durability and structural strength
Elliptical design maintains a uniform bearing surface under thermal expansion
Distributes thrust loads evenly to minimise stress and prevent piston collapse
Optimised for efficient heat transfer from combustion chamber to cylinder walls
Manufactured in Germany

Specifications

Bore: 68.00mm
Actual diameter: 67.94mm
Displacement: 246 cm³
Stroke: 68.00mm
Clearance: 0.06mm
Compression height: 36.00mm
Compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

Piston Kit Part No.: 56-W560+000.WO
Wossner Piston Kit No.: 8133DA
Lock: CW18
Pin: WP033
Ring Set: RSB6800 x2
Rod: P2048 (for 1983–1989 models)
Cross-reference numbers: 39X-11630-00-00, 560M06800

Vehicle Fitments

Yamaha YZ250 1983
Yamaha YZ250 1984
Yamaha YZ250 1985
Yamaha YZ250 1986
Yamaha YZ250 1987

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 250	1983-1987

Piston Kit 83-87 YZ250 68.00, Wossner 8133DA Yamaha MX 39X-11630-00-00

Wossner
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This Wossner 68.00mm standard size forged piston kit is designed for Yamaha YZ250 models from 1983 to 1987. Manufactured in... Read more

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SKU: 56-W560+000.WO

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Description

This Wossner 68.00mm standard size forged piston kit is designed for Yamaha YZ250 models from 1983 to 1987. Manufactured in Germany, it features a high-strength forged construction and an elliptical piston design to ensure uniform load distribution during heat expansion, reduce localised stress, and promote consistent engine performance. The piston supports efficient thermal transfer from the combustion chamber to the cylinder walls, making it suitable for demanding two-stroke applications.

Features

Forged piston for high durability and structural strength
Elliptical design maintains a uniform bearing surface under thermal expansion
Distributes thrust loads evenly to minimise stress and prevent piston collapse
Optimised for efficient heat transfer from combustion chamber to cylinder walls
Manufactured in Germany

Specifications

Bore: 68.00mm
Actual diameter: 67.94mm
Displacement: 246 cm³
Stroke: 68.00mm
Clearance: 0.06mm
Compression height: 36.00mm
Compression ratio: 2-stroke

Cross-Reference OEM Part Numbers

Piston Kit Part No.: 56-W560+000.WO
Wossner Piston Kit No.: 8133DA
Lock: CW18
Pin: WP033
Ring Set: RSB6800 x2
Rod: P2048 (for 1983–1989 models)
Cross-reference numbers: 39X-11630-00-00, 560M06800

Vehicle Fitments

Yamaha YZ250 1983
Yamaha YZ250 1984
Yamaha YZ250 1985
Yamaha YZ250 1986
Yamaha YZ250 1987

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 250	1983-1987

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.