Name: Piston Kit 83-87 YZ250 68.75, Wossner 8133D075 Yamaha MX
Brand: Wossner
SKU: 56-W560+075.WO

Piston Kit 83-87 YZ250 68.75, Wossner 8133D075 Yamaha MX

Wossner
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Description

This Wossner 68.75mm (+0.75 oversize) forged piston kit is built for Yamaha YZ250 models from 1983 to 1987. Manufactured in Germany, the piston is forged to deliver superior strength and longevity. Its elliptical design ensures an even bearing surface during thermal expansion, helping to distribute thrust loads uniformly and avoid localised pressure that can lead to piston collapse. It is specifically designed for effective heat dissipation from the combustion chamber to the cylinder walls, making it ideal for demanding two-stroke engine performance.

Features

Forged piston for high durability and strength
Elliptical design maintains uniform bearing surface under thermal expansion
Reduces localised stress and evenly distributes thrust loads
Optimised for efficient heat transfer from combustion chamber to cylinder walls
Manufactured in Germany

Specifications

Bore: 68.75mm
Actual diameter: 68.69mm
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+075.WO
Wossner Piston Kit No.: 8133D075
Lock: CW18
Pin: WP033
Ring Set: RSB6875 x2
Rod: P2048 (for 1983–1989 models)

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 68.75, Wossner 8133D075 Yamaha MX

Wossner
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This Wossner 68.75mm (+0.75 oversize) forged piston kit is built for Yamaha YZ250 models from 1983 to 1987. Manufactured in... Read more

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SKU: 56-W560+075.WO

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Description

This Wossner 68.75mm (+0.75 oversize) forged piston kit is built for Yamaha YZ250 models from 1983 to 1987. Manufactured in Germany, the piston is forged to deliver superior strength and longevity. Its elliptical design ensures an even bearing surface during thermal expansion, helping to distribute thrust loads uniformly and avoid localised pressure that can lead to piston collapse. It is specifically designed for effective heat dissipation from the combustion chamber to the cylinder walls, making it ideal for demanding two-stroke engine performance.

Features

Forged piston for high durability and strength
Elliptical design maintains uniform bearing surface under thermal expansion
Reduces localised stress and evenly distributes thrust loads
Optimised for efficient heat transfer from combustion chamber to cylinder walls
Manufactured in Germany

Specifications

Bore: 68.75mm
Actual diameter: 68.69mm
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+075.WO
Wossner Piston Kit No.: 8133D075
Lock: CW18
Pin: WP033
Ring Set: RSB6875 x2
Rod: P2048 (for 1983–1989 models)

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.