Name: Piston Kit 88-92 YZ80 50.00, Wossner 8187D200 Yamaha MX
Brand: Wossner
SKU: 56-W569+200.WO

Piston Kit 88-92 YZ80 50.00, Wossner 8187D200 Yamaha MX

Wossner
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Description

he Wossner 8187D200 piston kit is engineered for Yamaha YZ80 models from 1988 to 1992, featuring a 50.00 mm bore for +2.00 mm oversize applications. Manufactured in Germany with a forged construction, this piston is built for strength and efficient heat dissipation. The elliptical design ensures an even load distribution under thermal expansion, minimising localised stress and reducing the risk of piston collapse. The kit includes all essential components for a complete engine rebuild.

Features

Forged piston ensures high strength and thermal stability
Designed for optimal heat transfer from combustion chamber to cylinder wall
Elliptical profile evenly distributes thrust loads during expansion
Minimises localised stress to help prevent piston failure
Manufactured in Germany for consistent quality

Specifications

Bore Size: 50.00 mm
Actual Bore Diameter: 49.95 mm
Stroke: 45.60 mm
Display Displacement: 82 cm³
Clearance: 0.05 mm
Compression Ratio (Wossner and OEM): 2-stroke
Compression Height: 27.00 mm

Cross-Reference Wossner Part Numbers

Piston Kit: 8187D200
Lock: CW12
Pin: WP091
Ring Set: RSB5000
Part No.: 56-W569+200.WO

Vehicle Fitments

Yamaha YZ80 (1988–1992)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 80	1988-1992

Piston Kit 88-92 YZ80 50.00, Wossner 8187D200 Yamaha MX

Wossner
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he Wossner 8187D200 piston kit is engineered for Yamaha YZ80 models from 1988 to 1992, featuring a 50.00 mm bore... Read more

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SKU: 56-W569+200.WO

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Description

he Wossner 8187D200 piston kit is engineered for Yamaha YZ80 models from 1988 to 1992, featuring a 50.00 mm bore for +2.00 mm oversize applications. Manufactured in Germany with a forged construction, this piston is built for strength and efficient heat dissipation. The elliptical design ensures an even load distribution under thermal expansion, minimising localised stress and reducing the risk of piston collapse. The kit includes all essential components for a complete engine rebuild.

Features

Forged piston ensures high strength and thermal stability
Designed for optimal heat transfer from combustion chamber to cylinder wall
Elliptical profile evenly distributes thrust loads during expansion
Minimises localised stress to help prevent piston failure
Manufactured in Germany for consistent quality

Specifications

Bore Size: 50.00 mm
Actual Bore Diameter: 49.95 mm
Stroke: 45.60 mm
Display Displacement: 82 cm³
Clearance: 0.05 mm
Compression Ratio (Wossner and OEM): 2-stroke
Compression Height: 27.00 mm

Cross-Reference Wossner Part Numbers

Piston Kit: 8187D200
Lock: CW12
Pin: WP091
Ring Set: RSB5000
Part No.: 56-W569+200.WO

Vehicle Fitments

Yamaha YZ80 (1988–1992)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 80	1988-1992

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.