Name: Piston Kit 88-92 YZ80 49.50, Wossner 8187D150 Yamaha MX
Brand: Wossner
SKU: 56-W569+150.WO

Piston Kit 88-92 YZ80 49.50, Wossner 8187D150 Yamaha MX

Wossner
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Description

The Wossner 8187D150 piston kit is designed for Yamaha YZ80 models from 1988 to 1992, featuring a 49.50 mm bore for +1.50 mm oversize applications. Manufactured in Germany with a forged construction, this piston offers superior durability and thermal efficiency. The elliptical profile ensures even load distribution under heat expansion, reducing localised stress and preventing piston collapse. This complete kit includes all essential components for accurate and dependable engine restoration.

Features

Forged piston offers high strength and thermal performance
Optimised for effective heat dissipation from the combustion chamber
Elliptical design distributes thrust loads evenly during expansion
Prevents localised pressure buildup and reduces risk of failure
Precision-engineered and manufactured in Germany

Specifications

Bore Size: 49.50 mm
Actual Bore Diameter: 49.45 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: 8187D150
Lock: CW12
Pin: WP091
Ring Set: RSB4950
Part No.: 56-W569+150.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 49.50, Wossner 8187D150 Yamaha MX

Wossner
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The Wossner 8187D150 piston kit is designed for Yamaha YZ80 models from 1988 to 1992, featuring a 49.50 mm bore... Read more

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SKU: 56-W569+150.WO

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Description

The Wossner 8187D150 piston kit is designed for Yamaha YZ80 models from 1988 to 1992, featuring a 49.50 mm bore for +1.50 mm oversize applications. Manufactured in Germany with a forged construction, this piston offers superior durability and thermal efficiency. The elliptical profile ensures even load distribution under heat expansion, reducing localised stress and preventing piston collapse. This complete kit includes all essential components for accurate and dependable engine restoration.

Features

Forged piston offers high strength and thermal performance
Optimised for effective heat dissipation from the combustion chamber
Elliptical design distributes thrust loads evenly during expansion
Prevents localised pressure buildup and reduces risk of failure
Precision-engineered and manufactured in Germany

Specifications

Bore Size: 49.50 mm
Actual Bore Diameter: 49.45 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: 8187D150
Lock: CW12
Pin: WP091
Ring Set: RSB4950
Part No.: 56-W569+150.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.