Name: Piston Kit 81-19 PW50 40.50, Wossner 8267D050 Yamaha
Brand: Wossner
SKU: 56-W938+050_WO

Piston Kit 81-19 PW50 40.50, Wossner 8267D050 Yamaha

Wossner
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Description

This Wossner forged piston kit is a +0.50mm oversize replacement for Yamaha PW50 models from 1981 to 1997. Engineered with precision and manufactured in Germany, it provides enhanced strength and consistent performance for two-stroke engine applications requiring a slightly larger bore size.

Features

Forged piston construction for superior strength and durability
Elliptical design ensures a consistent bearing surface during heat expansion
Promotes efficient heat dissipation to cylinder walls
Prevents localised stress and piston collapse
Manufactured in Germany

Specifications

Bore Size: 40.50mm
Actual Piston Size: 40.45mm
Stroke: 39.20mm
Piston Clearance: 0.05mm
Wossner Compression Ratio: 2-stroke
OEM Compression Ratio: 2-stroke
Compression Height: 24.90mm
Lock Part Number: CW10
Pin Part Number: WP105
Ring Set Part Number: RSB4050

Cross-Reference OEM Part Numbers

Part No: 8267D050

Vehicle Fitments

Yamaha PW50 (1981–1997)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	PW 50	1981-2016
YAMAHA	PW 50	1981-2020
YAMAHA	PW 50	1985-2017
YAMAHA	PW 50	1981-2019

Piston Kit 81-19 PW50 40.50, Wossner 8267D050 Yamaha

Wossner
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This Wossner forged piston kit is a +0.50mm oversize replacement for Yamaha PW50 models from 1981 to 1997. Engineered with... Read more

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SKU: 56-W938+050_WO

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Description

This Wossner forged piston kit is a +0.50mm oversize replacement for Yamaha PW50 models from 1981 to 1997. Engineered with precision and manufactured in Germany, it provides enhanced strength and consistent performance for two-stroke engine applications requiring a slightly larger bore size.

Features

Forged piston construction for superior strength and durability
Elliptical design ensures a consistent bearing surface during heat expansion
Promotes efficient heat dissipation to cylinder walls
Prevents localised stress and piston collapse
Manufactured in Germany

Specifications

Bore Size: 40.50mm
Actual Piston Size: 40.45mm
Stroke: 39.20mm
Piston Clearance: 0.05mm
Wossner Compression Ratio: 2-stroke
OEM Compression Ratio: 2-stroke
Compression Height: 24.90mm
Lock Part Number: CW10
Pin Part Number: WP105
Ring Set Part Number: RSB4050

Cross-Reference OEM Part Numbers

Part No: 8267D050

Vehicle Fitments

Yamaha PW50 (1981–1997)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	PW 50	1981-2016
YAMAHA	PW 50	1981-2020
YAMAHA	PW 50	1985-2017
YAMAHA	PW 50	1981-2019

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.