Name: Piston Kit 1983 &85 YZ125 57mm, Wossner 8119D100 Yamaha
Brand: Wossner
SKU: 56-W503+100.WO

Piston Kit 1983 &85 YZ125 57mm, Wossner 8119D100 Yamaha

Wossner
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Description

This Wossner forged piston kit features a 57mm bore (56.94mm) and is designed for use in the Yamaha YZ125 models from 1983 and 1985. Manufactured in Germany, this piston is engineered for improved heat transfer, uniform bearing surface, and even thrust load distribution, reducing the risk of piston collapse under high-performance conditions.

Features

Forged piston construction for superior strength
Engineered for optimal combustion chamber heat transfer
Elliptical design ensures uniform bearing surface under heat expansion
Made in Germany

Specifications

Bore size: 57mm (56.94mm)
Display volume: 83 cm³
Stroke: 84.00 mm
Clearance: 0.06 mm
Compression height: 30.80 mm
Theoretical weight: Not specified
Compression ratio: 2-stroke (Wossner and OEM)

Cross-Reference OEM Part Numbers

Piston: 8119D100
Lock: CW16
Pin: WP036
Ring Set: RSB5700

Vehicle Fitments

Yamaha YZ125 1983
Yamaha YZ125 1985

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 125	1985
YAMAHA	YZ 125	1983

Piston Kit 1983 &85 YZ125 57mm, Wossner 8119D100 Yamaha

Wossner
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This Wossner forged piston kit features a 57mm bore (56.94mm) and is designed for use in the Yamaha YZ125 models... Read more

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SKU: 56-W503+100.WO

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Description

This Wossner forged piston kit features a 57mm bore (56.94mm) and is designed for use in the Yamaha YZ125 models from 1983 and 1985. Manufactured in Germany, this piston is engineered for improved heat transfer, uniform bearing surface, and even thrust load distribution, reducing the risk of piston collapse under high-performance conditions.

Features

Forged piston construction for superior strength
Engineered for optimal combustion chamber heat transfer
Elliptical design ensures uniform bearing surface under heat expansion
Made in Germany

Specifications

Bore size: 57mm (56.94mm)
Display volume: 83 cm³
Stroke: 84.00 mm
Clearance: 0.06 mm
Compression height: 30.80 mm
Theoretical weight: Not specified
Compression ratio: 2-stroke (Wossner and OEM)

Cross-Reference OEM Part Numbers

Piston: 8119D100
Lock: CW16
Pin: WP036
Ring Set: RSB5700

Vehicle Fitments

Yamaha YZ125 1983
Yamaha YZ125 1985

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 125	1985
YAMAHA	YZ 125	1983

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.