Name: Piston Kit YZ 250F 2019 76.97 B, Wossner 8957DB
Brand: Wossner
SKU: 56-W8812.B.WO

Piston Kit YZ 250F 2019 76.97 B, Wossner 8957DB

Wossner
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Description

The Wossner Forged Piston Kit (8957DB) with a +0.01mm oversize 77.01mm bore is designed for the Yamaha YZ250F (2019). Manufactured in Germany, this high-performance piston is forged for superior strength and optimised thermal efficiency. Its elliptical skirt design ensures balanced expansion and thrust load distribution, helping to prevent localised stress and piston collapse under high-performance conditions.

Features

Forged construction for maximum strength and reliability
Designed for efficient heat transfer from combustion to cylinder walls
Elliptical profile provides uniform bearing surface and load distribution
Manufactured in Germany

Specifications

Piston Size: 77.01mm (+0.01mm Oversize)
Kit Part Number: 56-W8812.B.WO
Wossner Part Number: 8957DB
Piston Type: Forged

Vehicle Fitments

Yamaha YZ250F (2019)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ FX 250	2020
YAMAHA	YZ FX 250	2020-2021
YAMAHA	YZ F 250	2019-2020
YAMAHA	WR F 250	2020
YAMAHA	WR F 250	2020-2021
YAMAHA	YZ F 250	2019-2021
YAMAHA	YZF 250	2019
YAMAHA	YZF 250	2018-2019

Piston Kit YZ 250F 2019 76.97 B, Wossner 8957DB

Wossner
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The Wossner Forged Piston Kit (8957DB) with a +0.01mm oversize 77.01mm bore is designed for the Yamaha YZ250F (2019). Manufactured... Read more

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SKU: 56-W8812.B.WO

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Description

The Wossner Forged Piston Kit (8957DB) with a +0.01mm oversize 77.01mm bore is designed for the Yamaha YZ250F (2019). Manufactured in Germany, this high-performance piston is forged for superior strength and optimised thermal efficiency. Its elliptical skirt design ensures balanced expansion and thrust load distribution, helping to prevent localised stress and piston collapse under high-performance conditions.

Features

Forged construction for maximum strength and reliability
Designed for efficient heat transfer from combustion to cylinder walls
Elliptical profile provides uniform bearing surface and load distribution
Manufactured in Germany

Specifications

Piston Size: 77.01mm (+0.01mm Oversize)
Kit Part Number: 56-W8812.B.WO
Wossner Part Number: 8957DB
Piston Type: Forged

Vehicle Fitments

Yamaha YZ250F (2019)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ FX 250	2020
YAMAHA	YZ FX 250	2020-2021
YAMAHA	YZ F 250	2019-2020
YAMAHA	WR F 250	2020
YAMAHA	WR F 250	2020-2021
YAMAHA	YZ F 250	2019-2021
YAMAHA	YZF 250	2019
YAMAHA	YZF 250	2018-2019

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.