Name: Piston Kit 01-04 YZF250 79.00, Forged Wosser 8559D200 3-RING
Brand: Wossner
SKU: 56-W4738+200.WO

Piston Kit 01-04 YZF250 79.00, Forged Wosser 8559D200 3-RING

Wossner
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Description

Wossner 79mm Bore Piston Kit (PN# 8559D200) is designed for Yamaha YZ250F and WF250F models from 2001 to 2004. This forged piston offers superior strength and heat transfer efficiency, ensuring optimal performance and durability. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards.

Features

High-strength forged piston for durability and performance
Optimized heat transfer to cylinder walls
Elliptical design prevents piston collapse and ensures even load distribution
Manufactured in Germany

Specifications

Bore: 79mm
Actual diameter: 78.96mm
Display (cm³): 249
Stroke (mm): 53.6
Clearance (mm): 0.04
Compression Ratio: OEM
OEM Compression Ratio: 12.50:1
Dome Volume (cm³): -4.70
Compression Height (mm): 22.20
Includes 3 piston rings

Cross-Reference OEM Part Numbers

Lock: CW16
Pin: WP059
Ring Set: 790XAS-2

Vehicle Fitments

Yamaha YZ250F (2001-2004)
Yamaha WF250F (2001-2004)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZF 250	2001-2004
YAMAHA	WRF 250	2001-2004

Piston Kit 01-04 YZF250 79.00, Forged Wosser 8559D200 3-RING

Wossner
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Wossner 79mm Bore Piston Kit (PN# 8559D200) is designed for Yamaha YZ250F and WF250F models from 2001 to 2004. This... Read more

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SKU: 56-W4738+200.WO

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Description

Wossner 79mm Bore Piston Kit (PN# 8559D200) is designed for Yamaha YZ250F and WF250F models from 2001 to 2004. This forged piston offers superior strength and heat transfer efficiency, ensuring optimal performance and durability. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards.

Features

High-strength forged piston for durability and performance
Optimized heat transfer to cylinder walls
Elliptical design prevents piston collapse and ensures even load distribution
Manufactured in Germany

Specifications

Bore: 79mm
Actual diameter: 78.96mm
Display (cm³): 249
Stroke (mm): 53.6
Clearance (mm): 0.04
Compression Ratio: OEM
OEM Compression Ratio: 12.50:1
Dome Volume (cm³): -4.70
Compression Height (mm): 22.20
Includes 3 piston rings

Cross-Reference OEM Part Numbers

Lock: CW16
Pin: WP059
Ring Set: 790XAS-2

Vehicle Fitments

Yamaha YZ250F (2001-2004)
Yamaha WF250F (2001-2004)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZF 250	2001-2004
YAMAHA	WRF 250	2001-2004

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.