Name: Piston Kit 1989 YZ125 56.00, Wossner 8131DA Yamaha MX
Brand: Wossner
SKU: 56-W582+00A.WO

Piston Kit 1989 YZ125 56.00, Wossner 8131DA Yamaha MX

Wossner
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Description

Wossner Forged Piston Kit 56.00mm Bore – Yamaha YZ125 1989 (8131DA STD)
This Wossner forged piston kit is designed for the 1989 Yamaha YZ125, featuring a standard bore size of 56.00mm (actual 55.94mm). Built for 2-stroke engine performance, it provides exceptional strength and thermal efficiency through its forged aluminium construction. The piston’s elliptical shape ensures uniform thrust load distribution during thermal expansion, reducing localised pressure and the risk of piston collapse. Manufactured in Germany for consistent quality.

Features

Forged piston construction for superior strength and reliability
Engineered to optimise heat transfer from the combustion chamber to the cylinder walls
Elliptical profile maintains a uniform bearing surface under thermal expansion
Developed for 2-stroke engines
Made in Germany

Specifications

Bore Size: 56.00mm (Standard)
Actual Bore: 55.94mm
Compression Height: 28.00mm
Clearance: 0.06mm
Stroke: 50.00mm
Displacement: 123 cm³
Wossner Compression Ratio: 2-stroke
OEM Compression Ratio: 2-stroke

Cross-Reference OEM Part Numbers

Wossner Piston: 8131DA
Ring Set: RSB5600
Lock: CW16
Pin: WP036
Rod: P2047
Internal Reference: 56-W582+00A.WO

Vehicle Fitments

1989 Yamaha YZ125

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 125	1989

Piston Kit 1989 YZ125 56.00, Wossner 8131DA Yamaha MX

Wossner
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Wossner Forged Piston Kit 56.00mm Bore – Yamaha YZ125 1989 (8131DA STD) This Wossner forged piston kit is designed for... Read more

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SKU: 56-W582+00A.WO

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Description

Wossner Forged Piston Kit 56.00mm Bore – Yamaha YZ125 1989 (8131DA STD)
This Wossner forged piston kit is designed for the 1989 Yamaha YZ125, featuring a standard bore size of 56.00mm (actual 55.94mm). Built for 2-stroke engine performance, it provides exceptional strength and thermal efficiency through its forged aluminium construction. The piston’s elliptical shape ensures uniform thrust load distribution during thermal expansion, reducing localised pressure and the risk of piston collapse. Manufactured in Germany for consistent quality.

Features

Forged piston construction for superior strength and reliability
Engineered to optimise heat transfer from the combustion chamber to the cylinder walls
Elliptical profile maintains a uniform bearing surface under thermal expansion
Developed for 2-stroke engines
Made in Germany

Specifications

Bore Size: 56.00mm (Standard)
Actual Bore: 55.94mm
Compression Height: 28.00mm
Clearance: 0.06mm
Stroke: 50.00mm
Displacement: 123 cm³
Wossner Compression Ratio: 2-stroke
OEM Compression Ratio: 2-stroke

Cross-Reference OEM Part Numbers

Wossner Piston: 8131DA
Ring Set: RSB5600
Lock: CW16
Pin: WP036
Rod: P2047
Internal Reference: 56-W582+00A.WO

Vehicle Fitments

1989 Yamaha YZ125

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 125	1989

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.