Name: Piston Kit 1989 YZ125 56.50, Wossner 8131D050 Yamaha MX
Brand: Wossner
SKU: 56-W582+050.WO

Piston Kit 1989 YZ125 56.50, Wossner 8131D050 Yamaha MX

Wossner
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Description

Wossner Forged Piston Kit 56.50mm Bore – Yamaha YZ125 1989 (8131D050 +0.50)
This Wossner forged piston kit with a +0.50mm oversize bore (actual 56.44mm) is developed for the 1989 Yamaha YZ125. Designed for high-performance 2-stroke engines, the forged piston offers superior strength and heat transfer capabilities. The elliptical shape ensures balanced load distribution during thermal expansion, effectively minimising localised pressure and reducing the risk of structural failure. Made in Germany for consistent precision and performance.

Features

High-strength forged aluminium piston for demanding 2-stroke use
Enhanced heat transfer from combustion chamber to cylinder walls
Elliptical design ensures uniform bearing surface under expansion
Suitable for 2-stroke engine performance requirements
Precision engineered in Germany

Specifications

Bore Size: 56.50mm (+0.50 oversize)
Actual Bore: 56.44mm
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: 8131D050
Ring Set: RSB5650
Lock: CW16
Pin: WP036
Rod: P2047
Internal Reference: 56-W582+050.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 56.50, Wossner 8131D050 Yamaha MX

Wossner
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Wossner Forged Piston Kit 56.50mm Bore – Yamaha YZ125 1989 (8131D050 +0.50) This Wossner forged piston kit with a +0.50mm... Read more

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SKU: 56-W582+050.WO

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Description

Wossner Forged Piston Kit 56.50mm Bore – Yamaha YZ125 1989 (8131D050 +0.50)
This Wossner forged piston kit with a +0.50mm oversize bore (actual 56.44mm) is developed for the 1989 Yamaha YZ125. Designed for high-performance 2-stroke engines, the forged piston offers superior strength and heat transfer capabilities. The elliptical shape ensures balanced load distribution during thermal expansion, effectively minimising localised pressure and reducing the risk of structural failure. Made in Germany for consistent precision and performance.

Features

High-strength forged aluminium piston for demanding 2-stroke use
Enhanced heat transfer from combustion chamber to cylinder walls
Elliptical design ensures uniform bearing surface under expansion
Suitable for 2-stroke engine performance requirements
Precision engineered in Germany

Specifications

Bore Size: 56.50mm (+0.50 oversize)
Actual Bore: 56.44mm
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: 8131D050
Ring Set: RSB5650
Lock: CW16
Pin: WP036
Rod: P2047
Internal Reference: 56-W582+050.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.

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We currently only ship orders within the UK.

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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.

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