Name: Piston Kit 87-09 YFZ350 68.50, Wossner 8075D450 Yamaha ATV
Brand: Wossner
SKU: 56-W513+450.WO

Piston Kit 87-09 YFZ350 68.50, Wossner 8075D450 Yamaha ATV

Wossner
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Description

This Wossner forged piston kit has a 68.50mm bore and is a +4.50 oversize component designed for select Yamaha two-stroke engines. Manufactured in Germany, the piston features an elliptical design that distributes thrust loads evenly and reduces the risk of localised pressure points and piston collapse. Its construction supports effective heat transfer from the combustion chamber to the cylinder wall, enhancing reliability under high-performance conditions.

Features

Forged piston construction for increased structural integrity
Elliptical design for uniform bearing surface under heat expansion
Efficient combustion chamber heat transfer to cylinder walls
Made in Germany
Includes piston, pin, locks, and ring set

Specifications

Bore Size: 68.50mm
Actual Bore: 68.44mm
Stroke: 54.00mm
Clearance: 0.06mm
Compression Ratio (Wossner and OEM): 2-stroke
Compression Height: 36.00mm
Displacement: 347 cm³

Cross-Reference OEM Part Numbers

Piston Kit Part No: 56-W513+450.WO
Lock P/N: CW16
Pin P/N: WP027
Ring Set P/N: RSB6850 (x2)

Vehicle Fitments

Yamaha YFZ 350 Banshee (1987–2007)
Yamaha RD350 LC - YPVS (1980–1987)
Yamaha RD350 AC (1950–2014)
Yamaha RZ350 (1982–1990)
Yamaha RD 350 (1973–1976)
Yamaha RD 400 (1976)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	RD 350	1973-1990
YAMAHA	RD 400	1976-1982

Piston Kit 87-09 YFZ350 68.50, Wossner 8075D450 Yamaha ATV

Wossner
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This Wossner forged piston kit has a 68.50mm bore and is a +4.50 oversize component designed for select Yamaha two-stroke... Read more

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SKU: 56-W513+450.WO

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Description

This Wossner forged piston kit has a 68.50mm bore and is a +4.50 oversize component designed for select Yamaha two-stroke engines. Manufactured in Germany, the piston features an elliptical design that distributes thrust loads evenly and reduces the risk of localised pressure points and piston collapse. Its construction supports effective heat transfer from the combustion chamber to the cylinder wall, enhancing reliability under high-performance conditions.

Features

Forged piston construction for increased structural integrity
Elliptical design for uniform bearing surface under heat expansion
Efficient combustion chamber heat transfer to cylinder walls
Made in Germany
Includes piston, pin, locks, and ring set

Specifications

Bore Size: 68.50mm
Actual Bore: 68.44mm
Stroke: 54.00mm
Clearance: 0.06mm
Compression Ratio (Wossner and OEM): 2-stroke
Compression Height: 36.00mm
Displacement: 347 cm³

Cross-Reference OEM Part Numbers

Piston Kit Part No: 56-W513+450.WO
Lock P/N: CW16
Pin P/N: WP027
Ring Set P/N: RSB6850 (x2)

Vehicle Fitments

Yamaha YFZ 350 Banshee (1987–2007)
Yamaha RD350 LC - YPVS (1980–1987)
Yamaha RD350 AC (1950–2014)
Yamaha RZ350 (1982–1990)
Yamaha RD 350 (1973–1976)
Yamaha RD 400 (1976)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	RD 350	1973-1990
YAMAHA	RD 400	1976-1982

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.