Name: Piston Kit YFZ450/R/X 98.00, Wossner 8601D300 Forged Kit
Brand: Wossner
SKU: 56-W4865+300.WO

Piston Kit YFZ450/R/X 98.00, Wossner 8601D300 Forged Kit

Wossner
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Description

The Wossner 8601D300 forged piston kit features a 98.00mm bore and is designed for Yamaha YFZ450 models from 2004 to 2005. Manufactured in Germany, this piston offers enhanced heat transfer and strength, with an elliptical shape that provides uniform bearing under expansion and prevents piston collapse under load.

Features

Forged piston for high strength and durability
Designed for optimal heat transfer to cylinder walls
Elliptical design ensures even bearing surface during heat expansion
Prevents localized pressure and piston collapse
Manufactured in Germany

Specifications

Bore: 98.00 mm
Actual Bore Diameter: 97.95 mm
Display: 449 cm³
Hub Stroke: 62.00 mm
Clearance: 0.05 mm
Compression Height: 25.00 mm
Dome Volume: -7.40 cm³
Compression Ratio: OEM (11.90:1)
Theoretical Weight: Not specified

Cross-Reference OEM Part Numbers

Piston: 8601D300
Lock: CW20
Pin: WP038
Ring Set: 980XSY
Rod: P4029
Part No.: 56-W4865+300.WO

Vehicle Fitments

Yamaha YFZ450 2004–2005

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
KAWASAKI	KX 125	1982-1985
YAMAHA	YFZ X 450	2009-2015

Piston Kit YFZ450/R/X 98.00, Wossner 8601D300 Forged Kit

Wossner
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The Wossner 8601D300 forged piston kit features a 98.00mm bore and is designed for Yamaha YFZ450 models from 2004 to... Read more

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SKU: 56-W4865+300.WO

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Description

The Wossner 8601D300 forged piston kit features a 98.00mm bore and is designed for Yamaha YFZ450 models from 2004 to 2005. Manufactured in Germany, this piston offers enhanced heat transfer and strength, with an elliptical shape that provides uniform bearing under expansion and prevents piston collapse under load.

Features

Forged piston for high strength and durability
Designed for optimal heat transfer to cylinder walls
Elliptical design ensures even bearing surface during heat expansion
Prevents localized pressure and piston collapse
Manufactured in Germany

Specifications

Bore: 98.00 mm
Actual Bore Diameter: 97.95 mm
Display: 449 cm³
Hub Stroke: 62.00 mm
Clearance: 0.05 mm
Compression Height: 25.00 mm
Dome Volume: -7.40 cm³
Compression Ratio: OEM (11.90:1)
Theoretical Weight: Not specified

Cross-Reference OEM Part Numbers

Piston: 8601D300
Lock: CW20
Pin: WP038
Ring Set: 980XSY
Rod: P4029
Part No.: 56-W4865+300.WO

Vehicle Fitments

Yamaha YFZ450 2004–2005

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
KAWASAKI	KX 125	1982-1985
YAMAHA	YFZ X 450	2009-2015

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.