Name: Piston 99-09 TM250 66.4 Dome, Wossner 8137DD Forged Kit, Single Ring
Brand: Wossner
SKU: 56-W021.D.WO

Piston 99-09 TM250 66.4 Dome, Wossner 8137DD Forged Kit, Single Ring

Wossner
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Description

Wossner forged piston kit designed for superior strength and performance in 2-stroke engines. Engineered for optimal heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany.

Features

Forged construction for enhanced durability
Optimized heat transfer for improved performance
Elliptical design prevents localized pressure and piston collapse
Domed piston design for increased efficiency
Single-ring configuration for reduced friction and improved performance

Specifications

Bore: 66.36 mm
Piston Size: 66.44 mm
Displacement: 249 cm³
Stroke: 72.00 mm
Clearance: 0.07 mm
Wossner Compression Ratio: 2-stroke
OEM Compression Ratio: 2-stroke
Dome Volume: Domed
Compression Height: 38.00 mm

Cross-Reference OEM Part Numbers

Lock: CW18
Pin: WP033
Ring Set: RSB6640 x2

Vehicle Fitments

TM 250 Cross (1999-)
TM 250 Enduro (1999-)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
TM	MX 250	1999-2013
TM	EN 250	1999-2013
TM	ENDURO 250	1999-2019
TM	CROSS 250	1999-2019
TM	TM 250	1999-2013

Piston 99-09 TM250 66.4 Dome, Wossner 8137DD Forged Kit, Single Ring

Wossner
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Wossner forged piston kit designed for superior strength and performance in 2-stroke engines. Engineered for optimal heat transfer from the... Read more

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SKU: 56-W021.D.WO

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Description

Wossner forged piston kit designed for superior strength and performance in 2-stroke engines. Engineered for optimal heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany.

Features

Forged construction for enhanced durability
Optimized heat transfer for improved performance
Elliptical design prevents localized pressure and piston collapse
Domed piston design for increased efficiency
Single-ring configuration for reduced friction and improved performance

Specifications

Bore: 66.36 mm
Piston Size: 66.44 mm
Displacement: 249 cm³
Stroke: 72.00 mm
Clearance: 0.07 mm
Wossner Compression Ratio: 2-stroke
OEM Compression Ratio: 2-stroke
Dome Volume: Domed
Compression Height: 38.00 mm

Cross-Reference OEM Part Numbers

Lock: CW18
Pin: WP033
Ring Set: RSB6640 x2

Vehicle Fitments

TM 250 Cross (1999-)
TM 250 Enduro (1999-)

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
TM	MX 250	1999-2013
TM	EN 250	1999-2013
TM	ENDURO 250	1999-2019
TM	CROSS 250	1999-2019
TM	TM 250	1999-2013

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.