2Bros Parts

PISTON 94-09 TM250 66.4 DOMED, WOSSNER 8136DB TWIN RING

£153.68

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Wossner forged piston kit for 2-stroke engines, 66.4mm domed piston with twin rings. Features forged construction for enhanced durability and optimized heat transfer for improved performance. The elliptical design prevents localized pressure and piston collapse, while the domed piston design increases efficiency. Manufactured in Germany. Bore: 66.34 mm, Piston Size: 66.41 mm, Displacement: 577 cm³, Stroke: 72.00 mm, Clearance: 0.07 mm. Dome Volume: Domed, Compression Height: 38.00 mm. Cross-reference OEM Part Numbers: Lock: CW18, Pin: WP033, Ring Set: 980XSY.

Specifications
SKU
56-W020.B.WO
Brand
Wossner
Availability
In Stock (3)

Fitments (132)

MakeModelYear
MOTO TMEN 2501999
MOTO TMEN 2502000
MOTO TMEN 2502001
MOTO TMEN 2502002
MOTO TMEN 2502003
MOTO TMEN 2502004
MOTO TMEN 2502005
MOTO TMEN 2502006
MOTO TMEN 2502007
MOTO TMEN 2502008
MOTO TMEN 2502009
MOTO TMEN 2502010
MOTO TMEN 2502011
MOTO TMEN 2502012
MOTO TMEN 2502013
MOTO TMEN 2502014
MOTO TMEN 2502015
MOTO TMEN 2502016
MOTO TMEN 2502017
MOTO TMEN 2502018
MOTO TMEN 2502019
MOTO TMEN 2502020
MOTO TMEN 2502021
MOTO TMEN 2502022
MOTO TMEN 2502023
MOTO TMEN 2502024
MOTO TMEN 2502025
MOTO TMMX 2501999
MOTO TMMX 2502000
MOTO TMMX 2502001
MOTO TMMX 2502002
MOTO TMMX 2502003
MOTO TMMX 2502004
MOTO TMMX 2502005
MOTO TMMX 2502006
MOTO TMMX 2502007
MOTO TMMX 2502008
MOTO TMMX 2502009
MOTO TMMX 2502010
MOTO TMMX 2502011
MOTO TMMX 2502012
MOTO TMMX 2502013
MOTO TMMX 2502014
MOTO TMMX 2502015
MOTO TMMX 2502016
MOTO TMMX 2502017
MOTO TMMX 2502018
MOTO TMMX 2502019
MOTO TMMX 2502020
MOTO TMMX 2502021
MOTO TMMX 2502022
MOTO TMMX 2502023
MOTO TMMX 2502024
MOTO TMMX 2502025
TMCROSS 2501999
TMCROSS 2502000
TMCROSS 2502001
TMCROSS 2502002
TMCROSS 2502003
TMCROSS 2502004
TMCROSS 2502005
TMCROSS 2502006
TMCROSS 2502007
TMCROSS 2502008
TMCROSS 2502009
TMCROSS 2502010
TMCROSS 2502011
TMCROSS 2502012
TMCROSS 2502013
TMCROSS 2502014
TMCROSS 2502015
TMCROSS 2502016
TMCROSS 2502017
TMCROSS 2502018
TMCROSS 2502019
TMEN 2501999
TMEN 2502000
TMEN 2502001
TMEN 2502002
TMEN 2502003
TMEN 2502004
TMEN 2502005
TMEN 2502006
TMEN 2502007
TMEN 2502008
TMEN 2502009
TMEN 2502010
TMEN 2502011
TMEN 2502012
TMEN 2502013
TMEN 2502014
TMEN 2502015
TMEN 2502016
TMENDURO 2501999
TMENDURO 2502000
TMENDURO 2502001
TMENDURO 2502002
TMENDURO 2502003
TMENDURO 2502004
TMENDURO 2502005
TMENDURO 2502006
TMENDURO 2502007
TMENDURO 2502008
TMENDURO 2502009
TMENDURO 2502010
TMENDURO 2502011
TMENDURO 2502012
TMENDURO 2502013
TMENDURO 2502014
TMENDURO 2502015
TMENDURO 2502016
TMENDURO 2502017
TMENDURO 2502018
TMENDURO 2502019
TMMX 2501999
TMMX 2502000
TMMX 2502001
TMMX 2502002
TMMX 2502003
TMMX 2502004
TMMX 2502005
TMMX 2502006
TMMX 2502007
TMMX 2502008
TMMX 2502009
TMMX 2502010
TMMX 2502011
TMMX 2502012
TMMX 2502013
TMMX 2502014
TMMX 2502015
TMMX 2502016
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
254274
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner 66.4mm Domed Twin Ring Forged Piston Kit

This Wossner forged piston kit is engineered for exceptional strength and performance in demanding 2-stroke motorcycle engines. Designed for optimal heat transfer, it efficiently moves heat from the combustion chamber to the cylinder walls, contributing to consistent performance. The innovative elliptical design ensures a uniform bearing surface even under extreme heat expansion, effectively reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany to high standards, this piston is built for durability and reliability.

Key Features:

  • Forged Construction: Provides superior strength and enhanced durability over cast pistons.
  • Optimized Heat Transfer: Promotes efficient cooling for improved engine performance and longevity.
  • Elliptical Design: Prevents localized pressure and ensures even load distribution, resisting piston collapse.
  • Domed Piston Design: Engineered for increased combustion efficiency.
  • Twin Ring Configuration: Offers improved sealing for better compression and performance.

Specifications:

  • Bore: 66.34 mm
  • Piston Size: 66.41 mm
  • Displacement: 577 cm³
  • Stroke: 72.00 mm
  • Clearance: 0.07 mm
  • Dome Volume: Domed
  • Compression Height: 38.00 mm
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details

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