2Bros Parts

PISTON KIT 01-08 KTM50 SX, WOSSNER 8225DA FORGED MX 45030007000

£83.92
1

Wossner forged piston kit with a 39.50mm bore. Standard size replacement for KTM SX50 models (2001-2008) and KTM 50 Mini Adventure models (2002-2008). Features forged construction for superior strength and durability, optimal heat transfer design, and an elliptical shape for even thrust load distribution and minimal piston collapse. Made in Germany. Specifications include an actual bore of 39.46mm, 50 cm³ engine displacement, 40.00mm stroke, 0.04mm clearance, 2-stroke compression ratio, 21.60mm compression height, CW12 lock part number, WP101 pin part number, and RSB3950 ring set part number. Cross-reference OEM part numbers: 45030007000, 803M03950.

Specifications
SKU
56-W803.A.WO
Brand
Wossner
Availability
In Stock (2)

Fitments (71)

MakeModelYear
BETARK6 501997
BETARK6 501998
BETARK6 501999
BETARK6 502000
BETARK6 502001
BETARK6 502002
BETAST 501996
BETAST 501997
BETAST 501998
BETAST 501999
BETASUPERMOTARD 501996
BETASUPERMOTARD 501997
BETASUPERMOTARD 501998
BETASUPERMOTARD 501999
KTM50 ADVENTURE2002
KTM50 ADVENTURE2003
KTM50 ADVENTURE2004
KTM50 ADVENTURE2005
KTM50 ADVENTURE2006
KTM50 ADVENTURE2007
KTM50 ADVENTURE2008
KTM50 JR ADVENTURE2002
KTM50 JR ADVENTURE2003
KTM50 MINI ADVENTURE2002
KTM50 MINI ADVENTURE2003
KTM50 MINI ADVENTURE2004
KTM50 MINI ADVENTURE2005
KTM50 MINI ADVENTURE2006
KTM50 MINI ADVENTURE2007
KTM50 MINI ADVENTURE2008
KTM50 MINI ADVENTURE GS2002
KTM50 SR ADVENTURE2002
KTM50 SR ADVENTURE2003
KTM50 SR ADVENTURE2004
KTM50 SR ADVENTURE2005
KTM50 SR ADVENTURE2006
KTM50 SR ADVENTURE2007
KTM50 SX2001
KTM50 SX2002
KTM50 SX2003
KTM50 SX2004
KTM50 SX2005
KTM50 SX2006
KTM50 SX2007
KTM50 SX2008
KTM50 SX JR2006
KTM50 SX JR2007
KTM50 SX JR2008
KTM50 SX MINI LC2001
KTM50 SX MINI LC2002
KTM50 SX MINI LC2003
KTM50 SX MINI LC2004
KTM50 SX MINI LC2005
KTM50 SX MINI LC2006
KTM50 SX MINI LC2007
KTM50 SX MINI LC2008
KTM50 SX PRO JR2001
KTM50 SX PRO JR2002
KTM50 SX PRO JR2003
KTM50 SX PRO JR2004
KTM50 SX PRO JR2005
KTM50 SX PRO SR2001
KTM50 SX PRO SR2002
KTM50 SX PRO SR2003
KTM50 SX PRO SR2004
KTM50 SX PRO SR2005
KTM50 SXR ADVENTURE2003
KTM50 SXR ADVENTURE2004
KTM50 SXR ADVENTURE2005
KTM50 SXR ADVENTURE2006
KTM50 SXR ADVENTURE2007
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
257819
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit - 39.50mm Bore

This Wossner forged piston kit features a 39.50mm bore and is engineered for optimal performance and durability in small two-stroke engines. Its forged construction provides superior strength, while the elliptical design ensures even thrust load distribution and minimizes piston collapse. This kit is designed for efficient heat transfer from the combustion chamber to the cylinder walls, helping to maintain reliability.

Key Features:

  • Forged construction for enhanced strength and longevity.
  • Designed for optimal heat transfer.
  • Elliptical piston design for even thrust load distribution.
  • Precision manufactured in Germany.

Specifications:

  • Bore: 39.50mm
  • Actual Bore: 39.46mm
  • Engine Displacement: 50 cm³
  • Stroke: 40.00mm
  • Clearance: 0.04mm
  • Compression Ratio: 2-stroke (Wossner and OEM)
  • Compression Height: 21.60mm
  • Lock Part Number: CW12
  • Pin Part Number: WP101
  • Ring Set Part Number: RSB3950

Cross-Reference OEM Part Numbers:

  • 45030007000
  • 803M03950
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