2Bros Parts

PISTON 94-08 KTM620 640 101 B, FORGED WOSSNER KIT 8524DB

$243.44
1

Wossner forged piston kit with a 101.01mm bore for KTM 620, 625, and 640 models. Engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Manufactured in Germany for durability and precision. Features include a forged piston for superior strength, optimized heat transfer to cylinder walls, and an elliptical design for uniform bearing surface and even thrust load distribution. Specifications: Bore 101.01mm (+0.01mm oversize), standard size piston (PN# 8524DB), lock part number CW22, pin part number WP009, ring set part number 1010XSY, displacement 600 cm³, stroke 76.00mm, clearance 0.06mm, Wossner compression ratio OEM, OEM compression ratio 11.70:1, dome volume +7.60 cm³, and compression height 26.50mm.

Specifications
SKU
56-W181.B
Brand
Wossner
Availability
In Stock (1)

Fitments (114)

MakeModelYear
KTM620 DUKE1994
KTM620 DUKE1995
KTM620 DUKE1996
KTM620 DUKE1997
KTM620 LC41994
KTM620 LC41995
KTM620 LC41996
KTM620 LC41997
KTM620 LC41998
KTM620 LC41999
KTM620 LC42000
KTM620 LC42001
KTM620 LC42002
KTM620 LC42003
KTM620 LC42004
KTM620 LC42005
KTM620 LC42006
KTM620 LC42007
KTM620 LC42008
KTM620 LC42009
KTM620 LC4, DUKE1994
KTM620 LC4, DUKE1995
KTM620 LC4, DUKE1996
KTM620 LC4, DUKE1997
KTM620 SC1998
KTM620 SC1999
KTM620 SC2000
KTM620 SC2001
KTM620 SX C2002
KTM620 SX C2003
KTM620 SX C2004
KTM620 SX C2005
KTM620 SX C2006
KTM620 SX C2007
KTM620 SXC2002
KTM620 SXC2003
KTM620 SXC2004
KTM620 SXC2005
KTM620 SXC2006
KTM620 SXC2007
KTM625 SMC1994
KTM625 SMC1995
KTM625 SMC1996
KTM625 SMC1997
KTM625 SMC1998
KTM625 SMC1999
KTM625 SMC2000
KTM625 SMC2001
KTM625 SMC2002
KTM625 SMC2003
KTM625 SMC2004
KTM625 SMC2005
KTM625 SMC2006
KTM625 SMC2007
KTM625 SMC2008
KTM625 SMC2009
KTM625 SXC2002
KTM625 SXC2003
KTM625 SXC2004
KTM625 SXC2005
KTM625 SXC2006
KTM625 SXC2007
KTM640 DUKE1994
KTM640 DUKE1995
KTM640 DUKE1996
KTM640 DUKE1997
KTM640 DUKE1998
KTM640 DUKE1999
KTM640 DUKE2000
KTM640 DUKE2001
KTM640 DUKE2002
KTM640 DUKE2003
KTM640 DUKE2004
KTM640 DUKE2005
KTM640 DUKE2006
KTM640 DUKE2007
KTM640 Duke2008
KTM640 Duke2009
KTM640 DUKE II1998
KTM640 DUKE II1999
KTM640 DUKE II2000
KTM640 DUKE II2001
KTM640 DUKE II2002
KTM640 DUKE II2003
KTM640 DUKE II2004
KTM640 DUKE II2005
KTM640 DUKE II2006
KTM640 DUKE II2007
KTM640 LC41994
KTM640 LC41995
KTM640 LC41996
KTM640 LC41997
KTM640 LC41998
KTM640 LC41999
KTM640 LC42000
KTM640 LC42001
KTM640 LC42002
KTM640 LC42003
KTM640 LC42004
KTM640 LC42005
KTM640 LC42006
KTM640 LC42007
KTM640 LC42008
KTM640 LC42009
KTM640 LC4, DUKE II1998
KTM640 LC4, DUKE II1999
KTM640 LC4, DUKE II2000
KTM640 LC4, DUKE II2001
KTM640 LC4, DUKE II2002
KTM640 LC4, DUKE II2003
KTM640 LC4, DUKE II2004
KTM640 LC4, DUKE II2005
KTM640 LC4, DUKE II2006
KTM640 LC4, DUKE II2007
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
101mm
Variant Id
254880
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner 101.01mm Forged Piston Kit for KTM Engines

Enhance the performance and durability of your KTM motorcycle with this Wossner forged piston kit. Engineered with precision in Germany, this kit features a 101.01mm bore, offering a direct replacement or upgrade for specific KTM models. The forged construction provides superior strength, while advanced design features ensure optimal heat transfer and uniform bearing surface under extreme conditions.

Key Features:

  • Forged Piston: Delivers exceptional strength and resilience for demanding use.
  • Optimized Heat Transfer: Promotes efficient cooling by improving heat transfer to cylinder walls, reducing the risk of localized hot spots.
  • Elliptical Design: Ensures a uniform bearing surface and even distribution of thrust loads, which helps prevent piston collapse under heat expansion.
  • Precision Manufacturing: Made in Germany to the highest standards of quality and accuracy.
  • OEM Compression Ratio: Designed to maintain the original equipment manufacturer's compression ratio for compatibility and predictable performance.

Specifications:

  • Bore Size: 101.01mm (0.01mm oversize)
  • Piston Part Number: 8524DB
  • Lock Part Number: CW22
  • Pin Part Number: WP009
  • Ring Set Part Number: 1010XSY
  • Engine Displacement: 600 cm³
  • Stroke: 76.00mm
  • Piston Clearance: 0.06mm
  • Dome Volume: +7.60 cm³
  • Compression Height: 26.50mm
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