2Bros Parts

PISTON KIT KTM 400 EXC 89.00, FORGED WOSSNER 8580DA 57530007000

£220.73Only 1 left

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Wossner forged piston kit with 89mm bore size (actual bore 88.94mm) and 398 cm³ displacement. Designed for high-performance applications, this piston offers superior strength and optimized heat transfer. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany for precision and durability. Specifications include a 64.00mm stroke, 0.06mm clearance, OEM compression ratio of 11.00:1, +7.00 cm³ dome volume, and 27.50mm compression height. Includes lock part number CW20, pin part number WP038, and ring set part number 890XSY. OEM cross-reference part number 57530007000. Part number 56-W4733+00A.WO.

Specifications
SKU
56-W4733+00A.WO
Brand
Wossner
Availability
In Stock (1)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
89mm
Variant Id
255980
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit

Enhance the performance and durability of your engine with this premium Wossner forged piston kit. Engineered for high-performance applications, this piston offers superior strength and optimized heat transfer capabilities. Its unique elliptical design ensures uniform bearing surface distribution even under extreme heat expansion, effectively reducing localized pressure and preventing potential piston collapse for greater reliability.

Key Features:

  • Forged construction provides exceptional strength and longevity.
  • Designed for optimized heat transfer to cylinder walls, improving overall engine efficiency.
  • Features an elliptical shape to ensure even thrust load distribution.
  • Precision manufactured in Germany, guaranteeing high quality and dependable performance.

Specifications:

  • Bore Size: 89.00mm
  • Actual Bore: 88.94mm
  • Display (cm³): 398
  • Stroke (mm): 64.00
  • Clearance (mm): 0.06
  • Wossner Compression Ratio: OEM
  • OEM Compression Ratio: 11.00:1
  • Dome Volume (cm³): +7.00
  • Compression Height (mm): 27.50
  • Lock Part Number: CW20
  • Pin Part Number: WP038
  • Ring Set Part Number: 890XSY

Cross-Reference OEM Part Numbers:

  • 57530007000
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