2Bros Parts

PISTON KIT 05 YZF/WR450F 95.00, WOSSNER 8613DA, 5TJ-11631-00-00

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Wossner forged piston kit designed for high performance and durability. Engineered for optimal heat transfer to cylinder walls, ensuring efficient combustion. The elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany to high-quality standards. Features include a high-compression forged piston for enhanced performance, optimized heat transfer for efficient combustion, and an elliptical design to prevent piston collapse. Specifications: Bore Size 95.00mm, Actual Bore Diameter 94.95mm, Displacement 449 cm³, Stroke 63.40mm, Clearance 0.05mm, Wossner Compression Ratio OEM, OEM Compression Ratio 12.30:1, Dome Volume -10.30 cm³, Compression Height 23.50mm. Included components: Lock Part Number CW18, Pin Part Number WP053, Ring Set Part Number 950ADS-2. Cross-reference OEM Part Numbers: 5TJ-11631-00-00.

Specifications
SKU
56-W201.A.WO
Brand
Wossner
Availability
In Stock (1)

Fitments (2)

MakeModelYear
YAMAHAWRF 4502005
YAMAHAYZF 4502005
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
95mm
Variant Id
254968
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit

Experience enhanced performance and durability with the Wossner Forged Piston Kit. This high-performance piston is engineered in Germany to optimize heat transfer to cylinder walls, ensuring efficient combustion for your motorcycle engine. Its innovative elliptical design provides a uniform bearing surface, even under heat expansion, which reduces localized pressure and evenly distributes thrust loads, preventing piston collapse.

Key Features:

  • High-compression forged piston for superior engine performance.
  • Optimized heat transfer design for efficient combustion cycles.
  • Elliptical piston shape engineered to prevent collapse under thermal stress.
  • Precision manufactured in Germany to exacting quality standards.

Specifications:

  • Bore Size: 95.00mm
  • Actual Bore Diameter: 94.95mm
  • Displacement: 449 cm³
  • Stroke: 63.40mm
  • Piston Clearance: 0.05mm
  • Dome Volume: -10.30 cm³
  • Compression Height: 23.50mm

Included Components:

  • Lock Part Number: CW18
  • Pin Part Number: WP053
  • Ring Set Part Number: 950ADS-2

Cross-Reference OEM Part Numbers:

  • 5TJ-11631-00-00
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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

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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