PISTON KIT 01-04 YZF250 79.00, FORGED WOSSER 8559D200 3-RING
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Wossner 79mm Bore Piston Kit PN# 8559D200. This forged piston offers superior strength and heat transfer efficiency, ensuring optimal performance and durability. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards. Features include a high-strength forged piston for durability and performance, optimized heat transfer to cylinder walls, and an elliptical design that prevents piston collapse and ensures even load distribution. Specifications: Bore 79mm, actual diameter 78.96mm, Display (cm³) 249, Stroke (mm) 53.6, Clearance (mm) 0.04, Compression Ratio OEM, OEM Compression Ratio 12.50:1, Dome Volume (cm³) -4.70, Compression Height (mm) 22.20. Includes 3 piston rings. Cross-Reference OEM Part Numbers: Lock CW16, Pin WP059, Ring Set 790XAS-2.
- SKU
- 56-W4738+200.WO
- Brand
- Wossner
- Availability
- In Stock (2)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 79mm
- Variant Id
- 256019
FULL DESCRIPTION
Wossner Forged Piston Kit for Yamaha YZF250
Upgrade your motorcycle's performance and durability with the Wossner 79mm Bore Piston Kit. This high-strength forged piston is engineered for optimal power delivery and longevity, manufactured to meet OEM compression standards. Its advanced elliptical design ensures uniform bearing surfaces, even under extreme heat, effectively preventing piston collapse by distributing thrust loads evenly.
Key Features:
- Forged Construction: Provides superior strength and resistance to high temperatures and pressures.
- Optimized Heat Transfer: Efficiently transfers heat to cylinder walls for improved performance and reduced wear.
- Elliptical Design: Ensures even load distribution and prevents piston collapse under thermal expansion.
- OEM Compression Ratio: Designed to match original equipment specifications for seamless integration.
- 3-Ring Design: Includes a complete set of three piston rings for optimal sealing and performance.
- German Engineering: Manufactured in Germany, ensuring high quality and precision.
Specifications:
- Bore Size: 79mm
- Actual Piston Diameter: 78.96mm
- Engine Displacement (cm³): 249
- Stroke (mm): 53.6
- Piston Clearance (mm): 0.04
- Compression Ratio: OEM
- OEM Compression Ratio: 12.50:1
- Dome Volume (cm³): -4.70
- Compression Height (mm): 22.20
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