PISTON KIT YZF WRF 250 3-RING, WOSSNER 8712DB 08-13 77mm
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Delivery to United States 5–8 business days
Wossner forged piston kit with a 77.01mm bore and 76.97mm diameter. This 3-ring piston is engineered for durability and high performance, featuring superior strength and design. Manufactured in Germany, it ensures optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features include forged construction, optimized heat transfer, elliptical design for uniform load distribution, and 3-ring piston design. Specifications: Bore 77.01mm, Diameter 76.97mm, Display (cm³) 249, Stroke (mm) 53.60, Clearance (mm) 0.04, Wossner Compression Ratio OEM, OEM Compression Ratio 13.50:1, Dome Volume (cm³) -2.90, Compression Height (mm) 22.20. Cross-reference OEM Part Numbers: Wossner Piston Yamaha YZ250F (PN# 8712DB), Lock P/N: CW16, Pin P/N: WP059, Ring Set P/N: 770XAS-2, Rod P/N: P4005. Weight is 258 grams.
- SKU
- 56-W240+00B.WO
- Brand
- Wossner
- Availability
- Out of Stock
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- Variant Id
- 255156
FULL DESCRIPTION
Wossner Forged Piston Kit for Yamaha YZF WRF 250
Upgrade your motorcycle's performance with this high-quality Wossner forged piston kit. Engineered for durability and exceptional performance, this 3-ring piston is designed to meet the demands of high-performance riding.
Key Features:
- Forged Construction: Provides superior strength and resilience for extended engine life.
- Optimized Heat Transfer: Promotes efficient combustion and helps maintain optimal engine temperatures.
- Elliptical Design: Ensures a uniform bearing surface even under extreme heat, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse.
- 3-Ring Piston Design: Enhances sealing and durability for consistent power output.
- German Manufacturing: Precision-engineered and manufactured in Germany for exceptional quality and reliability.
Specifications:
- Bore: 77.01mm
- Diameter: 76.97mm
- Displacement: 249 cm³
- Stroke: 53.60mm
- Clearance: 0.04mm
- Dome Volume: -2.90 cm³
- Compression Height: 22.20mm
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 13.50:1
Included Components:
- Piston (Part Number: 8712DB)
- Lock Ring (Part Number: CW16)
- Pin (Part Number: WP059)
- Ring Set (Part Number: 770XAS-2)
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