PISTON KIT 05-07 YZF250 77mm, WOSSNER 8614DA 3-RING, 5NL-11631-20-00
Wossner forged piston kit with a 77mm bore. This three-ring piston is 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 forged piston for superior strength and design, three-ring design for enhanced sealing and durability, optimized heat transfer to cylinder walls, and elliptical design for uniform bearing surface and even thrust load distribution. Specifications include a 77mm bore, standard size piston (PN# 8614DA), lock part number CW16, pin part number WP070, ring set part number 770XAS, displacement of 249 cm³, stroke of 53.6mm, clearance of 0.04mm, OEM compression ratio of 12.50:1, dome volume of -4.50 cm³, and compression height of 22.20mm. Cross-reference OEM part number: 5NL-11631-20-00.
- SKU
- 56-W189+00A.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner 77mm Forged Piston Kit
This Wossner forged piston kit features a 77mm bore and a three-ring design, engineered for superior strength, durability, and optimal performance. Manufactured in Germany, this piston is designed for enhanced combustion chamber heat transfer and maintains a uniform bearing surface under heat expansion, which reduces localized pressure and prevents piston collapse. The advanced elliptical design ensures even thrust load distribution for a longer lifespan.
Key Features:
- Forged piston construction for exceptional strength and resilience.
- Three-ring configuration for improved sealing and extended durability.
- Engineered for efficient heat transfer to the cylinder walls.
- Elliptical shape provides a uniform bearing surface and balanced thrust load.
- Precision manufactured in Germany.
Specifications:
- Bore Size: 77mm
- Piston Part Number: 8614DA
- Ring Set Part Number: 770XAS
- Lock Part Number: CW16
- Pin Part Number: WP070
- Displacement: 249 cm³
- Stroke: 53.6mm
- Clearance: 0.04mm
- Compression Height: 22.20mm
- Dome Volume: -4.50 cm³
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 12.50:1
Cross-Reference OEM Part Number:
- 5NL-11631-20-00
