PISTON KIT 1983 &85 YZ125 56.5, WOSSNER 8119D050 YAMAHA 39W-11-630-00-00
Wossner piston kit with 56.50mm bore and 56.44mm actual measured bore. Features a forged construction for increased strength and optimized heat transfer. The elliptical design ensures a uniform bearing surface and even thrust load distribution. Manufactured in Germany. Specifications include 83 cm³ display volume, 84.00mm stroke, 0.06mm clearance, 2-stroke compression ratio, 30.80mm compression height, CW16 lock part number, WP036 pin part number, and RSB5600 ring set part number. Cross-reference OEM part numbers include 39W-11-630-00-00 and 55Y-11631-00-94.
- SKU
- 56-W503+050.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner 56.50mm Forged Piston Kit for Yamaha YZ125
Enhance the performance and durability of your Yamaha YZ125 with this premium forged piston kit from Wossner. Engineered for strength and precision, this kit features a 56.50mm bore, offering a +0.01 oversize for optimal fitment. Wossner pistons are manufactured in Germany using advanced forging techniques to provide superior strength and ensure efficient heat transfer from the combustion chamber to the cylinder walls. The innovative elliptical design promotes a uniform bearing surface, adapting to heat expansion and distributing thrust loads evenly to prevent piston collapse and maintain consistent performance.
Key Features:
- Forged Construction: Provides exceptional strength and resilience for demanding applications.
- Optimized Heat Transfer: Designed to effectively move heat from the combustion chamber to the cylinder walls, aiding in thermal management.
- Elliptical Piston Design: Ensures a uniform bearing surface under varying temperatures and distributes thrust loads evenly for reduced wear and improved longevity.
- Precision Manufacturing: Made in Germany to exacting standards for reliability and performance.
Specifications:
- Bore Size: 56.50mm
- Actual Measured Bore: 56.44mm
- Display Volume: 83 cm³
- Stroke: 84.00mm
- Clearance: 0.06mm
- Compression Height: 30.80mm
- Lock Part Number: CW16
- Pin Part Number: WP036
- Ring Set Part Number: RSB5600
Cross-Reference OEM Part Numbers:
- 39W-11-630-00-00
- 55Y-11631-00-94
