PISTON KIT 02-04 YZ125 54.00 C, WOSSNER 8072DC YAMAHA MX
Wossner forged piston kit with a 54.02mm bore and 53.96mm actual piston diameter. This piston kit features a +0.02mm oversize for Yamaha YZ125 models. Engineered for reliable performance, enhanced heat transfer, and structural stability in 2-stroke engines. Includes forged piston, elliptical profile for consistent bearing surface during thermal expansion, even thrust load distribution to prevent piston collapse and reduce localised stress. Manufactured in Germany. Specifications: Bore: 54.02mm, Piston Diameter: 53.96mm, Display (cm³): 125, Stroke (mm): 54.50, Clearance (mm): 0.06, Compression Height (mm): 28.00. Cross-Reference OEM Part Numbers: 5NY-11631-01-D0, 5NY-11631-01-C0, 5NY-11631-01-B0, 5NY-11631-01-A0, Ring: 5NY-11611-00-00, Pin: 5UN-11633-00-00, Circlip: 93450-16068-00. Included Components: Lock: CW15, Pin: WP032, Ring Set: RSB5400, Rod: P2017. Part Number: 56-W797.C.WO (Piston PN# 8072DC).
- SKU
- 56-W797.C.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Piston Kit 54.02mm Yamaha YZ125 2002-2004
This Wossner piston kit features a 54.02mm bore and 53.96mm actual piston diameter, designed for Yamaha YZ125 models. Engineered with a +0.02mm oversize, this forged piston delivers reliable performance, enhanced heat transfer, and structural stability in high-performance 2-stroke engines.
Key Features:
- Forged piston ensures exceptional strength and durability
- Engineered for effective heat transfer from the combustion chamber to cylinder walls
- Elliptical profile provides a consistent bearing surface during thermal expansion
- Even thrust load distribution prevents piston collapse and reduces localized stress
- Manufactured in Germany
Specifications:
- Bore: 54.02mm
- Piston Diameter: 53.96mm
- Display (cm³): 125
- Stroke (mm): 54.50
- Clearance (mm): 0.06
- Compression Height (mm): 28.00
- Wossner Compression Ratio: 2-stroke
- OEM Compression Ratio: 2-stroke
Cross-Reference OEM Part Numbers:
- 5NY-11631-01-D0
- 5NY-11631-01-C0
- 5NY-11631-01-B0
- 5NY-11631-01-A0
- Ring: 5NY-11611-00-00
- Pin: 5UN-11633-00-00
- Circlip: 93450-16068-00
Included Components:
- Lock: CW15
- Pin: WP032
- Ring Set: RSB5400
- Rod: P2017
- Part Number: (Piston PN# 8072DC)
