PISTON KIT 02-04 YZ125 56.00, WOSSNER 8072D200 YAMAHA MX
Wossner piston kit with 56.00mm bore and 55.94mm actual piston diameter. This forged piston is designed for Yamaha YZ125 models and features a +2.00mm oversize for robust performance, enhanced heat dissipation, and structural reliability in high-demand 2-stroke engine applications. The piston is constructed from forged material for superior strength and longevity, facilitates optimal heat transfer, and has an elliptical profile for consistent bearing surface during thermal expansion. It ensures even distribution of thrust loads to prevent localized pressure and piston collapse. Manufactured in Germany. Specifications include: Bore 56.00mm, Piston Diameter 55.94mm, 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 RSB5600, Rod P2017. Part Number: 56-W797.200.WO (Piston PN# 8072D200). Weight: 205 grams.
- SKU
- 56-W797_200.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner 56.00mm Oversize Piston Kit for Yamaha YZ125
Upgrade your Yamaha YZ125's performance with this high-quality Wossner forged piston kit. Designed for the 2002-2004 models, this piston features a 56.00mm bore and a 55.94mm actual diameter, representing a +2.00mm oversize. Its forged construction offers superior strength, enhanced heat dissipation, and exceptional reliability for demanding 2-stroke applications.
Key Features:
- Forged piston construction for superior strength and longevity.
- Optimizes heat transfer from the combustion chamber to the cylinder walls.
- Elliptical piston profile ensures a consistent bearing surface during thermal expansion.
- Even distribution of thrust loads prevents localized pressure and piston collapse.
- Precision manufactured in Germany for exceptional quality.
Specifications:
- Bore: 56.00mm
- Piston Diameter: 55.94mm
- Engine Displacement: 125 cm³
- Stroke: 54.50mm
- Clearance: 0.06mm
- Compression Height: 28.00mm
- Wossner Compression Ratio: 2-stroke
- OEM Compression Ratio: 2-stroke
Included Components:
- Lock: CW15
- Pin: WP032
- Ring Set: RSB5600
- Rod: P2017
- Part Number: (Piston PN# 8072D200)
