WOSSNER 56mm FORGED PISTON KIT YAMAHA YZ125 1976-1982

Wossner forged piston kit designed for Yamaha YZ125 models from 1976 to 1982. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse.

Features

• Forged construction for enhanced durability and strength
• Optimized heat transfer for improved performance
• Elliptical design for uniform bearing surface and reduced wear
• Designed for 2-stroke engines

Specifications

• Bore Size: 56.00 mm
• Actual Bore: 55.94 mm
• Stroke: 56.50 mm
• Clearance: 0.06 mm
• Compression Height: 25.40 mm
• Dome Volume: +6.40 cm³
• Compression Ratio: 10.50:1 (OEM)
• Displacement: 123 cm³
• Made in Germany

Cross-Reference OEM Part Numbers

• Wossner Part No.: 8155DA
• Lock P/N: CW16
• Pin P/N: WP036
• Ring Set P/N: RSB5600
• OEM Piston: 1G8-11630-00-00
• Other Reference Numbers: 435M05600

Vehicle Fitments

• Yamaha YZ125 (1976-1982)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.