WOSSNER 49mm FORGED PISTON KIT YAMAHA YZ80 1976-1980

Wössner 49mm forged piston kit designed for Yamaha YZ80 models from 1976 to 1980. Engineered for optimal combustion chamber heat transfer and uniform load distribution, reducing localized pressure and preventing piston collapse. Made in Germany for durability and performance.

Features

• Forged construction for superior strength and durability
• Optimized heat transfer to cylinder walls
• Elliptical design ensures uniform bearing surface under heat expansion
• Reduces localized pressure and evenly distributes thrust loads
• Prevents piston collapse under high-stress conditions

Specifications

• Bore Size: 49mm
• Wössner Part Number: 8183DA
• Lock Part Number: CW12
• Pin Part Number: WP091
• Ring Set Part Number: RSB4900
• Displacement: 79 cm³
• Stroke: 42.00mm
• Clearance: 0.05mm
• Compression Ratio: 2-stroke
• Compression Height: 29.50mm

Cross-Reference OEM Part Numbers

• Not specified

Vehicle Fitments

• Yamaha YZ80 (1976-1980)

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.