WOSSNER 47mm FORGED PISTON KIT YAMAHA YZ80 1982-1983

Wossner 47mm Bore Piston Kit (PN# 8185DA) is designed for Yamaha YZ80 models from 1982 to 1983. This forged piston ensures high strength, efficient heat transfer, and durability. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany, this piston meets OEM compression standards.

Features

• High-strength forged piston for durability and performance
• Optimized heat transfer for efficient combustion
• Elliptical design prevents piston collapse and ensures even load distribution
• Manufactured in Germany

Specifications

• Bore: 47mm
• Actual diameter: 46.95mm
• Display (cm³): 79
• Stroke (mm): 55.50
• Clearance (mm): 0.05
• Compression Ratio: OEM
• OEM Compression Ratio: 11.10:1
• Dome Volume (cm³): -0.20
• Compression Height (mm): 22.80

Cross-Reference OEM Part Numbers

• Lock: CW12
• Pin: WP091
• Ring Set: RSB4700
• OEM Part Number: 3R1-11630-02-00

Vehicle Fitments

• Yamaha YZ80 (1982-1983)

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.