PISTON KIT 93-02 YZ80 47.00 B, WOSSNER 8188DB YAMAHA MX

Wossner Piston Kit 8188DB is a high-performance forged piston designed for Yamaha YZ80 models from 1993 to 2001 with a bore size of 47.01mm (US Bore +0.01). Manufactured in Germany, this piston is engineered for optimal heat transfer, structural integrity, and load distribution. The elliptical design ensures an even bearing surface under thermal expansion, minimising the risk of piston collapse and improving reliability under extreme conditions.

Features

• Forged piston construction for superior strength and longevity

• Elliptical profile for balanced load distribution under heat expansion

• Efficient heat dissipation to cylinder walls for optimal combustion performance

• Designed and manufactured in Germany

Specifications

• Bore: 47.01 mm

• Actual Piston Diameter: 46.96 mm

• Stroke: 47.80 mm

• Displacement: 82 cm³

• Clearance: 0.05 mm

• Compression Height: 26.00 mm

• Wossner Compression Ratio: 2-stroke

• OEM Compression Ratio: 2-stroke

• Dome Volume: Not specified

• Theoretical Weight: Not specified

Cross-Reference OEM Part Numbers

• Wossner Piston: 8188DB

• Lock: CW14

• Pin: WP058

• Ring Set: RSB4700

• Rod: P2008

• Internal Part No: 56-W646+00B.WO

Vehicle Fitments

• 1993 Yamaha YZ80

• 1994 Yamaha YZ80

• 1995 Yamaha YZ80

• 1996 Yamaha YZ80

• 1997 Yamaha YZ80

• 1998 Yamaha YZ80

• 1999 Yamaha YZ80

• 2000 Yamaha YZ80

• 2001 Yamaha YZ80