PISTON KIT 88-92 YZ80 49.00, WOSSNER 8187D100 YAMAHA MX
The Wossner 8187D100 piston kit is built for Yamaha YZ80 models from 1988 to 1992, featuring a 49.00 mm bore for +1.00 mm oversize applications. This German-made forged piston is engineered for durability and optimal heat dissipation. Its elliptical design allows for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete and precise engine rebuild.
Features
-
Forged piston construction ensures high strength and thermal efficiency
-
Designed for effective heat transfer from the combustion chamber
-
Elliptical profile promotes uniform thrust load distribution
-
Minimises localised pressure and reduces the risk of piston collapse
-
Precision engineered in Germany
Specifications
-
Bore Size: 49.00 mm
-
Actual Bore Diameter: 48.95 mm
-
Stroke: 45.60 mm
-
Display Displacement: 82 cm³
-
Clearance: 0.05 mm
-
Compression Ratio (Wossner and OEM): 2-stroke
-
Compression Height: 27.00 mm
Cross-Reference Wossner Part Numbers
-
Piston Kit: 8187D100
-
Lock: CW12
-
Pin: WP091
-
Ring Set: RSB4900
-
Part No.: 56-W569+100.WO
Vehicle Fitments
-
Yamaha YZ80 (1988ā1992)
Product Information
Product Information
Shipping & Returns
Shipping & Returns




PISTON KIT 88-92 YZ80 49.00, WOSSNER 8187D100 YAMAHA MX
PISTON KIT 88-92 YZ80 49.00, WOSSNER 8187D100 YAMAHA MX
The Wossner 8187D100 piston kit is built for Yamaha YZ80 models from 1988 to 1992, featuring a 49.00 mm bore for +1.00 mm oversize applications. This German-made forged piston is engineered for durability and optimal heat dissipation. Its elliptical design allows for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete and precise engine rebuild.
Features
-
Forged piston construction ensures high strength and thermal efficiency
-
Designed for effective heat transfer from the combustion chamber
-
Elliptical profile promotes uniform thrust load distribution
-
Minimises localised pressure and reduces the risk of piston collapse
-
Precision engineered in Germany
Specifications
-
Bore Size: 49.00 mm
-
Actual Bore Diameter: 48.95 mm
-
Stroke: 45.60 mm
-
Display Displacement: 82 cm³
-
Clearance: 0.05 mm
-
Compression Ratio (Wossner and OEM): 2-stroke
-
Compression Height: 27.00 mm
Cross-Reference Wossner Part Numbers
-
Piston Kit: 8187D100
-
Lock: CW12
-
Pin: WP091
-
Ring Set: RSB4900
-
Part No.: 56-W569+100.WO
Vehicle Fitments
-
Yamaha YZ80 (1988ā1992)
Original: $173.38
-65%$173.38
$60.68Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Wossner 8187D100 piston kit is built for Yamaha YZ80 models from 1988 to 1992, featuring a 49.00 mm bore for +1.00 mm oversize applications. This German-made forged piston is engineered for durability and optimal heat dissipation. Its elliptical design allows for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete and precise engine rebuild.
Features
-
Forged piston construction ensures high strength and thermal efficiency
-
Designed for effective heat transfer from the combustion chamber
-
Elliptical profile promotes uniform thrust load distribution
-
Minimises localised pressure and reduces the risk of piston collapse
-
Precision engineered in Germany
Specifications
-
Bore Size: 49.00 mm
-
Actual Bore Diameter: 48.95 mm
-
Stroke: 45.60 mm
-
Display Displacement: 82 cm³
-
Clearance: 0.05 mm
-
Compression Ratio (Wossner and OEM): 2-stroke
-
Compression Height: 27.00 mm
Cross-Reference Wossner Part Numbers
-
Piston Kit: 8187D100
-
Lock: CW12
-
Pin: WP091
-
Ring Set: RSB4900
-
Part No.: 56-W569+100.WO
Vehicle Fitments
-
Yamaha YZ80 (1988ā1992)





















