Yamaha Cylinder Housing Seal. Will fit the following models:
Yamaha Motorcycle 1987 MOTOCROSS - YZ125T CYLINDER
Yamaha Motorcycle 1986 YZ125S CYLINDER
Yamaha Motorcycle 1988 MOTOCROSS - YZ125U CYLINDER
Yamaha Motorcycle 1990 YZ125A Cylinder Head
Yamaha Motorcycle 1993 YZ125E Cylinder Head
Yamaha Motorcycle 1992 YZ125D1 Cylinder Head
Yamaha Motorcycle 1989 MOTOCROSS - YZ125W Cylinder Head
Yamaha Motorcycle 1991 YZ125B Cylinder Head