Mercruiser Thermostat Housing Cover

Modeltypes:

Mercruiser 120 GM 153 I/L4 1983-1986 S/N: 6229718-0B531853
Mercruiser 140 GM 181 I/L4 1982-1986 S/N: 6229718-0B450800
Mercruiser 2.5L GM 153 I/L4 1987-1989 S/N: 0B531854-0C856558
Mercruiser 3.0L GM 181 I/L4 1987-1994 & 1998 S/N: 0B450801-0F353099 & 0L010042-0L096999
Mercruiser 3.0LX GM 181 I/L4 1990-1997 S/N: 0C856559-0K999999
Mercruiser 3.0L GM 181 I/L4 S/N: 0L097000 & up