Sierra Head Gasket Set - Mercruiser - S18-1275.
Contains:
Sierra CodeDescription
S18-3879
Head Gasket
S18-0994
2BBL Carb Mounting Gasket
S18-0463
4BBL Carb Mounting...
Sierra Head Gasket Set - Mercruiser - S18-1274.
Contains:
Sierra CodeDescription
S18-2946
Head Gasket
S18-0994
Mercarb Mounting Gasket
S18-0356
Carb. Mounting...