OMC Carburetor - 18-7615 OMC Carburetor - 18-7615 by Sierra. Please use the Red PARTS CHARTS button (top of any page) to locate the correct part for your application. $ 500.40               More Information      Quantity:     Mercruiser Carburetor - 18-7615 Mercruiser Carburetor - 18-7615 by Sierra. Please use the Red PARTS CHARTS button (top of any page) to locate the correct part for your application. $ 500.40               More Information      Quantity:     Carburetor - 18-7615 Carburetor - 18-7615. Please use the Red PARTS CHARTS button (top of any page) to locate the correct part for your application. All prices are per unit (50' Coil=50 Units, 2 PK=2 Units, and etc.). Verify your quantity is correct at Check-Out and adju as necessary. Send us an email (Contact Us button at top of any page) if you have any questions. $ 500.40               More Information      Quantity: