Sierra Remanufactured CarburetorsSierra Carburetors are precision remanufactured to meet or exceed OEM specifications. Sierra Carburetors have been re-calibrated and re-engineered to maximize fuel efficiency and performance. All carburetors are flow tested throughout the entire throttle range. Fuel mixture and idle settings are pre-set to ensure that only minor idle and choke adjustments are necessary during installation. All bases are resurfaced, and throttle shaft bushings are replaced. Base gasket is included.• Sierra Part 18-7605-1• 4 Barrel• RochesterReplaces:• Mercruiser 1347-9661A3• Mercruiser 1347-804623A1• Mercruiser 1347-804623R02• OMC 382821• OMC 383766• OMC 384194• Rochester 17057283• Rochester 17057285• Rochester 17059291• Rochester 17059292• Rochester 17080564• Rochester 17080565 4 Barrel Rochester Meets or exceeds OEM specs Base gasket included | Remanufactured Carburetor For Rochester/Merc/OMC, Part 18-7605-1