Mercury - Mercruiser 823426A-1 Rochester 4 BBL Carburetor Repair Kit Genuine OEM Mercury - Mercruiser part. Application 200 2 BBL GM 305 V-8 1987 - sn 0B525982 thru 0B774444 230 4 BBL GM 305 V-8 1987 - sn 0B525982 thru 0B773739 260 4 BBL GM 350 V-8 1987 - sn 0B525982 thru 0B773739 350 MAG. Alpha 4 BBL GM 350 V-8 1987-1995 - sn 0B525982 thru 0F600999 5.0L 2 BBL GM 305 V-8 1988-1995 - sn 0B77445 thru 0F600999 5.0LX 4 BBL GM 305 V-8 1988-1995 - sn 0B773740 thru 0F600999 5.7L GM 350 V-8 1988-1995 -