1971 OMC Stern Drive Models Where can I find my model number? 90 NUFM-12AX NUFM-13M NUFR-12AX NUFR-13M 120 CUFM-19EX CUFM-20D CUFR-19EX CUFR-20D CUTM-19EX CUTM-20D CUTR-19EX CUTR-20D 155 HUFM-19EX HUFM-20D HUFR-19EX HUFR-20D HUTM-19EX HUTM-20D HUTR-19EX HUTR-20D 215 TUFM-19EX TUFM-20D TUFR-19EX TUFR-20D 235 XUFM-20C XUFM-20S XUFR-20C XUFR-20S
