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MerCruiser


                LOWER DRIVE SHAFT, PROP SHAFT & SHIFT SHAFT IDENTIFICATION

                             Lower Drive Shafts                                      Prop Shafts
             No. 11110                                           No. 11155
             OEM: 45-41939F1                                     OEM: 44-850308
             For Mercruiser I,                                   For MC-I / R /
             except MR/ALPHA                                     MR / Alpha One &
             Length: 18-3/4”                                     Alpha One Gen II
             Bearing Journal ø: 1”                               Length: 15-1/2”
             Gear Splines: 11                                    Bearing Journal ø:1-3/16”
                                                                 Prop Splines: 15
             No. 11120                                           Prop Thrust Washer: 21301
             OEM: 45-42634
             For MR/ALPHA drives
             w/o preload pins                                                      Carrier
             Length: 18-3/16”                          Length                  Needle Bearing             Length
             Bearing Journal ø: 1-1/8”                                            Journal ø
             Gear Splines: 13
             No. 11140                                                       Prop Thrust Washer
             OEM: 45-816919, 45-816472
                      45-853647, 45-853648
             For Alpha One Gen II       Pinion
             (1991 & Up) Fits All Ratio  Bearing
             Length: 18-3/16”          Journal                                  Prop Splines
             Bearing Journal ø: 1-1/8”    ø
             Gear Splines: 13
                                     Pinion Gear
                                       Splines
                                                       Lower Shift Shafts
             No. 21031                                           No. 21030
             OEM: 815919A1               Length                  OEM: 77481-1                 Length
             For Alpha Gen II                                    For MC-I / R / MR
             Length: 12-1/8”                                     Alpha One
                                                                 Length: 9-1/4”
                 LOWER DRIVE SHAFT, PROP SHAFT & SHIFT SHAFT APPLICATIONS
                                              Serial No.      Lower Gearcase
                  Model          Year                                               Prop Shaft        Shift Shaft
                                                Range            Driveshaft
              IA / IB / IC EZ   1965-1966    1776349-2065186        -                 N.L.A.            21030
              120 / 140         1967-1969    2062141-2791956        -                 N.L.A.            21030
              120 / 140         1970-1982    2791957-6225576       11110              11155             21030
              470 / 485         1976-1982    4208730-6225575       11110              11155             21030
              160               1967-1969    2065190-2763441        -                 N.L.A.            21030
              165               1970-1981     2763442 & Up         11110              11155             21030
              888 / 225 / 233   1971-1977     3106717 & Up         11110              11155             21030
              898 / 228 / 250 / 260  1977-1982  4782330-6225576    11110              11155             21030
              R                   1983        6225577 & Up         11110              11155             21030
              MR / Alpha One Grcs.  1984-1990  6225577 & Up        11120              11155             21030
              MR / Alpha One (CS)  1984-1990  6225577 & Up         11120                -               21030
              Alpha One SS      1986-1989     0A545004 & Up         -                 11155               -
              Alpha One Gen II  1991-1997   0D469859-0K999999      11140              11155             21031
              Alpha One Gen II (CR)  1991-1995  0D469859-0F679999  11140                -               21031
              Alpha One Gen II (CR)  1996-1997  0F680000-0K999999  11140                -               21031
              Alpha One Gen II  1998 & Up     0L100040 & Up        11140              11155             21031
              Alpha One Gen II (CR)  1998 & Up  0L100040 & Up       -                   -               21031

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