Parts for Mercury Marine 50 HP (4 Cylinder) Gear Housing (Propeller Shaft)
View diagram and parts list below.
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Aftermarket gearcase may be available for less than $900 USD. 70 HP+ only. Please call.
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
#- | 1643-7406A34 | GEAR HOUSING ASSEMBLY (SHORT SHAFT) MERCURY (1 required per assembly) |
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1643-7406A34 - 1643-7406A34 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 4 |
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1643-9539A 4 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable |
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#- | 1643-7406A35 | GEAR HOUSING ASSEMBLY (LONG SHAFT) MERCURY (1 required per assembly) |
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1643-7406A35 - 1643-7406A35 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 5 |
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1643-9539A 5 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable |
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#- | 1643-7406A43 | GEAR HOUSING ASSEMBLY (X-LONG SHAFT) MERCURY (1 required per assembly) |
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1643-7406A43 - 1643-7406A43 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A10 |
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1643-9539A10 - GEAR HOUSING O NLA [ More info ] Unavailable |
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#- | 1643-7406A38 | GEAR HOUSING ASSEMBLY (SHORT SHAFT) MARINER (1 required per assembly) |
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1643-7406A38 - 1643-7406A38 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 6 |
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1643-9539A 6 - GEAR HUSING ASSEM O NLA [ More info ] Unavailable |
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#- | 1643-7406A39 | GEAR HOUSING ASSEMLBY (LONG SHAFT) MARINER (1 required per assembly) |
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1643-7406A39 - 1643-7406A39 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 7 |
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1643-9539A 7 - GEAR HOUSING ASSE O NLA [ More info ] Unavailable |
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#1 | 1643-7406A16 | GEAR HOUSING ASSEMBLY MERCURY (1 required per assembly) |
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1643-7406A16 - 1643-7406A16 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 1 |
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1643-9539A 1 - 1643-9539A 1 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539T 1 |
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1643-9539T 1 - GEAR HOUSING O NLA [ More info ] Unavailable |
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#1 | 1643-7406A41 | GEAR HOUSING ASSEMBLY MARINER (1 required per assembly) |
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1643-7406A41 - 1643-7406A41 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539A 8 |
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1643-9539A 8 - 1643-9539A 8 - GEAR HOUSING ASSE O [ More info ] Unavailable Replaced by 1643-9539T 8 |
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1643-9539T 8 - ORD 1643-9539T 1 O NLA [ More info ] Unavailable |
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#51 | 76039 | SHIFT CAM (1 required per assembly) |
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76039 - 76039 - CAM Shift Control O [ More info ] Unavailable Replaced by -76039 4 |
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#52 | 15-38374A 1 | SHIM, BEARING CUP TO GEAR HOUSING (.002-3-5-10) (AR required per assembly) |
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#53 | 31-38356A 1 | TAPERED ROLLER BEARING ASSEMBLY (1 required per assembly) |
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#54 | 43-55608A 4 | FORWARD GEAR (1 required per assembly) |
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43-55608A 4 - 43-55608A 4 - GEAR ASSEMBLY For O [ More info ] Unavailable Replaced by 43-55608T 4 |
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#55 | 31-21739 | ROLLER BEARING - FORWARD GEAR (1 required per assembly) |
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#56 | 38441 | CAM FOLLOWER (1 required per assembly) |
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#57 | 20843 | SLIDE, CROSS PIN (1 required per assembly) |
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#58 | 24-38114 | SPRING, RETAINING - CROSS PIN (1 required per assembly) |
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#59 | 52-92911 | RATCHET, SLIDING CLUTCH (1 required per assembly) |
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52-92911 - 52-92911 - RATCHET O [ More info ] Unavailable Replaced by 52-92911T |
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#60 | 17-38113 | CROSS PIN - RATCHET TO PROPELLER SHAFT (1 required per assembly) |
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17-8M0020942 - Pin -cross - Priced Individually [ More info ] |
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#61 | 24-39845 | SPRING, COMPRESSION - CAM FOLLOWER (1 required per assembly) |
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#62 | 44-75365 | PROPELLER SHAFT (1 required per assembly) |
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#63 | 43-79158 | REVERSE GEAR (1 required per assembly) |
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#64 | 12-32004 | WASHER, THRUST - REVERSE GEAR (1 required per assembly) |
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#65 | 30-20839 | BALL BEARING - REVERSE GEAR (1 required per assembly) |
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30-20839 - 30-20839 - BEARING Ball O [ More info ] Unavailable Replaced by 30-20839T |
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#66 | 25-31986 | "O" RING, BEARING CARRIER (1 required per assembly) |
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#67 | 69386A 1 | BEARING CARRIER ASSEMBLY (1 required per assembly) |
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69386A 1 - 69386A 1 - CARRIER ASSEMBLY O [ More info ] Unavailable Replaced by -69386T 1 |
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69386T 1 - CARRIER ASSY-BRG O NLA [ More info ] Unavailable |
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#68 | 31-21700 | ROLLER BEARING - BEARING CARRIER (1 required per assembly) |
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#69 | 26-69188 | OIL SEAL, BEARING CARRIER (1 required per assembly) |
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#70 | 26-69189 | OIL SEAL, BEARING CARRIER (1 required per assembly) |
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#71 | 28-30281 | KEY, LOCATING - BEARING CARRIER (1 required per assembly) |
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#72 | 14-53012 | TAB WASHER, GEAR HOUSING COVER (1 required per assembly) |
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#73 | 11-87763 | NUT, GEAR HOUSING (1 required per assembly) |
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#74 | 31640A 1 | TRIM TAB ASSEMBLY, GEAR HOUSING (1 required per assembly) |
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31640A 1 - 31640A 1 - TRIM TAB ASSEMBLY O [ More info ] Unavailable Replaced by -31640 3 |
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31640 3 - 31640 3 - TRIM TAB O [ More info ] Unavailable Replaced by -31640 4 |
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31640 4 - 31640 4 - TRIM TAB O [ More info ] Unavailable Replaced by 97-31640Q 4 |
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#75 | 10-66024 | SCREW, TRIM TAB TO GEAR HOUSING (1 required per assembly) |
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#76 | 12-45175 | WASHER, DRIVE SHAFT HOUSING STUD (3/8") (1 required per assembly) |
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12-45175 - 12-45175 - WASHER (.406 x .7 O [ More info ] Unavailable Replaced by 12-856774 |
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#77 | 11-34863 | NUT, DRIVE SHAFT HOUSING STUD (3/8") (1 required per assembly) |
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11-34863 - 11-34863 - NUT (.375-24) O [ More info ] Unavailable Replaced by 11-826709113 |
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#78 | 12-65791 | WASHER, HOUSING TO STUD (7/16") (1 required per assembly) |
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#79 | 11-34933 | NUT, STUD (7/16") (1 required per assembly) |
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#80 | 73345A 1 | THRUST HUB, FRONT (1 required per assembly) |
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#81 | 14-76281 | TAB WASHER, PROPELLER NUT (1 required per assembly) |
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#82 | 11-69578A 1 | PROPELLER NUT (1 required per assembly) |
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11-69578A 1 - 11-69578A 1 - PROP NUT KIT O [ More info ] Unavailable Replaced by 11-69578Q 1 |
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11-69578Q 1 - Prop Nut Kit - Priced Individually [ More info ] |
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11-69578T 1 - Prop Nut Kit - Priced Individually [ More info ] |
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#- | 72486A32 | GASKET SET |
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27-72486A32 - GASKET SET O NLA [ More info ] Unavailable |
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