Parts for Mercury Marine 650 (4 Cylinder) Gear Housing Assembly, Complete (Page 1)
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| # | 1623-3912A 5 | GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) (1 required per assembly) SERIAL 02803562-02874263 |
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1623-3912A 5 - Gear Housing Assembly [ More info ] Unavailable |
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1623-4021A 5 - Gear Housing Assembly [ More info ] Unavailable |
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1623-5246A 6 - Gear Housing [ More info ] Unavailable |
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1623-5246A13 - Gear Housing Assembly [ More info ] Unavailable |
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1623-5892A 4 - Gear Housing Assembly [ More info ] Unavailable |
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1623-6052A 3 - Gear Housing Assembly [ More info ] Unavailable |
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1623-6053A13 - Gear Housing Assembly [ More info ] Unavailable |
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1623-6053A23 - Gear Housing Assembly [ More info ] Unavailable |
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1655-7333A25 - GEAR Housing, NLA [ More info ] Unavailable |
| # | 1623-4021A 4 | GEAR HOUSING ASSEMBLY, COMPLETE (SHORT SHAFT) (1 required per assembly) SERIAL 02997339-09999999 |
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1623-4021A 4 - Gear Housing Assembly [ More info ] Unavailable |
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1623-5246A 5 - Gear Housing [ More info ] Unavailable |
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1623-5246A12 - Gear Housing Assembly [ More info ] Unavailable |
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1623-5892A 3 - Gear Housing Assembly [ More info ] Unavailable |
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1623-6047A 2 - Gear Housing Assembly [ More info ] Unavailable |
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1623-6048A 7 - Gear Housing Assembly [ More info ] Unavailable |
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1623-7339A 2 - GEAR Housing, NLA [ More info ] Unavailable |
| # | 1623-3912A 4 | GEAR HOUSING ASSEMBLY, COMPLETE (SHORT SHAFT) (1 required per assembly) SERIAL 02803562-02874263 |
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1623-3912A 4 - Gear Housing Assembly [ More info ] Unavailable |
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| # | 1623-4021A 5 | GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) (1 required per assembly) SERIAL 02997339-09999999 |
| #1 | 1623-3912A 6 | GEAR HOUSING ASSEMBLY (1 required per assembly) SERIAL #2803562-#2874263 |
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1623-3912A 6 - Gear Housing Assembly [ More info ] Unavailable |
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1623-3912A 7 - Gear Housing [ More info ] Unavailable |
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1623-5244A14 - Gear Housing,NLA [ More info ] Unavailable |
| #1 | 1623-4021A 6 | GEAR HOUSING ASSEMBLY (1 required per assembly) SERIAL #2997339-09999999 |
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1623-4021A 6 - Gear Housing Assembly [ More info ] Unavailable |
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1623-5246A 7 - Gear Housing Assembly [ More info ] Unavailable |
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1623-5892A 5 - Gear Housing Assembly [ More info ] Unavailable |
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1623-6052A 4 - GEAR Housing, NLA [ More info ] Unavailable |
| #2 | 23-56513 | SLEEVE, LUBRICATION (1 required per assembly) SERIAL #2997339-09999999 |
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23-56513 - Sleeve [ More info ]
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| #3 | 55662 | SCREEN, WATER INLET EARLY MODELS ONLY (2 required per assembly) |
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55662 - Screen, NLA [ More info ]
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| #4 | 24-57430 | SPRING, WATER INLET SCREEN EARLY MODELS ONLY (1 required per assembly) |
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24-57430 - Spring, Water Inlet Screen(Early Models Only) NLA [ More info ]
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| #5 | 17-21438 | PIN, GEAR HOUSING (1 required per assembly) |
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17-21438 - PIN-DOWEL,NLA [ More info ] Unavailable |
| #6 | 16-57921 | STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (1 required per assembly) |
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| #7 | 16-57920 | STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (2 1/16") (2 required per assembly) |
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16-57920 - Stud [ More info ] Unavailable |
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16-57920 1 - Stud [ More info ] Unavailable |
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16-57920 3 - Stud [ More info ] Unavailable |
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168M0133358 - Stud [ More info ] Unavailable |
| #8 | 16-56297 | STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 3/8") (1 required per assembly) |
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16-56297 2 - Stud [ More info ] Unavailable |
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16-8M0034463 - Stud [ More info ]
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| #9 | 16-57919 | STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 5/16") (2 required per assembly) |
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16-57919 - Stud, NLA [ More info ]
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| #10 | 31-32898 | BEARING, ROLLER - DRIVE SHAFT (1 required per assembly) |
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31-32898 - Roller Bearing - Drive Shaft [ More info ]
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31-32898T - Bearing [ More info ] Unavailable |
| #11 | 45-47433 | DRIVE SHAFT (SHORT SHAFT) (1 required per assembly) SERIAL #2803562-#2874263 |
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45-47433 - Drive Shaft, NLA [ More info ]
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| #11 | 45-47434 | DRIVE SHAFT (LONG SHAFT) (1 required per assembly) SERIAL #2803562-#2874263 |
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45-47434 - Drive Shaft, NLA [ More info ] Unavailable |
| #11 | 45-59117A 1 | DRIVE SHAFT ASSEMBLY (SHORT SHAFT) (1 required per assembly) SERIAL #2997339-09999999 |
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45-59117A 1 - Drive Shaft Assembly, NLA [ More info ]
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| #11 | 45-59116A 1 | DRIVE SHAFT ASSEMBLY (LONG SHAFT) (1 required per assembly) SERIAL #2997339-09999999 |
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45-59116A 1 - Drive Shaft Assembly, NLA [ More info ]
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| #12 | 24-34576 | SPRING, COMPRESSION - DRIVE SHAFT (1 required per assembly) SERIAL #2997339-09999999 |
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24-34576 - Spring, Compression - Drive Shaft,NLA [ More info ]
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| #13 | 17-30545 | PIN, COMPRESSION SPRING RETAINING (1 required per assembly) SERIAL #2997339-09999999 |
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17-30545 - Pin - Priced Individually [ More info ]
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| #14 | 43-53981 | GEAR, PINION - DRIVE SHAFT (1 required per assembly) SERIAL #2803562-#2874263 |
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43-53981 - Gear, Pinion - Drive Shaft, NLA [ More info ]
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| #14 | 43-56518 | GEAR, PINION - DRIVE SHAFT (1 required per assembly) SERIAL #2997339-09999999 |
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43-56518 - Gear, Pinion - Drive Shaft [ More info ]
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| #15 | 11-35921 | NUT, PINION GEAR TO DRIVE SHAFT (1 required per assembly) |
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11-35921 - Nut, (.625-18) [ More info ]
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18-3719 - Nut, 11-35921, 314730 [ More info ]
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18-2359 - Nut Kit [ More info ]
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| #16 | 15-30278A 1 | SHIM, DRIVE SHAFT BALL BEARING TO GEAR HOUSING (.002-3-5-10 (AR required per assembly) SERIAL #2803562-#2874263 |
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15-30278A 1 - Shim Set, NLA [ More info ]
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| #17 | 30-20464 | BEARING, BALL - DRIVE SHAFT (1 required per assembly) SERIAL #2803562-#2874263 |
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30-20464 - Ball Bearing [ More info ] Unavailable |
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30-63326 - Ball Bearing [ More info ] Unavailable |
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30-63326T - Ball Bearing [ More info ]
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18-1153 - Bearing 30-63326 [ More info ]
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| #18 | 53-30726 | RING, RETAINING - BALL BEARING (1 required per assembly) SERIAL #2803562-#2874263 |
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53-30726 - Snap Ring, NLA [ More info ]
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| #20 | 15-57007A 1 | SHIM, TAPERED ROLLER BEARING TO GEAR HOUSING (.002-3-5-10) (AR required per assembly) SERIAL #2997339-09999999 |
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15-57007A 1 - Shim Set [ More info ]
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18-2295 - Shim Set, 15-57007A 1 [ More info ]
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| #21 | 31-33138A 1 | TAPERED ROLLER BEARING ASSEMBLY, DRIVE SHAFT (1 required per assembly) SERIAL #2997339-09999999 |
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31-33138A 1 - Tapered Roller Bearing [ More info ]
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| #22 | 27-32438 | GASKET, WATER PUMP BASE TO GEAR HOUSING (1 required per assembly) SERIAL 02803562-02874263 |
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27-32438 - Water Pump Base To Gear Housing Gasket [ More info ]
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18-2801-9 - Gasket 27-32438 2-Pack [ More info ]
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| #22 | 27-33146 | GASKET, WATER PUMP BASE TO GEAR HOUSING (1 required per assembly) SERIAL 02997339-09999999 |
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27-33146 - Water Pump Base Gasket [ More info ] Unavailable |
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27-85610 - Water Pump To Gear Housing Gasket [ More info ]
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27-85610 1 - Gasket - Priced Individually [ More info ]
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27-856704 - Water Pump To Gear Housing Gasket [ More info ]
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27-8M0214962 - GASKET @5 [ More info ] Unavailable |
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18-2826-9 - Gasket 27-33146 2-Pack [ More info ]
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| #23 | 25-30224 | "O" RING, WATER PUMP BASE (1 required per assembly) SERIAL 02803562-02874263 |
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25-30224 - O-ring, (1.859 X .139) [ More info ]
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25-8M0204651 - O RING Note: Priced Individually [ More info ]
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18-7173-9 - O-Ring (PK5) 310327, 25-30224 [ More info ]
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| #23 | 25-33145 | "O" RING, WATER PUMP (1 required per assembly) SERIAL 02997339-09999999 |
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25-33145 - O-ring, (1.984 X .139) [ More info ]
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25-8M0214923 - O RING @5 [ More info ] Unavailable |
| #24 | 46-48747A 1 | WATER PUMP BASE ASSEMBLY (1 required per assembly) SERIAL 02803562-02874263 |
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46-48747A 1 - Base Assembly [ More info ]
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| #24 | 46-58618A 1 | WATER PUMP BASE ASSEMBLY (1 required per assembly) SERIAL 02997339-09999999 |
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46-58618A 1 - Base Assembly [ More info ]
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| #25 | 26-31489 | OIL SEAL, WATER PUMP BASE (1 required per assembly) |
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26-31489 - Oil Seal - Priced Individually [ More info ] Unavailable |
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26-94038 - Seal - Priced Individually [ More info ]
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18-2007 - Seal 26-94038 [ More info ]
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| #26 | 26-31507 | OIL SEAL, WATER PUMP BASE (1 required per assembly) SERIAL 02803562-02874263 |
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26-31507 - OIL Seal , Priced Individually [ More info ] Unavailable |
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26-79884 - Oil Seal [ More info ] Unavailable |
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18-2026 - Seal, 321453 [ More info ]
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18-2013 - Seal, 26-16977 [ More info ]
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| #26 | 26-55682 | OIL SEAL, WATER PUMP BASE (1 required per assembly) SERIAL 02997339-09999999 |
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26-55682 - Seal - Priced Individually [ More info ]
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18-2050 - Seal, 26-55682 [ More info ]
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| #27 | 17-35973 | DOWEL PIN, WATER PUMP BASE TO WATER PUMP (2 required per assembly) |
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17-35973 - Pin -Dowel - Priced Individually [ More info ]
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| #28 | 27-32433 | GASKET, LOWER - WATER PUMP BASE TO FACE PLATE (1 required per assembly) |
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27-32433 - Lower Water Pump Gasket [ More info ] Unavailable |
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27-85608 - Water Pump Gasket [ More info ] Unavailable |
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27-85608 1 - Gasket - Priced Individually [ More info ] Unavailable |
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27-8M0090319 - Water Pump Gasket - Priced Individually [ More info ]
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18-2914-9 - Gasket 27-85608 2-Pack [ More info ]
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| #29 | 32435 | PLATE, FACE - WATER PUMP BASE TO WATER PUMP BODY (1 required per assembly) |
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32435 - Face Plate - Priced Individually [ More info ] Unavailable |
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32435 1 - Face Plate [ More info ]
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8M0204677 - Wear Plate [ More info ]
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| #30 | 27-32434 | GASKET, UPPER - FACE PLATE TO WATER PUMP BODY (1 required per assembly) |
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27-32434 - Upper Water Pump Gasket [ More info ] Unavailable |
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27-85609 - Water Pump Gasket [ More info ] Unavailable |
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27-85609 1 - Gasket , Priced Individually [ More info ] Unavailable |
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27-858524 - Water Pump Base Gasket [ More info ]
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18-2915-9 - Gasket 27-858524 2-Pack [ More info ]
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| #31 | 46-48743A 1 | WATER PUMP BODY ASSEMBLY (1 required per assembly) |
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46-48743A 1 - BODY ASSY [ More info ] Unavailable |
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46-64141A 1 - Water Pump Body [ More info ] Unavailable |
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46-96148A 1 - Water Pump Body Assembly [ More info ] Unavailable |
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46-96148T 1 - Water Pump Body [ More info ]
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18-3116 - Housing 46-96148A1 [ More info ]
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| #32 | 48752 | INSERT, WATER PUMP BODY (1 required per assembly) |
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48752 - Water Pump Insert, Priced Individually [ More info ]
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48752T - Water Pump Insert - Priced Individually [ More info ]
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18-3114 - SS Cup, 48752 [ More info ]
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| #34 | 26-38970 | SEAL, RUBBER - WATER INLET TUBE (1 required per assembly) |
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26-38970 - Seal - Priced Individually [ More info ]
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18-3110 - Seal, 26-38970 [ More info ]
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| #35 | 47-30221 | IMPELLER, WATER PUMP (1 required per assembly) |
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47-30221 - Impeller, Priced Individually [ More info ] Unavailable |
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47-65960 - Impeller, Priced Individually [ More info ] Unavailable |
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47-89984 - Impeller [ More info ] Unavailable |
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47-89984 2 - Impeller [ More info ] Unavailable |
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47-89984 4 - Impeller [ More info ] Unavailable |
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47-89984T 4 - Impeller [ More info ]
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18-3017 - Impeller 47-89984 [ More info ]
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| #36 | 28-56654 | KEY, IMPELLER DRIVE (1 required per assembly) |
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28-56654 - Drive Key - Priced Individually [ More info ]
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28-8M0032834 - Key - Priced Individually [ More info ]
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28-8M0214992 - KEY @5 [ More info ] Unavailable |
| #37 | 10-30720 | SCREW, WATER PUMP BODY TO GEAR HOUSING (2 1/4") (1 required per assembly) |
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10-30720 - Screw, NLA [ More info ]
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| #38 | 13-26992 | LOCKWASHER, WATER PUMP BODY SCREW (1 required per assembly) |
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13-26992 - LockWasher - Priced Individually [ More info ]
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| #39 | 12-29245 | WASHER, WATER PUMP BODY FASTENING SCREW AND STUD (3 required per assembly) |
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12-29245 - Washer [ More info ]
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12-8M0204649 - WASHER Note: Priced Individually [ More info ]
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| #40 | 11-35045 | NUT, WATER PUMP BODY FASTENING STUD (2 required per assembly) |
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11-35045 - Nut (1/4-28) [ More info ] Unavailable |
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11-826709109 - Nut, (.250-28) Stainless Steel [ More info ]
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| #41 | 12-36001 | WASHER, WATER PUMP BODY FASTENING STUD (1 required per assembly) |
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12-36001 - Washer - Priced Individually [ More info ]
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18-4270 - Washer 12-36001 [ More info ]
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| #42 | 11-45592 | NUT, WATER PUMP BODY FASTENING STUD (1 required per assembly) |
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11-45592 - Nut (5/16-24) [ More info ]
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11-826709111 - Nut, (.312-24) Stainless Steel [ More info ]
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18-3723-9 - Lock Nut, 11-45592, 5PK [ More info ]
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| #43 | 25-30271 | RING, RUBBER - CENTRIFUGAL SLINGER (DRIVE SHAFT) (1 required per assembly) |
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25-30271 - Ring - Priced Individually [ More info ] Unavailable |
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25-8M0214918 - WATER PUMP HSG RUBBER RING O/B [ More info ]
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18-7426-9 - O-Ring (PK2) 25-30271 [ More info ]
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| #44 | 23-29804 | SLEEVE, GUIDE - WATER INLET TUBE (1 required per assembly) |
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23-29804T - Sleeve - Priced Individually [ More info ]
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18-3109 - Tube 23-29804 [ More info ]
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| #45 | 25-30613 | "O" RING, UPPER - DRIVE SHAFT (1 required per assembly) SERIAL #2803562-0#287426 |
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25-30613 - O-ring, Upper Drive Shaft [ More info ]
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25-8M0214919 - O RING @5 [ More info ] Unavailable |
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18-7158-9 - (PK5) O-Ring 25-30613 [ More info ]
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| #46 | 37641 | SEAL, EXHAUST TUBE (1 required per assembly) |
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37641 - Seal , Priced Individually [ More info ] Unavailable |
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37641001 - Seal - Priced Individually [ More info ]
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| #47 | 38051 | PLATE, SUPPORT - EXHAUST TUBE SEAL (1 required per assembly) |
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38051 - Support, Exhaust Tube Seal Plate [ More info ] Unavailable |
| #48 | 55421A 1 | SHAFT ASSEMBLY, SHIFT - LOWER (1 required per assembly) |
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55421A 1 - Shaft Assembly [ More info ] Unavailable |
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76062A 1 - Shift Shaft Assembly(Long) PNLA [ More info ]
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| #49 | 53-29641 | "E" RING, RETAINING, LOWER SHIFT SHAFT (1 required per assembly) |
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53-29641 - E Ring - Priced Individually [ More info ]
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18-4295-9 - Clip, 53-29461, 2PK [ More info ]
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| #50 | 25-25439 | "O" RING, SHIFT SHAFT BUSHING (1 required per assembly) |
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25-25439 - O-Ring, Shaft Shaft Bushing [ More info ]
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18-7420-9 - O-Ring (PK5) 25-21836 [ More info ]
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| #51 | 23-55419A 1 | BUSHING ASSEMBLY, SHIFT SHAFT (1 required per assembly) |
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23-55419A 1 - Bushing [ More info ] Unavailable |
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23-77631A 2 - Bushing Assembly [ More info ]
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18-2155 - Bushing, 23-77631A2 [ More info ]
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| #52 | 26-24590 | OIL SEAL, SHIFT SHAFT BUSHING (LOWER) (1 required per assembly) |
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26-24590 - Seal - Priced Individually [ More info ]
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18-2048 - Seal 26-24590 [ More info ]
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| #52 | 26-31249 | OIL SEAL, SHIFT SHAFT BUSHING (UPPER) (1 required per assembly) |
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26-31249 - Oil Seal - Priced Individually [ More info ] Unavailable |
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26-46021 - Oil Seal - Priced Individually [ More info ] Unavailable |
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26-89236 1 - Seal [ More info ]
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18-2009 - Seal, 26-89236 [ More info ]
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| #53 | 12-31266 | WASHER, RUBBER - SHIFT SHAFT BUSHING (1 required per assembly) |
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12-31266 - Washer (rubber) [ More info ]
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| #54 | 39019 | SPACER, LOWER - REVERSE LOCKING (1 required per assembly) |
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39019 - Base , Priced Individually [ More info ] Unavailable |
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78036 - Reverse Locking Base - Priced Individually [ More info ]
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| #55 | 39021 | CAM, REVERSE LOCKING (1 required per assembly) |
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39021 - Cam , Priced Individually [ More info ] Unavailable |
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98316 - Cam [ More info ] Unavailable |
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43308 - Reverse Locking Cam [ More info ] Unavailable |
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43308 1 - Cam [ More info ] Unavailable |
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| #56 | 10-28634 | SCREW, GREASE FILLER AND VENT HOLE (2 required per assembly) |
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10-28634 - Drain Screw ONLY, Priced Individually [ More info ] Unavailable |
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10-79953 - Drain Screw ONLY, Priced Individually [ More info ] Unavailable |
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10-79953A 2 - Drain Screw Kit [ More info ] Unavailable |
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10-79953Q 2 - Screw Kit - Priced Individually [ More info ] Unavailable |
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10-79953Q04 - Screw Kit - Priced Individually [ More info ]
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18-2244 - Plug Kit, 10-79953A2 [ More info ]
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10-79953K04 - Drain Screw - Priced Individually [ More info ]
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| #57 | 12-20260 | WASHER, GREASE FILLER AND VENT HOLE SCREW (2 required per assembly) |
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12-20260 - Sealing Washer [ More info ] Unavailable |
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12-19183 - Washer (3/8 Inch Screw) [ More info ] Unavailable |
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12-19183 2 - Washer - Priced Individually [ More info ] Unavailable |
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12-19183 3 - Seal -Blue - Priced Individually [ More info ]
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18-2945-9 - Gasket 12-19183 2-Pack [ More info ]
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12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ]
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12-19183K02 - Seal, Pack of 4 [ More info ]
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| #58 | 19-48750 | PLUG, GEAR HOUSING FLUSHING HOLE (1 required per assembly) |
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19-48750 - Plug - Priced Individually [ More info ]
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| #59 | 12-49221 | WASHER, GEAR HOUSING FLUSHING HOLE PLUG (1 required per assembly) |
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12-49221 - Washer, (.187 X .500 X .062) Neoprene [ More info ] Unavailable |
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12-8M0204663 - Washer, Sold Individually [ More info ]
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