Parts for Mercury Marine Model 40, 4 HP (Gnat 2 Cylinder) Gear Housing Assembly (Drive Shaft)
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| # | 1648-5559A10 | GEAR HOUSING ASS'Y, COMP. (SHORT SHAFT) (1 required per assembly) SERIAL #9210546 AND UP |
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1648-5559A10 - Gear Housing Assembly [ More info ] Unavailable |
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1648-7811A 5 - Gear Housing Assembly [ More info ] Unavailable |
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1648-7811A20 - GEAR Housing, NLA [ More info ] Unavailable |
| # | 1648-5559A 2 | GEAR HOUSING ASS'Y, COMP. (SHORT SHAFT) (1 required per assembly) SERIAL #9210545 AND BELOW |
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1648-5559A 2 - Gear Housing Assembly [ More info ] Unavailable |
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| # | 1648-5559A11 | GEAR HOUSING ASS'Y, COMP. (LONG SHAFT) (1 required per assembly) SERIAL #9210546 AND UP |
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1648-5559A11 - Gear Housing Assembly [ More info ] Unavailable |
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1648-7811A 6 - Gear Housing Assembly [ More info ] Unavailable |
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1648-7811A21 - GEAR Housing, NLA [ More info ] Unavailable |
| # | 27-68938A75 | GASKET SET |
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27-68938A75 - Gasket Set [ More info ] Unavailable |
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27-77586A78 - Gasket Set [ More info ] Unavailable |
| # | 1648-5559A 4 | GEAR HOUSING ASS'Y, COMP. (LONG SHAFT) (1 required per assembly) SERIAL #9210545 AND BELOW |
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1648-5559A 4 - Gear Housing Assembly [ More info ] Unavailable |
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| #1 | 1648-5559A 3 | GEAR HOUSING ASSEMBLY, BASIC (1 required per assembly) |
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1648-5559A 3 - Gear Housing Assembly [ More info ] Unavailable |
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1648-7381A 1 - GEAR Housing, NLA [ More info ] Unavailable |
| #2 | 16-68927 | STUD, GEAR HOUSING (2 1/8") - SHORT SHAFT (1 required per assembly) |
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16-68927 - Stud, NLA [ More info ] Unavailable |
| #2 | 16-75321 | STUD, GEAR HOUSING (7 1/4") - LONG SHAFT (1 required per assembly) |
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16-75321 - DISCONTINUED,NLA [ More info ] Unavailable |
| #3 | 16-68928 | STUD, WATER PUMP (2 1/4') (2 required per assembly) |
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16-68928 - Stud, NLA [ More info ]
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| #4 | 16-70741 | STUD, WATER PUMP (1 1/2") (1 required per assembly) |
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16-70741 - STUD,NLA [ More info ] Unavailable |
| #5 | 31-23101 | ROLLER BEARING, GEAR HOUSING - LOWER (1 required per assembly) |
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31-23101 - Roller Bearing - Gear Housing [ More info ]
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| #6 | 68978 | COUPLING, DRIVE SHAFT/PINION (1 required per assembly) |
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68978 - Coupling, NLA [ More info ]
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| #7 | 31-69496 | ROLLER BEARING, GEAR HOUSING - UPPER (1 required per assembly) |
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31-69496 - Roller Bearing, NLA [ More info ] Unavailable |
| #8 | 43-68981 | PINION GEAR (1 required per assembly) |
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43-68981 - Pinion Gear, NLA [ More info ]
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| #9 | 31-68945 | THRUST BEARING, PINION GEAR (1 required per assembly) |
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31-68945 - Bearing, NLA [ More info ] Unavailable |
| #10 | 12-71557 | WASHER, THRUST BEARING (1 required per assembly) |
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12-71557 - Washer, Thrust Bearing, NLA [ More info ]
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| #11 | 45-68983 | DRIVE SHAFT (SHORT SHAFT) (1 required per assembly) |
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45-68983 - Drive Shaft, NLA [ More info ] Unavailable |
| #11 | 45-75310 | DRIVE SHAFT (LONG SHAFT) (1 required per assembly) |
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45-75310 - Drive Shaft, NLA [ More info ] Unavailable |
| #12 | 28-56655 | KEY, IMPELLER DRIVE (1 required per assembly) |
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28-56655 - Key , Priced Individually [ More info ] Unavailable |
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28-8M0032835 - Key [ More info ]
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| #13 | 27-68939 | GASKET, WATER PUMP - LOWER (1 required per assembly) |
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27-68939 - Water Pump Gasket [ More info ]
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| #14 | 46-68986A 1 | WATER PUMP HOUSING ASSEMBLY (1 required per assembly) |
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46-68986A 1 - Housing-B [ More info ] Unavailable |
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46-90844A 1 - Housing Assembly, NLA [ More info ] Unavailable |
| #15 | 26-77066 | OIL SEAL, WATER PUMP (1 required per assembly) |
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26-77066 - Seal - Priced Individually [ More info ]
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26-96063 - Seal - Priced Individually [ More info ]
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26-897153 - Oil Seal - Priced Individually [ More info ]
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18-2010 - Seal 26-96063 [ More info ]
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| #16 | 70977 | INSERT, WATER PUMP (1 required per assembly) |
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70977 - Insert [ More info ] Unavailable |
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| #17 | 12-56681 | WASHER, WATER PUMP (1 required per assembly) |
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12-56681 - Washer, (.203 X .500 X .032) [ More info ]
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128M0204666 - WASHER Note: Priced Individually [ More info ]
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| #18 | 25-74138 | QUAD SEAL, WATER PUMP (1 required per assembly) |
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25-74138 - Quad Seal, Water Pump [ More info ]
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| #19 | 47-68988 | IMPELLER (1 required per assembly) |
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47-68988 - Impeller-B, Priced Individually [ More info ]
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47-89980 - Impeller [ More info ]
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18-3054 - Impeller 47-89980 [ More info ]
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| #20 | 68955 | FACE PLATE, WATER PUMP (1 required per assembly) |
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68955 - Water Pump Face Plate, NLA [ More info ]
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| #21 | 46-68984A 1 | WATER PUMP COVER ASSEMBLY (1 required per assembly) |
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46-68984A 1 - Impeller Housing Cover [ More info ] Unavailable |
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46-90846A 1 - Cover Assembly [ More info ] Unavailable |
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46-95965A 2 - Cover Assembly, NLA [ More info ]
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| #22 | 26-30913 | OIL SEAL, WATER PUMP COVER (1 required per assembly) |
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26-30913 - Seal - Priced Individually [ More info ]
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| #23 | 12-36554 | WASHER, WATER TUBE SEAL (1 required per assembly) |
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12-36554 - Washer - Nylon - Water Tube [ More info ] Unavailable |
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23-86214 - Spacer - Water Tube [ More info ] Unavailable |
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23-13127 - Spacer [ More info ]
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| #24 | 26-36558 | SEAL, WATER TUBE (1 required per assembly) |
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26-36558 - Seal - Priced Individually [ More info ]
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| #24A | 23-75146 | SLEEVE, WATER TUBE GUIDE (1 required per assembly) |
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23-75146 - Sleeve , Priced Individually [ More info ] Unavailable |
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23-31792 - Sleeve , Priced Individually [ More info ] Unavailable |
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23-31792T - Sleeve - Priced Individually [ More info ]
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| #25 | 25-30526 | RING, RUBBER - DRIVE SHAFT (1 required per assembly) |
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25-30526 - O-Ring, Rubber - Centifugal Slinger (drive Shaft) [ More info ]
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| #26 | 12-30164 | WASHER, WATER PUMP STUDS (3 required per assembly) |
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12-30164 - Washer, (.192 X .375 X .0312) [ More info ]
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| #27 | 11-45812 | NUT, WATER PUMP STUDS (3 required per assembly) |
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11-45812 - Nut, (#10-32) [ More info ]
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11-859124 - Nut, (#10-32) Stainless Steel, Nylon Insert [ More info ]
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| #28 | 72418 | SHIFT SHAFT (SHORT SHAFT) (1 required per assembly) |
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72418 - Shift Shaft [ More info ] Unavailable |
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72418T - Shift Shaft, NLA [ More info ] Unavailable |
| #28 | 75307 | SHIFT SHAFT (LONG SHAFT) (1 required per assembly) |
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75307 - Shift Shaft, NLA [ More info ]
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| #29 | 10-28653 | SCREW, VENT - GEAR HOUSING (1/4") (1 required per assembly) |
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10-28653 - Screw - Priced Individually [ More info ]
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| #30 | 12-20262 | WASHER, VENT SCREW (1 required per assembly) |
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12-20262 - Washer, Vent Screw [ More info ] Unavailable |
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19643 - Seal - Priced Individually [ More info ]
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18-4261 - Washer, 19643 [ More info ]
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| #31 | 10-28634 | SCREW, GREASE FILLER (1 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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| #32 | 12-20260 | WASHER, GREASE FILLER SCREW (1 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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