Parts for Mercury Marine 18 HP Gear Housing (Drive Shaft) (Screw Inserted From Top)
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Try our 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.
# | 26-85090A1 | SEAL REPAIR KIT (-- required per assembly) |
# | 1665-8669A 3 | GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly) SHORT SHAFT |
1665-8669A 3 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669A11 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669A13 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669T13 - Gear Housing Sh- Black [ More info ] Unavailable |
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# | 27-41499A84 | GASKET SET (-- required per assembly) |
27-41499A84 - Engine Gasket Set [ More info ] Unavailable |
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27-41499A87 - Engine Gasket Set [ More info ] Unavailable |
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# | 1665-8669A 4 | GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly) LONG SHAFT |
1665-8669A 4 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669A12 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669A14 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669T14 - Gearcase 20/25 2S Lg [ More info ] Unavailable |
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# | 46-99157A2 | WATER PUMP REPAIR KIT (-- required per assembly) |
46-99157A 2 - Water Pump Kit [ More info ] Unavailable |
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#1 | 1665-8669A 2 | GEAR HOUSING ASSEMBLY (1 required per assembly) |
1665-8669A 2 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669A10 - Gear Housing Assembly [ More info ] Unavailable |
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1665-8669A21 - Gear Housing Assembly [ More info ] Unavailable |
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#2 | 35-41134 | SCREEN, WATER INLET - STARBOARD (1 required per assembly) |
35-41134 - Screen [ More info ] Unavailable |
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#2 | 35-41133 | SCREEN, WATER INLET - PORT (1 required per assembly) |
#3 | 10-40031112 | SCREW, SCREEN TO GEAR HOUSING (40MM) (1 required per assembly) |
#4 | 11-40026 3 | NUT, SCREEN SCREW (1 required per assembly) |
11-40026 3 - NUT,NLA [ More info ] Unavailable |
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#5 | 31-41326 | ROLLER BEARING, UPPER (1 required per assembly) |
31-41326 - Roller Bearing [ More info ] Unavailable |
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#6 | 26-99325 | SEAL, GEAR HOUSING (2 required per assembly) |
#7 | 17-85500 | DOWEL PIN, GEAR HOUSING (2 required per assembly) |
#8 | 31-98294A 1 | ROLLER BEARING ASSEMBLY (1 required per assembly) |
#9 | 43-98302 | PINION GEAR (1 required per assembly) |
#10 | 10-49908 | SCREW, PINION GEAR (1 required per assembly) |
#11 | 45-99199 | DRIVE SHAFT - SHORT SHAFT (1 required per assembly) |
#11 | 45-99198 | DRIVE SHAFT - LONG SHAFT (1 required per assembly) |
45-99198 - Drive Shaft [ More info ] Unavailable |
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#12 | 25-99691 | "O" RING (1 required per assembly) |
#13 | 22-67892 | SCREW, DRAIN - MAGNETIC (1 required per assembly) |
22-67892 - Plug - Priced Individually [ More info ] Unavailable |
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22-67892A 1 - Drain Plug [ More info ] Unavailable |
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22-67892A05 - Drain Plug Kit [ More info ] Unavailable |
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22-67892A06 - Drain Plug Kit [ More info ] Unavailable |
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22-8M0058389 - Screw Kit - Priced Individually [ More info ] |
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#14 | 10-79953 | SCREW, GREASE FILLER (1 required per assembly) |
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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10-79953K04 - Drain Screw - Priced Individually [ More info ] |
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#15 | 12-20260 | WASHER, DRAIN AND FILLER SCREW (2 required per assembly) |
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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12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ] |
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#16 | 85562A 1 | CAM ASSEMBLY, SHIFT (1 required per assembly) |
85562A 1 - Cam, NLA [ More info ] Unavailable |
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#17 | 17-85096 | DRIVE PIN, SHIFT CAM (1 required per assembly) |
#18 | 17-85593 | ROLL PIN, SHIFT SHAFT (1 required per assembly) |
#19 | 12-29245 | WASHER, SHIFT SHAFT (1 required per assembly) |
12-8M0204649 - WASHER Note: Priced Individually [ More info ] |
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#20 | 24-93007 | SPRING, SHIFT SHAFT (1 required per assembly) |
#21 | 12-85091 | WASHER, SHIFT SHAFT (1 required per assembly) |
#22 | 25-85594 | "O" RING, SHIFT SHAFT (1 required per assembly) |
#23 | 25-20365 | "O" RING, SHIFT SHAFT RETAINER (1 required per assembly) |
#24 | 93878 | RETAINER, SHIFT SHAFT (1 required per assembly) |
93878 - Shift Retainer [ More info ] Unavailable |
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#25 | 85552 | BOOT, SHIFT SHAFT (1 required per assembly) |
85552 - Boot [ More info ] Unavailable |
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$4.59 $3.93 |
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#26 | 85126 | SHIFT SHAFT - SHORT SHAFT (1 required per assembly) |
#26 | 86293 | SHIFT SHAFT - LONG SHAFT (1 required per assembly) |
#27 | 27-99326 | GASKET, WATER PUMP (1 required per assembly) |
27-99326 - Water Pump Gasket [ More info ] Unavailable |
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#28 | 85083 | FACE PLATE (1 required per assembly) |
#29 | 12-86645 | WASHER, IMPELLER (2 required per assembly) |
12-86645 - Washer,impeller [ More info ] Unavailable |
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12-8M0027721 - Washer [ More info ] Unavailable |
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128M0204722 - WASHER [ More info ] Unavailable |
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#30 | 28-85119 | KEY, IMPELLER DRIVE (1 required per assembly) |
28-85119 - Key - Priced Individually [ More info ] Unavailable |
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#31 | 47-85089 | IMPELLER (1 required per assembly) |
47-85089 - Impeller [ More info ] Unavailable |
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47-85089 1 - Impeller [ More info ] Unavailable |
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47-8M0027792 - Impeller [ More info ] Unavailable |
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47-85089 3 - Water Pump Impeller [ More info ] Unavailable |
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47-85089 10 - Impeller [ More info ] Unavailable |
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#32 | 25-69202 | "O" RING, WATER PUMP (1 required per assembly) |
#33 | 46-99157A 1 | WATER PUMP ASSEMBLY (1 required per assembly) |
46-99157A 1 - Water Pump Housing [ More info ] Unavailable |
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#34 | 10-40003 5 | SCREW, WATER PUMP TO GEAR HOUSING (16MM) (4 required per assembly) |
#35 | 12-89302 | WASHER, WATER PUMP SCREW (4 required per assembly) |
#36 | 23-85095 | BUSHING, WATER PUMP SCREW (4 required per assembly) |
23-85095 - Bushing - Priced Individually [ More info ] Unavailable |
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238M0214959 - BUSHING Note: Priced Individually [ More info ] |
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#37 | 26-85090 | SEAL, WATER TUBE (1 required per assembly) |
26-85090 - Seal - Priced Individually [ More info ] Unavailable |
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#38 | 25-86203 | RING, DRIVE SHAFT - RUBBER (1 required per assembly) |