Parts for Mercury Marine Model 500, 50 HP Gear Housing Assembly, Complete (Serial Group No. 6) (Page 1)
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.
#- | 1643-6038A 5 | GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly) (SHORT SHAFT) UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597 |
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1643-6038A 5 - GEAR HOUSING ASSY O NLA [ More info ] Unavailable |
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#- | 1643-6038A 7 | GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly) (LONG SHAFT) UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597 |
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1643-6038A 7 - GEAR HOUSING ASSY O NLA [ More info ] Unavailable |
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#- | 1643-6038A17 | GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly) (SHORT SHAFT) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP |
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1643-6038A17 - GEAR HOUSING O NLA [ More info ] Unavailable |
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#- | 1643-6038A18 | GEAR HOUSING ASSEMBLY, COMPLETE (1 required per assembly) (LONG SHAFT) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP |
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1643-6038A18 - GEAR HOUSING O NLA [ More info ] Unavailable |
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#1 | 1643-6038A 6 | GEAR HOUSING ASSEMBLY (1 required per assembly) |
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1643-6038A 6 - GEAR HOUSING ASSY O NLA [ More info ] Unavailable |
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#2 | 17-46912 | PIN, DOWEL - GEAR HOUSING (2 required per assembly) |
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#3 | 16-33778 | STUD (3 required per assembly) WATER PUMP BODY/BASE TO GEAR HOUSING (2 5/8") |
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#4 | 16-57933 | STUD (2 required per assembly) GEAR HOUSING TO DRIVE SHAFT HOUSING (2 3/16") |
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16-8M0034453 - Stud [ More info ]
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#5 | 31-62091 | BEARING, ROLLER - DRIVE SHAFT (1 required per assembly) |
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#6 | 63850 | SCREEN, WATER INTAKE - STARBOARD (1 required per assembly) |
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#6 | 63851 | SCREEN, WATER INTAKE - PORT (1 required per assembly) |
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63851 - 63851 - SCREEN O [ More info ] Unavailable Replaced by -72849A 1 |
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#7 | 10-36070 | SCREW (1 required per assembly) WATER INTAKE SCREEN TO GEAR HOUSING (1 1/4") |
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#8 | 11-45812 | NUT, WATER INTAKE SCREEN SCREW (1 required per assembly) |
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#9 | 38071 | PLATE, SUPPORT - EXHAUST TUBE SEAL (1 required per assembly) |
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38071 - 38071 - PLATE O [ More info ] Unavailable Replaced by -92815 |
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#10 | 37721 | SEAL, EXHAUST TUBE (1 required per assembly) |
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#11 | 43-55607 | GEAR, PINION - DRIVE SHAFT (1 required per assembly) |
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#12 | 11-55910 | NUT, PINION GEAR TO DRIVE SHAFT (1 required per assembly) |
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#13 | 27-32771 | GASKET, WATER PUMP BASE TO GEAR HOUSING (1 required per assembly) |
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#14 | 25-26855 | "O" RING, WATER PUMP BASE (1 required per assembly) |
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#15 | 46-73640A 1 | WATER PUMP BASE ASSEMBLY (1 required per assembly) |
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#16 | 26-26782 | OIL SEAL, WATER PUMP BASE (1 required per assembly) |
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26-26782 - 26-26782 - OIL SEAL AT 2 O [ More info ] Unavailable Replaced by 26-79831 |
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#17 | 26-23300 | OIL SEAL, WATER PUMP BASE (1 required per assembly) |
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26-23300 - 26-23300 - SEAL Oil O [ More info ] Unavailable Replaced by 26-90562 |
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#18 | 17-35973 | DOWEL PIN, WATER PUMP BASE TO WATER PUMP BODY (2 required per assembly) |
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#19 | 27-32769 | GASKET (1 required per assembly) LOWER - WATER PUMP BASE TO FACE PLATE |
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27-32769 - 27-32769 - GASKET O [ More info ] Unavailable Replaced by 27-19553 |
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#20 | 54705 | PLATE FACE (1 required per assembly) WATER PUMP BASE TO WATER PUMP BODY |
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32768 - Face Plate, Water Pump Base to Water Pump Body [ More info ] |
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#21 | 27-32770 | GASKET UPPER (1 required per assembly) FACE PLATE TO WATER PUMP BODY |
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27-32770 - 27-32770 - GASKET O [ More info ] Unavailable Replaced by 27-19551 |
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#22 | 47-65959 | IMPELLER, WATER PUMP (1 required per assembly) |
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47-65959 - 47-65959 - IMPELLER @4 O [ More info ] Unavailable Replaced by 47-89983 |
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47-89983 - 47-89983 - IMPELLER O [ More info ] Unavailable Replaced by 47-89983T |
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#23 | 28-56662 | KEY, IMPELLER DRIVE (1 required per assembly) |
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28-56662 - 28-56662 - KEY O [ More info ] Unavailable Replaced by 28-8M0032837 |
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#24 | 46-48746A 1 | WATER PUMP BODY ASSEMBLY (1 required per assembly) |
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46-48746A 1 - 46-48746A 1 - BODY ASSY O [ More info ] Unavailable Replaced by 46-77822A 1 |
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#25 | 48753 | INSERT, WATER PUMP BODY (1 required per assembly) |
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#26 | 12-29245 | WASHER, WATER PUMP BODY AND BASE STUDS (3 required per assembly) |
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#27 | 11-36069 | NUT, WATER PUMP BODY AND BASE STUDS (3 required per assembly) |
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#28 | 26-38452 | SEAL, WATER PUMP BODY TO WATER TUBE (1 required per assembly) |
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#29 | 12-38453 | WASHER, CUPPED - WATER TUBE SEAL (1 required per assembly) |
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#30 | 25-20273 | RING, RUBBER - CENTRIFUGAL SLINGER (1 required per assembly) |
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#31 | 10-28634 | SCREW, GREASE FILLER AND VENT HOLE (2 required per assembly) |
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10-28634 - 10-28634 - SCREW (.375-16) O [ More info ] Unavailable Replaced by 10-79953 |
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10-79953 - 10-79953 - SCREW (.375-16 x O [ More info ] Unavailable Replaced by 10-79953A 2 |
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10-79953Q 2 - 10-79953Q 2 - SCREW KIT (.375-1 O [ More info ] Unavailable Replaced by 10-79953Q04 |
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10-79953K04 - Drain Screw - Priced Individually [ More info ] |
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#32 | 12-20260 | WASHER, GREASE FILLER AND VENT HOLE SCREW (2 required per assembly) |
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12-20260 - 12-20260 - WASHER O [ More info ] Unavailable Replaced by 12-19183 |
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12-19183 - 12-19183 - WASHER Fiber O [ More info ] Unavailable Replaced by 12-19183 2 |
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12-19183 2 - 12-19183 2 - WASHER O [ More info ] Unavailable Replaced by 12-19183 3 |
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12-19183Q02 - Seals, Pack of 4 (yes this is actually a pack of 4) [ More info ] |
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#35 | 69787A 1 | SHAFT ASSEMBLY, SHIFT - LOWER (1 required per assembly) UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597 |
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#35 | 76063A 1 | SHAFT ASSEMBLY, SHIFT - LOWER (1 required per assembly) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP |
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#36 | 53-29641 | CLIP, RETAINING - SHIFT SHAFT (1 required per assembly) |
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#37 | 25-25439 | "O" RING, SHIFT SHAFT BUSHING (1 required per assembly) |
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#38 | 23-55419A 1 | BUSHING ASSEMBLY, SHIFT SHAFT (1 required per assembly) |
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23-55419A 1 - 23-55419A 1 - BUSHING ASSY O [ More info ] Unavailable Replaced by 23-77631A 2 |
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#39 | 26-24590 | OIL SEAL, SHIFT SHAFT BUSING (LOWER) (1 required per assembly) |
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#40 | 26-31249 | OIL SEAL, SHIFT SHAFT (UPPER) (1 required per assembly) |
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26-31249 - 26-31249 - OIL SEAL @5 O [ More info ] Unavailable Replaced by 26-46021 |
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26-46021 - 26-46021 - SEAL Oil O [ More info ] Unavailable Replaced by 26-89236 |
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#41 | 12-31266 | WASHER, RUBBER - SHIFT SHAFT BUSHING (1 required per assembly) |
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#42 | 39019 | BASE (1 required per assembly) LOWER - REVERSE LOCKING - NOT PART OF GEAR HOUSING |
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78036 - Reverse Locking Base - Priced Individually [ More info ] |
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#43 | 69542 | CAM, REVERSE LOCKING (1 required per assembly) UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597 |
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#43 | 39021 | CAM, REVERSE LOCKING (1 required per assembly) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP |
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39021 - 39021 - CAM O [ More info ] Unavailable Replaced by -98316 |
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98316 - 98316 - CAM O [ More info ] Unavailable Replaced by -43308 |
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#44 | 45-69164A 2 | DRIVE SHAFT ASSEMBLY (SHORT SHAFT) (1 required per assembly) UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597 |
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45-69164A 2 - 45-69164A 2 - DRIVE SHAFT O [ More info ] Unavailable Replaced by 45-74855A 1 |
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#44 | 45-69165A 2 | DRIVE SHAFT ASSEMBLY (LONG SHAFT) (1 required per assembly) |
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45-69165A 2 - 45-69165A 2 - DRIVE SHAFT O [ More info ] Unavailable Replaced by 45-74854A 1 |
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45-74854A 1 - 45-74854A 1 - DRIVE SHAFT ASSY O [ More info ] Unavailable Replaced by 45-76088A 2 |
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#44 | 45-74855A 1 | DRIVE SHAFT ASSEMBLY (SHORT SHAFT) (1 required per assembly) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP |
#44 | 45-74854A 1 | DRIVE SHAFT ASSEMBLY (LONG SHAFT) (1 required per assembly) |
#45 | 24-20254 | SPRING, COMPRESSION - DRIVE SHAFT (1 required per assembly) |
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#46 | 17-30515 | PIN, DRIVE SHAFT (1 required per assembly) |
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#47 | 23-60242 | SLEEVE, LUBRICTAION - DRIVE SHAFT (1 required per assembly) |
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23-60242 - 23-60242 - SLEEVE O [ More info ] Unavailable Replaced by -88181 |
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#48 | 15-20929A 1 | SHIM, BEARING TI GEAR HOUSING (.OO2-3-5-10) (AR required per assembly) |
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#49 | 31-38146A 1 | ROLLER BEARING ASSEMBLY (1 required per assembly) TAPERED - DRIVE SHAFT |
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#- | 46-73640A2 | WATER PUMP KIT |
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#- | 26-79831A1 | SEAL KIT |
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#- | 27-72486A78 | GASKET SET |
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27-72486A78 - 27-72486A78 - GASKET SET O [ More info ] Unavailable Replaced by 27-72486A79 |
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27-72486A32 - GASKET SET O NLA [ More info ] Unavailable |
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