Yamaha Outboard Lower Gearcase Parts Diagram
The diagram below is applicable for the following models:
- V4 (1984-1992)
| Ref | Description | Part # | Replaces | Qty |
|---|---|---|---|---|
| 1 | Gearcase housing | - | 6E5-45301-03-EK | 1 |
| 2 | Shift rod cover plate | - | 6E5-45321-00-00 | 1 |
| 3 | Shift rod cover bolt | - | 97395-06020-00 | 3 |
| 4 | Washer | - | 90209-06M04-00 | 3 |
| 5 | Plate o-ring | - | 93210-05867-00 | 1 |
| 6 | Shift rod assembly | - | 6E5-44150-01-00 | 1 |
| 7 | Circlip | - | 99001-08600-00 | 1 |
| 8 | Needle bearing | - | 93315-628U9-00 | 1 |
| 9 | Drive shaft sleeve | - | 6E5-45536-00-00 | 1 |
| 10 | Drive shaft (long) | - | 6E5-45501-01-00 | 1 |
| Drive shaft (extra-long) | - | 6E5-45501-21-00 | 1 | |
| 11 | Impeller key | - | 90280-04M05-00 | 1 |
| 12 | Housing o-ring | - | 93210-54534-00 | 1 |
| 13 | Tapered bearing | - | 93341-930U0-00 | 1 |
| 14 | Shim (0.10mm) | - | 6E5-45587-01-10 | AR |
| Shim (0.12mm) | - | 6E5-45587-01-12 | AR | |
| Shim (0.15mm) | - | 6E5-45587-01-15 | AR | |
| Shim (0.18mm) | - | 6E5-45587-01-18 | AR | |
| Shim (0.30mm) | - | 6E5-45587-01-30 | AR | |
| Shim (0.40mm) | - | 6E5-45587-01-40 | AR | |
| Shim (0.50mm) | - | 6E5-45587-01-50 | AR | |
| 15 | Needle bearing | - | 93315-430V5-00 | 1 |
| 16 | Bearing housing | - | 6E5-45331-00-94 | 1 |
| 17 | Bearing housing bolt | - | 97395-08025-00 | 4 |
| 18 | Washer | - | 92990-08600-00 | 4 |
| 19 | Drive shaft seal | SIERRA-18-0265 | 93101-28M16-00 | 2 |
| 20 | Oil seal cover | - | 6E5-45344-00-00 | 1 |
| 21 | Wear plate gasket | SIERRA-18-0244 | 6E5-44315-A0-00 | 1 |
| 22 | Wear plate | SIERRA-18-3344 | 6G5-44323-00-00 | 1 |
| 23 | Impeller | SIERRA-18-3071 | 6E5-44352-00-00 | 1 |
| 24 | Water pump insert | - | 6E5-44322-00-00 | 1 |
| 25 | Water pump o-ring | SIERRA-18-7485 | 93210-86M38-00 | 1 |
| 26 | Water pump o-ring | SIERRA-18-7483 | 93210-37M67-00 | 1 |
| 27 | Water pump housing pin | - | 93606-12019-00 | 2 |
| 28 | Water pump housing | SIERRA-18-3170 | 6E5-44311-00-00 | 1 |
| 29 | Water seal damper | - | 6E5-44365-00-00 | 1 |
| 30 | Pump housing cover | - | 6E5-44312-00-00 | 1 |
| 31 | Water pump bolt | - | 97080-08045-00 | 4 |
| 32 | Washer | - | 90209-08M02-00 | 4 |
| 33 | Hose nipple | - | 6E5-45378-00-00 | 1 |
| 34 | Lower drain plug | SIERRA-18-2374 | 688-45341-00-00 | 1 |
| 35 | Drain plug gasket | SIERRA-18-4698 | 90430-08020-00 | 1 |
| 36 | Upper drain plug | - | 90340-08M04-00 | 1 |
| 37 | Drain plug gasket | SIERRA-18-4698 | 90430-08020-00 | 1 |
| 38 | Locating pin | - | 93608-12M05-00 | 2 |
| 39 | Water inlet cover (port) | - | 688-45214-02-00 | 1 |
| 40 | Water inlet cover (starboard) | - | 688-45214-02-00 | 1 |
| 41 | Water inlet screw | - | 90142-05M03-00 | 1 |
| 42 | Water inlet nut | - | 90185-05002-00 | 1 |
| 43 | Bolt | - | 97395-10070-00 | 1 |
| 44 | Bolt | - | 97395-10070-00 | 1 |
| 45 | Washer | - | 92990-10100-00 | 1 |
| 46 | Washer | - | 92990-10100-00 | 1 |
| 47 | Trim tab | SIERRA-18-6097A | 6E5-45371-01-00 | 1 |
| 48 | Trim tab bolt | - | 90105-10M00-00 | 1 |
| 49 | Pinion gear | - | 6E5-45551-02-00 | 1 |
| 50 | Pinion nut | - | 90170-16M01-00 | 1 |
| 51 | Shim (0.10mm) | - | 6E5-45567-01-10 | AR |
| Shim (0.12mm) | - | 6E5-45567-01-12 | AR | |
| Shim (0.15mm) | - | 6E5-45567-01-15 | AR | |
| Shim (0.18mm) | - | 6E5-45567-01-18 | AR | |
| Shim (0.30mm) | - | 6E5-45567-01-30 | AR | |
| Shim (0.40mm) | - | 6E5-45567-01-40 | AR | |
| Shim (0.50mm) | - | 6E5-45567-01-50 | AR | |
| 52 | Forward gear bearing | - | 93332-000U7-00 | 1 |
| 53 | Needle bearing | - | 93315-425U7-00 | 2 |
| 54 | Forward gear | - | 6E5-45560-01-00 | 1 |
| 55 | Shifter | - | 6E5-45641-01-00 | 1 |
| 56 | Detent ball | - | 93507-32031-00 | 1 |
| 57 | Detent ball | - | 93507-32031-00 | 1 |
| 58 | Shift slide | - | 6E5-45634-01-00 | 1 |
| 59 | Detent ball | - | 93503-16010-00 | 1 |
| 60 | Detent ball | - | 93503-16010-00 | 1 |
| 61 | Detent ball | - | 93511-32027-00 | 1 |
| 62 | Compression spring | - | 90501-16M37-00 | 1 |
| 63 | Detent ball | - | 93511-32027-00 | 1 |
| 64 | Clutch dog | - | 6R5-45631-01-00 | 1 |
| 65 | Clutch cross pin | - | 90250-08M07-00 | 1 |
| 66 | Cross pin retainer | - | 6E5-45631-01-00 | 1 |
| 67 | Propeller shaft | SIERRA-18-2385 | 6E5-45611-01-00 | 1 |
| 68 | Thrust washer | - | 90201-30M92-00 | 1 |
| 69 | Reverse gear | - | 6E5-45571-04-00 | 1 |
| 70 | Shim (0.10mm) | - | 6L6-45577-00-10 | AR |
| Shim (0.12mm) | - | 6L6-45577-00-12 | AR | |
| Shim (0.15mm) | - | 6L6-45577-00-15 | AR | |
| Shim (0.18mm) | - | 6L6-45577-00-18 | AR | |
| Shim (0.30mm) | - | 6L6-45577-00-30 | AR | |
| Shim (0.40mm) | - | 6L6-45577-00-40 | AR | |
| Shim (0.50mm) | - | 6L6-45577-00-50 | AR | |
| 71 | Thrust washer | - | 6E5-45576-00-00 | 1 |
| 72 | Reverse gear bearing | - | 93306-208U0-00 | 1 |
| 73 | Bearing housing o-ring | - | 93210-86M39-00 | 1 |
| 74 | Bearing housing | - | 6E5-45332-00-94 | 1 |
| 75 | Bearing housing key | - | 90282-04010-00 | 1 |
| 76 | Needle bearing | - | 93315-430U8-00 | 1 |
| 77 | Prop shaft seal | SIERRA-18-0266 | 93101-30M17-00 | 2 |
| 78 | Tab washer | - | 688-45383-02-00 | 1 |
| 79 | Cover nut | - | 688-45384-00-00 | 1 |
| 80 | Thrust washer | - | 6E5-45987-01-00 | 1 |
| 81 | Prop spacer | SIERRA-18-4274 | 688-45997-01-00 | 1 |
| 82 | Prop washer | - | 92990-18200-00 | 1 |
| 83 | Prop nut | SIERRA-18-3726 | 90171-18M04-00 | 1 |
| 84 | Cotter pin | SIERRA-18-3735 | 91490-40030-00 | 1 |
| 85 | Gear housing seal kit | SIERRA-18-2796 | 6E5-W0001-51-00 | 1 |
| 86 | Water pump repair kit | SIERRA-18-3372 | 6E5-W0078-00-00 | 1 |
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