Yamaha Outboard Lower Gearcase Parts Diagram
The diagram below is applicable for the following models:
- V6 (1984-1991)
| Ref | Description | Part # | Replaces | Qty |
|---|---|---|---|---|
| 1 | Gearcase housing | - | 6J9-45301-02-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 | - | 93210-58677-00 | 1 |
| 6 | Shift rod assembly | - | 6G5-44150-01-00 | 1 |
| 7 | Circlip | - | 99001-08600-00 | 1 |
| 8 | Needle bearing | - | 90250-08M07-00 | 1 |
| 9 | Drive shaft sleeve | - | 6G5-45536-01-00 | 1 |
| 10 | Washer | - | 90209-33M13-00 | 1 |
| 11 | Compression spring | - | 90501-05M64-00 | AR |
| 12 | Collar | - | 90387-33M00-00 | 1 |
| 13 | Washer | - | 90209-33M13-00 | 1 |
| 14 | Washer | - | 90209-33M12-00 | 1 |
| 15 | Drive shaft (long) | - | 6G5-45501-01-00 | 1 |
| Drive shaft (extra-long) | - | 6G5-45501-21-00 | 1 | |
| 16 | Impeller key | - | 90280-04M05-00 | 1 |
| 17 | Housing o-ring | - | 93210-54534-00 | 1 |
| 18 | Tapered bearing | - | 93341-930U0-00 | 1 |
| 19 | 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 | |
| 20 | Needle bearing | - | 93315-430V5-00 | 1 |
| 21 | Bearing housing | - | 6E5-45331-00-94 | 1 |
| 22 | Bearing housing bolt | - | 97395-08025-00 | 4 |
| 23 | Washer | - | 92990-08600-00 | 4 |
| 24 | Drive shaft seal | SIERRA-18-0265 | 93101-28M16-00 | 2 |
| 25 | Oil seal cover | - | 6E5-44344-00-00 | 1 |
| 26 | Wear plate gasket | SIERRA-18-0244 | 6E5-44315-A0-00 | 1 |
| 27 | Wear plate | SIERRA-18-3345 | 6G5-44323-00-00 | 1 |
| 28 | Impeller | SIERRA-18-3071 | 6E5-44352-00-00 | 1 |
| 29 | Water pump insert | - | 6E5-44322-00-00 | 1 |
| 30 | Water pump o-ring | SIERRA-18-7485 | 93210-86M38-00 | 1 |
| 31 | Water pump o-ring | SIERRA-18-7483 | 93210-37M67-00 | 1 |
| 32 | Water pump housing pin | - | 93606-12019-00 | 2 |
| 33 | Water pump housing | SIERRA-18-3170 | 6E5-44311-00-00 | 1 |
| 34 | Water seal damper | - | 6E5-44365-00-00 | 1 |
| 35 | Pump housing cover | - | 6E5-44312-00-00 | 1 |
| 36 | Water pump bolt | - | 97080-08045-00 | 4 |
| 37 | Washer | - | 90209-08M02-00 | 4 |
| 38 | Hose nipple | - | 6E5-45378-00-00 | 1 |
| 39 | Lower drain plug | SIERRA-18-2374 | 688-45341-00-00 | 1 |
| 40 | Drain plug gasket | - | 90430-08020-00 | 2 |
| 41 | Upper drain plug | - | 90340-08M04-00 | 1 |
| 42 | Drain plug gasket | - | 90430-08020-00 | 2 |
| 43 | Locating pin | - | 93608-12M05-00 | 2 |
| 44 | Water inlet cover (port) | - | 6J9-45214-00-00 | 1 |
| 45 | Water inlet cover (starboard) | - | 6J9-45215-00-00 | 1 |
| 46 | Water inlet screw | - | 90142-05M04-00 | 1 |
| 47 | Water inlet nut | - | 90185-05002-00 | 1 |
| 48 | Bolt | - | 97395-10070-00 | 1 |
| 49 | Bolt | - | 97395-10070-00 | 1 |
| 50 | Washer | - | 92990-10100-00 | 1 |
| 51 | Washer | - | 92990-10100-00 | 1 |
| 52 | Trim tab | SIERRA-18-6035 | 6J9-45371-01-00 | 1 |
| 53 | Trim tab bolt | - | 90105-10M00-00 | 1 |
| 54 | Pinion gear | - | 6G5-75551-01-00 | 1 |
| 55 | Pinion nut | - | 90170-16M01 | 1 |
| 56 | Shim (0.10mm) | - | 6G5-45567-01-10 | AR |
| Shim (0.12mm) | - | 6G5-45567-01-12 | AR | |
| Shim (0.15mm) | - | 6G5-45567-01-15 | AR | |
| Shim (0.18mm) | - | 6G5-45567-01-18 | AR | |
| Shim (0.30mm) | - | 6G5-45567-01-30 | AR | |
| Shim (0.40mm) | - | 6G5-45567-01-40 | AR | |
| Shim (0.50mm) | - | 6G5-45567-01-50 | AR | |
| 57 | Forward gear bearing | - | 93332-00V3-00 | 1 |
| 58 | Needle bearing | - | 93315-425V3-00 | 2 |
| 59 | Forward gear | - | 6G5-45631-00-00 | 1 |
| 60 | Shifter | - | 6E5-45641-01-00 | 1 |
| 61 | Detent ball | - | 93507-32031-00 | 1 |
| 62 | Detent ball | - | 93507-32031-00 | 1 |
| 63 | Shift slide | - | 6E5-45634-01-00 | 1 |
| 64 | Detent ball | - | 93503-16010-00 | 1 |
| 65 | Detent ball | - | 93503-16010-00 | 1 |
| 66 | Detent ball | - | 93511-32027-00 | 1 |
| 67 | Compression spring | - | 90501-16M37-00 | 1 |
| 68 | Detent ball | - | 93511-32027-00 | 1 |
| 69 | Clutch dog | - | 6E5-45633-01-00 | 1 |
| 70 | Clutch cross pin | - | 90250-08M07-00 | 1 |
| 71 | Cross pin retainer | - | 6E5-45633-01-00 | 1 |
| 72 | Propeller shaft | - | 6J9-45611-01-00 | 1 |
| 73 | Thrust washer | - | 90201-30M92-00 | 1 |
| 74 | Reverse gear | - | 6G5-45571-02-00 | 1 |
| 75 | Shim (0.10mm) | - | 6G5-45577-02-10 | AR |
| Shim (0.12mm) | - | 6G5-45577-02-12 | AR | |
| Shim (0.15mm) | - | 6G5-45577-02-15 | AR | |
| Shim (0.18mm) | - | 6G5-45577-02-18 | AR | |
| Shim (0.30mm) | - | 6G5-45577-02-30 | AR | |
| Shim (0.40mm) | - | 6G5-45577-02-40 | AR | |
| Shim (0.50mm) | - | 6G5-45577-02-50 | AR | |
| 76 | Thrust washer | - | 6G5-45576-00-00 | 1 |
| 77 | Reverse gear bearing | - | 93306-209U0-00 | 1 |
| 78 | Bearing housing o-ring | SIERRA-18-0275 | 93210-97M55-00 | 1 |
| 79 | Bearing housing assembly | - | 6J9-45332-00-94 | 1 |
| 80 | Bearing housing key | - | 90282-04010-00 | 1 |
| 81 | Needle bearing | - | 93315-430U8-00 | 1 |
| 82 | Prop shaft seal | SIERRA-18-0266 | 93101-30M17-00 | 2 |
| 83 | Tab washer | - | 6G5-45383-01-00 | 1 |
| 84 | Cover nut | - | 6G5-45384-00-00 | 1 |
| 85 | Thrust washer | - | 6E5-45987-00-00 | 1 |
| 86 | Prop spacer | SIERRA-18-4274 | 688-45997-01-00 | 1 |
| 87 | Prop washer | - | 92990-18200-00 | 1 |
| 88 | Prop nut | SIERRA-18-3726 | 90171-18M04-00 | 1 |
| 89 | Cotter pin | SIERRA-18-3735 | 91490-40030-00 | 1 |
| 90 | Gear housing seal kit | SIERRA-18-2794-1 | 6G5-W0001-21-00 | 1 |
| 91 | Water pump repair kit | SIERRA-18-3311 | 6G5-W0078-00-00 | 1 |
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