Johnson/Evinrude Outboard Lower Gearcase Parts Diagram
The diagram below is applicable for the following models:
- V4 Crossflow - 1978 thru 1998
| Ref | Description | Sierra # | Replaces | Qty |
|---|---|---|---|---|
| 1 | Gearcase housing | - | 431642 | 1 |
| 2 | Shift rod (long) | - | 332120 | 1 |
| Shift rod (extra long) | - | 332121 | 1 | |
| 3 | Shift rod cover | - | 388618 | 1 |
| 4 | Cover screw | 18-3369 | 302325 | 6 |
| 5 | Shift rod o-ring | 18-7137 | 318372 | 1 |
| 6 | Shift housing gasket | 18-0110 | 324670 | 1 |
| 7 | Magnetic drain screw | 18-2378 | 318544 | 1 |
| 8 | Plugs o-ring | 18-7145 | 333572 | 1 |
| 9 | Screw | - | 324852 | 1 |
| 10 | O-ring | 18-7475 | 332584 | 1 |
| 11 | Gearcase to housing screw | - | 331999 | 5 |
| 12 | Water intake screen | - | 323466 | 1 |
| 13 | Anode | 18-6024 | 393023 | 1 |
| 14 | Trim tab | - | 327640 | 1 |
| 15 | Trim tab screw | - | 313715 | 1 |
| 16 | Upper oil seal | 18-2061 | 329922 | 1 |
| 17 | Lower oil seal | 18-2062 | 329923 | 1 |
| 18 | Housing to gearcase screw | - | 317624 | 4 |
| 19 | Bearing housing | - | 397493 | 1 |
| 20 | Bearing housing o-ring | 18-7130 | 314728 | 1 |
| 21 | Shim (.003) | 18-2229 | 323362 | AR |
| Shim (.004) | 18-2230 | 323361 | AR | |
| Shim (.005) | 18-2231 | 314745 | AR | |
| 22 | Pinion thrust washer | 18-0200 | 327656 | 1 |
| 23 | Pinion thrust bearing | 18-1365 | 387656 | 1 |
| 24 | Drive shaft (long) | - | 394613 | 1 |
| Drive shaft (extra-long) | - | 394614 | 1 | |
| 25 | Pinion bearing | 18-1357 | 384195 | 1 |
| 26 | Pinion nut | 18-3719 | 314730 | 1 |
| 27 | Wear plate | 18-3346 | 330380 | 1 |
| 28 | Impeller key | 18-3299 | 331107 | 1 |
| 29 | Impeller housing seal | 18-7963 | 331353 | 1 |
| 30 | Impeller | 18-3059 | 395864 | 1 |
| 31 | Impeller cup | 18-3346 | 330379 | 1 |
| 32 | Drive shaft o-ring | 18-2769 | 332000 | 1 |
| 33 | Water pump housing | 18-3130 | 395040 | 1 |
| 34 | Water tube grommet | 18-2703 | 314008 | 1 |
| 35 | Pump cover | - | 321159 | 1 |
| 36 | Impeller housing screw | - | 328715 | 4 |
| 37 | Grommet | 18-2704 | 320943 | 1 |
| 38 | Bearing housing assembly | - | 391365 | 1 |
| 39 | Detent ball | - | 327345 | 1 |
| 40 | Detent spring | - | 326666 | 1 |
| 41 | Housing pin | 18-3765 | 331880 | 1 |
| 42 | Shifter detent | - | 323946 | 1 |
| 43 | Shift lever pin | - | 320145 | 1 |
| 44 | Shift shaft | 18-3763 | 322941 | 1 |
| 45 | Shifter cradle | 18-3766 | 334163 | 1 |
| 46 | Shift lever | - | 324037 | 1 |
| 47 | Forward gear thrust washer | 18-0198 | 324766 | 1 |
| 48 | Forward gear thrust bearing | 18-1371 | 385043 | 1 |
| 49 | Forward & pinion gear set | 18-2218 | 398035 | 1 |
| 50 | Sliding clutch | 18-2220 | 323664 | 1 |
| 51 | Clutch dog spring | 18-1714 | 313448 | 1 |
| 52 | Retaining spring | 18-2399 | 324369 | 1 |
| 53 | Propeller shaft | 18-2252 | 387818 | 1 |
| 54 | Reverse gear | 18-2219 | 333077 | 1 |
| 55 | Reverse gear thrust bearing | 18-1366 | 382408 | 1 |
| 56 | Reverse gear thrust washer | 18-0195 | 314731 | 1 |
| 57 | Bearing housing retainer plate | - | 314732 | 1 |
| 58 | Retaining rings | - | 313445 | 2 |
| 59 | Bearing housing o-rings | 18-7127 | 313446 | 1 |
| 60 | Bearing carrier (fore) | 18-1351 | 382407 | 1 |
| 61 | Beairng housing | - | 397087 | 1 |
| 62 | Retainer screw | 18-2377 | 316563 | 4 |
| 63 | O-ring | 18-7475 | 332583 | 1 |
| 64 | Roller bearing (aft) | 18-1350 | 379504 | 1 |
| 65 | Prop shaft oil seals | 18-2001 | 330137 | 2 |
| 66 | Thrust washer | 18-4222 | 318841 | 1 |
| 68 | Propeller | - | Various | 1 |
| 69 | Prop nut spacer | 18-4228 | 315810 | 1 |
| 70 | Propeller nut | 18-3705 | 314503 | 1 |
| 71 | Prop nut cotter pin | 18-3742 | 314502 | 1 |
| 72 | Gear housing seal kit | 18-2623 | 396354 | 1 |
| 73 | Water pump repair kit | 18-3392 | 395062 | 1 |
| 74 | Grommet | 18-2706 | 321008 | 1 |
| 75 | Shift rod spacer | - | 321122 | 1 |
| 76 | Impeller housing plate gasket | 18-2557 | 324701 | 1 |
| 77 | Drive shaft o-ring | - | 302035 | 1 |
| 78 | Cover to impeller screw | 18-3135 | 306643 | 2 |
| 79 | Drive shaft to crankcase o-ring | 18-7158 | 310585 | 1 |
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