Powerhead Group Parts for 1966 Johnson 3 hp JW-21 Outboard Motor
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #0 — 277174 — (1 required per assembly) | ||
  |
|
0277174 - Reed Plate AS [ More info ]
|
| #0 — 381029 — (1 required per assembly) | ||
  |
|
0381029 - Engine Gasket Set [ More info ]
|
| #1 — 378101 — (2 required per assembly) | ||
  |
0378101 - Spark Plug J4C [ More info ] Unavailable |
|
  |
|
0502193 - Spark Plug J4C [ More info ] Unavailable |
  |
|
J4C - Champion Spark Plug ( #825) [ More info ]
|
|
|
J4C - Champion Spark Plug ( #825) [ More info ]
|
| #1 — 378368 — (2 required per assembly) | ||
  |
|
0378368 [ More info ] Unavailable Replaced by 0378101 |
|
0378101 - Spark Plug J4C [ More info ] Unavailable |
|
|
|
0502193 - Spark Plug J4C [ More info ] Unavailable |
|
|
J4C - Champion Spark Plug ( #825) [ More info ]
|
|
|
J4C - Champion Spark Plug ( #825) [ More info ]
|
| #1 — 378320 — (2 required per assembly) | ||
  |
|
0378320 - Spark Plug [ More info ] Unavailable |
| #2 — 306418 — (6 required per assembly) | ||
  |
|
|
| #3 — 306482 — (5 required per assembly) | ||
  |
|
0306482 - Washer [ More info ]
|
  |
|
0329241 - Washer [ More info ]
|
 |
|
3852193 - Washer, Volvo [ More info ]
|
| #4 — 300454 — (1 required per assembly) | ||
  |
|
0300454 - Ignition Lead Grommet [ More info ]
|
| #5 — 300455 — (1 required per assembly) | ||
|
|
0300455 - Ignition Lead Anchor [ More info ]
|
| #6 — 203176 — (1 required per assembly) | ||
  |
|
|
| #7 — 203130 — (1 required per assembly) | ||
  |
|
0203130 - Head Gasket [ More info ]
|
  |
|
18-3841-2 - Head Gasket 203130 [ More info ]
|
| #8 — 304442 — (3 required per assembly) | ||
  |
|
0304442 - Screw, Support [ More info ]
|
  |
|
0326875 - Screw, Support [ More info ]
|
  |
|
0332070 - Screw, Support Plate To Crankcase [ More info ]
|
| #9 — 302599 — (1 required per assembly) | ||
  |
|
0302599 - Support [ More info ]
|
| #10 — 552029 — (1 required per assembly) | ||
  |
|
0552029 - Wave Washer [ More info ]
|
| #11 — 302442 — (1 required per assembly) | ||
  |
|
0302442 - Retaining Ring [ More info ]
|
| #12 — 510167 — (1 required per assembly) | ||
  |
|
0510167 - Cam, Magneto [ More info ]
|
| #13 — 381019 — (1 required per assembly) | ||
|
|
0381019 [ More info ] Unavailable Replaced by 0381821 |
  |
|
0381821 - Cylinder & Crankcase [ More info ] Unavailable |
| #14 — 300399 — (2 required per assembly) | ||
|
|
0300399 - Washer [ More info ]
|
| #15 — 306455 — (2 required per assembly) | ||
|
|
0306455 - Screw - Idle Adj [ More info ] Unavailable |
| #16 — 306408 — (4 required per assembly) | ||
  |
|
0306408 - Screw [ More info ] Unavailable |
| #17 — 306440 — (2 required per assembly) | ||
  |
|
|
| #18 — 300399 — (2 required per assembly) | ||
|
|
0300399 - Washer [ More info ]
|
| #19 — 300402 — (2 required per assembly) | ||
  |
|
|
| #20 — 203159 — (2 required per assembly) | ||
|
|
|
| #21 — 307588 — (1 required per assembly) | ||
  |
|
0307588 - Core Plug [ More info ]
|
| #22 — 304067 — (1 required per assembly) | ||
  |
|
|
| #23 — 307272 — (1 required per assembly) | ||
  |
|
|
| #24 — 203171 — (1 required per assembly) | ||
  |
|
0203171 - Exhaust Cover Gasket [ More info ]
|
  |
|
18-2886-9 - Gasket 203171 2-Pack [ More info ]
|
| #25 — 203172 — (1 required per assembly) | ||
  |
|
0203172 - Exhaust Cover Plate [ More info ]
|
  |
|
0323263 - Exhaust Cover Plate [ More info ]
|
| #26 — 302750 — (7 required per assembly) | ||
  |
|
0302750 - Throttle Cam Screw [ More info ]
|
  |
|
|
| #27 — 304889 — (1 required per assembly) | ||
|
0304889 - Screw, Exhaust Cover [ More info ] Unavailable |
|
  |
|
|
| #28 — 203180 — (1 required per assembly) | ||
  |
|
0203180 - Leaf Plate Gasket [ More info ]
|
| #29 — 203228 — (1 required per assembly) | ||
  |
|
0203228 - Intake Manifold Gasket [ More info ]
|
| #30 — 203144 — (1 required per assembly) | ||
  |
|
0203144 - Intake Manifold [ More info ] Unavailable |
| #31 — 303764 — (4 required per assembly) | ||
  |
|
0303764 - Screw, Leaf To Manifold [ More info ]
|
| #32 — 203173 — (2 required per assembly) | ||
  |
|
0203173 - Reed Stop [ More info ]
|
| #33 — 203175 — (2 required per assembly) | ||
  |
|
0203175 - Reed, One Only [ More info ]
|
| #34 — 203174 — (1 required per assembly) | ||
  |
|
|
| #35 — 301781 — (1 required per assembly) | ||
  |
|
0301781 - Oil Slinger [ More info ]
|
| #36 — 120395 — (1 required per assembly) | ||
  |
|
|
| #37 — 203555 — (1 required per assembly) | ||
  |
|
0203555 - CrankShaft [ More info ]
|
| #38 — 277301 — (2 required per assembly) | ||
|
|
0277301 - Connecting Rod [ More info ]
|
  |
|
0383459 - Connecting Rod [ More info ]
|
| #39 — 307578 — (2 required per assembly) | ||
  |
|
0307578 - Lock Plate [ More info ]
|
| #40 — 307582 — (2 required per assembly) | ||
  |
|
0307582 - Screw, Rod Cap [ More info ]
|
| #41 — 378412 — (2 required per assembly) | ||
  |
|
0378412 - Rings , Standard [ More info ] Unavailable |
| #42 — 378414 — (2 required per assembly) | ||
  |
|
0378414 - Rings - .020 Oversize [ More info ]
|
| #43 — 203151 — (2 required per assembly) | ||
  |
|
0203151 - Wrist Pin [ More info ] Unavailable |
| #44 — 376991 — (2 required per assembly) | ||
  |
0376991 - Piston Assembly, STD [ More info ] Unavailable |
|
  |
0396997 - Piston and Rings [ More info ] Unavailable |
|
  |
|
0432739 - Piston and Rings [ More info ] Unavailable |
| #45 — 120960 — (2 required per assembly) | ||
  |
|
0120960 - Circlip [ More info ]
|
| #46 — 277283 — (2 required per assembly) | ||
|
|
0277283 [ More info ] Unavailable Replaced by 0383240 |
  |
|
0383240 - Piston .020 [ More info ] Unavailable |
| #47 — 205574 — (1 required per assembly) | ||
|
|
0205574 - Adaptor [ More info ]
|
|
|
0382072 - Adaptor [ More info ] Unavailable |
| #48 — 312198 — (1 required per assembly) | ||
|
|
0312198 [ More info ] Unavailable Replaced by 0312946 |
  |
|
0312946 - Adaptor Gasket [ More info ]
|
| #49 — 310277 — (5 required per assembly) | ||
|
|
0310277 - Screw, Lower Motor Cover To Powerhead [ More info ] Unavailable |
| #50 — 308117 — (1 required per assembly) |