Parts Diagram | ## | Part # | Description | Qty | Notes |
![Mercury Force 120 H.P. 1990 L-Drive Crankshaft and Piston parts diagram](/parts/outboard.motors/mercury/images/sm.mercury-force-120-h-p-1990-l-drive-parts-2.crankshaft-and-piston-70.jpg) | 1 | 19-F2067 | Cap | 1 | discontinued |
2 | 11-F1968 | Nut, 3/4 - 16 | 1 | |
3 | 26-828627 | Seal, crankshaft | 2 | replaces F523146-1 |
4 | 10-92160 | Screw, 1/4 - 20 x 3/4 | 5 | replaces F2081 |
5 | 1100-818070A1 | Cage, bearing w/seal | 1 | discontinued |
6 | 39-820457A2 | Ring, piston - standard | 4 | discontinued, replaces FA528260 |
| FSA528260 | Ring, piston - .010 oversize | 4 | limited availability |
| 39-818129A2 | Ring, piston - .030 oversize | 4 | discontinued |
7 | 41-F694017-1 | Pin, piston | 4 | discontinued, replaces F694017 |
8 | 700-834800A4 | Piston - standard | 4 | discontinued, replaces F722015 |
| 700-834800A5 | Piston - .010 oversize | 4 | discontinued, replaces FSA722015 |
| 700-834800A6 | Piston - .030 oversize | 4 | discontinued, replaces 700-819005A7 |
9 | 23-F366215 | Spacer, piston pin | 8 | |
10 | 31-F335217-1 | Bearing, piston pin 26 per set | 4 | |
11 | 600-818052T6 | Rod, connecting w/cap and screw | 4 | replaces 600-818052A4 |
12 | 10-91012 | Screw, connecting rod | 8 | replaces F85634-2 |
13 | 31-62596A2 | Bearing cage w/rollers | 4 | replaces FK85228-1 |
14 | 28-F85498-1 | Key, flywheel | 1 | |
15 | 30-803893T | Bearing, upper crankshaft main | 1 | replaces F284659-2 |
16 | 400-819448A9 | Crankshaft w/upper main bearing | 1 | discontinued, replaces FA698018 |
17 | 53-F85410 | Snap ring | 3 | discontinued |
18 | 31-803604T | Race, crankshaft main bearing w/snap ring | 3 | replaces FA85655-1 |
19 | F316579 | Seal, crankcase | 3 | |
20 | 31-819193 | Bearing | 3 | replaces F85571 |
21 | 31-818050T3 | Bearing, crankshaft lower w/seal | 1 | replaces 31-818050A2 |
22 | 17-823605 | Pin, bearing locating pressed into block | 4 | replaces F85909-1 |
23 | 40-F694096 | Retainer | 8 | discontinued |