Parts Diagram | ## | Part # | Description | Qty | Notes |
![1997 9.90 - E10RLEUS Crankshaft & Piston parts diagram](http://www.selffixer.com/parts/outboard.motors/evinrude/images/sm.1997-9-90-e10eeus-parts-catalog.crankshaft-piston-2.jpg) | 1 | 0436901 | Piston & ring, standard. includes piston rings | 2 | |
1 | 0436903 | Piston & ring, 0.020 in. o. s. includes piston rings | 2 | |
2 | 0435218 | Ring set, standard | 2 | |
2 | 0436360 | Ring set, 0.020 in. o. s | 2 | |
3 | 0325262 | Retaining ring | 4 | |
4 | 0325296 | Wrist pin | 2 | |
5 | 0393283 | Bearing, wrist pin | 2 | |
6 | 0396607 | Connecting rod assembly | 2 | |
7 | 0304610 | Screw, rod cap | 2 | |
8 | 0385173 | Bearing assembly, crank shaft, lower | 1 | |
9 | 0395401 | Bearing set | 2 | |
10 | 0124341 | Screw, crankcase head | 3 | |
11 | 0394327 | Crankcase head & seal assembly | 1 | |
12 | 0321831 | Seal, upper | 1 | |
13 | 0321788 | Seal, lower | 1 | |
14 | 0318641 | Retaining ring, ball bearing | 1 | |
15 | 0321830 | Seal, crank shaft | 1 | |
16 | 0435707 | Crank shaft assembly | 1 | |
17 | 0307480 | Key, crank shaft | 1 | |
18 | 0308458 | O-ring, crankcase head | 1 | |
19 | 0318863 | Split sleeve, center bearing | 1 | |
20 | 0386008 | Bearing assembly, crank shaft | 1 | |
21 | 0305981 | Washer, screw, crankcase head | 3 | |
22 | 0393804 | Bearing assembly, center | 1 | |
23 | 0328792 | Washer, wrist pin | 4 | |