Replacement O-Rings for Johnson/Evinrude, OMC/Cobra Sterndrives
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Sierra Marine engine parts are designed to meet or exceed the OEM part they are intended to replace and they are backed by the SeaStar Solutions Two-Year Warranty—one of the best in the business.
Many of the O-rings we offer fit multiple applications. Notice in the list below that in addition to Johnson/Evinrude and OMC applications, there are a variety of other engine applications for the O-rings offered here. O-rings can also be selected by inside diameter and width, which also appear in the table.
| Sierra # | Application | Replaces OEM Part # | I.D. | Width | Qty. | Model |
|---|---|---|---|---|---|---|
| 18-7407-9 | GLM | 82430 | 4.125" | 0.135" | 5 | 10519536 |
| 18-7407-9 | Johnson/Evinrude Outboard | 911700 | 4.125" | 0.135" | 5 | 10519536 |
| 18-7407-9 | OMC Stern Drive | 3852531 | 4.125" | 0.135" | 5 | 10519536 |
| 18-7407-9 | Volvo Penta | 3852531 | 4.125" | 0.135" | 5 | 10519536 |
| 18-7408-9 | GLM | 81210 | 1.060" | 0.100" | 5 | 10519544 |
| 18-7408-9 | Johnson/Evinrude Outboard | 911718 | 1.060" | 0.100" | 5 | 10519544 |
| 18-7408-9 | OMC Stern Drive | 911718 | 1.060" | 0.100" | 5 | 10519544 |
| 18-7510-9 | Johnson/Evinrude Outboard | 321163 | 2.750" | 0.070" | 5 | 10519692 |
| 18-7510-9 | OMC Stern Drive | 321163 | 2.750" | 0.070" | 5 | 10519692 |
| 18-7144-9 | GLM | 82440 | 4.250" | 0.135" | 5 | 10519114 |
| 18-7144-9 | Johnson/Evinrude Outboard | 326849 | 4.250" | 0.135" | 5 | 10519114 |
| 18-7144-9 | OMC Stern Drive | 326849 | 4.250" | 0.135" | 5 | 10519114 |
