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.
Our selection includes replacement parts for most engine applications on the water today—including MerCruiser, OMC, Johnson/Evinrude, Volvo and more.
How to find the engine part you need
Some of the gaskets we offer have more than one application. Notice in the parts number interchange below that in addition to Johnson/Evinrude outboard applications, there are multiple applications for some gaskets.
| Sierra Part # | Interchange | Qty. | Model |
|---|---|---|---|
| 18-0397 | GLM 34890 | 1 | 10512515 |
| 18-0397 | Johnson/Evinrude Outboard 318917 | 1 | 10512515 |
| 18-0675 | GLM 34440 | 1 | 10512572Â |
| 18-0675 | Johnson/Evinrude Outboard 321932 | 1 | 10512572Â |
| 18-0679 | GLM 34000 | 1 | 10512580 |
| 18-0679 | Johnson/Evinrude Outboard 311145 | 1 | 10512580 |
| 18-0412-9 | Johnson/Evinrude Outboard 337068 | 2 | 10512663 |
| 18-0441-9 | GLM 35410 | 2 | 10512671 |
| 18-0441-9 | Johnson/Evinrude Outboard 329076 | 2 | 10512671 |
| 18-0929-9 | GLM 34260 | 2 | 10512713 |
| 18-0929-9 | Johnson/Evinrude Outboard 313416 | 2 | 10512713 |
| 18-0929-9 | OMC Sterndrive 313416, 3852120 | 2 | 10512713 |
| 18-0929-9 | Volvo Penta 3852120 | 2 | 10512713 |
| 18-0977-9 | GLM 33650 | 2 | 6367783 |
| 18-0977-9 | Johnson/Evinrude Outboard 321897, 332369 | 2 | 6367783 |
| 18-0977-9 | Mallory 9-60448 | 2 | 6367783 |
| 18-2546-9 | GLM 33600 | 2 | 6367833 |
| 18-2546-9 | Johnson/Evinrude Outboard 321184 | 2 | 6367833 |
| 18-2546-9 | Mallory 9-60449 | 2 | 6367833 |
| 18-2548-9 | GLM 34630 | 2 | 10512838 |
| 18-2548-9 | Johnson/Evinrude Outboard 332108, 317226 | 2 | 10512838 |
The Sierra Engine Parts Selector
If you do not see the gasket (or other engine part) you need, please visit the Sierra Engine Parts Selector, where you can search by engine make, model, serial number or year of manufacture.











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