Sierra 18-2876-9 Bypass Cover Gasket, Pack of 2
- Brand:
- Sierra
- Part no:
- 18-2876-9
Where to buy
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This is the Sierra 18-2876-9 bypass cover gasket, supplied as a pack of 2. It is made for Johnson/Evinrude outboards and carries the Sierra number 18-2876-9. It also comes inside the Sierra powerhead gasket sets 18-4301 and 18-4309, which is worth knowing if you already have one of those sets. The part number it replaces is 307133.
Our take
The 18-2876-9 comes as a pack of 2 and is also included in Sierra gasket sets 18-4301 and 18-4309, so if you already hold one of those sets you may not need it separately. It replaces 307133 and is made for Johnson/Evinrude outboards.