

🛠️ Upgrade your engine’s heartbeat with Sierra’s precision gasket—don’t let leaks slow your ride!
The Sierra 18-3899 Water Cover Gasket is a high-quality replacement part designed for 20 to 35 HP Johnson and Evinrude outboard engines. Interchangeable with GLM 33700 and OMC 327674, it guarantees OEM-level performance and durability in a compact, lightweight form factor.



| Manufacturer | Sierra |
| Brand | Sierra |
| Model | 18-3899 |
| Product Dimensions | 1 x 1 x 1 cm; 9 g |
| Item model number | 18-3899 |
| Exterior | Brushed |
| Manufacturer Part Number | 18-3899 |
| OEM Part Number | OMC 327674 |
| Item Weight | 9 g |
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