


⚙️ Seal your engine’s success with precision and pride!
The Sierra International 18-3899 Water Cover Gasket is a precision-engineered, USA-made replacement part designed to meet or exceed OEM standards. Compatible with multiple leading brands, it offers a perfect fit with no assembly needed, ensuring reliable, leak-free performance for watercraft engines. Lightweight and highly rated by professionals, it’s the go-to gasket for seamless engine maintenance.



| ASIN | B001IV030M |
| Assembly Required | No |
| Brand | Sierra |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (110) |
| Date First Available | 14 September 2012 |
| Item Dimensions LxWxH | 10 x 10 x 10 Millimeters |
| Item Weight | 9 g |
| Item model number | 18-3899 |
| Manufacturer | Sierra International |
| Manufacturer Part Number | 183899 |
| Net Quantity | 1.0 Count |
| OEM Part Number | OMC 327674 |
| Product Dimensions | 1 x 1 x 1 cm; 9 g |
F**E
Super utilisation personnel
P**T
Gasket lined up and fit perfectly on 1979 Johnson 35hp. No leaks. I’m very happy and shipping was on time as projected. Thank you.
L**T
Parfait ! Livraison dans les temps, colis bien protégé et joint identique à l'original ! Parfait !
A**E
The right gasket for my motor and it shipped quick.
J**3
No leaks even with two snapped off bolts. Be careful when removing the bolts, i was working on an engine that sat for 20 years, sprayed the bolts with blaster for 2 days and still rung off two bolts.
Trustpilot
2 months ago
2 months ago