18-2917-9 Thermostat Gasket for OMC Sterndrive/Cobra Stern Drives, Qty. 2
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Prevent leaks by replacing the gasket with the thermostat.
To prevent a possible leak, it is a good practice to replace the gaskets at the same time the thermostat is replaced. Sierra gaskets are manufactured to stringent quality standards and are full interchangeable with the OEM products they are designed to replace. Boaters and technicians can be assured every Sierra part will fit right the first time and function to OEM standards.
Key Features
- Gaskets meet or exceed OEM specifications for the proper fit and function
- Sold in pairs (available individually Sierra p/n 18-2917)
- Compatible with MCM/MIE GM based V6 and V8 engines
How to find the thermostat gasket you need
Select your thermostat gasket by locating the OEM part number in the table below. If you don't know the OEM part number, please visit our Engine Parts Selector, where you can search by engine make, model, horsepower, serial number and year of manufacturer.
| Application | OEM Part Number |
|---|---|
| GLM | 31560 |
| GM | 3701777 |
| Johnson/Evinrude Outboard | 3701777 |
| Mallory | 9-60007, 9-60007-10 |
| MerCruiser Sterndrive | 27-53045B1, FI5000096, FI1101276, F10077105, FI1101291, 27-33179, 27-53045, 27-530451 |
| OMC Inboard | 3701777 |
| OMC Sterndrive | 312797, 3701777 |
We offer a variety of Sierra engine parts for most engine applications on the water today—including MerCruiser, OMC, Johnson/Evinrude, Volvo and more.
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