Sierra Mercruiser GM Engine Thermostat Kit
Fits: 1987 & newer GM engines with standard cooling requiring a 160° thermostat
Temperature rating: 160°F
Kit Contains:
| Contents | Part |
| Gasket, Thermostat Housing | 18-2917-9 |
| Gasket, Thermostat | 18-0398-9 |
| Gasket, Thermostat Cover | 18-2844-9 |
| Gasket, Thermostat Cover | 18-2552-9 |
| Gasket, Thermostat | 18-2553-9 |
| O-Ring | 18-7173-9 |
| Thermostat | 18-3649 |
Kit doesn’t include 27-806922 (now 8M0214947) sleeve
Interchangeable with the following:
GLM
13101
Mercruiser Stern Drive
807252Q5
807252T5
807252T8
![Uflex MACH Series High Efficiency Flexibility Engine Control Cable – Mercury Style – 8‘ [MC5X08] - marine control cable](https://marinestockroom.com/wp-content/uploads/woo-upload-jobs/marinestockroom.com-20261113-full-v1/product-images/27d055ec1c8fab7ffd4282e030b745f0caee506c4fc87da286d80fe7e38f4282-300x300.webp)
![UflexSingle Lever Top Mount Control w/Neutral Lock Trim Switch – Chrome [B501CHT/L] - marine engine control lever](https://marinestockroom.com/wp-content/uploads/woo-upload-jobs/marinestockroom.com-20261113-full-v1/product-images/ab39dec9224ed4f1dcf29e1d015560a049e7f5cc55fa26f946ea3bf53dd220a8-300x300.webp)
![UflexTwin Lever Top Mount Control w/Neutral Lock – No Trim Switch – Black [B502B/L] - marine engine control lever](https://marinestockroom.com/wp-content/uploads/woo-upload-jobs/marinestockroom.com-20261113-full-v1/product-images/40b128018e3441632bb8de12c900dd4033900947245b473de03b838288ab2697-300x300.webp)