Sierra 18-3651 Mercruiser 142 Degree Thermostat Kit
- Brand:
- Sierra
- Part no:
- 18-3651
Where to buy
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Sierra's 18-3651 is a thermostat kit for Mercruiser engines, with a temperature rating of 142 degrees. The kit includes thermostat 18-3551, thermostat gasket 18-2844 and three cover gaskets, 18-2553, 18-2554 and 18-2834, so the seals are replaced along with the thermostat.
Our take
The 142 degree rating is the figure to check against your Mercruiser's specification. The kit also includes a thermostat gasket and three cover gaskets, so the seals get renewed along with the thermostat.