Sierra 18-3648 Mercruiser 160 Degree Thermostat Kit
- Brand:
- Sierra
- Part no:
- 18-3648
Where to buy
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The Sierra 18-3648 is a thermostat kit for Mercruiser engines with a temperature rating of 160°. It contains an 18-3649 thermostat, an 18-2553 thermostat cover gasket and an 18-2917 thermostat gasket. It is listed as interchangeable with Mallory 9-43100.
Our take
The 18-3648 bundles an 18-3649 thermostat with an 18-2553 cover gasket and an 18-2917 gasket, so the seals come in the same kit as the 160° part. That saves matching them separately.