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Description
Sierra 18-3650 Mercruiser 140 Degree Thermostat Kit
For Mercruiser Sterndrive engines using 140 degree thermostat. Fits 1998 & older MCM GM In-Line 4 & 6 cylinder engines.
Kit Includes:
- (1) 18-2831 Thermostat Gasket
- (1) 18-3550 Thermostat
Interchangeable with:
- GLM
- 13370
- Mallory
- 9-43153
- Mercruiser Stern Drive
- 59078T3
For Use On Engine Models:
- 120/2.5L 2324347 - UP
- 140 (6 CYL) 1538930 - 1725960
- 140 (4 CYL)/3.0L 2508261 - UP
- 3.0L/3.0LX C856559 - UP
- 150 1666495 - 2048046
- 160 2048022 - 2770031
- 160 2048022 - 2233574
- 160 2326069 - 2770031
- 165 2770032 - 5813433
Supersedes 18-3650D
California Residents: 
WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
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