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Description
Sierra 18-3557 Thermostat
Sierra replacement 143° thermostat for Chrysler/Force/US Marine, Johnson/Evinrude Outboards, Mercrusier Stern Drives, and Volvo Penta engines.
- Fits MCM GM in-line 6 cylinder
Use with:
- 18-3669 Thermostat Kit
- 18-3669D Thermostat Kit
- 18-3626 Thermostat Kit
Interchangeable with:
- Chrysler/Force/US Marine
- F335068
- GLM
- 13080
- Johnson/Evinrude Outboard
- 382385
- 396987
- Mallory
- 9-43024
- Mercruiser Stern Drive
- 47594
- Volvo Penta
- 21148403
California Residents: 
WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
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