Sierra 18-3550 Mercruiser 140 Degree Thermostat
Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives and Chrysler/Force/US Marine engines.
- 140 Degree Temperature Rating
- Fits Mercruiser 120/2.5L (s/n 2324347 & up) w/ cast iron exhaust manifolds.
- Fits Mercruiser 140-3.0L (s/n 0L340999 & below) and 165.
- Chrysler/Force/US Marine
- Mercruiser Stern Drive
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