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.
Interchangeable with:
- Chrysler/Force/US Marine
- F84068-2
- F85068-2
- F84068-1
- F84068
- Mercruiser Stern Drive
- 59078B
- 59078A1
- 59078
