160 Degree Thermostat Kit | Sierra 18-3667
160 Degree Thermostat Kit | Sierra 18-3667
Sierra
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160 Degree Thermostat Kit | Sierra 18-3667
160 degree thermostat used on Mercruiser inline 4 cylinder fresh water cooled marine engines.
- Fits Mercruiser model 165 224CID fresh water cooled engines with serial number range B434941 to B774251
- Fits Mercruiser model 170 224CID fresh water cooled engines from 1985 to 1986 with serial number range 6916779 to B434940
- Fits Mercruiser model 180 224CID fresh water cooled engines with serial number range B436391 to B775248
- Fits Mercruiser model 470 224CID fresh water cooled engines from 1983 to 1984 with serial number range 6218037 to 6916778
- Kit includes 18-3555 160 degree thermostat and 18-2555 gasket
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
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