160 Degree Thermostat Kit | Sierra 18-3568
160 Degree Thermostat Kit | Sierra 18-3568
Sierra
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160 Degree Thermostat Kit | Sierra 18-3568
Aftermarket thermostat kit used on late model Mercruiser V8 fresh water cooled marine engines.
- Fits Mercruiser 5.7 MIE closed cooled marine engines from 1998 to 2001 with serial number range 0L002003 and up
- Fits Mercruiser MX6.2L MPI closed cooled engines from 2000 to 2001 with serial number range 0L680003 and up
- Fits Mercruiser 454 Horizon MIE closed cooled engines from 1998 to 2001 with serial number range 0L002200 and up
- Fits Mercruiser 502 MAG MPI closed cooled engines from 1998 to 2001 with serial number range 0L017000 and up
- Kit includes 160 degree thermostat and seal
- Replaces Mercury 99155T1

! 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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