Sierra 18-3568 Thermostat Kit-Mercruiser Inboard

For use on V6;V8 with closed cooling.(160 degree)Replaces Mercruiser Part # 99155T1 Model Year Serial # 5.7MIE 1998-2001 OL002003 & Up MX6.2LMPI 2000-2001 OL680003 & Up 454 Horizon MIE 1998-2001 OL002200 & Up 502 Mag. MPI 1998-2001 OL017000 & Up