Description
Quicksilver 864493 Replacement 170 Degree F Thermostat for MerCruiser 4.3L, 4.5L, 5.0L,5.7L, 6.2L AMS and offers superior lock down strength 1810387 and offers superior lock down strength Built on an ultra strong 30mm one piece machined aluminum tube Thermostat 864493 is a 170°F component designed for modern MerCruiser MPI engines equipped with dry joint exhaust and closed cooling systems Produced to meet original equipment manufacturer specifications