Thermostat for Mercury Mariner Outboard 30 40 50 60 hp 4 stroke 3&4 cyl EFI carb
THERMOSTAT, THERMOSTAT SEAL, THERMOSTAT GASKET. EFI & carburettor MODELS. THERMOSTAT KIT. This is a 120F (50C) thermostat and it is lower temperature than the standard 143F(60c). 30 40 50 60 HP. OEM part number used for reference only.