Mercury Mariner Thermostat (8M0139434)

Mercury Mariner Thermostat Fits: 9.9 EFI (1R008146+) 10, 15, 20 EFI (0R833820+) 2 cyl Temp.: 52º ºC Replaces: Mercury OEM: 8M0139434 Mercruiser: 8M0139434