Mercruiser Lower Thermostat Housing | Barr MC-29-47587 Direct replacement thermostat housing fits Mercruiser 120, 140, 120R, 140R, 160, 165 & 200 model 4 & inline 6 cylinder marine engines. Barr Mercruiser thermostat housing Includes bare lower thermostat housing only For Mercruiser 120, 140, 120R, 140R, 160, 165 & 200 models Proudly made in the USA Replaces Barr MC29-47587 Replaces Mercury 861493A07, 861493A3, 47587A2, 47587, 60372A2, 60372A1, 47588 & 63908A2 Replaces Sierra 18-1968