Quicksilver 8M0162139 Replacement 140 Degree F Thermostat for Select Mercury Outboards

Thermostat 8M0162139 is for 175-300hp and 450R 3.4L V6 and 4.6L V8 4-stroke outboards (serial No. 2B529482 & above). It is a 140°F thermostat. Thermostat only. Additional seals or gaskets may be required. See your owner's manual or service manual for more information.