MBE 4000 – Section 4 Cooling System Section 4 Cooling System 4.1 Cooling System 4.2 Coolant Pump 4.3 EGR Coolant Pump 4.4 Front Idler and Tensioner Support 4.5 Thermostat 4.6 EGR Thermostat Housing 4.7 Coolant Temperature Sensor Additional Information