450C - LOADER, CRAWLER 25 COOLING SYSTEM Parts group 25 COOLING SYSTEM 25 COOLING SYSTEM . RADIATOR [01C18] RADIATOR SAND SHIELD (WHEN EQUIPPED WITH BLOWER FAN) [01C19] THERMOSTAT HOUSING ASSEMBLY [01C20] WATER PUMP ASSEMBLY [01C21] REPLACEMENT WATER PUMP KIT [01C22] ENGINE OIL COOLER [01C23] ENGINE COOLANT HEATER [01C24]