450C - BULLDOZER 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] FAN SHROUD [01C21] RADIATOR BAFFLE [01C21] WATER PUMP ASSEMBLY [01C22] REPLACEMENT WATER PUMP [01C23] ENGINE OIL COOLER [01C24] ENGINE COOLANT HEATER [01C25]