Receive an additional 30% off Parts Clearance with discount code: Discontinued2019 at checkout


Your Cart is Empty



Caterpillar APU Thermostat C05

Power Tech Mobile Generator Caterpillar APU Thermostat

Thermostat used on the Caterpillar C05 engine.  The C05 engine was used on the APU truck generator.  The Gasket is not included with this item.  If you need the gasket, Click Here.

 Thermostats manage the temperature of the cooling system of the engine, blocking or opening to allow the coolant to circulate the engine. Helping to ensure the engine warms up quickly on start up and then ensuring the engine temperature stays stable. Thermostats start to open at the rated temperature and should be fully open 15 to 20 degrees F above this temperature.


External diameter (in): 1.96
External diameter (mm): 50
Temperature (°C): 82
Temperature (°F): 180


Finding what engine is on your Power Tech generator.

Power Tech serial numbers are usually located on the control box or outside the enclosure.  This depends on the make and model of the generator and when it was made.  On generators pre-1999, it could be stamped on the generator end.

Breaking down the serial number.

Serial numbers usually look something like this: CES09DDD1234APU

For this part, your Power Tech serial number should start with "CES"

The Power Tech Mobile Generator Part Number:  03THMC05-180