Air Heater Controller
The Air Heater Controller is an electrical component responsible for controlling the air heater system in various John Deere models. This genuine John Deere part from Koenig Equipment fits models including the 320, 332, CT322, CT332, 325, 328, 317, and 280.
Questions, answered
Will the Air Heater Controller fit my John Deere equipment?
Part #AT340945 is listed to fit John Deere 320, 332, CT322, CT332, 325, 328, 317, 280. If you do not see your model, contact Koenig Equipment with your model and serial number and we will confirm the correct part.
Is this a genuine John Deere part?
Yes. Koenig Equipment sells genuine John Deere part #AT340945, backed by John Deere's parts warranty and dealer support across Ohio and Indiana.
What does the Air Heater Controller do?
Regulates and controls the air heater on a John Deere machine.
How do I order the right part?
Have your John Deere model and serial number ready so the correct part can be confirmed. Order online for fast shipping, or contact your nearest Koenig Equipment store for help.

