What is a heater treater for car?

Answer by  jmowreader (61)

The heater in your car is controlled by a blend door. These pivot on plastic pins, which break. When the pins break, you can't control the heat in your car anymore -- you will either roast in the summer or freeze in winter. Or both. A Heater Treater kit replaces the plastic pins with unbreakable stainless steel ones.

Answer by  JOHNEBEG (486)

These are the heat bending doors that regulate the heat inside the car. There are kits and replacement hardware for the ones that fail.

Answer by  69nova (389)

The heater treater is a repair for manufacturing flaws in the temperature/vent doors on many different vehicles. So depending on your vehicle it may work on yours.

Answer by  RINI (4)

It help in normalizing the heating power in the vehicle. As now a days heat rejection rates in car has been increased so heater treater helps in controlling the heat.