Air Cleaner - Thermostatic: Description

Fresh air or heated air is made available to engine by ducting which directs air into air cleaner assembly. Air temperature is controlled by temperature-sensitive vacuum system that operates duct valve.

Vacuum-operated duct may select cool air from outside through pick-up tube, or warm air from exhaust manifold shroud. System consists of shroud, air cleaner assembly with vacuum motor, duct and valve assembly, temperature sensor and cold-weather modulator (if equipped).