Viscous
Fan Drives:
Overview
Air-sensing viscous fan drives from BorgWarner Thermal Systems are ideal for a wide range of applications where quiet operations, excellent cooling performance, and cost efficiency are important.
Our air-sensing viscous fan drives utilize a bimetallic sensor that reacts to heat exchanger air temperature to control fan speed. This smooth transitional speed control can extend belt and accessory life, eliminate air conditioning head pressure spikes, reduce cyclic fan noise, and improve operator comfort—all while boosting engine performance and improving fuel economy.
