The INA Deflection Pulley - 5320144100 is a high-quality pulley designed for use in automotive engines. It is used to guide and tension the serpentine belt, which drives various engine components such as the alternator, power steering pump, and air conditioning compressor. This pulley is made of durable materials and features a smooth surface to reduce friction and wear on the belt. It is precision-engineered to ensure proper fit and function, and is compatible with a wide range of vehicle makes and models. The INA Deflection Pulley - 5320144100 is a reliable and efficient solution for maintaining the proper tension and alignment of the serpentine belt in your vehicle's engine.