The TRW Power Steering Pump Kit - 472558 is a comprehensive set of products designed for use in a car's power steering system. The kit includes three main components: a power steering pump, a pulley, and a reservoir. These parts work together to provide the necessary hydraulic pressure to assist with steering the vehicle.

The power steering pump is responsible for generating the hydraulic pressure needed to operate the power steering system. It is a vital component that helps to reduce the effort required to turn the steering wheel, making driving more comfortable and effortless.

The pulley is a small wheel that is attached to the power steering pump and helps to transfer power from the engine to the pump. It is an essential part of the system as it allows the pump to operate smoothly and efficiently.

The reservoir is a container that holds the power steering fluid, which is essential for the proper functioning of the power steering system. The fluid is pressurized by the pump and then distributed to the steering gear, providing the necessary assistance for steering.

Overall, the TRW Power Steering Pump Kit - 472558 is a complete package that includes all the necessary components for a car's power steering system. It is designed to provide reliable and efficient performance, ensuring smooth and effortless steering for the driver.