The Bosch Throttle Body Kit - 472358 is a comprehensive set of products designed for use in a car's throttle body system. The kit includes three essential components that are vital to the proper functioning of the throttle body: a throttle body gasket, a throttle position sensor, and a throttle body actuator. These parts work together to regulate the flow of air into the engine, controlling the vehicle's speed and performance. The gasket creates a tight seal between the throttle body and the engine, preventing any air leaks. The throttle position sensor measures the position of the throttle plate and sends this information to the vehicle's computer, which then adjusts the fuel and air mixture accordingly. The throttle body actuator is responsible for opening and closing the throttle plate, allowing more or less air into the engine as needed. This kit is essential for maintaining the proper functioning of the throttle body and ensuring optimal performance of the vehicle.