Throttle Body

Throttle bodies are critical engine components responsible for regulating the amount of air entering the engine, directly impacting performance and fuel efficiency. Located between the air filter and the intake manifold in both gasoline and diesel engines of passenger cars and commercial vehicles, the throttle body uses a valve to control airflow based on driver input from the accelerator pedal. Modern throttle bodies often utilize electronic control, known as electronic throttle control (ETC), for improved precision and integration with engine management systems. Key characteristics include bore diameter, sensor types (like throttle position sensor - TPS), and whether it's a single or dual throttle body design. Examples within this category include units for MAN trucks, such as MPN 51.04101-0574 and 51.04101-0509, as well as components for BMW vehicles and Bosch-manufactured throttle bodies like MPN 0280750017. Proper throttle body function is essential for smooth idling, acceleration, and overall engine operation.