Steering columns are a critical component of a vehicle's steering system, transmitting rotational motion from the steering wheel to the steering gear or rack. Located within the passenger compartment and extending through the vehicle's firewall, the steering column assembly incorporates the steering shaft, universal joints, and often, electrical connections for features like tilt/telescope adjustment and integrated controls. These columns are found in passenger cars and commercial vehicles like trucks and buses, and are designed for precise control and driver safety. Examples in this category include steering columns for MAN trucks (MPN 81.46113-6236), Scania vehicles (MPN 2124563 & 2908123), Volvo Trucks, and Mercedes-Benz Trucks. Proper functioning is essential for vehicle maneuverability and driver control.