2005300000020
Head Unit Assembly
SAF-Holland

The 2005300000020 Head Unit Assembly serves as a central junction in certain heavy-duty braking or hydraulic systems, coordinating input from hoses, valves, and actuators to deliver controlled operation. This unit is engineered for clean fluid paths, precise port alignment, and secure mounting to the vehicle frame or chassis. In practice, it functions as the primary interface where operator commands are translated into mechanical action, influencing brake application, air suspension control, or other critical subsystems. Robust seals and high-quality materials resist wear and leaks, preserving system integrity under constant vibration and thermal cycling. Proper installation requires careful routing of lines, correct port orientation, and verification of leak-free connections after assembly. Routine inspection for seal wear and mounting integrity will help maintain reliable performance over the vehicle’s service life. Source One Parts Center.