20478151 VOLVO Twin Cylinder, Air Compressor

This heavy-duty grade air compressor is engineered to provide reliable air pressure for heavy commercial vehicle braking and pneumatic systems. The component functions as a critical part of the engine's auxiliary systems, ensuring consistent pneumatic output through its dual-cylinder architecture. Designed for durability, it features a water-cooled valve plate to maintain optimal operating temperatures during intensive duty cycles.

20478151 is the OE-equivalent of the VOLVO 20478151 Twin Cylinder, Air Compressor used in VOLVO heavy-duty vehicles. This precision-engineered part ensures seamless integration with existing pneumatic circuits, maintaining high-strength performance under demanding workshop service conditions. It is specifically designed to meet the rigorous requirements of the Volvo engine system.

For workshop technicians, this unit offers straightforward installation with standardized port sizes including a Ø35 Air Inlet Port and M26x1,5 Air Outlet Port. The inclusion of the ESS feature and water-cooled specifications ensures long-term stability in thermal management. Regular inspection of the water inlet and outlet ports (M16x1,5) is recommended during routine maintenance to prevent any system pressure drops or overheating.

This component is essential for maintaining the integrity of the air brake compressor system in heavy trucks and buses. By utilizing high-strength components and precise manufacturing standards, it helps prevent common symptoms of air system failure such as pressure leakage or irregular cycling.