20547525 VOLVO FH II 420 Twin Cylinder, Air Compressor

The high-strength component serves as a critical element within the air brake system of heavy commercial vehicles. This twin cylinder air compressor is designed to provide consistent air pressure, ensuring the reliable operation of pneumatic braking systems. Built with heavy-duty grade materials, it maintains optimal performance under demanding thermal and mechanical conditions.

20547525 is the OE-equivalent of the VOLVO 20547525 air compressor used in the VOLVO FH II 420. This unit features a Ø85.00 cylinder bore and a 62 mm stroke, delivering a swept volume of 704cm³. The integration of a water-cooled valve plate and an ESS feature ensures advanced thermal management during high-load operations.

For workshop technicians, this assembly offers precise fitment with a through-drive design and specific port dimensions (Air Inlet Ø35, Air Outlet M26x1,5) for seamless installation. Maintenance should focus on checking the water-cooled ports (M16x1,5) and ensuring the unloader port (M12x1) remains free from debris to prevent system pressure fluctuations.

This component is engineered specifically for the heavy commercial vehicle sector, maintaining structural integrity within the engine and braking architecture. Regular inspections of the cooling-water connections are recommended to maintain long-term operational efficiency in fleet service.