1400 040 003 SCANIA Twin Cylinder, Air Compressor

This heavy-duty grade twin cylinder air compressor is engineered to provide consistent pneumatic pressure for critical heavy commercial vehicle systems. Designed with a robust water-cooling architecture, it ensures optimal thermal management during high-load operations. The assembly features a high-strength component design to maintain structural integrity under intense mechanical stress.

1400 040 003 is the OE-equivalent of the KNORR-BREMSE KZ1228 and SCANIA 1300366, 394941, or 571181 twin cylinder air compressor used in SCANIA and KNORR-BREMSE heavy vehicle systems. This unit provides precise air delivery through its specialized M12x1,5 unloader port and M18x1,5 water ports to maintain system stability.

Workshop technicians should verify all connections, specifically the M18x1,5 water inlet and outlet ports, during installation to ensure proper cooling. The integration of the ESS feature and a water-cooled valve plate provides advanced protection against overheating. Regular maintenance of the cooling circuit is essential to preserve the performance of this two-cylinder system.

Proper fitment requires checking the through-drive compatibility and ensuring the M12x1,5 air unloader port is unobstructed. This component is designed for seamless integration into existing pneumatic circuits for heavy-duty truck applications.