Knorr-Bremse 1303227 Air Brake Compressor Assembly

The 1303227 is a twin-cylinder water-cooled air brake compressor designed for Scania 3 Series and 4 Series heavy-duty commercial vehicles. It features a 75.00 mm cylinder bore and 50 mm piston stroke delivering 440 cm³ swept volume. The unit integrates M26x1.5 compressed air outlet ports and M16x1.5 coolant ports for engine cooling circuit integration. Manufactured to Knorr-Bremse OE specifications, this compressor replaces Scania OEM numbers 1303227 and 571184 along with Knorr-Bremse references I97493000, I97493AT, I97493X00, I97493X50 and LP4815. It serves as the primary air supply component for the vehicle pneumatic brake system and auxiliary air consumers.