26 13 30 Cylinder Head for Detroit Diesel DD15 Engines

What does a compressor cylinder head do?

This compressor cylinder head serves as the critical component that seals the top of the air brake compressor's cylinder block while housing the intake and discharge valve seats. It is engineered to maintain high-pressure air containment and facilitate efficient heat dissipation during the compression cycle. By using this component, technicians can rebuild existing compressors to restore original performance levels.

Compatible vehicles and engines

This specific cylinder head is designed for use with Detroit Diesel DD15 engines. It is fitted to various heavy commercial vehicle models, including Freightliner Coronado, Cascadia, 122SD, 114SD, Century Class, and Columbia models, as well as Western Star 5700XE, 4900, 57X, and 49X units. It is also compatible with Knorr-Bremse systems.

Installation and maintenance

When performing installation, technicians must ensure the sealing face is perfectly clean and free of debris to prevent leaks. Because torque requirements are specific to the compressor architecture, it is essential to follow the manufacturer's service manual during assembly. Regular inspection of the valve seats and discharge ports is recommended to prevent premature wear.

Troubleshooting and inspection

Maintaining the integrity of the cylinder head is vital for consistent air pressure in the braking system. If air leaks are detected near the compressor body or if discharge pressure drops, this component should be inspected for flatness or port erosion. Consult your authorized distributor.