5507279 | Genuine Cummins® Pressure Sensing Tube For EPA21 15L ISX/QSX AD-HF® The exhaust manifold bolts directly

The exhaust manifold bolts directly to these ports and combines the gases from all cylinders into a single stream

Often a sign the cap isn’t holding proper tension or alignment

In some diesel engines or agricultural equipment (like those with the DZ116439 compressor):

Kenworth W900L Aerocab 1995 thru Current

5507279 | Genuine Cummins® Pressure Sensing Tube For EPA21 15L ISX/QSX AD-HF® The exhaust manifold bolts directlyPart Number: 5507279 Condition: Used In Good Condition Manufacture Brand: Cummins Related Part Numbers: A059P418, 5507279CUM Description: A pressure sensing tube (also called a pressure sensing module tube) is a small, rigid or semi rigid metal or composite tube used in diesel engines to carry pressure signalssuch as air or exhaust gas pressurefrom a specific location in the engine or exhaust system to a pressure sensor or electronic control module.