4089222 Cummins Compatible Compressor Crankshaft Flange

What does a crankshaft flange do?

The compressor crankshaft flange serves as a critical component within the air brake compressor assembly of heavy commercial vehicles. This part is essential for maintaining the structural integrity and precise rotational movement required to convert engine power into pneumatic pressure. By utilizing high-strength components, this flange ensures reliable performance under the intense mechanical stresses found in heavy-duty engine environments.

Engine compatibility and fitment

This specific component is compatible with Cummins engines, including various series such as X12, QSB, QSX15, ISX, ISB6.7, ISX15, ISB, QSC8.3, 6BT5.9, QSB6.7, QSL9, and ISC8.3. It is engineered to meet the rigorous demands of these engine platforms to ensure consistent air brake system operation.

Installation and maintenance guidance

To ensure proper installation and prevent premature wear or vibration, technicians should verify the pilot diameter and bolt hole patterns against the existing compressor housing. Regular inspection of the flange and its mounting points is recommended during routine air brake system maintenance to prevent air leakage or mechanical failure.

Selection and troubleshooting

Selecting the correct flange for the specific compressor type is vital for avoiding installation issues. Consult your authorized distributor to confirm compatibility with your specific engine series.

OE cross-reference

7500 750 004 (Compressor Crankshaft Flange) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 4089222.