4089222 Cummins Compatible Crankshaft Flange

What does a crankshaft flange do?

This crankshaft flange serves as a critical component within the air brake compressor assembly, facilitating the transfer of mechanical energy to the moving parts of the system. Built with heavy-duty grade materials, this part ensures the structural integrity of the crankshaft connection under high-pressure operating conditions in heavy commercial vehicles.

Engine compatibility and fitment

The component is engineered for compatibility with various Cummins engine series, including X12, QSX15, ISX, ISB6.7, ISB, QSC8.3, 6BT5.9, QSB6.7, QSL9, and ISC8.3. Using an exact match for the compressor type ensures proper alignment and prevents premature wear of the internal seals or bearings.

Installation and maintenance guidance

For workshop technicians performing an overhaul, verifying the flange thickness and bolt hole configuration is essential during installation. Proper seating of the flange prevents air leakage and reduces unwanted vibrations within the compressor housing. Consult your authorized distributor for fitment verification.

System reliability

Maintaining the integrity of the crankshaft assembly is vital for the overall reliability of the pneumatic braking system.

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.