4089222 Cummins Compatible Crankshaft Flange

What does a crankshaft flange do?

The crankshaft flange serves as a critical component within the air brake compressor assembly, facilitating the necessary movement required for efficient air compression. By ensuring a stable connection between the crankshaft and its connected moving assembly, this part helps maintain the integrity of the entire pneumatic system in heavy commercial vehicles.

Engine compatibility and fitment

This component is specifically designed to be compatible with several Cummins engine series, including the X12, QSX15, ISX15, and ISB6.7 engines. It also provides fitment for QSB, QSL9, ISC8.3, and 6BT5.9 engine configurations, ensuring reliable operation across a wide range of heavy-duty applications.

Maintenance and installation guidance

For workshop technicians performing compressor overhauls, inspecting the flange during crankshaft repairs is vital. Ensuring the flange is seated correctly prevents issues with the compression stroke and protects other moving parts like bearings and seals from premature wear. Check the compatibility list to ensure correct fitment before installation.

System reliability and selection

Regular maintenance of the compressor assembly helps prevent unexpected downtime in fleet operations. When replacing parts within the crankshaft system, using high-strength components ensures long-term durability under heavy-duty operating conditions.

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.