11 33 13 Compressor Crankshaft Flange

This crankshaft flange serves as a critical component within the air brake compressor assembly, ensuring the stable transfer of motion and secure mounting of the drive system. Manufactured from heavy-duty grade materials, it is designed to withstand the high-pressure environments and constant mechanical stress characteristic of heavy commercial vehicle braking systems.

The 11 33 13 is the OE equivalent of the Detroit Diesel crankshaft flange used in Freightliner Century Class, Coronado, and Cascadia models, as well as Western Star 4900 and 5700XE series. It is also compatible with various Detroit Diesel DD series engines and Kenworth T800 applications. Check the compatibility list for full details.

For optimal performance, technicians should verify the pilot diameter, bolt hole circle, and flange thickness against the original component before installation. Proper seating is essential to prevent vibration or air leakage within the compressor housing. Regular inspection of the flange mounting surface during compressor overhauls can help prevent premature wear in the pneumatic system.

Selecting the correct flange based on the compressor type and casting number ensures long-term reliability in demanding service conditions.