The Bendix BA-921 Air Compressor, part number 5012533X, is a genuine Bendix air brake system compressor for heavy-duty truck applications. This unit is cataloged under Bendix's air brake compressor line and carries a broad set of cross-reference numbers including 20R0178, 2233637, 5012533BXR, and BC125566, making it a common replacement reference across multiple OEM and aftermarket sourcing systems. If you are cross-referencing from a fleet parts list or matching an older part number, those interchanges are listed below. Pro Gear and Transmission sells this as a genuine Bendix part. Call us to confirm proper fit for your specific truck or application before ordering.
A refundable core charge of $700.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
Bendix BA-921 air compressor model designation
Genuine Bendix part number 5012533X
Broad cross-reference coverage: includes 20R0178, 2233637, 5012533BXR, BC125566, and others
Alternate part numbers: BW5012533X, BX5012533X, 745-5012533X, R9555012533X
Sold by Pro Gear and Transmission as a genuine Bendix component
