304-2693 | Genuine CAT BA-922 Twin Cylinder Air Brake Compressor

The Genuine CAT BA-922 Twin Cylinder Air Brake Compressor, part number 304-2693, is an engine-driven air compressor designed to supply compressed air to compatible pneumatic systems. It is listed for selected Caterpillar C15 truck and industrial engine applications, as well as certain C18 industrial engines. Confirm the exact engine configuration and compressor specifications before ordering.

PRODUCT INFORMATION

• Part Number: 304-2693

• Brand: Caterpillar (CAT)

• Model: BA-922

• Part Name: Twin Cylinder Air Brake Compressor

• Component Type: Engine-Driven Air Compressor

• Number of Cylinders: 2

• Drive Gear: 40-tooth, according to available parts listings

• Compatible Engine Families: Selected Caterpillar C15 and C18 configurations

• Condition: Confirm the actual condition of the item before publishing

APPLICATIONS

Part number 304-2693 is listed for selected Caterpillar C15 truck engines and C15/C18 industrial engine applications. Compatibility depends on the engine configuration and compressor design. Verify the engine serial number, original compressor number, drive gear, mounting arrangement, and port configuration before purchase.

FUNCTION

The CAT BA-922 air compressor generates compressed air for compatible pneumatic systems. In truck applications, compressed air is used by the air brake system and other air-operated components. Correct compressor operation helps maintain the required air supply.

COMMON SIGNS OF AIR COMPRESSOR FAILURE

A worn, damaged, or failing air brake compressor may cause symptoms such as:

• Slow air pressure build-up

• Difficulty maintaining the required air pressure

• Air leaks around compressor connections

• Excessive oil carryover into the air system

• Unusual compressor noise or vibration

• Low-air-pressure warnings caused by insufficient air supply

These symptoms can have other causes and should be confirmed through proper diagnostics.

WHY REPLACE A CAT AIR BRAKE COMPRESSOR?

A faulty air compressor may not supply sufficient compressed air for the vehicle's pneumatic systems. Replacing a confirmed defective unit with the correct replacement compressor helps restore the required air supply and supports reliable system operation.

FITMENT INFORMATION

Before ordering, verify part number 304-2693, the original compressor identification, engine serial number, drive gear, mounting points, and port arrangement. Related references include 10R-2768, 10R-6316, 226-9580, 5011625, 5013059, 5013070, and 5013071. These numbers appear in cross-reference listings, but compatibility must be confirmed for the specific application.

The CAT catalog lists part number 304-2693 as discontinued and shows 10R-6317 as a remanufactured alternative. This does not establish the condition of the item being sold.

GENUINE CAT PART

This listing identifies Caterpillar part number 304-2693, associated with the BA-922 Twin Cylinder Air Brake Compressor. Confirm the actual item condition, manufacturer markings, included components, and fitment before purchase.