Description
BA-922 AIR BRAKE COMPRESSOR (CATERPILLAR)
PART NUMBER(S):
Fleet Products: 5013058 (New) | OE (Bendix): 5013058, 10R9375, 5014427X
DESCRIPTION:
Model: BA-922 Twin Piston Air Brake Compressor ACERT Engines (Pre-2007)
Vehicles: Caterpillar engine applications; Freightliner, International, Kenworth, Peterbilt, Western Star, and other heavy-duty diesel truck applications using BA-922 style compressors
• Air Inlet Location: Top
- Cylinders: 2
- Bore x Stroke: 3.622 in x 2.125 in
- Displacement @1250 RPM: 31.7 CFM
- Flow @1800 RPM /120 PSI: 25.2 CFM
- Flow @3000 RPM /120 PSI: 38.4 CFM
- Max RPM: 3000
- HP @1800 RPM /120 PSIG: 8.73 HP (loaded) / 1.96 HP (unloaded)
- Min Coolant Flow @Max RPM: 2.0 gpm
- Oil Pressure (min): 15 PSI
- Governor Cut-Out (min): 120 PSI
- Oil Supply Line: 3/16 in ID
- Unloader Line: 3/16 in ID
- Temp Range: 170°F inlet / 350°F discharge
Port Sizes
- Air Inlet: 1 3/16-12 UN or M27 x 2
- Air Discharge: 7/8-14 UNF or M22 x 1.5
- Water Ports: 3/4-16 UNF or M18 x 1.5
- Unloader Port: 1/8-27 NPT or M10 x 1.5
- Safety Valve Port: M16 x 1.5 or 3/4-16 UNF
- Oil Port: 7/16-20 UNF or M12 x 1.5
• Mounting: SAE flange-mounted with 42-tooth drive gear (4.7 in. diameter)
• Drive Type: Gear-driven
• Air Inlet: Top
• Air Outlet: Top
• Discharge Type: Threaded port configuration
• Lubrication: Engine-oil pressure fed
• Governor Port: SAE-threaded
Applications: Engineered for Caterpillar and heavy-duty truck applications using the BA-922 style compressor for primary brake air supply. Designed for engine-driven systems requiring a twin-piston compressor with top inlet and outlet configuration, threaded discharge, and SAE flange mounting. Match all mounting, drive gear, port layout, and performance specifications before installation.
CROSS-REFERENCE(S):
5013058, 5013058X, 10R9375, 5014427X, 801594, 5011624, 5013063, 5013064, 10R-2767, 226-9579, 257-9346, BA-922, 5014427, 046255012533X, BDR5012533X, BEX5012533X, 745-5012533X, 0R-1623, 0R1623, 165-179-9213, 1651799213, 20R-0177, 20R0177, 222-2900, 2222900, 223-3636, 2233636, 253-1736, 2531736, 254-3853, 2543853, 255-4160, 2554160, 2N-1287, 2N1287, 353-7136, 3537136, 385-0936, 3850936, 5011441, 5011441X, 5012459, 5012464, 5012510, 5014177, 5014180, 5014235, 5014236, 5014401, 5014401X, 5014402, 5014402X, 5014428, 801465, 801798, 801826, K048938, K048939, K048940, K056647, K056647X, K056649, K066811, K066831, K066837, R9555014428X, T-5011432, T5011432, VMX1007105, VMX1010226, R9555013058X, 335-6328
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
- Ensure oil supply line is primed before startup.
- Verify all air, coolant, and oil connections are properly sealed.
- Drain all air reservoirs before servicing the air brake system.
- Verify compressor mounting hardware and fittings before operation.
Installation Torque Values
- Cylinder Head (M8): 265–292 in-lb
- Governor Adapter (M8): 195–213 in-lb
- Rear End Cover (M8): 195–213 in-lb
- Crankshaft Nut (M20 x 2.5): 1858–2567 in-lb (210–290 Nm)
- Inlet Port Fitting: 575–637 in-lb
- Discharge Port Fitting: 460–504 in-lb
- Water Port Fitting: 319–345 in-lb
- Safety Valve Port: 230–257 in-lb
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Warranty Information
