Description
5010806X - BA-921 CAT COMPRESSOR – REMAN
PART NUMBER(S):
Fleet Products: 5010806X (Remanufactured) | Replaces OE: Bendix 5010805, 5010803, 5010803X, 5010804, 5010806, 5010806X, 5014427X, 5015207, 5015208, 5016858, 801285, 801955, K048932, K048933, K048934, K048935, K048936, K048937, K066809, K066810, K066829, K066830, K066836, K068004 | CAT 191-6521, 246-7095, 353-7134, 353-7135, 385-0933, 385-0935, 20R-0176, 20R0176
DESCRIPTION:
Model: BA-921 CAT Compressor ACERT Engines (Pre-2007)
Vehicles: Caterpillar engines: C7, C9, 3126 Rear Flange Rotation - 0° ACERT Engines (Pre-2007)
• Type: Single-stage, reciprocating piston
• Series: BA-921
• Operation: Engine driven
• Mounting: Side mount, 2-bolt flange
• Cooling: Air/Water cooled (water-cooled configuration)
- Cylinders: 1
- Bore x Stroke: 3.622 in x 2.126 in
- Displacement @1250 RPM: 15.8 CFM
- Flow @1800 RPM /120 PSI: 11.6 CFM
- Flow @3000 RPM /120 PSI: 16.5 CFM
- HP @1800 RPM /120 PSIG: 4.6 HP (loaded) / 0.8 HP (unloaded)
- Min Coolant Flow @Max RPM: 1.5 gpm
- Oil Pressure (min): 15 PSI
- Governor Cut-Out (min): 120 PSI
- Unloader Line: 3/16 in ID
- Temp Range: 170°F inlet / 400°F discharge
Port Sizes & Required Torque
- Cylinder Head (M8): 265–292 in-lb
- Governor Adapter (M8): 195–213 in-lb
- Rear End Cover (M10): 195–213 in-lb
- Inlet Port Fitting (M27x2): 991–1089 in-lb
- Discharge Port Fitting (M22x1.5): 814–912 in-lb
- Water Port Fitting (M18x1.5): 593–637 in-lb
- Oil Port (7/16-16 UNF): 150–170 in-lb
- Unloader Port (1/8-27 NPT): 2–3 turns from finger tight
• Air Inlet Location: Top
• Safety Valve Port Diameter: M16 x 1.5
• Includes: Installation gaskets
Applications:
Direct-fit replacement for air brake compressors in heavy-duty vehicles using Caterpillar engines, including C7, C9, C11, C13, C15, C18, and International 15L engines. Ideal for air brake actuation in commercial trucks and vocational equipment.
CROSS-REFERENCE(S):
046255012533X, BDR5012533X, BEX5012533X, 745-5012533X, BW5010806X, BX5010806, 5010806BXR, EX5010806X, BX5010806X, BAR5010806, BWR5010806, HVG5010806X, BEN5010806X, 3850935
A cross-reference listing means this part should be a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
- Maintain minimum 1.5 gpm coolant flow.
- Ensure external oil supply line is connected for single piston applications.
- Verify air and coolant fittings are properly sealed before startup.
- Drain air reservoirs before servicing air brake components.
- Verify all fasteners are torqued to specification before returning vehicle to service.
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
