Description
104103X BX-2150 CUMMINS COMPRESSOR – REMANUFACTURED
PART NUMBER(S):
Fleet Products: 104103X (Remanufactured) | Replaces OE: Bendix: 104103, KNT86230, E-BN104103X, 104002, 065055 | Cummins: 3905724
DESCRIPTION:
Model: Bendix BX-2150 Cummins Air Brake Compressor
Vehicles: Cummins B-Series engine applications
• Compressor Type: Single-cylinder, reciprocating air brake compressor
• Drive Type: Engine drive, non-thru-drive
• Cooling: Water-cooled cylinder head with air-cooled crankcase
• Mounting: Flange mount
• Discharge Type: Front threaded
• Air Inlet Port: Optional, head rotatable 90°
• Air Outlet Port: Optional top or side
• Number of Cylinders: 1
• Bore × Stroke: 3.375 in × 1.468 in
• Displacement at 1,250 RPM: 9.5 CFM
• Maximum Recommended RPM: 3,000 (2,200 turbo)
• Approximate Horsepower at 1,250 RPM / 120 PSIG: 1.7 HP
• Coolant Flow: 0.5 GPM minimum; 2.5 GPM maximum
• Maximum Boost Pressure: 15 PSIG (turbocharged)
• Maximum Inlet / Discharge Air Temperature: 250°F / 400°F
• Minimum Unloader Pressure: 60 PSIG naturally aspirated; 85 PSIG turbocharged
• Minimum Oil Pressure: 5 PSIG at idle; 15 PSIG running
• Minimum Line Sizes: 1/2 in I.D. discharge; 3/8 in I.D. coolant; 3/16 in I.D. oil supply; 1/2 in I.D. oil return; 5/8 in I.D. air inlet; 3/16 in I.D. unloader
• Cylinder Head Positions: Four positions, 90° apart
Applications:
Used on Cummins B-Series engine applications requiring a BX-2150 flange-mount air brake compressor with non-thru-drive configuration. The compressor supplies compressed air for brake and auxiliary pneumatic systems and is typically replaced when air output decreases, leakage occurs, or internal wear affects system performance.
CROSS-REFERENCE(S):
104103, KNT86230, E-BN104103X
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Cylinder head can be rotated in 90° increments; install a new gasket if repositioned
✔ Do not exceed 120 ft-lb when tightening the crankshaft nut
✔ Torque cylinder head cap screws to 175–225 in-lb
✔ Torque 1/2 in pipe plugs to 200–270 in-lb
✔ Verify flange mount alignment before installation
✔ Check for air, oil and coolant leaks after installation
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
