Description
108790X BX-2150 CUMMINS COMPRESSOR – REMANUFACTURED
PART NUMBER(S):
Fleet Products: 108790X (Remanufactured) | Replaces OE: Bendix: 104102, 109079, KNT86230, 108788, 108789, 108790, 109045, 065375, 109045X | Ford: F3HT-2875-EB
DESCRIPTION:
Model: Bendix BX-2150 Cummins Air Brake Compressor
Vehicles: Cummins B Series engine applications, including B5.9, in turbocharged heavy trucks and 18-wheelers
• Compressor Type: Single-cylinder, reciprocating air brake compressor
• Cooling: Water-cooled head with air-cooled crankcase
• Drive Type: Engine driven, geared pulley
• Mounting: Flange mount, tapered shaft
• Air Inlet Port: Right side, viewed from rear
• Air Outlet Port: Front threaded discharge
• Cylinder Head Positions: Four positions, 90° apart
• 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
Applications:
Used on Cummins B Series engine platforms requiring a BX-2150 compressor with right-side intake, front threaded discharge and flange-mounted tapered shaft 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):
KNT86230X, E-BN104102X, BX104102, 109079X
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:
✔ View port orientation from the rear of the compressor
✔ Cylinder head can be rotated in four positions; install an additional gasket if repositioned
✔ Verify flange mount and tapered shaft fitment before installation
✔ Inspect all oil, coolant and air connections before startup
✔ Check for air, oil and coolant leaks after installation
✔ Torque mounting fasteners to 80–100 ft-lb where applicable, or follow OEM specification
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
