Description
104103X – BX-2150 CUMMINS COMPRESSOR
PART NUMBER(S):
Fleet Products: 104103X (Remanufactured) | OE: 104103, KNT86230, E-BN104103X, 104002, 104103, 065055 | Cummins: 3905724
DESCRIPTION:
Model: BX-2150 Cummins
Vehicles: Cummins B-Series Engines
• Drive Type: Engine Drive (Non-Thru-Drive)
• Cooling: Water-cooled cylinder head, air-cooled crankcase
• Bore: 3.375 in
• Stroke: 1.468 in
• CFM: 9.5 @ 1250 RPM
• Discharge Type: Front Threaded
• Air Inlet: Optional (head rotatable 90°)
• Air Outlet: Optional (top or side)
• Mounting: Flange Mount
• Cylinders: 1
• Weight: 33 lb
• Bore x Stroke: 3.375 in x 1.468 in
• Displ @1250 RPM: 9.5 CFM
• Max RPM: 3000 (2200 turbo)
• HP @1250 RPM /120 PSIG: 1.7 HP
• Coolant Flow (water-cooled): 2.5 gpm @max / 0.5 gpm @min
• Max Boost (turbo): 15 PSIG
• Max Temps: 250°F inlet / 400°F discharge
• Unload Pressure: 60 PSIG NA / 85 PSIG turbo
• Oil Pressure: 5 PSIG idle / 15 PSIG running
• Discharge Line: 1/2 in ID
• Coolant Line: 3/8 in ID
• Oil Supply: 3/16 in ID
• Oil Return: 1/2 in ID
• Air Inlet: 5/8 in ID
• Unloader Line: 3/16 in ID
Applications:
Designed for Cummins B-Series engines in commercial trucks where a BX-2150 flange mount air brake compressor is required. This model features an older-style head, non-thru-drive configuration, and rotatable cylinder head for installation flexibility.
CROSS-REFERENCE(S):
104103, KNT86230, E-BN104103X, BX2150
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:
✔ Cylinder head rotatable in 90° increments; gasket required if repositioned
✔ Crankshaft nut torque: Max 120 ft-lbs
✔ Head cap screws torque: 175–225 in-lbs (14.6–18.8 ft-lbs)
✔ Pipe plug (1/2") torque: 200–270 in-lbs
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
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Warranty Information
