Description
286551X - TF-501 CAT AIR BRAKE COMPRESSOR - REMANUFACTURED
PART NUMBER(S):
Fleet Products: 286551X (Remanufactured) | Replaces OE: Bendix: 108970, 286027, 286028, 286551
DESCRIPTION:
Model: Bendix Tu-Flo 501 (TF-501) CAT Air Brake Compressor
Vehicles: Caterpillar 3406 engine applications in heavy-duty trucks, semi trucks, 18 wheelers, and commercial trucks
• Mounting Style: Flange mount
• Drive Type: Engine driven, tapered shaft
• Cooling: Water / air cooled
• Air Inlet Location: Right, viewed from rear
• Air Outlet Location: Top threaded discharge
• Discharge Type: Threaded
• No. of Cylinders: 2
• Bore x Stroke: 2.625 in x 1.50 in
• Displacement @ 1250 RPM: 12 CFM
• Displacement Per Revolution: 16.5 cu in
• Max RPM: 3000 naturally aspirated
• HP @ 3000 RPM / 100 PSI: 4.9 HP
• Minimum Coolant Flow @ Max RPM: 2.5 GPM
• Minimum Unload Pressure: 60 PSI
• Temperature Range: 250°F inlet / 400°F discharge
• Line Sizes: 5/8 in OD copper discharge, 5/8 in OD oil return, 1/4 in OD oil supply, 1/4 in OD unloader, 5/8 in ID inlet cavity to air cleaner, 1/2 in OD coolant
Applications:
Used on Caterpillar 3406 engine applications requiring a TF-501 compressor with flange mounting, tapered shaft drive, right-side inlet, and top-threaded discharge. Match by OE number, CAT 3406 fitment, tapered shaft configuration, port orientation, and discharge adapter before installation.
CROSS-REFERENCE(S):
286550X, 286550, 106770, 106770X
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:
✔ Verify Caterpillar 3406 fitment, flange mount, tapered shaft drive, right-side inlet, and top outlet before installation
✔ Confirm port orientation viewed from the rear of the compressor
✔ Match tapered shaft alignment to the CAT 3406 engine drive before mounting
✔ Confirm threaded outlet and discharge adapter match the original compressor setup
✔ Typical flange torque range: 80–100 ft-lb
PICTURE USED FOR WEBSITE PURPOSE ONLY
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