Description
277730X – TF-500 CAT AIR BRAKE COMPRESSOR – REMANUFACTURED
PART NUMBER(S):
Fleet Products: 277730X (Remanufactured) | Replaces OE: Bendix: 276236, 277730, 278810, 281488, 284005, 284006, 065491, 109285, 109336, 5003648, 5005466, 5005415 | CAT: 1P5010, 1P5011, 5M2871, 5M8271
DESCRIPTION:
Model: Bendix Tu-Flo 500 (TF-500) CAT Air Brake Compressor
Vehicles: Heavy trucks, semi trucks, 18 wheelers, and commercial truck applications
• Air Inlet Location: Right
• Air Outlet Location: Right, with optional top or left discharge
• Cooling: Water or air cooled
• Shaft: 22 tooth spline
• Mounting: Flange mount
• Drive: Engine drive, pulley driven
• Discharge Type: Flange
• No. of Cylinders: 2
• Bore: 2.5 in
• Stroke: 1.6875 in
• Displacement @ 1250 RPM: 12 CFM
• Max RPM: 3000 water cooled / 2400 air cooled
• Coolant Flow: 2.5 GPM
• Air Flow Requirement: 250 CFM
• HP @ 1250 RPM: 2.3 HP
• Temperature Range: 250°F inlet / 400°F discharge
• Unload Pressure: 60 PSI
• Oil Pressure: 5 PSI idle / 15 PSI maximum
• Oil Capacity: 0.53 qt
• Line Sizes: 5/8 in OD discharge, 1/2 in OD coolant, 1/4 in OD oil supply, 5/8 in OD oil return, 5/8 in ID air inlet
Applications:
Used on CAT engine applications requiring a TF-500 compressor with 22 tooth spline shaft, flange mounting, right-side inlet, and right/top/left discharge configuration. The compressor supplies air for service brake and auxiliary pneumatic systems and is typically replaced due to reduced air output, oil carryover, overheating, or internal wear.
CROSS-REFERENCE(S):
1P-5010, 1P-5011, 5M-2871, 5M-8271
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 CAT fitment, 22 tooth spline shaft, flange mounting, and right-side inlet/outlet orientation before installation
✔ Confirm optional top or left discharge configuration against the original compressor
✔ Use installation gaskets as required during installation
✔ Check discharge, coolant, oil supply, oil return, and air inlet lines for restrictions before startup
✔ Follow standard TF-500 service guidelines for pulley nut and mounting bolt torque where applicable
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
