Description
109863X – TF-750 CAT AIR BRAKE COMPRESSOR – REMANUFACTURED
PART NUMBER(S):
Fleet Products: 109863X (Remanufactured), Replacable with 109861X (TF-550) | Replaces OE: Bendix: 109861, 109863, 109824, 109864, 5001533, 5001534, 065683 | Caterpillar: 118-2806, 131-6680
DESCRIPTION:
Model: Bendix Tu-Flo 750 (TF-750) CAT Straight M20 22 Tooth Spline Air Brake Compressor
Vehicles: Caterpillar 3406B, C10, C12, C15, C16, and 3176 engine applications
• Cooling: Water-cooled head with air-cooled crankcase
• Drive Type: Gear-driven, crankshaft thread, Mack-style
• Mounting: Flange mount
• Air Inlet Location: Left side, viewed from rear
• Air Outlet Location: Left or top configurable discharge
• Comparison: Identical to 109142X except with end cover studs
• Lubrication: Engine oil fed
• No. of Cylinders: 2
• Bore x Stroke: 2.78 in x 1.87 in
• Flow @ 1250 RPM: 16.5 CFM
• Max RPM: 2400
• HP @ 1250 RPM / 120 PSIG: 3.2 HP
• Min Coolant Flow @ Max RPM: 2.5 GPM
• Min Unload Pressure: 60 PSIG
• Oil Pressure: 15 PSIG idle and governed
• Temperature Range: 250°F inlet / 400°F discharge
• Port Sizes: 1/2-14 NPT water in/out, 1/2-14 NPT air discharge, 1/8-27 NPT governor, 1/8-27 NPT oil inlet
• Minimum Line Sizes: 1/2 in ID discharge, 3/8 in ID coolant, 3/16 in ID oil supply, 1/2 in ID oil return, 5/8 in ID air inlet, 3/16 in ID unloader
Applications:
Used on Caterpillar 3406B, 3176, C10, C12, C15, and C16 engine applications requiring a TF-750 compressor with straight M20 crankshaft thread, 22 tooth spline configuration, and end cover studs. The compressor supplies air for heavy-duty service brake and auxiliary pneumatic systems and is typically replaced due to reduced air delivery, oil carryover, overheating, or internal wear.
CROSS-REFERENCE(S):
1182806, 1316680, 5002082, 5002826, 5007471, 5005421, 5005491, 0R8442, 0R-8442, OR8442, 0R5253, 0R-5253, OR5253, 164-7564, 1647564, 139-9009, 1399009, 102-9553, 1029553, 109142
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 straight M20 crankshaft thread, 22 tooth spline, end cover studs, and rear-view left/top outlet configuration before installation
✔ Maintain minimum 2.5 GPM coolant flow and do not exceed 2400 RPM
✔ Replace all gaskets and fittings, and use the correct discharge line size with continuous downward slope
✔ Prime oil lines, confirm oil supply/return lines are clean and leak-free, and drain reservoirs before service
✔ Suggested torque: flange nut 80–100 ft-lb; cap screws 175–225 in-lb; cylinder head 300–360 in-lb; inlet/discharge fittings 175–225 in-lb; pipe plugs 35–270 in-lb; crankshaft castle nut 1200–1400 in-lb; crankshaft metric nut 2640–3048 in-lb
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
