Description
109142X – TF-750 CAT 3406E AIR BRAKE COMPRESSOR – REMANUFACTURED
PART NUMBER(S):
Fleet Products: 109142X (Remanufactured), Replacable with 109139X (TF-550) | Replaces OE: Ag-Chem Equip: 2158055 | CAT: 102-9551, 102-9552, 102-9553, 118-2798, 131-6679, 132-9813, 139-9009, 143-9185, 164-7564, 164-7566, 185-5145, 0R3845, 0R5253, 0R8340, 0R8442, 1029551, 1182798, 1329813, 1439185, 1855145, 0R-3845, 0R-8340, 0R-8442, OR5253, OR8442 | Ford: 1316679 | Mack: 745X5002984, 5007468X | Volvo: 85106354
DESCRIPTION:
Model: Bendix Tu-Flo 750 (TF-750) CAT Air Brake Compressor
Vehicles: Caterpillar 3406E engine, Caterpillar Earthmoving Compactor 825C and 826C, and Mack extended applications
• Crankshaft: Straight M20 thread, 22-tooth spline
• Type: Twin-cylinder air brake compressor
• Air Inlet Location: Left side
• Air Outlet Location: Top or left discharge configuration
• Bore x Stroke: 2.78 in x 1.87 in
• Swept Volume: 298 cm³
• Port Sizes: 1/2-14 NPT water ports, 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
• Mounting: Flange mount
• Flow: 16.5 CFM @ 1250 RPM
• Maximum RPM: 2400
• Horsepower: 3.2 HP @ 1250 RPM / 120 PSIG
• Operating Pressure: 125–150 PSI
• Minimum Unload Pressure: 60 PSIG
• Cooling: Water-cooled
• Includes: Installation gaskets and hardware
Applications:
Used on Caterpillar 3406E and selected Caterpillar earthmoving applications requiring a TF-750 compressor with straight M20 crankshaft thread and 22-tooth spline configuration. 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 compressor wear.
CROSS-REFERENCE(S):
1029552, 1029553, 1399009, 1647564, 1647566, OR3845, 0R-5253, OR8340, 5003230, 5003229, 5003228, 5002032, 5001774, 5001773, 5001523, 5001522, 109861, 109860, 109816, 109321, 109319, 109139, 109138, 108990, 800292, 65684, 65465, 65424, 109141, 109142, 109322, 065466, 5001533, 5001534, 5001789, 5002082, 5002713, 5002826, 5003233, 5005419, 5005421, 5005491, 800291, 800594, 0R4740, 0R8549, 109138X, 109197, 109319X, 109425, 109425X, 109824, 109861X, 109864, 1182806, 1316680, 1337032, 1439186, 1440748, 1483684, 1575365, 1647567, 1659169, 1659170, 1668305, 1671288, 2342413, 3547528, 5002984, 5002984X, 5003228X, 5003231, 5003232, 5003234, 5003235, 5003236, 5005422, 5005478, 5005479, 5005492, 5005606, 5005790, 5005790X, 5007469, 5007469X, 5007471, 6I3906, 9Y6320, BX109138, BX109141, BX109319, BX109321, BX109322, K046146, R9555002984X, R9555005790X, S13753
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, flange mounting, and top/left discharge configuration before installation
✔ Maintain minimum 2.5 GPM coolant flow and do not exceed 2400 RPM
✔ Replace all gaskets, seals, and fittings, and use the correct discharge line size with continuous downward slope
✔ Prime oil supply lines, verify leak-free operation, and drain reservoirs before air system service
✔ Suggested torque: 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
Warranty Information
