Description
109251X – TF-550 CAT 22T AIR BRAKE COMPRESSOR – REMANUFACTURED
PART NUMBER(S):
Fleet Products: 109251X (Remanufactured), Replacable with 109287X (TF-750) | Replaces OE: Caterpillar: 1091317, 1105764, 1442906, 0R3404, 4P0596, 1494915, 109-1317, 110-5764, 144-0744, 1440744, 0R9766 | Bendix: 109250, 109251, 109279, 109335, 065475
DESCRIPTION:
Model: Bendix Tu-Flo 550 (TF-550) CAT 22T Air Brake Compressor
Vehicles: Caterpillar 3304, 3306, 3306B, 3306C, 1673C, G3306, 3406B, 3406E, 3176, C15, Motor Grader, Wheel Loader, Wheel Scraper, and Wheel Tractor applications
• Cooling: Water and air cooled
• Mounting: Engine drive, flange mount
• Air Inlet Location: Left side, may vary by variant
• Air Outlet Location: Top or left discharge
• Discharge Type: Threaded
• Spline: 22 tooth
• No. of Cylinders: 2
• Bore x Stroke: 2.78 in x 1.50 in
• Flow @ 1250 RPM: 13.2 CFM
• Max RPM: 3000
• HP @ 1250 RPM / 120 PSIG: 2.5 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, 1/2-14 NPT oil return
• 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 3300-series engine and heavy equipment applications requiring a 22-tooth spline TF-550 flange-mount compressor. 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):
109-1318, 110-5766, 144-2906, 0R-3404, OR3404, 4P-0596, 149-4915, 0R-9766, OR9766, CA1091317, A1440744, 5011016X, 109139X, 0R3659, 0R-3659, OR3659, 107981X
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 flange type before installation; if 3-bolt configuration is present, use 109603X
✔ Maintain minimum 2.5 GPM coolant flow and do not exceed 3000 RPM
✔ Use properly sized discharge, coolant, oil supply, oil return, air inlet, and unloader lines as specified
✔ Route the discharge line with proper downward slope and ensure oil supply/return lines are unrestricted before startup
✔ Suggested torque: cylinder head 440–500 in-lb; inlet/discharge fittings 175–225 in-lb; pipe plugs 35–270 in-lb; crankshaft castle nut 1200–1440 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
