Description
107917X - TF-550 CAT AIR BRAKE COMPRESSOR – REMANUFACTURED
PART NUMBER(S):
Fleet Products: 107917X (Remanufactured) | Replaces OE: Bendix: 107806, 107807, 107917, 108729, 108988, 109544, 109543 | CAT: 113-7665, 4P0619, M1290T, 0R3410
DESCRIPTION:
Model: Bendix Tu-Flo 550 (TF-550) CAT Air Brake Compressor
Vehicles: Caterpillar 3406B and 3176 engine applications
• Air Inlet Location: Left side, viewed from rear
• Air Outlet Location: Left or top selectable discharge
• Cooling: Water and air cooled
• Shaft: 22 tooth spline
• Mounting Style: Flange mount
• Drive Type: Engine driven
• Discharge Type: Threaded, flange/top
• 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 3406B and 3176 engine applications requiring a TF-550 compressor with 22 tooth spline, flange mounting, and selectable left or top discharge. 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):
1137665, 4P-0619, 0R3410, 0R-3410, EL13301, 065606, 109542, 5006820, OR4382, 0R4382, 0R-4382
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 3406B/3176 fitment, 22 tooth spline, flange mounting, and left/top discharge orientation before installation
✔ 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, keep oil supply/return lines unrestricted, and drain reservoirs before service
✔ 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
