Description
107917X - TF-550 CAT COMPRESSOR
PART NUMBER(S):
Fleet Products: 107917X (Remanufactured) | OE: 113-7665, 109603, EL13301, 107806, 109544, 109603, 109543 | CAT: 4P0619, M1290T, OR3410
DESCRIPTION:
Model: TF-550 CAT
Vehicles: Caterpillar 3406B, 3176
• Air Inlet: Left (viewed from rear)
• Air Outlet: Left/Top (selectable)
• Cooling: Water/Air
• Shaft: 22 Tooth Spline
• Mounting Style: Flange Mount
• Drive Type: Engine Driven
• Discharge Type: Threaded – Flange/Top
- 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 & governed)
- Temp Range: 250°F inlet / 400°F discharge
Port Sizes (NPT)
- Water In / Out: 1/2-14
- Air Discharge: 1/2-14
- Governor: 1/8-27
- Oil Inlet: 1/8-27
- Oil Return (base): 1/2-14
Minimum Line Sizes
- Discharge: 1/2 in ID
- Coolant: 3/8 in ID
- Oil Supply: 3/16 in ID
- Oil Return: 1/2 in ID
- Air Inlet: 5/8 in ID
- Unloader: 3/16 in ID
Applications:
Used on Caterpillar-powered heavy-duty trucks with 3406B or 3176 engines requiring TF-550 compressors. Designed for air brake system pressurization and auxiliary pneumatic systems in demanding fleet environments.
CROSS-REFERENCE(S):
107917, 113-7665, 109603, EL13301, 3406B, 065606, 107806, 109542, 109544, 5006820, OR4382
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
- Maintain minimum 2.5 gpm coolant flow.
- Do not exceed 3000 RPM.
- Use properly sized discharge line with downward slope.
- Ensure oil supply/return lines are unrestricted before startup.
- Drain all air reservoirs before service.
Suggested torque
- Cylinder Head: 440–500 in-lb
- Inlet / Discharge Fittings: 175–225 in-lb
- Pipe Plugs: 35–270 in-lb (size dependent)
- Crankshaft Nut (Castle): 1200–1440 in-lb (100–120 ft-lb)
- Crankshaft Nut (Metric): 2640–3048 in-lb (220–254 ft-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.
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Warranty Information
