Description
109604X – TF-750 CAT COMPRESSOR (CATERPILLAR 3304 / 3306 / 3406B / 3176)
PART NUMBER(S):
Fleet Products: 109604X (Remanufactured) | OE: 109545, 109546, 109547, 109604, 65607, 065607, 107023, 107043, 107053, 108989, K109604X, K109604, K-109604
CAT: 113-7666, 164-7563, 0R3411, 0R4383, 0R9763, 4P0586, 4P-0586
Volvo: 700018003, 70001-8003
DESCRIPTION:
Model: TF-750 CAT Compressor Crankshaft: 22 Tooth Spline, Straight M-20 Thd.
Vehicles: Caterpillar 3304, 3306, 3406B, 3176
• Cooling: Water Cooled
• Drive Type: Gear Drive, Engine Driven
• Mounting: Flange Mount
- 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 & 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
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
• Shaft Type: 11-Tooth Spline
Applications:
Fits Caterpillar 3304, 3306, 3406B, and 3176 engine platforms used in heavy trucks, off-road equipment, and industrial applications requiring a 15 CFM high-output air brake compressor with flexible porting. If Crankshaft: Tapered 3/4 Thd. 108991, 065426 | CAT 9Y-6320
CROSS-REFERENCE(S):
109604X, 109604, K109604X, K109604, K-109604, 5335362, 5335363, 5335379, 5335380, 5335381, 5335382, PM109604X, TF-750, TF750, 107023X
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:
✔ Port orientation viewed from rear
✔ Mounting bolt torque: 45–50 Nm (33–37 lb-ft)
✔ Unloader bolt torque: 10–14 Nm (7–10 lb-ft)
✔ Valve plate bolt torque: 15–23 Nm (11–17 lb-ft)
- Maintain minimum 2.5 gpm coolant flow.
- Do not exceed 2400 RPM. Replace all gaskets and fittings.
- Use correct discharge line size with continuous downward slope.
- Ensure oil lines are primed and leak-free before startup.
- Drain reservoirs and flush coolant and air lines 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 (size dependent)
- Crankshaft Nut (Castle): 1200–1400 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
