Description
TF-550 AIR BRAKE COMPRESSOR – NAVISTAR DT466/HT530 APPLICATION
PART NUMBER(S):
Fleet Products: 5004613X (Remanufactured) | OE: 5004613, 3663597C91, 1694953C91, 2003252C97 1694005C91
DESCRIPTION:
Model: Tu-Flo 550
Vehicles: Navistar DT466/HT530/HT570 Engines (1987+), 3600 School Bus Chassis, 4000/4700 Medium Trucks, IC Buses
• Engine Fitment: DT466, HT530, HT570 diesel platforms
• Displacement: 12 CFM @ 1250 RPM
• Cooling Type: Water-cooled
• Mounting: Flange
• Pulley Drive: Belt-driven
• Crankshaft: Tapered shaft with 11-tooth gear
• Inlet Port: Left side
• Outlet Port: Top (vertical discharge)
• Port Type: Metric (for HT530/HT570 variants)
• Weight: Approx. 43.8 lbs
• Build: OEM-grade, remanufactured to exacting standards (core return required)
Applications:
The TF-550 is a heavy-duty air brake compressor used in Navistar DT466 and HT-series engines found in vocational trucks, buses, and fleet chassis. Designed for long-duty cycles and durability, it powers pneumatic systems such as brakes, suspension, and accessories.
CROSS-REFERENCE(S):
5004613, 3663597C91, 1694953C91, 570287C94, 5019445X, 5014488X, 5004614X, 5014144X, 0109087, 0109088, 043074, 065457, 109087, 109088, 1694005C91, 1694005C92, 2003252C91, 2003252C92, 2003252C93, 2003252C94, 2003252C95, 2003252C96, 2003252C97, 5004611, 5004613, 5012663, 65457, 800468, 801484, 9555004613
A cross-reference listing means this part may be a compatible replacement for the part numbers listed based on OE or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Confirm compatibility with DT466/HT530 engine mounting flange and air routing
✔ Replace all gaskets and fittings with new components during install
✔ Use OEM torque specs to prevent flange leaks or gear misalignment
✔ Check drive belt condition and tension before startup
✔ Ensure cooling system lines are properly routed and flushed
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
