Product Description
TF-550 CATERPILLAR AIR BRAKE COMPRESSOR (CERTIFIED REMANUFACTURED)
PART NUMBER(S):
Fleet Products: 109139X (Reman) | OE (Caterpillar): 109139
DESCRIPTION:
Model: TF-550
Vehicles: Caterpillar C-Series Engines — 3406, C10, C12, C15, C16
• Mounting: Flange mount
• Cooling: Water cooled
• Air Inlet: Left side
• Air Outlet: Left side or optional top discharge
• Drive Type: Engine driven
• Crankshaft Thread: Present (for pulley attachment)
• Port Orientation: Viewed from rear
• Includes: Installation gaskets
Applications:
Certified remanufactured air brake compressor designed for Caterpillar heavy-duty diesel engines. Built to OEM standards for durability and consistent performance. Supports multiple discharge orientations to fit specific engine configurations. Sold as remanufactured — core return required.
CROSS-REFERENCE(S):
0109138, 0109139, 0109319, 0109321, 065465, 065684, 0745X5002984, 0R-3845, 0R-8340, 0R3845, 0R4740, 0R8253, 0R8340, 102-955, 102-9551, 109138, 109138X, 109139, 109139X, 109319, 109319X, 109321, 109816, 109860, 109861, 109861X, 118-2798, 131-6670, 131-6679, 131-6697, 132-9813, 143-9185, 1827981, 1828061, 215-8055, 3166791, 3166801, 3298131, 3298141, 3370321, 4397851, 5001522, 5001522X, 5001523, 5001533, 5001773, 5001774, 5002032, 5002032X, 5002984, 5002984X, 5002984BXR, 5003228, 5003228X, 5005491, 5011522, 5396-109139X, 5550029, 6475641, 704413AT, 7050029, 7455002984X, 767653140353, 800292, 8421580, 84HDX, BX065465, BX109139, BX109319, BX109321, HDX109139X, MBI109139X, MID109139X, OR3845, R109139, ZZ109139X
A cross-reference listing means this part should be a suitable replacement for the numbers shown. Always confirm specifications before installation.
IMPORTANT INSTALLATION NOTES:
✔ Verify compatibility with Caterpillar C-Series engines before installation
✔ Choose correct discharge port (left or top) per your engine setup
✔ Use provided gaskets to ensure a proper seal
✔ Confirm crankshaft thread matches pulley requirements
✔ Match water cooling port alignment with factory specs
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, call 1-877-243-0442 or email sales@fleet-products.com .
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