Product Description
101247X TF-400 Air Brake Compressor – Bendix Style Replacement
The 101247X TF-400 air compressor is a heavy-duty replacement unit designed for commercial truck air brake systems. This compressor is currently in stock and ready for shipment from Ace Motor Parts. Engine-driven air compressors like the TF-400 supply compressed air required to operate service brakes, parking brakes, and other pneumatic components on heavy trucks and commercial vehicles.
Air compressors play a central role in heavy-duty braking systems by maintaining pressure in the vehicle’s air reservoirs. Proper compressor operation allows the braking system to build and maintain the air pressure necessary for safe and reliable vehicle operation.
The TF-400 compressor family has long been used in fleet and vocational truck applications where durability and steady airflow are required. These compressors are designed to perform reliably in demanding environments where consistent air delivery is critical to braking performance.
101247X TF-400 Air Compressor Overview
The 101247X compressor follows the Bendix Tu-Flo 400 compressor design. This configuration uses a two-cylinder reciprocating piston layout that compresses air through a single-stage pumping process. The TF-400 series is rated to deliver approximately 7.25 cubic feet of air per minute at 1250 RPM, providing sufficient airflow for heavy-duty brake systems and auxiliary air-powered components.
Depending on the specific vehicle installation, TF-400 compressors may be configured with different mounting arrangements and cooling methods. These compressors are commonly installed on medium- and heavy-duty trucks, buses, and other commercial equipment that use engine-driven air brake compressors.
Key Features
- Replacement for Bendix TF-400 style air compressors
- Heavy-duty two-cylinder reciprocating piston design
- Engine-driven compressor for commercial air brake systems
- Provides compressed air for braking and pneumatic accessories
- Built for dependable operation in demanding fleet environments
Technical Specifications
| Model | TF-400 |
| Part Number | 101247X |
| Cross Reference | 283505, 283505TP |
| Compressor Type | Reciprocating piston |
| Cylinders | 2 |
| Rated Air Output | Approx. 7.25 CFM @ 1250 RPM |
| Drive Type | Engine driven |
| Weight | 34 lbs |
| Typical Application | Commercial trucks and vehicles equipped with air brake systems |
Cross Reference
The 101247X TF-400 air compressor is also commonly referenced under the following part numbers:
- 283505
- 283505TP
Always confirm compressor mounting configuration, port orientation, and cooling type before ordering.
Common Applications
- Heavy-duty commercial trucks
- Highway tractors and semi trucks
- Transit buses and commercial coaches
- Construction and vocational vehicles
- Fleet vehicles equipped with engine-driven air brake compressors
Role of the Air Compressor in the Brake System
The air compressor serves as the primary source of compressed air for a commercial vehicle’s braking system. It pumps air into storage reservoirs so the vehicle can maintain the pressure needed to operate service brakes, parking brakes, and emergency brake systems.
If the compressor becomes worn or damaged, the system may take longer to build air pressure or fail to maintain proper operating levels. Replacing a worn compressor restores normal air system performance and supports reliable brake operation.
Ace Motor Parts Installation Tip
When replacing an air compressor, technicians often inspect related air system components such as the air governor, discharge line, and air dryer cartridge. Servicing these components at the same time can help improve overall system reliability and prevent contamination from entering the air brake system.
Browse our full selection of air brake compressors or view our inventory of surplus air brake compressors for heavy duty trucks.
