Fortpro is a trusted leader in the development and manufacturing of premium-quality truck parts designed to meet the demands of semi-trucks and heavy-duty trucks. Renowned for innovation, durability, and reliability, Fortpro products are engineered to enhance performance, safety, and efficiency across a wide range of trucking applications.
Whether you're seeking OEM replacement parts or upgrades, Fortpro provides a diverse selection of components backed by a global reputation for quality and innovation. Trust Fortpro for the parts you need to keep your vehicles on the road longer and stronger.
Basic Part Information6 attributes
| Product Line | Brakes |
|---|---|
| Category Name | Air Brake Valves |
| Part Type | Inversion Valve |
| Alternate Part Name | Brake Inversion Valve, Air Inversion Control Valve, Inversion Control Valve, Air Brake Inversion Valve |
| Model | TR-3 |
| OEM Part Number | 281459 |
Application/Fitment Attributes6 attributes
| Application Type | Heavy Duty Trucks, Semi-Trucks |
|---|---|
| Control Port Size | 1/8-27 NPT |
| Delivery Port Size | 1/4-18 NPT |
| Exhaust Port Size | Dust Shield |
| Mounting Type | Ø .280 in. x 2 |
| Supply Port Size | 1/4-18 NPT |
Dimensional/Physical Attributes1 attribute
| Material | Die-cast Zinc |
|---|
Technical/Performance Attributes5 attributes
| Exhaust Opening Ascending Pressure(CON / SUP) | 40 psi |
|---|---|
| Inlet Opening Descending Pressure (CON / SUP) | 25 psi |
| Inlet Opening Pressure (Const. SUP / Var. CON) | 8 psi |
| Maximum Operating Temperature | 200 deg. F (93 deg. C) |
| Minimum Operating Temperature | -40 deg. F (-40 deg. C) |
Packaging / Logistics Attributes:1 attribute
| Net Weight | 0.64 lb. |
|---|
Intended Application
- Used on trucks, buses and trailers that require safe control of spring brakes in the event of a pressure failure in the system.
- Allows the spring brakes to remain disengaged when there is sufficient air pressure in the system. If the system pressure falls below a critical threshold, the valve reverses its operation and automatically activates the parking brakes.
- Automann: 170281459
- Bendix: 281459, 281459N, 281459X
- Bepco Inc: 281459
- International-Navistar: 1617036C91
- Mack: 20QE2123R
- Tectran: TV281459
