Air brake fittings play a crucial role in heavy-duty vehicle air brake systems, which are commonly used in buses, trucks, and trailers. These fittings connect various components of the system, ensuring the safe operation of these vehicles by delivering pressurized air to the brakes.

Different types of air brake fittings are available, each designed for specific applications and angles, including straight, elbow, tee, and cross fittings. These fittings are known for their reliability, capable of withstanding high pressure and wear due to their construction from strong materials like brass or steel. This durability is essential in heavy-duty vehicle applications where safety and performance are paramount.