TECTRAN Air Brake Air Line Fitting Part No: QL1363666

The TECTRAN QL1363666 Air Brake Air Line Fitting is engineered to provide reliable air line routing and secure pneumatic connections in heavy-duty truck and trailer air brake systems. Designed as a DOT Y union fitting, this component helps maintain smooth airflow and stable air pressure while supporting efficient air distribution throughout commercial vehicle brake systems. Its durable construction is built to handle demanding highway and fleet operating conditions.

Featuring dual 3/8-inch tube outside diameter connections, the QL1363666 fitting provides accurate compatibility for many truck air brake applications. The Y union design supports flexible air line routing while helping reduce stress on tubing connections and minimizing the risk of leaks. The fitting also includes mounting hole dimensions with a 4.2 mm inner diameter and 8 mm outer diameter for secure installation and dependable support during operation.

Compatible with Freightliner, Kenworth, Peterbilt, International, Volvo, Mack, Western Star, Sterling, Hino, and Isuzu trucks, this TECTRAN air brake fitting is ideal for diesel repair shops, fleet maintenance programs, and owner-operators. Wofford Truck Parts supplies dependable aftermarket truck air system components designed for durability and long service life. Popular high traffic keywords for this product include DOT Y union fitting, air brake Y connector, truck air line fitting, heavy duty pneumatic fitting, 3/8 air brake fitting, commercial truck air system parts, air brake union connector, and trailer air line fittings.