KW3405/1N
Air Connector Test
Bendix

This diagnostic air testing connector provides a convenient interface for air system diagnostics and leak testing in commercial braking and pneumatic systems. The threaded connection is 1/4-18 NPT, a common standard in shop and fleet service, while the end diameter of 6.35 mm matches typical tubing and small-bore fittings used in diagnostic probes. The connector is designed for rapid setup during pressure tests, enabling technicians to attach test equipment securely without introducing flow restrictions or leaks. VMRS 053-008-004 codes the component within the air system maintenance framework, and cross-references to BW KW3405/1 helps manage compatibility across test-and-service tooling. Category context places this item squarely in the air and pneumatic subsystem, where it supports routine leak checks, pressure verification, and system diagnostics on heavy-duty vehicles, trailers, and equipment fleets.