Running Boards

The Lang Tools Hose Assembly Replacement Part (74447) serves as a crucial component for professionals using Lang Tools automotive diagnostic equipment, specifically the TU-443 Deluxe Global Fuel Injection Pressure Test Set. Constructed with a durable black finish, this 4-foot hose provides ample length for technicians to comfortably reach various test ports without strain. It features two key fittings: a 1/8" MNPT (Male National Pipe Taper) threaded connection designed for secure attachment to pressure gauges or testers, and a quick-connect fitting for efficient and rapid connection to vehicle fuel systems. This combination of fittings streamlines the diagnostic process and minimizes the risk of leaks during testing. The hose assembly is a direct replacement component, ensuring perfect fit and function with compatible Lang Tools fuel injection test sets. Its design contributes to enhanced diagnostic accuracy by providing a secure connection for precise fuel pressure readings. While primarily intended for the TU-443, its standard fittings offer versatility and may be suitable for other Lang Tools fuel injection testers and cleaners that utilize a GM Schrader adapter. Proper use involves connecting the MNPT end to the tester and the quick-connect end to the vehicle's fuel test port, following safety precautions and vehicle-specific service manual procedures for fuel system pressure relief and disconnection.