3/4-16 LH Tube End - 1-3/8in x .120in

The 3/4-16 LH Tube End - 1-3/8in x .120in from MEZIERE is a precision-engineered hydraulic fitting component designed for custom cooling and fuel system applications in high-performance and racing environments. This left-hand thread tube end serves as a critical connection point in closed-loop fluid delivery systems where vibration resistance and leak-free sealing are essential.

The 3/4-16 LH configuration delivers a robust left-hand 3/4-inch-16 thread pitch that prevents accidental loosening under extreme vibration—a critical safety feature in performance vehicles subjected to sustained high RPM operation. The tube end measures 1-3/8 inches in outer diameter with a .120-inch wall thickness, engineered to withstand hydraulic pressures and thermal cycling without deformation or micro-cracking.

This tube end is ideal for builders and technicians fabricating custom radiator, transmission cooler, and fuel line assemblies where standard right-hand fittings create interference or routing conflicts. Left-hand threads are selected specifically to prevent cross-threading, ensuring a secure and reliable connection in demanding applications.