10-32 LH Tube End - 3/8in x .058in

The 10-32 LH Tube End - 3/8in x .058in from MEZIERE is a precision weld-on threaded fitting engineered for custom cooling system fabrication and high-performance engine builds. This left-hand female thread tube end serves as a critical connector point in radiator hose routing, allowing technicians and engine builders to create custom flow paths and adapt aftermarket cooling systems to specific engine configurations. Its compact design and chromoly construction make it ideal for tight engine bays where space-efficient routing is essential.

Manufactured from chromoly steel in a natural finish, this tube end features a 10-32 left-hand thread pattern that allows secure connection without rotation reversal during assembly. The fitting accommodates 3/8-inch diameter tubing with a 0.058-inch wall thickness, a standard specification for many performance cooling applications. The weld-on design provides a permanent, leak-free joint when properly TIG or MIG welded, ensuring reliability under sustained pressure and thermal cycling common in racing and modified engine environments. Left-hand threading prevents accidental loosening in applications where vibration or fluid flow might otherwise back out a standard right-hand thread.

This component is essential for builders constructing custom intake or coolant tube manifolds, adapting universal cooling kits to vintage platforms, or fabricating bespoke water systems for engine swaps. Precision fit and chromoly durability ensure long service life even in high-heat or high-vibration applications. Installation requires welding equipment and welding expertise; the tube end must be properly aligned and secured before cooling system pressurization to prevent leaks and system failure.