3/4-16 LH Tube End 1-1/2in x .095

The 3/4-16 LH Tube End 1-1/2in x .095 from MEZIERE is a precision weld-on threaded tube fitting engineered for custom cooling system fabrication and high-performance engine builds. This left-hand female threaded component is designed for builders and technicians who demand tight tolerances and reliable flow connections in applications ranging from custom radiator hose assemblies to intake manifold water passages. The left-hand threading ensures secure, vibration-resistant installation in directionally sensitive plumbing configurations where standard right-hand threads would loosen under thermal cycling and engine vibration.

Manufactured from chromoly steel and finished in natural (uncoated) condition, this tube end accepts a 1-1/2-inch outer diameter tube with 0.095-inch wall thickness, a specification common in race-series radiators and custom cooling loops. The 3/4-16 LH female thread pattern allows for direct bolting or hose coupling without adapter fittings, reducing pressure drop and minimizing leak points. Chromoly construction provides superior strength-to-weight characteristics compared to mild steel, making it ideal for engine compartments subject to extreme temperatures and mechanical stress. The weld-on design delivers a permanent, full-penetration joint that eliminates threading errors and guarantees concentricity with the tube bore.

Professional engine builders, fabrication shops, and serious enthusiasts benefit most from this MEZIERE component when assembling custom cooling systems for modified small-block and big-block applications. Installation requires TIG or MIG welding directly to tube stock; proper heat input and cooling procedures are essential to maintain chromoly properties and prevent warping. The natural finish requires protective coating or painting post-installation to prevent rust in long-term storage or humid environments. Verify tube wall thickness and outer diameter match before ordering to ensure proper fit and function in your system.