Mytee 5th Wheel Kingpin – 0.38″ Weld-On | USA Made

Built for durability and performance, this **Mytee 5th Wheel Kingpin** is a premium weld-on solution designed for standard 5th wheel trailers. Crafted from **high-strength 8630 Alloy Steel** (also available in 4320H Steel), it delivers an **ultimate tensile strength of ~150,000 PSI** and a **yield strength of 115,000 PSI**, ensuring long-lasting reliability under heavy loads. Every kingpin undergoes **100% Brinell hardness testing** and **magnetic particle inspection** to guarantee structural integrity and weldability.

Known in the industry as a **mushroom-style kingpin**, this component is engineered for **on-road 5th wheel trailers**—not off-road applications. Note that galvanizing alters the dimensions and performance of the pin, so this product is supplied in its raw steel state for optimal fit and strength. Made in the USA, it meets rigorous quality standards for professional trailer builders and DIY enthusiasts alike.