Add a custom touch and improved feel to your shifter with the 1/2-inch-13 threaded gearshift knob that includes an Eaton Fuller-style 13/15/18 shifter adapter for versatile fitment. This replacement knob threads onto standard 1/2-inch-13 shifter studs and, with the included adapter, works seamlessly with Eaton Fuller 13-, 15-, and 18-speed transmissions, making it a convenient choice for a wide range of applications. The upgraded design delivers a comfortable grip, solid connection and smoother operation and is available in black or american flag designs. Easy to install with the threaded fitment and supplied adapter, this gearshift knob lets you personalize your cab while maintaining reliable performance during everyday driving and long hauls. Ideal for drivers seeking both functionality and a refreshed interior look, it's a practical enhancement that blends form and comfort in one complete piece.