Jetuplusllc Chrome Mounting Adapter for Eaton-Fuller 13/15/18 & Super 10 — 1/2"-13 Thread, Chrome-Plated, Two-Screw Mount

Chrome-threaded adapter that converts 1/2"-13 thread shift knobs to fit Eaton-Fuller 13/15/18 and Super 10 style shifters quickly and securely.

This compact, chrome-plated mounting adapter provides a clean, durable connection between common 1/2"-13 threaded knobs and Eaton-Fuller style shifter shafts used on 13, 15, 18-speed and Super 10 transmissions. Built with a thread-on design and an inner mounting base secured by two set screws, the adapter streamlines installation while maintaining a factory-style look. It’s ideal when you want to swap knobs without modifying the shifter or buying a different thread type.

How does this adapter attach to Eaton-Fuller shifters?

The adapter uses a thread-on interface for the knob and an internal base that clamps to the Eaton-Fuller style shaft. Two screws in the inner mounting base compress the adapter around the shifter stub, giving a firm, rattle-free fit.

• Fits Eaton-Fuller 13/15/18-speed and Super 10 shifters
• Accepts standard 1/2"-13 threaded shift knobs
• Inner mounting base secured with two screws for stable attachment
• Threaded installation — no welding or permanent modification

What materials and finish does the adapter use?

The adapter is chrome-plated for corrosion resistance and a polished appearance that matches many aftermarket knobs. The chrome surface resists daily wear and cleans easily, keeping the cab looking sharp.

• Durable chrome plating for wear and rust resistance
• Solid metal construction for long-term strength
• Smooth, reflective finish that coordinates with chrome knobs and trim

Will this work with my existing shift knob or do I need to buy a new one?

It works with any knob that uses a 1/2"-13 female thread; check the knob’s thread spec before installing. Note that the package does not include the chrome ball universal knob (manufacturer part number 70589B), so you’ll need to supply your own compatible knob if you don’t already have one.

• Compatible with standard 1/2"-13 threaded knobs
• Does not include the chrome ball universal knob (70589B)
• Ideal for upgrading or replacing worn knobs without changing the shifter

How difficult is installation and what tools are needed?

Installation is straightforward and can be completed with basic hand tools. The adapter slides over the shifter shaft and is clamped in place with the two included screws; thread your knob onto the adapter afterward.

• Basic tools: screwdriver or hex driver for the two screws
• No specialized machining or permanent alterations required
• Typical install time: 10–20 minutes depending on access

Who is this for: Drivers, fleet technicians, and custom truck builders who want a reliable, reversible way to use 1/2"-13 threaded shift knobs on Eaton-Fuller 13, 15, 18-speed and Super 10 transmissions. It’s especially useful for those replacing a worn adapter or customizing a cab with aftermarket knobs while keeping installation simple and serviceable.