Jetuplusllc Chrome Mounting Adapter for Eaton-Fuller 13/15/18 & Super 10 — 1/2-13 Thread, No-Weld Install

This compact chrome mounting adapter from Jetuplusllc converts common 1/2-13 threaded shift knobs into Eaton-Fuller style shifters used on 13, 15, 18 and Super 10 speed transmissions. Built with a durable chrome finish and a secure thread-on design, the adapter provides a clean, factory-like transition between a threaded knob and the Eaton-Fuller shifter shaft. The package includes the inner mounting base and two set screws; the polished chrome ball or threaded knob is not included.

How does this adapter attach to Eaton-Fuller 13/15/18 shifters?

The adapter uses a thread-on method that matches 1/2-13 threaded knobs and secures to Eaton-Fuller shifter shafts through the supplied inner mounting base. Two set screws lock the adapter in place for a stable fit while driving. Installation is straightforward with common hand tools and does not require welding or permanent modification.

• Thread size: 1/2-13 to match most aftermarket knobs
• Includes inner mounting base and two set screws for secure attachment
• No-weld installation using screwdriver or Allen wrench
• Fits Eaton-Fuller 13, 15, 18 and Super 10 speed transmissions

Will the chrome finish hold up to everyday use?

The adapter is chrome-plated for corrosion resistance and a refined appearance that complements polished knobs and interior trim. While chrome resists rust and cleans easily, routine care (wiping off road grime and avoiding harsh abrasives) preserves the finish longer. The plated surface also reduces friction where the knob threads on, making installations smooth.

• Durable chrome plating for rust resistance and aesthetics
• Smooth thread engagement reduces wear on knobs
• Wipe clean with mild soap and soft cloth for best results

Which knobs and transmissions are compatible with this adapter?

This adapter is made to accept any shift knob or extension with a 1/2-13 male thread, converting it to fit Eaton-Fuller style shifter shafts used on several heavy-duty transmissions. It is compatible with many aftermarket knobs and universal chrome balls sold separately. Confirm your knob’s thread size before purchasing to ensure compatibility.

• Compatible thread: female 1/2-13 inside the adapter
• Designed for Eaton-Fuller 13, 15, 18 and Super 10 speed shifters
• Does not include the chrome ball or threaded knob (sold separately)

Who is this for: This adapter is aimed at truck drivers, fleet mechanics, and DIY enthusiasts who want to upgrade, replace, or personalize the shift knob on Eaton-Fuller transmissions without altering the shifter shaft. It’s particularly useful for those who already own a 1/2-13 threaded knob and need a reliable, chrome-finished interface to Eaton-Fuller 13/15/18 and Super 10 transmissions. Mechanics will appreciate the no-fuss installation and the included set screws, while drivers benefit from a tidy, durable connection that looks and functions like a factory accessory.

Manufacturer part number: 70589B. Package includes chrome-plated thread-on adapter and inner mounting base with two screws. Knob/ball not included.