M30x3.5 Thread-On Gearshift Adapter with LED Mount for Eaton Fuller 13/15/18 Speed

Upgrade your shifter with this M30x3.5 Thread-On Gearshift Adapter featuring an integrated LED mount. Designed for Eaton Fuller 13, 15, and 18-speed transmissions, this adapter allows you to install compatible thread-on gearshift knobs while adding a custom 1″ LED accent light.

Add LED Accent Lighting to Your Shifter

This adapter includes a built-in mount for a 1″ diameter shifter LED, allowing you to add custom lighting directly to your gearshift setup.

Perfect for:

• Show trucks

• Custom interiors

• Nighttime cab lighting upgrades

Note: LED module is sold separately.

Designed for Eaton Fuller 13/15/18 Speed Shifters

Engineered specifically for Eaton Fuller heavy-duty transmissions:

• 13-speed shifters

• 15-speed shifters

• 18-speed shifters

The adapter provides a secure and reliable connection while maintaining proper shifting function.

Compatible with M30x3.5 Thread-On Knobs

This adapter features precision CNC-machined M30x3.5 threads, making it compatible with:

• United Pacific (UP) thread-on gearshift knobs

• Other M30x3.5 threaded shift knobs

This allows full customization of your shifter setup.

Durable Zinc Die-Cast Construction

High-Strength Design

Constructed from quality zinc die-cast material, the adapter is built for durability and long-term use.

Precision Machining

CNC-machined threads ensure:

• Secure fitment

• Smooth installation

• Reliable performance

Premium Candy Color Finishes

Finished with automotive-grade paint, this adapter is available in a variety of vibrant candy colors.

Benefits include:

• High-gloss finish

• Bold custom appearance

• Ability to match interior accessories

Matching Interior Accessories Available

Create a fully coordinated interior with matching accessories such as:

• Gearshift knobs

• Shifter shaft extensions

• Steering wheel spinners

• Air valve knobs

Easy Installation

Installation is quick and straightforward.

Typical installation steps:

1. Install adapter onto the shifter

2. Thread the gearshift knob onto the adapter

3. Install optional 1″ LED into the mount

No modifications required.

Fitment & Compatibility

Fits:

• Eaton Fuller 13-speed shifters

• Eaton Fuller 15-speed shifters

• Eaton Fuller 18-speed shifters

Compatible with:

• M30x3.5 thread-on gearshift knobs

LED compatibility:

• Designed for 1″ diameter shifter LED modules

• Compatible LED part numbers:

  • #36897

  • #36898

  • #36905–36908

What’s Included

• 1 × M30x3.5 Thread-On Gearshift Adapter with LED Mount

Note:

• LED module not included

• Choose preferred candy color finish when ordering

Warranty Coverage

Backed by a 6-Month Limited Warranty.

Frequently Asked Questions About Gearshift Adapters

What transmissions does this adapter fit?

It fits Eaton Fuller 13, 15, and 18-speed shifters.

What thread size does this adapter use?

It uses M30x3.5 threads for compatibility with thread-on gearshift knobs.

Can I install an LED in this adapter?

Yes. It is designed to accept a 1″ diameter shifter LED (sold separately).

Are the threads machined?

Yes. The threads are CNC machined for precise fitment.

What finishes are available?

The adapter is available in various candy color automotive paint finishes.

What warranty is included?

This product includes a 6-month limited warranty.