M30x3.5 Thread-On Gearshift Adapter with LED Mount for Eaton Fuller 9/10 Speed
Upgrade your shifter setup with this M30x3.5 Thread-On Gearshift Adapter featuring an integrated LED mount. Designed for Eaton Fuller 9 and 10-speed transmissions, this adapter allows you to install compatible thread-on shift knobs while adding the option for a 1″ LED accent light.
Add LED Accent Lighting to Your Shifter
This adapter is designed with a built-in mounting location for a 1″ diameter shifter LED, allowing you to add custom illumination directly to your gearshift.
This creates a unique interior upgrade ideal for:
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Show trucks
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Custom interiors
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Nighttime cab lighting accents
Note: LED light is sold separately.
Designed for Eaton Fuller 9/10 Speed Shifters
This adapter is engineered specifically for Eaton Fuller:
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9-speed transmissions
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10-speed transmissions
It provides a secure connection between the shifter and compatible thread-on knobs.
Compatible with M30x3.5 Thread-On Knobs
The adapter features precision CNC-machined M30x3.5 threads, making it compatible with:
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United Pacific (UP) thread-on gearshift knobs
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Other M30x3.5 threaded shifter knobs
This allows for a wide range of customization options.
Durable Zinc Die-Cast Construction
High-Strength Adapter Design
Constructed from quality zinc die-cast material, the adapter provides strength and durability for daily use.
Precision Machining
CNC-machined threads ensure:
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Secure fitment
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Smooth installation
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Long-term reliability
Premium Candy Color Finishes
Finished with automotive-grade paint, this adapter is available in vibrant candy color options.
Benefits include:
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High-gloss finish
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Eye-catching color options
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Matching interior styling potential
Matching Interior Accessories Available
Complete your custom interior setup with matching accessories, including:
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Gearshift knobs
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Shifter shaft extensions
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Steering wheel spinners
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Air valve knobs
These components allow for a coordinated and professional look.
Easy Installation
Installation is simple and requires minimal tools.
Typical installation steps:
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Install the adapter onto the shifter
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Thread the compatible gearshift knob onto the adapter
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Install optional 1″ LED into the mount
No major modifications are required.
Fitment & Compatibility
Fits:
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Eaton Fuller 9-speed shifters
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Eaton Fuller 10-speed shifters
Compatible with:
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M30x3.5 thread-on gearshift knobs
LED compatibility:
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Designed for 1″ diameter shifter LED modules
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Compatible LED part numbers:
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#36897
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#36898
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#36905–36908
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What’s Included
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1 × M30x3.5 Thread-On Gearshift Adapter with LED Mount
Note:
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LED light not included
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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 9-speed and 10-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 fit 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.

























