12" X 3" USDOT Number Magnetic Sign

Our 12" x 3" US DOT magnetic signs are a compact, professional solution for pickup trucks, contractor vehicles, hotshot trucks, cargo vans, and commercial vehicles with limited door space. Featuring bold, easy to read 2" tall lettering, this compact format is designed to provide clean, highly visible commercial vehicle identification.

Simply enter your US DOT number, choose your preferred color combination, select your quantity, and add to cart. We print exactly what you enter in the preview at the specified size shown.

Choose Your Colors

After entering your USDOT number, simply choose your text color, background color, quantity, and add your signs to cart. Upgrade to reflective lettering for improved visibility during nighttime driving and low light conditions.

The 12" x 3" size is especially popular for pickup trucks, contractor vehicles, landscaping trucks, cargo vans, electricians, plumbers, and commercial vehicles where space is extremely limited.

Important Magnet Information

Magnetic signs only stick to flat steel surfaces. They will not adhere to aluminum, fiberglass, plastic, carbon fiber, heavily curved panels, or surfaces containing body filler. Please measure your available flat door space before ordering and test with a household magnet if unsure.

For best performance and longevity, remove and clean your magnetic sign regularly. Clean both the vehicle surface and the back of the magnet after rain, road salt, dirt, or car washes to help protect your finish and extend magnet life.

Frequently Asked Questions

Is the 12" x 3" size DOT compliant?

The 12" x 3" format uses 2" tall lettering and is designed for basic USDOT visibility requirements. Compliance can vary depending on vehicle type, operating authority, and state regulations, so always verify your specific requirements.

What vehicles are 12" x 3" DOT magnets best for?

This size is ideal for pickup trucks, contractor vehicles, hotshot rigs, cargo vans, landscaping trucks, plumbing vehicles, electrical service trucks, and smaller commercial vehicles with limited flat door space.

Will this magnetic sign stick to aluminum truck doors?

No. Magnetic signs only stick to flat steel surfaces. They will not work on aluminum, fiberglass, plastic, carbon fiber, or heavily curved body panels.

Can I order reflective lettering?

Yes. Reflective lettering is available as an upgrade and improves visibility during nighttime driving, roadside work, and low light conditions.

Can I remove and reuse this magnetic sign?

Yes. These magnetic signs are removable and reusable when properly maintained and stored flat between uses.

Can I customize the wording?

This version is designed specifically for displaying a USDOT number. If you would like to add a company name, logo, city, or custom layout, shop our custom magnetic signs collection using the button above.

How do I care for my magnetic vehicle sign?

Remove and clean your magnetic sign regularly. Clean both the vehicle surface and the back of the magnet after rain, dirt, road salt, or car washes to maintain performance and protect your vehicle finish.

Questions?

Need help placing an order or have a custom color request? Call us at 812-936-7446 or email us at info@wholesalemagneticsigns.com.