M-3 & Associates are known for our ramp door springs. These springs are designed to last and withstand the weight of repeatedly opening and closing your access door. Our springs are available in a variety of lengths and designs to fit any specific dimension or fitting need.

We carry steel floor storage cabinets, a great way to provide additional space for gear in cargo trailers and RVs. Click for more information concerning our in floor storage boxes.

We stock the new low profile LED, exterior, cargo trailer lights. The LED lights are only 2″ thick, allowing them to be almost completely within the wall of the trailer. Only a thin bezel frames the light on the inside of the trailer. They have tilt capability to put the light where you need it.

The LED light emits 4500 lumens, equivalent the 500 Watt Halogen lights previously used. The aluminum, powder coated, flush mount box gives the trailer a sleek, professional look. The low current draw of only 0.45 amps at 110VAC per light, leaves plenty of generator power for your other accessories.  The LED, exterior, cargo trailer lights are available in both 110 VAC and 12 VDC models. The 12 VDC models can be run directly from the tow vehicle for hours, no generator required.  To learn more please click here for our data sheet.

The lights and other products can be found on our eBay site.

We also carry aluminum cam and bar locks fittings for a wide variety of applications.

Aluminum hinges are also in stock, perfect for any number of uses. Our hinges are fitted with a grease zerk, as well, making it easy to lubricate and maintain for many years of use.

Finally, if you are tired of your trailer being broken into and want some extra security, talk to us about our patented SecurityPlus Trailer Door Locking System.

For more information on any of our cargo trailer parts and equipment, or for assistance with custom needs, contact M-3 & Associates at 574-294-3988 or send us an email at sales@m3assoc.com.

Ramp Door Springs

Floor Storage

Bar and Cam Locks

Trailer Exterior Lighting

SecurityPlus Trailer Door Locking System

Misc.