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 or flush mounted wheel chocks or go to parts-unlimited.com to locate your nearest dealer.

We stock a great selection of recessed aluminum halogen and LED lighting mounting and bracing equipment, including full halogen work lights to add simple and effective lighting wherever you need. These pre-assembled fixtures are simple to use and designed for easy installation or available as a plug-in option for portable use.

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