Superior Mfg, Inc

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The patent-pending Koester fifth wheel plate allows you to pull a frame or frameless trailer without any modifications after your first initial. Superior is the first trailer to offer this unique feature.

No more bent or broken cross members. No worry with washboard-ing. Superior's innovative design of straight sides and curved bottom forces the material into the center of the trailer, making loading, hauling, and unloading all easier. Our exposed cylinder has a tremendous advantage that eliminates areas of the load to either stick or freeze. It's the best trailer specially designed for heavy demolition, rip-rap, and other heavy hauling needs.