Used Load King Lowboy Trailers For Sale

Used Load King lowboy trailers are built for hauling tall, heavy equipment while keeping deck height low enough for legal transport in more situations. In this category, buyers will typically see removable gooseneck lowboys, also called RGN trailers, along with fixed-neck or beavertail configurations. Load King is well known in heavy-haul applications for stout steel construction, practical deck layouts, and capacity ratings that fit contractors, equipment dealers, paving crews, and bridge or utility work. Common ratings in this class range from around 35 tons up into 55 ton and heavier setups, so payload requirement should be the first filter before comparing deck features.

On used units, deck geometry matters as much as the ton rating. Buyers should pay close attention to overall length, well length, loaded deck height, and axle spacing because those specs determine what machines actually fit and how the load balances across the trailer. A 24-inch loaded deck height, a 25-foot well, outriggers, D-rings, boom troughs, bucket wells, and load-bearing fenders can make a major difference when hauling excavators, dozers, pavers, or cranes with wider tracks or attachments. If the trailer is an RGN, inspect the hydraulic neck operation, pony motor, front ramps, ride height adjustment, and neck connections. If it is a beavertail lowboy, verify ramp style, tail condition, and how easily the deck handles repeated equipment loading.

Running gear and suspension details deserve a close look on any used Load King lowboy. Tri-axle trailers, tandem setups, rear lift axles, air ride suspension, manual dump valves, and mechanical ride height controls all affect maneuverability, tire wear, and how the trailer performs under uneven loads. Tire size, wheel type, brake percentage, axle condition, bushing wear, and frame integrity around the suspension hangers should be reviewed carefully. Kingpin setting, fifth-wheel height compatibility, and overall deck height are especially important if the trailer will be paired with an existing tractor. Buyers moving oversize freight should also check for fourth-axle provisions, air and electric hookups, flag holders, lighting, and permit-friendly dimensions.

Load King lowboys tend to appeal to buyers who need a work trailer rather than a lightweight specialty build. That makes condition and prior use more important than model year alone. Look for wear in the neck, concentrated stress around the transition areas, floor condition, side rails, scuff areas, and any repaired sections near the rear bogie or ramp mounts. A well-maintained used Load King lowboy can be a strong value if the structure is straight, the hydraulics are sound, and the configuration matches the equipment being hauled every week. The right trailer is the one with the correct capacity, deck layout, and axle setup for your freight, permit lanes, and loading method.