Trail King Lowboy Trailers For Sale

Trail King lowboy trailers are built for hauling tall, heavy equipment that needs a low deck height and stable load platform. In this category, buyers will usually see hydraulic detachable gooseneck designs, often called RGN or removable gooseneck lowboys, in common capacities from 35 ton up to 55 ton and beyond. Typical configurations include tandem or tri-axle setups, 102-inch legal width, deck lengths around 25 to 29 feet in the well, and loaded deck heights in the 20 to 22 inch range. That combination makes a Trail King lowboy a strong fit for excavators, dozers, loaders, paving machines, and other iron that would sit too high on a standard flatbed.

Capacity rating is only the starting point. A serious buyer should compare the rating in the loaded position, the concentrated load capacity over a given section of deck, axle group layout, and whether the trailer is set up for a flip axle or fourth axle connection. Many Trail King lowboys are equipped with air ride suspension, adjustable ride height, swing-out outriggers, D-rings, boom wells, and bucket pockets or bucket wells. Those features matter in day-to-day use because they affect how easily you can load wide-track machines, secure attachments, and stay within bridge and axle limits. Hydraulic necks with pony motor or PTO hookups can also make a difference if the trailer will be used behind multiple tractors.

Deck construction and wear points deserve close attention on used Trail King lowboys. Wood or Apitong decking is common, and steel perimeter beam construction is typical on heavy-haul models. Buyers should inspect crossmember spacing, deck support in high-stress areas, kingpin setting, neck and fifth-wheel contact surfaces, suspension condition, brake percentage, and tire size compatibility across the axle group. On equipment trailers that have spent years loading tracked machines, it is also smart to check ramp assemblies, rear deck structure, wheel areas, scuff points around the outriggers, and any evidence of frame repairs or concentrated load damage.

Trail King has a strong reputation in the lowboy market because these trailers are usually spec'd for real construction, aggregate, and contractor service instead of light occasional use. The right trailer depends on the machines being hauled, route restrictions, and whether detach speed or maximum versatility matters more. A 35 ton tandem-axle hydraulic detach can be a practical fit for mixed fleet work, while a 55 ton tri-axle with lift axle provisions, boom trough, and adjustable ride height is better suited for larger excavators and more demanding heavy equipment moves. When comparing listings, focus on capacity, well length, neck style, axle setup, and added heavy-haul features before paint or model year.