Dutton-Lainson Tongue Jacks

Dutton-Lainson Tongue Jacks: Built to Work Where It's Toughest

Dutton-Lainson has been engineering precision hardware since 1886, and their reputation for durability comes through clearly in their line of tongue jacks. Designed primarily for marine and trailer applications, these jacks reflect more than a century of manufacturing expertise — combining corrosion-resistant finishes, thoughtful ergonomics, and heavy-gauge steel construction that holds up under real-world conditions.

The DLx Series: A Cut Above Standard Jacks

The flagship of Dutton-Lainson's tongue jack lineup is the DLx Series, a family of swivel-mount marine jacks available in 1,500 lb, 1,700 lb, and 2,000 lb capacities. The DLx jack features a charcoal gray textured powder coating over zinc plating and dual grease fittings to keep interior parts fully lubricated — details that matter when a jack is repeatedly exposed to road grime, saltwater spray, and the elements. The swivel design allows the jack to pivot up for towing or down for stowing, locking securely in place in either position.

Within the DLx family, specific variants like the DLx-SW add even more refinements. A vinyl sleeve on the swivel pin makes pivoting more comfortable, a bushing between the tubes prevents scratching and tightens the fit, and a unique swivel bracket cover protects internal components while allowing the pin to rotate 90 degrees into a recessed storage position.

Corrosion Resistance: The TUFFPLATE Advantage

Across the lineup, Dutton-Lainson applies their signature Zinc TUFFPLATE finish — a corrosion-resistant coating that serves as the foundation for many of their jacks. This finish includes a warranty against operational failure due to rust or corrosion for the covered warranty period. For boaters and trailer owners who regularly launch in salt or brackish water, this kind of protection is not a luxury — it's a necessity.

Smart Wheel Design for Real-World Terrain

One detail that sets Dutton-Lainson tongue jacks apart is the engineering behind their wheels. Heavy-duty polypropylene slotted wheels are designed to resist flat spots and cold weather cracking — a common failure point on cheaper jacks left outdoors through winter. The independent wheel design, where the wheel bracket rotates independently from the inner post, provides extra maneuverability over rough terrain like sand or gravel. This is a particularly valuable feature for boat trailers that frequently navigate sandy boat ramps.

Range and Fit

Dutton-Lainson makes marine-grade jacks in a variety of weight capacities, height lift travel ranges, jack wheel sizes, and with dual-wheel options. From the entry-level Model 6400 at 1,000 lb capacity up through the DLx-SF at 2,000 lbs, there's a Dutton-Lainson jack sized for nearly any trailer tongue weight. All mounts are designed to fit trailer frames up to 3" x 5". The 6800 Series offers a dual-wheel configuration — two 6" wheels for added stability with 12" of travel, accommodating tongues up to 28" from the ground.

Whether you're hitching a bass boat, a utility trailer, or a camper, Dutton-Lainson's tongue jacks deliver the kind of confidence and dependability you'd expect from a manufacturer with over 135 years of American manufacturing heritage. Browse the full selection of tongue jacks or explore the complete Dutton-Lainson brand catalog for winches, couplers, and more.