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Pro Series Trailer Jacks & Dollies — Heavy-Duty Support Built for Real-World Hauling
Pro Series trailer jacks and dollies are engineered for trailerers who need dependable, load-rated support every time they hitch up, park, or maneuver a trailer. Whether you're stabilizing a loaded cargo trailer at a job site or positioning a boat trailer in a tight driveway, this collection brings together purpose-built equipment designed to handle the demands of regular, heavy use. Pro Series has built a reputation among serious haulers for producing gear that holds up without overcomplicating the job.
What Makes Pro Series Jacks & Dollies Worth Relying On
- Confident tongue weight management — zinc plated steel construction resists corrosion even when equipment is stored outdoors between seasons or jobs.
- Easier solo maneuvering in tight spaces — swivel jack designs let one person reposition a trailer without a tow vehicle, ideal for crowded storage lots or narrow garage setups.
- Smooth rolling on rough surfaces — poly wheels handle gravel driveways, packed dirt, and uneven pavement without digging in or binding up the way smaller casters can.
- For boaters and campers who park frequently — a quality swivel jack makes hitching and unhitching a consistent, repeatable process rather than a guessing game.
- Reduced wear on your trailer coupler — proper tongue support keeps the trailer level during storage, protecting both the coupler and the hitch ball from stress loading over time.
Choosing the Right Jack for Your Trailer's Load and Setup
The most important number to match is the jack's rated capacity to your trailer's loaded tongue weight — never the trailer's gross weight. A good rule of thumb is to choose a jack rated at least 10–15% above your typical tongue weight to give yourself a reliable working margin.
Wheel size and type matter just as much as capacity. Poly wheels perform well across mixed terrain and resist flat-spotting during long storage periods, making them a practical choice for trailers that sit between seasons. If your trailer sees frequent movement in and out of a garage or storage facility, a swivel-style jack with a 6" poly wheel offers the combination of reach, stability, and easy repositioning that fixed-mount jacks simply can't match.
Consider your mounting surface, too. Side-wind and top-wind jacks suit different hitch heights and frame configurations, so measure your trailer's A-frame or tongue tube before ordering to make sure the mount style fits your setup cleanly.
Frequently Asked Questions about Pro Series
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Trailer jacks and dollies are mechanical support and maneuvering tools used to lift, stabilize, and move trailers when they are disconnected from a tow vehicle. Jacks hold the trailer at a level height to protect the coupler and cargo, while dollies allow you to reposition a trailer by hand in tight spaces.
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Swivel trailer jacks are designed for trailer owners who need a jack that can fold or rotate out of the way when not in use. They are especially practical for boat trailers, utility trailers, and cargo trailers where ground clearance matters during towing and easy deployment is needed during hookup.
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Start by positioning the trailer jack on the tongue tube or A-frame rail at a point that keeps the trailer level when uncoupled. Secure the jack using the appropriate bolts through the mounting bracket, tighten all hardware to the torque specification listed in the jack's manual, and test the crank operation before loading the trailer.
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Attach the trailer dolly to the trailer coupler or tongue, then use the handle to push, pull, or steer the trailer into position. Trailer dollies work best on flat, hard surfaces like driveways or garage floors, and you should always engage the trailer's wheel chocks before detaching the dolly.
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The right trailer jack weight capacity depends on the gross tongue weight of your specific trailer, which is typically around 10 to 15 percent of the loaded trailer's total weight. Always choose a jack rated at or above your trailer's maximum tongue weight to ensure safe and stable support when the trailer is parked.
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A swivel jack rotates or folds up along the trailer tongue when not in use, reducing the risk of ground contact while towing, whereas a straight-mount jack stays fixed in a vertical position and must be manually removed or cranked fully up before travel. Swivel jacks are generally preferred for trailers that are frequently hitched and unhitched.
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Yes, a zinc-plated trailer jack offers meaningful corrosion resistance that makes it better suited for outdoor storage and occasional wet conditions than an uncoated steel jack. Zinc plating creates a protective barrier against rust, though for extended marine or coastal environments, additional protective measures like grease on moving parts are recommended.
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Yes, the wheel type on a trailer jack significantly affects stability and ease of use depending on the surface. Poly wheels perform well on hard, flat surfaces like concrete and asphalt, while larger pneumatic or foam-filled wheels are better suited for soft ground, gravel, or uneven terrain where a smaller wheel would sink or drag.
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Because a wheeled trailer jack allows you to easily crank the trailer tongue up and roll the trailer forward or backward by hand without fully detaching it, making solo hookups much more manageable. A foot pad jack is simpler and lower cost but requires more effort to reposition the trailer once it is uncoupled and parked.
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Clean the trailer jack regularly to remove dirt, road grime, and moisture, and apply grease or a dry lubricant to the screw mechanism and any pivot points on swivel models. Inspect the mounting hardware for looseness or corrosion before each use, and store the jack in the raised or folded position to protect the wheel and threads during transport.