TRAILER JACKS &
JACK COMPONENTS
IN PHOENIX, ARIZONA
A trailer jack is one of the hardest-working components on any trailer. Every time you hitch, unhitch, level, load, or service your trailer, the jack safely supports the tongue weight while allowing precise height adjustment. Choosing the correct trailer jack improves safety, makes coupling easier, and helps protect both your trailer and tow vehicle from unnecessary strain.
Deer Valley Trailer stocks one of Arizona's largest selections of trailer jacks and replacement jack components for utility trailers, enclosed cargo trailers, dump trailers, equipment trailers, landscape trailers, boat trailers, car haulers, gooseneck trailers, horse trailers, RV trailers, and commercial trailers. Whether you need a replacement jack, an upgraded capacity, or replacement components, our knowledgeable parts specialists can help you find the right solution for your trailer.
WHAT DOES A TRAILER JACK DO?
A trailer jack supports the tongue weight of the trailer whenever it is disconnected from the tow vehicle. It allows the coupler to be raised or lowered for hitching and unhitching while also making it easier to level the trailer for loading, unloading, maintenance, or storage. Depending on the trailer design, a jack may also help stabilize the trailer during normal use.
Because trailer jacks support significant loads, selecting the proper style and weight capacity is essential for safe and dependable operation.
TYPES OF TRAILER JACKS
Trailer jacks are available in several mounting styles and weight capacities to accommodate different trailer designs. Choosing the correct jack depends on the trailer's tongue weight, frame design, and intended use.
A-FRAME TRAILER JACKS
A-frame trailer jacks are one of the most common styles found on utility trailers, enclosed cargo trailers, dump trailers, and travel trailers. They mount directly through the trailer's A-frame coupler and provide a strong, stable lifting point while requiring minimal installation space.
SIDE-WIND TRAILER JACKS
Side-wind trailer jacks use a side-mounted crank handle, making them popular when additional clearance is needed around propane tanks, toolboxes, battery trays, or trailer bodies. They are commonly found on enclosed trailers, equipment trailers, and many commercial applications.
TOP-WIND TRAILER JACKS
Top-wind jacks feature a crank handle mounted on the top of the jack. Their simple design provides reliable operation and is commonly used on utility trailers, boat trailers, and many light-duty trailer applications.
PIPE-MOUNT TRAILER JACKS
Pipe-mount jacks use a welded pipe bracket that allows the jack to be easily removed or replaced. This design is common on utility trailers, agricultural trailers, and many commercial trailer designs.
SWIVEL TRAILER JACKS
Swivel jacks pivot upward when not in use, providing additional ground clearance during towing. They are commonly used on utility trailers, landscape trailers, boat trailers, and equipment trailers where ground clearance is important.
DROP-LEG TRAILER JACKS
Drop-leg trailer jacks combine a screw jack with a telescoping inner leg, allowing the jack to quickly extend to the ground before fine adjustments are made with the crank. This design significantly reduces cranking effort and is commonly used on heavier trailers such as equipment trailers, gooseneck trailers, dump trailers, and commercial trailers.
HOW TO CHOOSE THE RIGHT TRAILER JACK
Trailer jacks are designed to support the trailer's tongue weight—not the trailer's total loaded weight. Because tongue weight is typically only a percentage of the trailer's total weight, selecting a jack based on tongue weight helps ensure safe operation while avoiding unnecessary oversizing or undersizing.
LIFT HEIGHT
The jack should provide enough travel to easily couple and uncouple the trailer under a variety of towing conditions. Lift height becomes especially important when trailers are towed by vehicles with different hitch heights.
MOUNTING STYLE
A-frame, bolt-on, weld-on, swivel, and pipe-mount jacks each require different mounting methods. Matching the jack to the trailer's frame design ensures proper installation and reliable operation.
REPLACEMENT JACK COMPONENTS WE CARRY
Many trailer jacks can be repaired rather than completely replaced. Deer Valley Trailer stocks a variety of replacement components and accessories to help restore proper operation.
COMMON JACK COMPONENTS
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Replacement Foot Plates
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Sand Feet
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Caster Wheels
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Drop Legs
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Jack Handles
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Gear Components
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Pins
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Mounting Brackets
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Pipe Mount Hardware
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Jack Repair Components
SIGNS YOUR TRAILER JACK MAY NEED REPLACEMENT
Trailer jacks are exposed to dirt, moisture, road debris, and heavy lifting loads. Regular inspection helps identify wear before complete failure occurs.
COMMON WARNING SIGNS
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Bent jack tube
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Difficult cranking
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Excessive play
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Rusted gears
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Jack slipping under load
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Broken crank handle
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Damaged caster wheel
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Worn mounting hardware
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Bent drop leg
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Damaged foot plate
TRAILER JACK MAINTENANCE
Regular maintenance helps extend the life of your trailer jack and ensures dependable operation. Keeping the jack clean, lubricating moving components where applicable, inspecting mounting hardware, and protecting the jack from excessive corrosion can significantly improve its service life. If a jack becomes difficult to operate or shows signs of structural damage, it should be inspected before further use.
DEER VALLEY TRAILER EXPERT TIP
One of the most common mistakes we see is selecting a replacement jack based only on the trailer's size. The most important factor is the trailer's actual tongue weight, followed by the mounting style, lift height, and available clearance around propane tanks, battery boxes, toolboxes, or other accessories. Bringing your existing jack or a few photos of your trailer helps our experienced parts specialists recommend the correct replacement the first time.