Dexter 24K Dual Power Jacks – Hydraulic Trailer Jack Add-On Kit

Dexter 24K Dual Power Jacks – Hydraulic Trailer Jack Add-On Kit

The Dexter 24K Dual Power Jacks Add-On Kit is designed for trailers that already have a compatible hydraulic power unit and need to add dual hydraulic jack operation. This add-on kit includes two Dexter 12K hydraulic trailer jacks, selector valve, flow divider, hydraulic hoses, fittings, jack covers, and hardware for adding hydraulic lifting support to an existing trailer hydraulic system.

This kit is a strong option for heavy-duty trailers where manual crank jacks are slow, difficult, or impractical. It is commonly used on dump trailers, gooseneck trailers, equipment trailers, livestock trailers, horse trailers, cargo trailers, car haulers, construction trailers, flatbed trailers, and custom trailer builds.

What’s Included

• (2) Dexter 12K hydraulic trailer jacks with 2″ x 20″ hydraulic cylinders
• (1) Selector valve with aluminum handle
• (1) Flow divider combo, 2.5 GPM
• (8) 48″ hydraulic hose assemblies with straight #6 JIC fittings
• (13) Straight adapter fittings – #6 SAE male x #6 JIC male
• (1) Tee fitting – #6 JIC
• (2) Jack covers

Key Features

• 24,000 lb Combined Support Capacity: Includes two 12K hydraulic trailer jacks for heavy-duty trailer support applications. This refers to the combined static support rating.
• 20,000 lb Combined Lift Capacity: Provides strong hydraulic raising power when connected to a compatible hydraulic power unit and properly configured hydraulic system.
• Add-On Kit with Selector Valve: Designed to add dual hydraulic trailer jacks to an existing compatible hydraulic system.
• Flow Divider Included: Helps distribute hydraulic flow between both jack legs for dual-jack operation.
• 20″ Travel Range: Each jack provides a wide operating range for trailer hookup, leveling, and support.
• Large 9-1/2″ x 9-1/2″ Footplates: Help spread the load and improve stability on gravel, dirt, job sites, and uneven ground.
• Heavy-Duty 4″ x 4″ Outer Tubes: Rugged square-tube construction designed for demanding trailer and job site use.
• 3-Year Manufacturer Warranty: Backed by Dexter’s manufacturer warranty for dependable long-term performance.

Designed for Existing Hydraulic Trailer Systems

This Dexter | Premium Supply dual Power Jack add-on kit is intended for trailers that already have a compatible hydraulic power unit. The selector valve allows hydraulic flow to be routed between the trailer’s existing hydraulic function and the dual hydraulic trailer jacks, depending on the installation setup.

The included 2.5 GPM flow divider helps distribute hydraulic flow between both jack legs to support smoother dual-jack operation when properly installed and connected to a compatible hydraulic power unit.

This style of add-on kit is commonly used on dump trailers with existing hydraulic systems where customers want to add dual hydraulic trailer jacks without installing a second dedicated hydraulic pump.

If you need a complete hydraulic trailer jack system with pump and controls, Johnson Trailer Parts also offers Dexter 24K Dual Power Jacks hydraulic trailer jack kits, 24K kits with chargers, and 24K kits with KTI dual double-acting pumps.

Trailer Applications

Dexter | Premium Supply hydraulic Power Jacks are commonly used on heavy-duty trailers where manual crank jacks are slow, difficult, or impractical.

• Dump trailers
• Gooseneck trailers
• Equipment trailers
• Livestock and horse trailers
• Cargo trailers
• Car haulers
• Construction trailers
• Flatbed trailers
• Custom trailer builds and hydraulic trailer upgrades

Fitment Note

Proper frame height is critical for fitment and operation. The vertical distance from the bottom of each jack foot to the underside of the trailer frame should not exceed 8″. Always verify trailer frame height, mounting location, hydraulic system compatibility, hose routing, selector valve placement, flow divider placement, and installation requirements before ordering.

Specifications

• Brand: Dexter | Premium Supply
• Product Line: Power Jack
• Product Type: Dual hydraulic trailer jack add-on kit
• Configuration: Dual jack add-on kit with selector valve and flow divider
• Combined Support Capacity: 24,000 lb static support capacity
• Combined Lift Capacity: 20,000 lb hydraulic lift capacity
• Individual Jack Support Capacity: 12,000 lb each
• Individual Jack Lift Capacity: 10,000 lb each
• Travel: 20″
• Retracted Bracket Height: 30-3/4″
• Extended Bracket Height: 50-3/4″
• Footplate Size: 9-1/2″ x 9-1/2″
• Outer Tube Size: 4″ x 4″
• Hydraulic Cylinder Size: 2″ x 20″
• Flow Divider: 2.5 GPM flow divider combo
• Maximum Hydraulic Flow: Up to 2 GPM
• Maximum Raise / Extend Pressure: 3,200 PSI
• Maximum Lower / Retract Pressure: 1,500 PSI
• Recommended Fluid: Dexron III ATF for normal operating conditions
• Warranty: 3-year manufacturer warranty

Installation Manual

• ⇓ Download Dexter 12K Hydraulic Trailer Jack Manual

Important Notes

• This listing is for the dual hydraulic trailer jack add-on kit with selector valve and flow divider.
• This add-on kit is intended for trailers with an existing compatible hydraulic power unit.
• The maximum distance from the bottom of each jack foot to the underside of the trailer frame should not exceed 8″.
• Professional installation is recommended for hydraulic and electrical trailer systems.

Frequently Asked Questions

What is this add-on kit used for?

This kit is designed to add two Dexter 12K hydraulic trailer jacks to a trailer that already has a compatible hydraulic power unit. The selector valve and flow divider allow the system to be configured for dual-jack operation.

What is the flow divider used for?

The flow divider helps distribute hydraulic flow between both jack legs during operation. This supports smoother dual-jack movement when the system is properly installed and connected to a compatible hydraulic power unit.

What hydraulic fluid should I use?

For normal operating conditions, Dexron III ATF is recommended for this hydraulic trailer jack system. In extremely cold operating environments, a synthetic aircraft-rated hydraulic fluid may be required. MIL-H-83283 is commonly recommended for extreme cold applications. Always confirm fluid requirements for your climate and hydraulic setup before servicing the system.

Do these jacks self-level the trailer?

No. These jacks do not automatically self-level the trailer. They provide hydraulic lifting and lowering, but trailer leveling must still be controlled by the operator.

What is the difference between support capacity and lift capacity?

The 24,000 lb rating refers to the combined support capacity of both jacks, while the 20,000 lb rating refers to combined hydraulic lifting capacity. Support capacity is the static load the jacks are designed to support, while lift capacity is the load the hydraulic system is designed to raise.

Can this kit be used with a dump trailer hydraulic pump?

Yes, this style of add-on kit is commonly used with compatible dump trailer hydraulic systems. Always verify hydraulic pressure, flow, reservoir capacity, selector valve routing, flow divider requirements, and installation requirements before connecting the jacks to an existing hydraulic system.

Related Dexter Power Jack Options

Need a different hydraulic trailer jack setup? Compare our Dexter 12K single and 24K dual Power Jack options below:

• Dexter 12K Power Jack – Hydraulic Trailer Jack
• Dexter 12K Power Jack – Hydraulic Trailer Jack Add-On Kit
• Dexter 24K Dual Power Jacks – Hydraulic Trailer Jacks
• Dexter 24K Dual Power Jacks – Hydraulic Trailer Jack Kit with KTI Hydraulic Pump
• Dexter 24K Dual Power Jacks – Hydraulic Trailer Jack Kit with KTI Hydraulic Pump and Chargers
• Dexter 24K Dual Power Jacks – Hydraulic Trailer Jack Kit with KTI Dual Double-Acting Pump

Why Buy from Johnson Trailer Parts?

At Johnson Trailer Parts, we supply genuine Dexter | Premium Supply hydraulic trailer jack products for trailer builders, repair shops, farms, contractors, and trailer owners who need dependable hydraulic lifting solutions.

Choosing the wrong jack or mismatched hydraulic setup can create installation problems and added cost. If you are unsure whether you need a jack-only replacement, add-on kit, complete kit, or single or dual jack setup, contact us before ordering and we can help match the right Dexter Power Jack system to your trailer.

Need help choosing the right hydraulic trailer jack setup? Call Johnson Trailer Parts at (602) 292-9690 for expert fitment support.