Dexter 12K Power Jack – Hydraulic Trailer Jack Kit

Dexter 12K Power Jack – Hydraulic Trailer Jack Kit

The Dexter 12K Power Jack Kit is a complete single-jack hydraulic system built to make heavy trailer lifting, leveling, and hookup easier without manual cranking. Designed with a Dexter | Premium Supply hydraulic trailer jack and KTI hydraulic pump, this kit provides push-button lifting power for demanding trailer applications.

This complete kit is a strong choice for trailers that need a dedicated hydraulic jack system with pump, controls, hoses, fittings, battery cables, and hardware.

What’s Included

• (1) Dexter 12K hydraulic trailer jack
• (1) KTI hydraulic pump / double-acting hydraulic power unit with 15′ wired remote control
• (2) 48″ hydraulic hoses with straight #6 JIC fittings
• (2) 90-degree fittings – #6 SAE male x #6 JIC male
• (2) Straight adapter fittings – #6 SAE male x #6 JIC male
• (2) Battery cables
• (1) Rubber strap
• (1) Jack cover

Key Features

• Complete 12K Power Jack Kit: Includes the hydraulic jack, KTI hydraulic pump, hoses, fittings, battery cables, wired remote, jack cover, and hardware for a single hydraulic trailer jack setup.
• 12,000 lb Support Capacity: Designed for heavy-duty trailer support applications. This refers to the jack’s static support rating.
• 10,000 lb Lift Capacity: Provides strong hydraulic raising power for trailer hookup, leveling, and support.
• Push-Button Operation: Hydraulic power helps eliminate manual cranking and makes heavy trailer positioning easier.
• 20″ Travel Range: Offers a wide operating range for trailer hookup, leveling, and support.
• Large 9-1/2″ x 9-1/2″ Footplate: Helps spread the load and improve stability on gravel, dirt, job sites, and uneven ground.
• Heavy-Duty 4″ x 4″ Outer Tube: 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.

Complete Hydraulic Trailer Jack System

This Dexter | Premium Supply Power Jack kit is designed for trailers that need a complete hydraulic jack setup with a dedicated KTI hydraulic pump. The hydraulic power unit provides controlled lifting and lowering, helping reduce the effort required to connect, level, and support heavy trailers.

The included KTI pump is designed for dependable 12V hydraulic operation and works with the single Dexter 12K Power Jack to provide smooth, controlled movement. This setup is especially useful on trailers where manual crank jacks are slow, difficult, or impractical.

If you already have a compatible hydraulic power unit and only need the jack setup, see the Dexter 12K Power Jack hydraulic trailer jack add-on kit. For dump trailer setups that need jack control plus dump bed operation from one remote, see the 12K kit with KTI dual double-acting pump.

Trailer Applications

Dexter | Premium Supply hydraulic Power Jacks are commonly used on heavy-duty trailers where strong hydraulic lifting power and dependable trailer support are needed.

• 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 the jack foot to the underside of the trailer frame should not exceed 8″. Always verify trailer frame height, mounting location, battery location, hydraulic hose routing, and installation requirements before ordering.

Specifications

• Brand: Dexter | Premium Supply
• Product Line: Power Jack
• Product Type: Hydraulic trailer jack kit
• Configuration: Single jack kit with KTI hydraulic pump
• Support Capacity: 12,000 lb static support capacity
• Lift Capacity: 10,000 lb hydraulic lift capacity
• 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 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
• Manufacturer Part Number: PJS-12-20-K
• Warranty: 3-year manufacturer warranty

Installation Manuals

• ⇓ Download Dexter 12K Hydraulic Trailer Jack Manual
• ⇓ Download KTI Double Acting Pump Installation Manual

Important Notes

• This listing is for the complete single hydraulic trailer jack kit with KTI hydraulic pump.
• The maximum distance from the bottom of the jack foot to the underside of the trailer frame should not exceed 8″.
• Professional installation is recommended for hydraulic and electrical trailer systems.
• Always verify trailer frame height, mounting location, battery location, hose routing, and hydraulic system layout before installation.

Frequently Asked Questions

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.

Does this jack self-level the trailer?

No. This jack does not automatically self-level the trailer. It provides 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 12,000 lb rating refers to the jack’s support capacity, while the 10,000 lb rating refers to hydraulic lifting capacity. Support capacity is the static load the jack is designed to support, while lift capacity is the load the hydraulic system is designed to raise.

Can this kit replace a manual crank trailer jack?

Yes, this kit is commonly used as an upgrade from manual crank trailer jacks. It provides hydraulic lifting and lowering to make heavy trailer hookup, leveling, and support easier.

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

Why Buy from Johnson Trailer Parts?

Johnson Trailer Parts supplies 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 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.