X-Block Hydraulic Adapter Kit Steel and Poly

In stock
SKU: PF-XBLOCK-KIT-POLY
Regular price $ 349.95
Regular price Sale $ 419.95 Sale price $ 349.95
X-block

We offer the following methods of delivery:

  • Same day Freight Shipping when ordered Mon-Fri before 12pm central time. (excluding holidays)
  • Pickup from our Mandeville, Louisiana warehouse
  • In some cases, free shipping - please contact us: sales@primarymover.com or call 985-888-6554

X-Block Hydraulic Adapter Kit

Convert Your Single-Acting Power Unit into a Dual-Circuit System for Dump Trailers & Hydraulic Builds

The Primary Mover X-Block Hydraulic Adapter Kit is a patent-pending solution designed to transform your single-acting hydraulic power unit into a dual-circuit system, allowing you to operate both your dump trailer hoist and a double-acting hydraulic function like a jack or tilt deck without replacing your pump.

Built for real-world dump trailer applications, this system delivers a compact, cost-effective upgrade for truck beds, trailers, and custom hydraulic setups where adding a second hydraulic function is critical.


Available Kit Options

X-Block Poly Tank Kit

Designed for power units with poly reservoirs. Includes:

  • 1x X-Block Hydraulic Adapter
  • 1x Manual Selector Valve, ball valve style
  • 1x Short Hose, pump to selector valve
  • 1x Hose, selector valve to X-Block
  • 1x Return Hose, X-Block to tank
  • 2x 72-inch hoses, X-Block to jack
  • 2x Straight JIC fittings for hydraulic jack
  • 3/4” NPT to 3/8” JIC fitting for poly tank return port

X-Block Steel Tank Kit

Designed for setups with steel tanks. Includes:

  • 1x X-Block Hydraulic Adapter
  • 1x Manual Selector Valve, ball valve style
  • 1x Short Hose, pump to selector valve
  • 1x Hose, selector valve to X-Block
  • 1x Return Hose, X-Block to tank
  • 2x 72-inch hoses, X-Block to jack
  • 2x Straight JIC fittings for hydraulic jack
  • 1/4” NPT to 3/8” JIC fitting for steel tank return port

Tank Compatibility Notice: Always verify your return port size before ordering. These kits are built around the most common Primary Mover tank configurations.


How the X-Block System Works

This system allows a single-acting, power-up / gravity-down hydraulic pump to operate a double-acting hydraulic jack.

  • The manual selector valve switches between the dump bed circuit and the jack circuit.
  • The X-Block red valve controls flow direction to extend or retract the jack.

Basic Operation

  1. Turn the selector valve to the jack circuit.
  2. Press UP on your power unit to extend the jack.
  3. Flip the red X-Block valve to the opposite direction.
  4. Press UP again to retract the jack.
  5. Once the jack is retracted, turn the selector valve back to the dump circuit.

Key Features

  • Patent-Pending Design: Converts single-acting systems into dual-function setups.
  • Dual-Circuit Capability: Run a dump hoist and jack from one power unit.
  • Rated to 3200 PSI: Built for real dump trailer hydraulic pressures.
  • Compact & Easy to Install: Minimal modification required.
  • Cost-Effective Upgrade: No need to replace your existing hydraulic power unit.
  • Dump Trailer & Truck Ready: Designed for real-world hydraulic applications.

Compatibility Notes

  • Return Port Required: Your pump or tank must allow fluid return.
  • Holding Valves Recommended: Best paired with hydraulic jacks featuring load-holding or counterbalance valves.
  • Designed for Single-Acting Systems: Built for power-up / gravity-down hydraulic power units.

Product Videos & Installation Help

Want to see how the X-Block works in real-world dump trailer setups?

Watch installation and walkthrough videos here
Replace this link with your Primary Mover video page URL.


Frequently Asked Questions

Will this work with my single-acting power unit?

Yes. This system is specifically designed for single-acting hydraulic power units, including power-up / gravity-down telescopic dump trailer setups.

It allows you to operate a double-acting hydraulic jack using your existing single-acting system.

I have a telescopic dump bed kit that is power up and gravity down. Will this work?

Yes, absolutely. The X-Block system was designed for single-acting power units so they can operate an additional double-acting circuit, such as a hydraulic jack.

We recommend using jacks with counterbalance valves so the jack has a controlled stroke in both directions.

How does this operate with a single-acting power unit and a double-acting jack?

The manual selector ball valve changes the system from the dump bed circuit to the jack circuit. The X-Block valve, which is the red valve, flips the direction of the fluid from the bottom side of the jack to the top side of the jack.

When you press the UP button on your power unit, the pump runs and extends the jack. When you are ready to retract the jack, turn the red X-Block valve to the opposite direction and press UP again. The jack will then retract.

Once the jack is retracted, turn the manual selector ball valve back to the dump side, and you are ready to use your dump bed again.

Do I need to use this with a jack that has dual counterbalance valves?

It is strongly recommended.

Customers have used the X-Block outside of that setup, but it requires a strong understanding of hydraulics and is not recommended for most users.

For safer and more controlled operation, especially under load, we recommend using double-acting hydraulic jacks with load-holding or counterbalance valves, like Primary Mover hydraulic jacks.

I have a steel tank. Which kit do I need?

Choose the X-Block Steel Tank Kit. This version includes the fitting commonly used for steel tank return ports.

Always check your tank return port size before ordering.

I have a poly tank. Which kit do I need?

Choose the X-Block Poly Tank Kit. This version includes the fitting commonly used for poly tank return plugs.

Always check your tank return port size before ordering.


Benefits of Choosing Primary Mover

  • Built for real dump trailer applications, not theoretical specs.
  • Designed from real customer needs and field testing.
  • Reliable performance at working pressure up to 3200 PSI.
  • Expert support from a team that understands hydraulic systems.
  • Trusted by dump trailer builders and truck conversion professionals.