Home » Primary Mover 12V Double-Acting Hydraulic Power Unit – 3 HP – Poly Reservoir
Primary Mover 12V Double-Acting Hydraulic Power Unit Compact unit with a 3 HP motor, red-capped hydraulic tank, and yellow remote for bidirectional dump-bed control.
Primary Mover hydraulic power unit and white poly reservoirs in several shapes, with red fill caps and a yellow two-button remote.
Specifications graphic for a Primary Mover 12V hydraulic power unit with a 4-quart poly reservoir, showing dimensions and performance labels.
Installation graphic showing a Primary Mover power unit, horizontal mounting with a green checkmark and vertical mounting with a red X.
Primary Mover 4-quart poly reservoir with red fill caps, shown with feature callouts for the dipstick, sealed cap and mounting orientation.
Primary Mover hydraulic power unit with white poly reservoir and yellow remote, beside motor and solenoid close-ups and dump-truck illustrations.
Primary Mover hydraulic power unit beside photos of a dump trailer, vehicle lift platform and dump truck, with application icons.
Primary Mover hydraulic power unit with a tall white poly reservoir, red caps and yellow wired two-button remote.
Primary Mover 12V Double-Acting Hydraulic Power Unit, 3 HP Motor Compact hydraulic unit with a 12V motor, 6-quart reservoir, dual-acting control, and 3 HP power for dump beds and trailers.
Installation graphic for a Primary Mover hydraulic power unit, showing horizontal mounting with a check mark and vertical mounting crossed out.
Primary Mover 5-quart poly reservoir with red fill caps and yellow remote, shown with dipstick, cap and mounting feature callouts.
Primary Mover hydraulic power unit with a white poly reservoir and yellow wired two-button remote, beside motor close-ups and dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Installation graphic showing a horizontal mounting diagram with a check mark and a vertical diagram with a cross beside a Primary Mover hydraulic power unit.
Primary Mover 6-quart poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover hydraulic power unit with a white poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover hydraulic power unit with a tall white poly reservoir, red caps and a yellow two-button wired remote on a white background.
Specifications graphic for a Primary Mover hydraulic power unit labeled 8-quart poly reservoir, with overall and reservoir dimensions.
Installation graphic showing horizontal and vertical mounting diagrams beside a Primary Mover hydraulic power unit with a tall poly reservoir.
Primary Mover 8-quart poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover hydraulic power unit with a tall poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover hydraulic power unit with a long white poly reservoir, red caps and a yellow two-button wired remote on a white background.
Specifications graphic for a Primary Mover hydraulic power unit labeled 13-quart poly reservoir, with overall and reservoir dimensions.
Installation graphic showing horizontal and vertical mounting diagrams beside a Primary Mover hydraulic power unit with a long poly reservoir.
Primary Mover 12V Double-Acting Hydraulic Power Unit – Poly Tanks, 3 HP Motor. Features include a 13-quart polyethylene reservoir, red sealed cap, pendant controller, and logo.
Primary Mover hydraulic power unit with a long poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover hydraulic power unit with a wide white poly reservoir, red caps and a yellow two-button wired remote on a white background.
Specifications graphic for a Primary Mover hydraulic power unit labeled 13-quart poly reservoir, showing a wide tank and dimension labels.
Installation graphic showing a square-reservoir power unit, horizontal mounting with a green checkmark and vertical mounting with a red X.
Primary Mover hydraulic power unit with a wide poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover 13-quart square poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover 12V Double-Acting Hydraulic Power Unit – Poly Tanks, 3 HP Motor Compact hydraulic power unit with motor, solenoids, reservoir, and pendant control for lift systems.
Specifications graphic for a Primary Mover hydraulic power unit labeled 5-quart poly reservoir, with overall and reservoir dimensions.
Primary Mover 5-quart poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover hydraulic power unit with a poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Installation graphic showing horizontal and vertical mounting diagrams beside a Primary Mover hydraulic power unit with a poly reservoir and yellow remote.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover 12V Double-Acting Hydraulic Power Unit Compact unit with a 3 HP motor, red-capped hydraulic tank, and yellow remote for bidirectional dump-bed control.
Primary Mover hydraulic power unit and white poly reservoirs in several shapes, with red fill caps and a yellow two-button remote.
Specifications graphic for a Primary Mover 12V hydraulic power unit with a 4-quart poly reservoir, showing dimensions and performance labels.
Installation graphic showing a Primary Mover power unit, horizontal mounting with a green checkmark and vertical mounting with a red X.
Primary Mover 4-quart poly reservoir with red fill caps, shown with feature callouts for the dipstick, sealed cap and mounting orientation.
Primary Mover hydraulic power unit with white poly reservoir and yellow remote, beside motor and solenoid close-ups and dump-truck illustrations.
Primary Mover hydraulic power unit beside photos of a dump trailer, vehicle lift platform and dump truck, with application icons.
Primary Mover hydraulic power unit with a tall white poly reservoir, red caps and yellow wired two-button remote.
Primary Mover 12V Double-Acting Hydraulic Power Unit, 3 HP Motor Compact hydraulic unit with a 12V motor, 6-quart reservoir, dual-acting control, and 3 HP power for dump beds and trailers.
Installation graphic for a Primary Mover hydraulic power unit, showing horizontal mounting with a check mark and vertical mounting crossed out.
Primary Mover 5-quart poly reservoir with red fill caps and yellow remote, shown with dipstick, cap and mounting feature callouts.
Primary Mover hydraulic power unit with a white poly reservoir and yellow wired two-button remote, beside motor close-ups and dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Installation graphic showing a horizontal mounting diagram with a check mark and a vertical diagram with a cross beside a Primary Mover hydraulic power unit.
Primary Mover 6-quart poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover hydraulic power unit with a white poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover hydraulic power unit with a tall white poly reservoir, red caps and a yellow two-button wired remote on a white background.
Specifications graphic for a Primary Mover hydraulic power unit labeled 8-quart poly reservoir, with overall and reservoir dimensions.
Installation graphic showing horizontal and vertical mounting diagrams beside a Primary Mover hydraulic power unit with a tall poly reservoir.
Primary Mover 8-quart poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover hydraulic power unit with a tall poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover hydraulic power unit with a long white poly reservoir, red caps and a yellow two-button wired remote on a white background.
Specifications graphic for a Primary Mover hydraulic power unit labeled 13-quart poly reservoir, with overall and reservoir dimensions.
Installation graphic showing horizontal and vertical mounting diagrams beside a Primary Mover hydraulic power unit with a long poly reservoir.
Primary Mover 12V Double-Acting Hydraulic Power Unit – Poly Tanks, 3 HP Motor. Features include a 13-quart polyethylene reservoir, red sealed cap, pendant controller, and logo.
Primary Mover hydraulic power unit with a long poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover hydraulic power unit with a wide white poly reservoir, red caps and a yellow two-button wired remote on a white background.
Specifications graphic for a Primary Mover hydraulic power unit labeled 13-quart poly reservoir, showing a wide tank and dimension labels.
Installation graphic showing a square-reservoir power unit, horizontal mounting with a green checkmark and vertical mounting with a red X.
Primary Mover hydraulic power unit with a wide poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover 13-quart square poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover 12V Double-Acting Hydraulic Power Unit – Poly Tanks, 3 HP Motor Compact hydraulic power unit with motor, solenoids, reservoir, and pendant control for lift systems.
Specifications graphic for a Primary Mover hydraulic power unit labeled 5-quart poly reservoir, with overall and reservoir dimensions.
Primary Mover 5-quart poly reservoir with red caps and yellow remote, shown with fluid-level and reservoir-feature callouts.
Primary Mover hydraulic power unit with a poly reservoir and yellow remote, beside motor close-ups and raised and lowered dump-truck illustrations.
Installation graphic showing horizontal and vertical mounting diagrams beside a Primary Mover hydraulic power unit with a poly reservoir and yellow remote.
Primary Mover hydraulic power-unit close-up beside photos of a dump trailer, vehicle lift platform and dump truck.
Primary Mover

Primary Mover 12V Double-Acting Hydraulic Power Unit – 3 HP – Poly Reservoir

In stock
SKU: PFP-DA04P
(8)
$ 349.95
Size

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

12V Double-Acting Hydraulic Power Unit with Poly Reservoir

The Primary Mover 12V Double-Acting Hydraulic Power Unit pairs a 3 HP (2.2 kW) motor with a poly reservoir and a 15-foot remote pendant. Designed for compatible power-up/power-down systems, it supplies hydraulic pressure for both cylinder extension and retraction.

Key Features

  • 3 HP (2.2 kW), 12V DC motor: Drives the hydraulic pump for powered movement in both directions.
  • 300-amp continuous-current-rated motor contactor: Heavy-duty electrical switching. This component rating does not make the complete power unit continuous-duty.
  • Double-acting operation: Powers a compatible cylinder through its extension and retraction strokes.
  • SAE #6 work ports: Connect to the two working lines of a compatible double-acting circuit. Confirm fitting compatibility before installation.
  • Approximately 3,200 PSI relief on Port A and 1,500 PSI on Port B: Match both pressure settings to the approved ratings and operating requirements of your equipment.
  • 15-foot wired pendant: Provides control of powered movement in both directions.
  • Poly reservoir options: Choose from six capacity and tank-shape combinations.

  • Two-Year Limited Warranty – Backed by Primary Mover support and service. Warranty claims are evaluated for diagnosis, parts, repair, or replacement as appropriate. Coverage does not mean an automatic new-unit exchange.

Poly Reservoir Sizes and Model Numbers

Reservoir option Model / SKU
4-quart poly PFP-DA04P
5-quart poly PFP-DA05P
6-quart poly PFP-DA06P
8-quart poly PFP-DA08P
13-quart poly, narrow style PFP-DA13P
13-quart poly, square style PFP-DA13SP

Reservoir sizes are nominal. Size the tank for the cylinder and complete circuit throughout the full stroke, with the required oil reserve, pickup coverage and headspace. Check the power unit and reservoir dimension resources to confirm mounting space and clearance before ordering.

Applications and Circuit Compatibility

Use this unit with compatible power-up/power-down dump trailers, tilt trailers, hydraulic ramps and other equipment requiring powered cylinder extension and retraction. Confirm the cylinder type, both pressure requirements, hydraulic connections, reservoir capacity and electrical supply before ordering.

A double-acting unit is not a direct replacement for every single-acting system. If your equipment uses power-up/gravity-down operation, compare our 12V single-acting power unit with poly reservoir. Read single-acting vs. double-acting hydraulic power units for help matching the circuit.

Pressure and Operating Speed

Pressure and cylinder area determine hydraulic force; oil flow and cylinder dimensions determine operating speed. Actual flow varies with working pressure, battery voltage, wiring and fluid temperature. The relief settings do not establish constant GPM output or your trailer's lifting-capacity rating. Learn why pressure and flow both matter on a dump trailer.

Installation and Operating Requirements

  • Standard mounting: Horizontal configuration.
  • Hydraulic fluid: Non-synthetic automatic transmission fluid (ATF). Follow the instructions approved for your specific model.

  • ⚠ Weather Disclaimer:
    This unit is not waterproof. Install in a dry, weather-protected area. Moisture intrusion will void the warranty.

  • Electrical installation: Confirm battery, cable sizing, circuit protection and disconnect requirements with the model-specific installation instructions before wiring.
  • Operating limits: Follow the power unit's duty and temperature limits. The contactor's continuous-current rating is not a continuous-running rating for the pump.

Optional Vertical Mounting Upgrade

The PF-VSU-01 vertical suction tube upgrade is sold separately. Confirm compatibility with your selected reservoir and installation before changing mounting orientation.

Promotional graphic showing a vertical oil pickup tube beside a Primary Mover hydraulic power unit and wired remote, noting an optional upgrade for upright mounting.

Frequently Asked Questions

What does a double-acting hydraulic power unit do?

It supplies hydraulic pressure to extend and retract a compatible cylinder. On a suitable dump trailer or tilt system, this provides power-up and power-down operation rather than relying on gravity alone for the return stroke.

Can I replace my single-acting pump with this model?

Not without checking the complete system. Single-acting and double-acting systems have different circuit and cylinder requirements. Confirm your cylinder, hoses, controls and pressure ratings with Primary Mover before changing pump type. Our single-acting vs. double-acting guide explains the distinction.

Which poly reservoir sizes are available?

This listing offers 4-, 5-, 6- and 8-quart poly reservoirs, plus 13-quart narrow and 13-quart square options. Choose based on required oil capacity and available mounting space.

How do I size the reservoir for a double-acting cylinder?

Oil moves between the reservoir and both sides of the cylinder. For a conventional single-rod cylinder, the net tank-level change relates to rod displacement, but tank selection must also allow for the complete circuit, operating reserve, pickup coverage and expansion space. Use your cylinder manufacturer's oil-volume information and confirm the required capacity through the full stroke.

Are both work ports rated at 3,200 PSI?

No. This model is listed with approximately 3,200 PSI relief on Port A and 1,500 PSI on Port B. Verify that both settings suit your cylinder and application; do not assume equal available pressure or force in both directions.

Will the 3 HP motor or a larger tank make my trailer lift faster?

Cycle speed depends on actual pump flow at working pressure and the oil volume the cylinder needs. Motor horsepower alone does not establish cycle time, and a larger reservoir does not increase pump output. Neither change increases your equipment's rated lifting capacity.

What hydraulic ports does this double-acting unit use?

This Primary Mover double-acting model uses SAE #6 work ports for its two working lines. Verify the required fittings and hose ratings for your installation.

How long is the pendant cord, and what fluid does it use?

The wired pendant has a 15-foot cord. This model specifies non-synthetic automatic transmission fluid (ATF). Keep the fluid clean and follow the correct model's filling and maintenance instructions.

Is the power unit waterproof or suitable for continuous running?

This unit is not waterproof. Install it in a dry, weather-protected compartment and follow the model's operating duty and temperature limits. The 300-amp continuous-current rating applies to the motor contactor, not to continuous operation of the complete power unit.

Can I mount this power unit vertically?

The standard configuration is for horizontal mounting. The PF-VSU-01 vertical suction tube upgrade is available separately. Confirm the selected reservoir and installation are compatible before changing orientation.

Manual and Product Video

Visit Manuals and Product Documentation for product resources. The double-acting manual download is currently unavailable. Contact Primary Mover support for the correct manual for your model before installation; do not substitute single-acting instructions.

Need help choosing a reservoir or checking compatibility? Call 985-888-6554 or browse all 12V DC hydraulic power units.