When you're outfitting a dump trailer, one of the first decisions is which 12V hydraulic pump to run. The two units in this comparison take opposite approaches: one delivers power on the way up and the way down, while the other keeps the system simple and relies on gravity to lower the bed. That difference affects not only how the trailer behaves but also how much you'll spend and how much space the pump takes up.
Quick Verdict
If you need hydraulic power for both lifting and lowering, the double acting 8-quart pump is the more capable unit. If your dump trailer uses a gravity-lowering setup and you want a simpler, lower-cost pump, the single acting 1.5-liter unit is the practical pick. Both run on 12V DC and include remote controls.
Comparison at a Glance
Here are the key differences that matter most when choosing between these two power units.
| Feature | Double Acting 8 Qt | Single Acting 1.5L |
| Price | USD 439.00 | USD 143.99 |
| Action | Double acting (power up and power down) | Single acting (power up, gravity down) |
| Reservoir | 8 quarts | 1.5 liters (approx. 1.58 qt) |
| Flow | 1.25 GPM at 2500 PSI | 1.1 cc/r displacement |
| Warranty | 1 year | 10 years |
Where Each Product Wins
Where the Double Acting 8 Qt Wins
The larger pump wins on capacity and adjustability. Its 8-quart reservoir holds substantially more oil than the 1.5-liter tank, which is helpful for bigger cylinders. The adjustable relief valve also lets you set maximum pressure to match your trailer's requirements. If you need a pump that can sustain demanding cycles without running out of oil, this is the stronger choice.
Where the Single Acting 1.5L Wins
The single acting unit wins on upfront price and warranty length. At $143.99, it costs a fraction of the double acting pump, and the 10-year manufacturer warranty gives you long coverage for a modest outlay. Its small size also makes it easier to mount in tight trailer frames.
Product Notes
Double Acting 8 Qt Hydraulic Pump
This Magister Hydraulics pump is built for heavier duty work. It's made in the United States and uses a 6 kW motor rated for 12V DC operation. A wired remote controller is included, and the adjustable relief valve can be set up to 2500 PSI. This is a substantial unit at roughly 17 lbs, so you'll want a sturdy mounting point. For work sites where you need a reliable, well-specified power unit, this pump gives you a clear performance baseline. Just be prepared for the extra weight under the trailer.
Single Acting 1.5L Hydraulic Power Unit
This compact power unit is a good match for a basic dump trailer setup. Its 800W copper wire motor gives it fast startup, and the small footprint means you can mount it in tight spots. A remote control system is included, so you can operate the pump from a distance. The pump is designed to be a direct replacement for many 12V DC remote-controlled hydraulic systems. On the downside, assembly is required and hydraulic oil is not included, so you'll need to supply that before first use. For the money, this unit delivers the essential lifting function without a lot of extra complexity.
Final Choice by Use Case
Choose the double acting pump if your trailer uses a double acting cylinder or you want the convenience of hydraulic lowering. Choose the single acting pump if you have a single acting cylinder and are comfortable letting gravity return the bed after dumping.
