When a hydraulics pneumatics project needs motion, the first decision is whether you're replacing the part that moves a load or adding the power source that drives the whole circuit. These two components sit on opposite sides of that line: the 2.5x6 Hydraulic Cylinder is a double-acting tie-rod actuator, while the 20 Quart Double Acting Hydraulic Pump is a 12V DC power unit with its own reservoir. The price spread between them is $113.66, so the real question is what your system is missing.
Quick verdict
If your hydraulic system already has pressure and you need a tie-rod cylinder to do the pushing, get the AMRAP Co cylinder. If you need a self-contained 12V power source to run a dump trailer, get the OE quality power unit. One is a component; the other is the source of flow.
Price and core specs at a glance
| Consideration | 2.5x6 Tie-Rod Cylinder | 20 Quart 12V Power Unit |
| Price | $126.34 | $240.00 |
| Core role | Double-acting linear actuator | Double-acting power unit with 20 quart reservoir |
| Max pressure | 2500 PSI | 3200 PSI (port A), 1500 PSI (port B) |
| Key specs | 2.5-inch bore, 6-inch stroke, 3/8-inch NPT ports | 1.6KW 12V DC motor, SAE #6 ports, up to 0.91 GPM |
| Extras | 1-inch pin holes, 16 1/4-inch retracted length | 15-ft remote pendant, 2 extra SAE #6 fittings |
| What it needs | Connection to hydraulic fluid supply | A separate cylinder to convert flow into motion |
Where each product wins
The 2.5x6 Tie-Rod Cylinder wins when you already have a pump or power unit and need a double-acting actuator. It is the part to add if your only missing piece is the cylinder that moves the load.
The 20 Quart 12V Power Unit wins when you need the pump and controls in a single self-contained package. It is the complete source of flow for a dump trailer.
Product notes
2.5x6 Hydraulic Cylinder
This tie-rod cylinder is a straightforward linear component. The double-acting design extends and retracts using hydraulic fluid under pressure, and it is rated for 2500 PSI with a 12,270-pound column load, so it suits jobs that need a defined stroke rather than delicate positioning. The 3/8-inch NPT ports and 1-inch pin holes give you standard connection points, and the black finish matches most hydraulic hardware. It is the add-on actuator for systems that already have a pump or power unit. The catch is that it must be connected to a hydraulic fluid supply to do its job.
20 Quart Double Acting Hydraulic Pump
The 20 Quart Double Acting Hydraulic Pump takes the opposite role. It is a self-contained 12V DC power unit with a 1.6KW motor, a metal reservoir, and a double-acting power-up/power-down function. It is rated at 3200 PSI for port A and 1500 PSI for port B, with flow up to 0.91 GPM, and it connects through SAE #6 ports. Two extra SAE #6 fittings and a 15-foot remote control pendant are included, so you can operate the dump trailer from a distance. The reservoir is built to handle demanding use, and the unit is offered as a direct replacement style pump. It is the complete power source when you are building a mobile hydraulic setup. Plan to pair it with a separate cylinder that converts that pressurized flow into motion.
Final choice by use case
Choose the 2.5x6 Hydraulic Cylinder if you are replacing an actuator on a machine that already has hydraulic pressure, or if your project needs a 2.5-inch bore, 6-inch stroke double-acting cylinder.
Choose the 20 Quart 12V Power Unit if you are equipping a dump trailer or building a mobile hydraulic setup that needs its own 12V pump and remote control.
If you are building a system from scratch, these two work together: the power unit supplies the pressure, and the cylinder turns it into a useful stroke.
