Quick verdict
If you need a new source of hydraulic flow for a circuit, the Dynamic Fluid Components GP-F20-08-P1-A gear pump is the component that delivers it. If you need to push, pull, lift, or press with a linear actuator, the AMRAP tie-rod cylinder is the component that turns fluid pressure into motion. At $191.62 and $126.34 respectively, the price spread is about $65, with the cylinder at the lower end.
At a glance
| Component | Listed Price | What It Does | Choose It For |
|---|---|---|---|
| Dynamic Fluid Components GP-F20-08-P1-A Hydraulic Gear Pump | $191.62 | Generates hydraulic flow with max pressure 3650 psi | Building or repairing the power side of a circuit |
| 2.5x6 Hydraulic Cylinder with 2.5" bore and 6" stroke | $126.34 | Converts fluid pressure into linear motion | Pushing, pulling, lifting with a 2.5" bore |
Where each product wins
The gear pump wins when your project needs a high-pressure flow source. Its SAE-12 inlet and SAE-10 outlet ports, cast iron end plates, and aluminum center section are built for continuous pump duty. You get a clearly defined power-side component for a circuit that needs flow.
The cylinder wins when you need reliable linear actuation. The double-acting tie-rod design works on both strokes, and the listed column load of 12,270 lbs at 2500 PSI shows it is built for real work. Its lower listed price makes it the easier budget choice when motion is the goal.
Product notes
Dynamic Fluid Components GP-F20-08-P1-A Hydraulic Gear Pump
This new gear pump comes from Dynamic Fluid Components' GP-F20 series, with an aluminum center section and cast iron end plates. Its 0.48 in3/rev displacement, 2000 rpm rated speed, and 3650 psi max pressure point to a component designed to feed hydraulic circuits that need real pressure. The counter-clockwise 3/4" straight shaft and SAE-12 inlet / SAE-10 outlet ports give you concrete connection targets. Choose it when your build lacks a flow source and you want a pump you can mount with a standard SAE A 2-bolt flange. The limitation is that it doesn't move a load by itself - it only creates flow. It also carries the higher price of this pair, so if your project already has pressure and just needs a linear actuator, you don't need this pump.
2.5x6 Hydraulic Cylinder 2.5" Bore 6" Stroke Double Acting Tie-Rod Cylinder
This AMRAP Co cylinder is built around a 2.5" bore and a 6" stroke, with a 1.125" rod and a tie-rod design that allows fluid to extend and retract it in both directions. The listed specs include a 2500 PSI max operating pressure, a 12,270 lb column load, and a 3/8" NPT port size. It is a double-acting cylinder, so you get power on both strokes rather than relying on a spring return. Choose it when your application calls for pushing or pulling through a 6-inch travel path and you want a cylinder ready to work at up to 2500 PSI. The trade-off is that it needs an external pump or power unit to do anything - it can't generate pressure on its own. Its lower listed price makes it the easier buy when motion, not flow, is your bottleneck.
Final choice by use case
For a complete hydraulics pneumatics project, you actually need both: the pump supplies flow, the cylinder turns it into mechanical work. If you can only buy one right now, base the choice on your immediate need. If you are replacing a pump or building the power unit, go with the Dynamic Fluid Components gear pump. If you are adding a linear actuator to an existing hydraulic system, the AMRAP 2.5x6 cylinder is the component that fits the job and the smaller part of your budget.
