Choosing a hydraulic gear pump can feel like walking a tightrope between flow, pressure, and mounting fit. If you pick one that pushes too little fluid, your cylinder moves sluggishly; choose one that strain against your pump's drive speed, you may shorten its life. The Dynamic Fluid Components GP-F20-16-P-A hydraulic gear pump, priced at USD 204.09, offers a specific set of numbers you need to match against your system. Here's a closer look at what it brings to the table.
Quick verdict
The GP-F20-16-P-A is a compact hydraulic gear pump built for systems that need a displacement of 0.97 in³/rev (16 cm³/rev) and can handle up to 2900 psi. Its cast iron end plates and aluminum center section suggest a focus on durability and heat dissipation. For that price, it looks like a solid option if your application aligns with its 2000 rpm rated speed, counter-clockwise rotation, and SAE port sizes.
Dynamic Fluid Components GP-F20-16-P-A Hydraulic Gear Pump

At the heart of this pump is a displacement of 0.97 in³/rev, which determines how much fluid moves per rotation. The maximum pressure sit at 2900 psi, so it suits medium- to high-pressure hydraulic circuits. The pump is rated for 2000 rpm, though it can spin up to 3600 rpm if your drive can keep up.
The shaft is a straight 5/8" diameter, and the rotation is counter-clockwise, so you need to confirm your power source turns the right way and couples to that shaft style. Inlet and outlet ports are SAE-12 and SAE-10, respectively, with both side porting at 4.50" and rear porting at 4.95"-important dimensions for manifold placement.
Weighing in at 11 lbs and measuring 4 × 4 × 4 in, this is a compact unit that won't dominate your hydraulic layout.
Who it suits
The GP-F20-16-P-A works best for someone who knows their hydraulic system requires a 0.97 in³/rev pump with pressures up to 2900 psi. The counter-clockwise rotation is a key parameter-if your drive runs clockwise, this pump won't work without changing rotation or installing a different model. It's a good match for industrial equipment, mobile machinery, or stationary hydraulics where the mounting flange (SAE A - 2 bolt) and port sizes fit your existing lines.
What stands out from the listed details
- High pressure ceiling: 2900 psi gives you headroom for strong actuation.
- Broad speed range: Rated at 2000 rpm but capable of 3600 rpm, offering flexibility in matching your prime mover.
- Bolted, robust construction: Cast iron end plates and an aluminum center section are a common combo for hydraulic gear pumps that see heavy duty.
- Two porting options: Side and rear ports give you more routing flexibility in tight spaces.
Meaningful trade-offs
This pump is not a universal fit. The counter-clockwise rotation is a specific requirement, and the straight 5/8" shaft may not match every pump drive. Its compact 4-inch cube body also limits the internal gear width, which is fine for 0.97 in³/rev but won't give you higher flow if your application changes later. The rated speed of 2000 rpm means you'll need to keep your drive within that range for optimum performance, even though the maximum is higher.
Bottom line
The Dynamic Fluid Components GP-F20-16-P-A hydraulic gear pump is a well-specified component for circuits that match its displacement, pressure, and rotation direction. At $204.09, it packs a lot of capability into a small package, but only if your system already aligns with its 0.97 in³/rev flow and counter-clockwise turning direction. Check those numbers twice before ordering, and this pump could be the quiet workhorse your hydraulics setup needs.