Quick take
Choosing between these four Dynamic Fluid Components units means deciding what the component needs to do in your hydraulic circuit. The three GP-F20 series gear pumps share a family design, but each one is specified differently. Their listed prices run from $191.62 to $342.18, so the decision is not only about performance. A fourth unit, the BMSY-100 hydraulic motor, covers rotary output rather than pumping. Start by matching the component type, then compare the settings that matter for your system.
Listed price comparison
| Model | Listed Price | Price Bar |
|---|---|---|
| GP-F20-06-S9-A Hydraulic Gear Pump | USD 342.18 | |
| GP-F20-16-P-A Hydraulic Gear Pump | USD 204.09 | |
| GP-F20-08-P1-C Hydraulic Gear Pump | USD 191.62 | |
| BMSY-100-E2-K-S-H Hydraulic Motor | USD 269.99 |
Decision matrix
| Model | What stands out | Watch out |
|---|---|---|
| GP-F20-06-S9-A | SAE 9-tooth spline shaft, counter-clockwise rotation, 3,650 psi max pressure | 0.36 displacement is the smallest of the three GP-F20 pumps; spline shaft differs from the straight-shaft models |
| GP-F20-16-P-A | 5/8-inch straight shaft, counter-clockwise rotation, 0.97 displacement | 2,900 psi max pressure is below the 3,650 psi listed on the other two GP-F20 pumps |
| GP-F20-08-P1-C | 3/4-inch straight shaft, clockwise rotation, 3,650 psi max pressure | 0.48 displacement sits between the 0.36 and 0.97 frames; rotation is clockwise |
| BMSY-100-E2-K-S-H | 24.1 HP continuous power, 2,566 in-lbf continuous torque | Listed as New - Open box; motor rather than gear pump |
Product notes
Dynamic Fluid Components GP-F20-06-S9-A Hydraulic Gear Pump
The GP-F20-06-S9-A pairs a SAE 9-tooth spline shaft with counter-clockwise rotation and a 3,650 psi max pressure rating. Its frame size 06 displacement is listed at 0.36, with a 1-inch inlet port, rear ported 4.32 inches, and side ported 3.87 inches as the port references. This is the model to compare when your pump drive uses a spline shaft and the circuit is set up for counter-clockwise rotation at high pressure. The rotation is fixed as counter-clockwise, and the 0.36 displacement is the smallest of the three GP-F20 gear pumps in this group.
Dynamic Fluid Components GP-F20-16-P-A Hydraulic Gear Pump
The GP-F20-16-P-A brings a 5/8-inch straight drive shaft and counter-clockwise rotation to the GP-F20 series. Its frame size 16 displacement is listed at 0.97, which is the largest displacement among the three gear pumps in this comparison. The max pressure rating is 2,900 psi, with a 3,600 rpm max speed and side and rear ported measurements of 4.50 and 4.95 inches. If your priority is moving a larger volume of fluid per revolution while staying within a 2,900 psi ceiling, this model stands out. The main constraint is that pressure ceiling: the other GP-F20 pumps here list 3,650 psi, so this one is not the match for higher-pressure circuits.
Dynamic Fluid Components GP-F20-08-P1-C Hydraulic Gear Pump
The GP-F20-08-P1-C is the clockwise-rotation option among the GP-F20 gear pumps, with a 3/4-inch straight drive shaft and a 1-inch inlet port. Its frame size 08 displacement is listed at 0.48, placing it between the 0.36 and 0.97 frames in this group. The max pressure rating matches the 06 model at 3,650 psi, with a 3,600 rpm max speed and rear ported 4.40 inches. The clockwise rotation and 3/4-inch shaft distinguish it from the counter-clockwise, spline-shaft or 5/8-inch-straight-shaft alternatives. If your circuit requires clockwise rotation, this is the one to focus on; otherwise the other two gear pumps are the counter-clockwise options.
Dynamic Fluid Components BMSY-100-E2-K-S-H Hydraulic Motor
The BMSY-100-E2-K-S-H is a hydraulic motor rather than a gear pump, so it serves a different part of the system. Its continuous ratings include 19.81 GPM flow, 2,566 in-lbf torque, and 24.1 HP, with an intermittent flow rate of 23.77 GPM and intermittent torque of 2,832 in-lbf. The displacement is 6.15 cu in/rev, and the ports are listed as #10 SAE O-Ring Boss with a 7/16-inch case drain port. The condition is listed as New - Open box. Because this is a motor, it is not a pump replacement; it is the unit to compare when the goal is rotary hydraulic output.
Final recommendation by use case
If your application calls for a gear pump, the three GP-F20 models here are the pump options: GP-F20-08-P1-C, GP-F20-16-P-A, and GP-F20-06-S9-A. If your application calls for a hydraulic motor, the BMSY-100-E2-K-S-H is the motor option. Match the specific unit to your drive.
