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Aftermarket Dynamic 9-7503-11 11 GPM 2 Stage Hydraulic Pump
Replacement Part Number: 9-7503-11, 9750311
Description:
This dual-stage hydraulic gear pump is built to handle intensive workloads with consistent reliability. Offering 3.4 GPM at high pressure and 11 GPM at low pressure, it’s ideal for log splitters, presses, hydraulic power units, and more. Engineered for long service life and efficient operation, this unit is a powerful, compact solution for two-stage hydraulic systems.
Technical Specifications:
Pump Type: Dual-Stage Gear
Displacement:
0.220 cu. in./rev (High-pressure stage)
0.757 cu. in./rev (Low-pressure stage)
Flow Rate:
3.4 GPM (High-pressure stage)
11 GPM (Low-pressure stage)
Max Pressure: 3000 PSI
Max Speed: 3600 RPM
Rotation: Clockwise (CW)
Shaft: 1/2" diameter x 1-1/2" length, keyed
Mounting Pattern: 4-bolt (USA Standard 4F17)
Unloader Valve Adjustment Range: 400–900 PSI
Overhung Shaft Load: Up to 90 lbs
Filtration Requirement: 25 micron
Inlet Port: 1" OD Hose Barb
Outlet Port: 1/2" NPT
Dimensions: 5-1/4" x 5-1/8" x 3-3/8"
Key Features:
Dual-Stage Efficiency – Automatically switches between low-pressure high-flow and high-pressure low-flow modes to optimize performance
Robust Construction – Built to withstand 3000 PSI and support up to 90 lbs of overhung shaft load
Flexible Unloader Range – Adjustable unloader valve (400–900 PSI) allows for customized system control
Reliable Performance – Designed for consistent speed up to 3600 RPM under demanding workloads
Easy Integration – Standard 4F17 bolt pattern and keyed shaft ensure hassle-free installation
Clean Operation – 25-micron filtration compatibility helps prevent system contamination and extends service life
Why Choose This Hydraulic Pump?
High Output, Compact Size – Get more flow and pressure in a smaller footprint
Ideal for Log Splitters & Industrial Hydraulics – Commonly used in 2-stage systems for rapid actuation
Easy Replacement – Compatible with many standard mounting and shaft configurations
Reliable Under Load – High shaft support and rugged internals extend operating lifespan
Versatile Performance Range – Excellent balance between high-speed productivity and powerful pressure delivery
| Brand: | FridayParts |
| Compatible Model Brand: | For OTHER BRAND |
| Replacement Part Number: | 9-7503-11,9750311 |
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