Heavy-Duty 19 GPM Hydraulic Pump for Faster Log Splitting & Dependable Performance

Restore or upgrade your log splitter's hydraulic performance with this 19 GPM 2-Stage Hydraulic Log Splitter Pump. Designed for high-flow hydraulic applications, this replacement pump combines rapid cylinder movement with the high-pressure capability needed to split tough, stubborn logs.

Featuring an efficient two-stage HI/LO design, the pump automatically transitions between high-flow, low-pressure operation and low-flow, high-pressure operation based on hydraulic resistance. This allows compatible log splitters to achieve faster cycle times without requiring an excessively large gasoline engine.

With a published maximum pressure rating of 4,000 PSI, a 1/2-inch keyed drive shaft, and a 90-degree suction fitting included, this hydraulic gear pump is an excellent option for repairing, replacing, or upgrading compatible log splitter hydraulic systems.

The pump is also suitable for custom hydraulic equipment, including presses, compactors, and clamping systems.

Key Features & Benefits

• High-Flow 19 GPM Hydraulic Performance: Delivers up to 19 gallons per minute at 3,600 RPM to help provide faster hydraulic cylinder movement and improved cycle times on properly matched log splitters.

• Efficient Two-Stage HI/LO Pump Design: Automatically transitions between high-flow, low-pressure operation and low-flow, high-pressure operation as hydraulic resistance increases.

• Up to 4,000 PSI Maximum Pressure Rating: Designed for demanding hydraulic applications requiring substantial pressure capability. Actual operating pressure is controlled by the hydraulic system and its components.

• 16.5 GPM First-Stage Flow: Provides higher hydraulic flow at lower pressures, helping move the splitting wedge quickly during lighter loads and cylinder travel.

• 3.6 GPM Second-Stage Flow: Automatically transitions to lower-flow, high-pressure operation when additional splitting force is required.

• OEM-Grade Replacement Pump: Suitable for many log splitter replacement and repair applications, provided the original pump specifications, mounting configuration, and hydraulic system requirements match.

• 90-Degree Suction Fitting Included: Features a right-angle hydraulic suction fitting to simplify hose routing and installation in compatible applications.

• 1/2-Inch Keyed Drive Shaft: Equipped with a 1/2-inch drive shaft and 1/8-inch Woodruff key configuration for use with a compatible flexible drive coupler.

• 1-Inch Suction Inlet: Provides a large hydraulic fluid inlet to accommodate the oil flow needed for high-volume operation.

• 1/2-Inch NPT Pressure Outlet: Uses a standard female NPT hydraulic pressure connection for compatible high-pressure hydraulic fittings.

• Designed for Gas Engines 9.5 HP & Larger: Intended for direct-drive applications using a properly matched horizontal-shaft gasoline engine.

• Clockwise Pump Rotation: Features clockwise rotation as specified by the manufacturer, viewed from the engine toward the pump.

• Compact 4-Bolt Mounting Design: Features a standard four-hole mounting configuration with a 2.83-inch bolt circle and 2-inch mounting-hole spacing.

• Open-Center Hydraulic System Compatibility: Designed specifically for use with open-center hydraulic circuits commonly found on gas-powered log splitters.

• Durable Hydraulic Gear Pump Construction: Built with a sturdy aluminum pump housing and precision hydraulic components for dependable service.

• 6-Month Manufacturer's Warranty: Backed by a six-month manufacturer's warranty, subject to applicable warranty terms and conditions.

How the Two-Stage Hydraulic Pump Works

A two-stage hydraulic pump offers an efficient combination of hydraulic speed and splitting power by automatically adjusting its operating characteristics according to the resistance encountered.

Stage 1 – High Flow / Low Pressure

During normal cylinder travel and lighter splitting applications, the pump operates in its high-flow mode.

• First-stage flow: 16.5 GPM

• Published first-stage pressure: 650 PSI

• Helps provide faster cylinder extension and retraction

• Ideal for low-resistance movement and lighter splitting operations

Stage 2 – Low Flow / High Pressure

When the splitting wedge encounters increased resistance, the pump automatically transitions to its high-pressure mode.

• Second-stage flow: 3.6 GPM

• Published second-stage pressure: 2,500 PSI

• Provides increased pressure for splitting tougher wood

• Automatically returns to higher-flow operation when resistance decreases

This two-stage hydraulic design helps deliver fast cycle times while maintaining the high-pressure capability needed for demanding log-splitting applications.

Ideal for Log Splitter Repairs & Upgrades

This 19 GPM hydraulic replacement pump is designed for use in properly matched hydraulic systems and may be suitable for various log splitters using similar pump configurations.

Applications include:

• Gas-powered hydraulic log splitters

• Replacement of worn or damaged hydraulic pumps

• High-flow log splitter upgrades

• Custom-built hydraulic log splitters

• Hydraulic presses

• Hydraulic clamping equipment

• Compacting machinery

• Other compatible open-center hydraulic equipment

Important: Compatibility depends on the existing pump's drive shaft, rotation, mounting configuration, hydraulic port sizes, engine horsepower, and system requirements. This pump is not a guaranteed direct replacement for every log splitter.

Product Specifications

What's Included

• One 19 GPM two-stage hydraulic log splitter pump

• One 90-degree suction pickup fitting

Engine, pump mounting bracket, drive coupler, hydraulic hoses, pressure-side fittings, and installation hardware are not included unless otherwise specified.

Important Installation & Compatibility Information

Before purchasing this hydraulic replacement pump, verify the following specifications against your existing equipment:

• Engine horsepower is sufficient for the pump's flow and pressure requirements.

• Drive coupler accommodates a 1/2-inch keyed pump shaft.

• Pump rotation matches the required clockwise direction.

• Pump mounting configuration matches the existing mounting bracket.

• Hydraulic suction line accommodates a 1-inch inlet connection.

• Pressure line uses a compatible 1/2-inch NPT fitting.

• Hydraulic control valve is designed for an open-center system.

• Hydraulic reservoir, hoses, and other components are sized for the required flow and operating pressure.

Important: The pressure outlet uses NPT threads. Do not install an ORB-style O-ring fitting into the NPT port. Improper fittings can damage the pump housing or cause hydraulic leaks.

Frequently Asked Questions

What size engine is needed for this 19 GPM hydraulic pump?

The manufacturer specifies a minimum 9.5 HP gasoline engine with a compatible horizontal output shaft and direct-drive configuration. Engine requirements may vary based on operating pressure, RPM, and hydraulic load.

Can this 19 GPM pump make my log splitter faster?

Potentially, yes. A higher-flow hydraulic pump can reduce cylinder travel time when properly matched to the engine and hydraulic system. However, actual cycle time depends on cylinder size, engine RPM, hydraulic components, and operating conditions.

Does this pump automatically switch between high and low pressure?

Yes. The two-stage HI/LO design automatically changes operating modes based on hydraulic resistance. The high-flow stage supports faster cylinder movement, while the high-pressure stage provides greater force when the splitting wedge encounters tougher material.

Will this pump fit my existing log splitter?

This pump may fit many existing log splitters, but compatibility must be verified before ordering. Compare the original pump's drive shaft, rotation, mounting-hole spacing, hydraulic connections, flow rating, and engine requirements.

What is the maximum pressure rating?

The pump has a published maximum pressure rating of 4,000 PSI. However, this is the pump's maximum rating, not necessarily the appropriate operating pressure for your log splitter. The hydraulic system must be operated within the limits of its lowest-rated component.

Does the pump include the suction fitting?

Yes. A 90-degree right-angle suction fitting is included to help simplify installation and hydraulic hose routing.

Can this hydraulic pump be mounted vertically?

The pump can be mounted in vertical or horizontal orientations when the complete installation meets the manufacturer's requirements. It is intended for direct-drive operation with a compatible horizontal-shaft gasoline engine.

What hydraulic systems is this pump compatible with?

The pump is designed for open-center hydraulic systems. It should not be installed in a closed-center system without engineering verification of compatibility.

Does this pump include the engine coupler or mounting bracket?

No. The pump is supplied separately from the engine coupler and mounting bracket. These components may need to be reused from your existing equipment or purchased separately.

Is this pump suitable for a custom-built log splitter?

Yes. This 19 GPM two-stage hydraulic pump may be used in custom hydraulic log splitter builds when the engine, cylinder, control valve, reservoir, hoses, and couplers are properly sized and matched.

Why Choose This 19 GPM Hydraulic Log Splitter Pump?

Whether you're replacing a damaged hydraulic pump or building a custom log splitter, this 19 GPM two-stage hydraulic gear pump provides an effective combination of high hydraulic flow, automatic pressure adjustment, and durable construction.

Its efficient HI/LO design helps deliver faster cylinder movement under lighter loads while maintaining the pressure capability needed for demanding splitting applications.

Returns: A 25% restocking fee applies to unopened returned items. Customers are responsible for arranging and paying for return shipping.  Used items are not returnable.