Aftermarket Replacement for DHT 107133 • 16 GPM • 2-Stage Design • 1/2" Keyed Shaft • Fits DHT 25-Ton 107036 & 30-Ton 107079

Restore dependable hydraulic performance to your Dirty Hand Tools (DHT) log splitter with this 16 GPM, 2-stage aftermarket hydraulic replacement pump. Designed as a replacement option for the original DHT part number 107133, this pump is intended for the following Dirty Hand Tools log splitter models:

• 25-Ton DHT Log Splitter – Model 107036

• 30-Ton DHT Log Splitter – Model 107079

With Dirty Hand Tools no longer manufacturing log splitters, finding compatible replacement parts can be challenging. This 16 GPM hydraulic pump offers a practical solution for owners looking to repair their existing equipment without replacing the entire log splitter.

Featuring a two-stage HI/LO hydraulic design, a 1/2-inch keyed drive shaft, 1-inch suction inlet, and 1/2-inch pressure outlet, the pump provides fast hydraulic cylinder movement under lighter loads while automatically transitioning to higher pressure when greater splitting force is needed.

Key Features & Benefits

• Aftermarket Replacement for DHT 107133: Designed as a replacement option for the original hydraulic pump used on select Dirty Hand Tools 25-ton and 30-ton log splitters.

• Fits DHT 25-Ton Model 107036: A replacement pump option for owners looking to repair or maintain their discontinued Dirty Hand Tools 25-ton log splitter.

• Fits DHT 30-Ton Model 107079: Provides a replacement option for the original DHT 107133 hydraulic pump used on the 30-ton model.

• 16 GPM Two-Stage Hydraulic Performance: Delivers high hydraulic flow during lighter loads and automatically transitions to high-pressure operation when additional splitting force is required.

• Efficient HI/LO Pump Design: Combines fast hydraulic cylinder movement with the high-pressure performance needed for demanding log-splitting applications.

• 1/2-Inch Keyed Drive Shaft: Features a keyed shaft designed to connect to a compatible pump-side drive coupler.

• 1-Inch Suction Inlet: Provides an appropriately sized inlet for hydraulic fluid supplied from the log splitter's reservoir.

• 1/2-Inch Pressure Outlet: Accommodates a compatible hydraulic pressure hose connection.

• Up to 4,000 PSI Published Maximum Pressure: Built for demanding hydraulic applications. Always operate within the pressure limits specified by the pump and log splitter manufacturers.

• Durable Hydraulic Gear Pump Construction: Features an aluminum HI/LO pump section with cast-steel end plates for dependable performance and durability.

Replaces Dirty Hand Tools Part Number

DHT 107133 – 16 GPM, 2-Stage Hydraulic Pump

This aftermarket hydraulic pump is being offered as a replacement for the original DHT 107133 used on the following Dirty Hand Tools models:

Replacement Pump SKU: WSD31-253 Pump Manufacturer Model: GP-CBN-160

Before ordering,  compare the shaft, mounting configuration, hydraulic connections, and required rotation with your existing pump.

Two-Stage Hydraulic Pump Performance

A two-stage hydraulic pump is particularly well suited for gas-powered log splitters because it delivers both fast cylinder movement and high-pressure splitting capability.

Stage 1 – High Flow / Low Pressure

During lighter splitting conditions and cylinder travel, the pump provides higher hydraulic flow to move the cylinder more quickly.

• Published first-stage flow: 13 GPM

• Published first-stage pressure: 650 PSI

Stage 2 – Low Flow / High Pressure

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

• Published second-stage flow: 3 GPM

• Published second-stage pressure: 2,500 PSI

This automatic transition allows the hydraulic system to deliver increased splitting force without requiring an oversized gasoline engine.

Quick Specifications

Original DHT Pump & Coupler Configuration

The Dirty Hand Tools 25-ton and 30-ton parts documentation identifies the following pump assembly components:

The existing pump coupler, spider, and mounting hardware should be inspected for wear or damage during installation.

Replacement L090-style couplers are also available from Wood Splitter Direct. See our DHT replacement parts collection for additional components.

Pump Rotation

This hydraulic pump features clockwise shaft rotation when viewed from the pump shaft end.

Before installation, confirm that the engine drive rotation matches the required pump rotation. Operating the pump in the wrong direction may prevent proper hydraulic fluid circulation and damage the pump.

Package Contents

- 1 × 16 GPM two-stage aftermarket hydraulic pump (GP-CBN-160)

Engine, hydraulic hoses, mounting bracket, couplers, and additional installation hardware are not included.

Important Compatibility Information

This is an aftermarket replacement hydraulic pump and is not manufactured or endorsed by Dirty Hand Tools.

This pump is being marketed as a replacement option for DHT part number 107133 on these Dirty Hand Tools models:

• 25 Ton – Model 107036

• 30 Ton – Model 107079

Before purchasing, verify your log splitter's model number and compare the existing pump's mounting dimensions, drive shaft, coupler, hydraulic fittings, engine horsepower, and rotation.

Not all Dirty Hand Tools log splitters use the same hydraulic pump. Replacement compatibility should be determined by the original pump configuration rather than splitting tonnage alone.

Trademark Disclaimer

Dirty Hand Tools and DHT are trademarks of their respective owner. They are used only to identify the equipment and replacement-part application. This aftermarket part(s) is not manufactured, sponsored, or endorsed by Dirty Hand Tools.