Bucher Hydraulics 12V Single-Acting Hydraulic Pump for Dexter
Bucher Hydraulics 12V DC hydraulic power unit manufactured specifically for Dexter single-acting power-up / gravity-down applications. Built with a 6-quart translucent poly reservoir, integrated 12V solenoid, SAE #6 outlet port, and 15-foot corded remote pendant.
Overview
The CH155372 is a Bucher Hydraulics 12-volt DC hydraulic power unit manufactured specifically for Dexter hydraulic systems. This commercial-grade single-acting pump assembly is engineered for power-up / gravity-down hoist applications and is commonly used on dump trailers, dump trucks, liftgates, and material-handling equipment where the existing setup matches the voltage, porting, reservoir size, mounting orientation, and hydraulic action type. The unit arrives pre-assembled for horizontal installation and includes a translucent 6-quart reservoir for easier fluid-level monitoring.
R&P Service Insight
A hydraulic pump is not just a replacement box — it has to match the trailer’s actual hydraulic circuit. This Bucher Hydraulics unit is built for Dexter single-acting applications, which means it is intended for powered lift with gravity return.
- Manufacturer Clarity: Bucher Hydraulics is the manufacturer of this hydraulic power unit, produced specifically for Dexter applications under part number CH155372.
- System Match: Best suited for compatible Dexter-style power-up / gravity-down hydraulic hoist systems.
- Reservoir Volume: The 6-quart reservoir provides the fluid capacity commonly needed for larger dump trailer hoist travel.
R&P Knowledge Hub
Compatibility: Designed for 12V DC single-acting hydraulic systems requiring power-up / gravity-down operation, horizontal mounting, and SAE #6 outlet porting.
Vehicle / System Fit: Manufactured by Bucher Hydraulics specifically for Dexter hydraulic applications and commonly used on compatible dump trailers, dump trucks, liftgates, hoists, and material-handling equipment.
Installation Notes: Confirm single-acting operation, 12V power supply, reservoir size, port size, mounting orientation, electrical cable sizing, remote connection, and hydraulic fluid requirements before installation.
Performance Insight: The 6-quart translucent reservoir helps support full hoist operation while making fluid-level inspection faster, cleaner, and more reliable during routine trailer service.
Brand & Fitment Note
Manufacturer: Bucher Hydraulics.
Dexter Part Number: CH155372.
Product Identity: This is a Bucher Hydraulics hydraulic power unit manufactured specifically for Dexter hydraulic applications.
Application Reference: Dexter, dump trailer, hoist, liftgate, and equipment references describe the intended system application where specifications match.
Before Ordering: Verify voltage, pump action type, reservoir capacity, port size, pressure requirement, flow requirement, mounting orientation, cable routing, remote style, and hydraulic hose connection before installation.
R&P Repair Insight
Most hydraulic pump replacement issues come from mismatched action type, incorrect porting, low voltage, undersized battery cables, weak batteries, contaminated fluid, or a reservoir that cannot supply enough fluid for full cylinder extension.
- Single-Acting Check: This pump is for compatible power-up / gravity-down systems. Do not use it as a substitute for a double-acting hydraulic circuit unless the system has been properly reconfigured.
- Port & Hose Check: Match the outlet port to the existing hose and fitting setup. This unit uses standard SAE #6 / 9/16"-18 UNF O-ring port reference information.
- Electrical Check: Hydraulic power units require a strong 12V battery, clean grounds, and properly sized cables to prevent voltage drop, slow lift, solenoid trouble, and motor strain.
Features
Bucher Hydraulics Built for Dexter
Manufactured by Bucher Hydraulics specifically for Dexter hydraulic applications, giving this pump a clear manufacturer and application identity.
Single-Acting Power-Up / Gravity-Down Operation
Engineered for hydraulic hoist systems that raise under 12V hydraulic power and lower by gravity return.
Translucent 6 Quart Poly Reservoir
Heavy-duty see-through plastic reservoir allows quick fluid-level monitoring while providing 6 quarts / 1.5 gallons of hydraulic fluid capacity.
15 Foot Corded Remote Pendant
Includes a 2-button wired remote pendant with extended reach so the operator can control lift and lower functions from a safer working position.
Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | CH155372 |
| Manufacturer | Bucher Hydraulics |
| Manufactured For | Dexter hydraulic applications |
| Product Type | 12V DC hydraulic power unit / hydraulic pump assembly |
| Operation Type | Single-acting / power-up / gravity-down |
| Motor Voltage | 12V DC |
| Reservoir Capacity | 6 quarts / 1.5 gallons |
| Reservoir Material | Translucent polyethylene / plastic reservoir |
| Maximum Relief Pressure | 3,200 PSI |
| Flow Rate | Approximately 2.0 gallons per minute / GPM |
| Mounting Orientation | Horizontal installation |
| Outlet Port Size | Standard SAE #6 / 9/16"-18 UNF O-ring port reference |
| Remote Control | 2-button wired pendant with 15 ft. cord |
| Solenoid | Integrated heavy-duty 12V DC start solenoid |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | 12V hydraulic dump trailer, dump truck, hoist, liftgate, and material-handling equipment systems |
| Primary Fit | Dexter-compatible single-acting power-up / gravity-down hydraulic applications |
| Manufacturer Application | Bucher Hydraulics product manufactured specifically for Dexter hydraulic systems |
| Mounting Style | Horizontal installation |
| Important Fitment Note | Match by system type, voltage, reservoir size, port style, hose connection, pressure requirement, remote style, and mounting orientation before ordering. |
Hydraulic Fluid Guidance
| Condition / Detail | Recommendation |
|---|---|
| General Use | Use premium hydraulic oil with anti-wear, rust and oxidation inhibitors, foam inhibitors, and good stability. |
| Example Oils | Chevron Rando HDZ, Mobil DTE 10, Mobil DTE 20 series, AMSOIL, and Shell Tellus are common hydraulic oil examples. |
| Normal Conditions | Dexron III automatic transmission fluid may be acceptable under normal operating conditions. |
| Extreme Cold | Aviation hydraulic oils such as Valvoline ROYCO series or Mobil Aero HF / HFA may be used for prolonged extreme cold environments. |
| Seal Compatibility | Do not use biodegradable hydraulic fluid with Buna seals. Biodegradable hydraulic fluid is compatible with optional Viton seals. |
| Important Warning | Do not mix hydraulic fluids. |
Temperature Reference
| Ambient Temperature | Recommended Fluid Viscosity |
|---|---|
| -20°F to +32°F | ISO viscosity grade 15 |
| +14°F to +120°F | ISO viscosity grades 22, 32, or ATF Dexron III |
| Service Note | Cold weather, weak batteries, undersized cables, and thick fluid can reduce pump speed and lifting performance. |
Battery Cable Sizing Reference
| Positive & Ground Cable Length | Recommended Cable Gauge | Approx. Cable O.D. |
|---|---|---|
| 1–2 ft. | 4 gauge | 0.43 in. |
| 3–4 ft. | 2 gauge | 0.49 in. |
| 5–7 ft. | 1 gauge | 0.56 in. |
| 8–9 ft. | 1/0 gauge | 0.61 in. |
| 10–12 ft. | 2/0 gauge | 0.66 in. |
| 13–15 ft. | 3/0 gauge | 0.72 in. |
| 16–19 ft. | 4/0 gauge | 0.78 in. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Bucher Hydraulics 12V DC single-acting hydraulic power unit manufactured for Dexter |
| 1 | Translucent 6-quart polyethylene hydraulic reservoir |
| 1 | Integrated 12V DC motor and hydraulic pump assembly |
| 1 | Integrated heavy-duty 12V start solenoid |
| 1 | 2-button wired remote pendant with 15 ft. cord |
| Included | Pre-assembled horizontal pump configuration for compatible power-up / gravity-down Dexter hydraulic systems |
