Diesel Hydraulic Power Units Unit
Diesel Hydraulic Power Units
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Diesel Hydraulic Power Units
D-25S12-L7-S
12 GPM Diesel Hydraulic Power Unit — 25 HP, Skid
25 HP · Diesel · Skid frame · For rescue tooling & high-pressure applications
Call for pricing & availability
Price excl. tax. Free Freight, US Lower 48
Flow rate
12 GPM
Working pressure
2,500 PSI
Horsepower
25 HP
Fuel / power
Diesel Hydraulic Power Units · Caterpillar
Frame
Skid
Dry weight
780 lb
Call for pricing & availability
1-year warranty
US service network
US-based support
Free freight — US lower 48
Overview
The HydraTough D-25S12-L7-S is a 12 GPM diesel hydraulic power unit specially built for Caterpillar large mine truck rescue. The power unit uses the hydraulic reservoir from the truck being towed to provide 12 GPM of hydraulic flow at 2,500 PSI, along with a 24V DC power connection. It provides flow to operate brakes, steering, and dump functions, as well as 24V DC power to operate electrical controls.
Model decoder
HydraTough model numbers identify the unit's configuration — fuel, horsepower, pump setup, flow and frame.
D-25S12-L7-S
- D
- Diesel engine
- 25
- 25 HP
- S
- Single circuit
- 12
- 12 GPM
- L7
- Skid flow config
- S
- Skid frame
Technical specifications
Model number
D-25S12-L7-S
Fuel type
Diesel Hydraulic Power Units
Working pressure
2,500 PSI
Horsepower
25 HP
Engine
Caterpillar
Circuit type
Single circuit
Frame
Skid
Dry weight
780 lb
Relief valve setting
2,600 PSI
Engine / motor model
C1.1 Tier 4
Flow configuration
Fixed
Dimensions (L×W×H)
63" × 28" × 41.5"
Hydraulic fluid capacity
Remote Reservoir (vehicle reservoir)
Fuel tank capacity
6.6 gal
Max RPM
2,800
Coupling type
Caterpillar 6V Quick Disconnect
Warranty period
1 year
*Price subject to change. Please contact HydraTough for accurate pricing and stock availability.
Product information
This diesel hydraulic power unit is built for heavier, stationary, and continuous-duty work. The skid frame is made to be lifted into place by crane or forklift and run hard on site. Compare flow rate, horsepower, and working pressure against your tools to confirm fit.
Applications
Caterpillar mine truck rescue
Designed to be serviced
Every HydraTough unit is built for straightforward field servicing. Parts are stocked in the US. Manuals are free — no account or registration required.
How we stack up
HydraTough vs typical competitors.
Feature / benefit
HydraTough
Typical competitors
Flow performance
HydraTough
Tested to hit rated GPM at rated PSI
Typical competitors
Often rated on paper, not verified under load
Component access / maintenance
HydraTough
Open access to hydraulic components for easy maintenance
Typical competitors
Components frequently enclosed, harder to service
Fuel tank
HydraTough
Large EPA-compliant 5-gallon tank (Prowler frame)
Typical competitors
Smaller tanks, more frequent refueling
Lead time
HydraTough
Ships in 1–2 business days on standard models
Typical competitors
Often multi-week lead times
Customization
HydraTough
Custom units built to spec available upon request
Typical competitors
Standard configurations only
Reviews
What crews say after the job.
FAQs
Frequently asked questions
Still not sure if this is the right unit? Our US-based team can help you match it to your tools.
Talk to usBuilt for rescue & specialty tooling, hydraulic breakers, oilfield.
D = diesel engine, 25 = 25 hp, S = single circuit, 12 = 12 GPM, L7 = skid flow config, S = skid frame.
This is a skid-mounted unit (780 lb), built to be lifted into place by crane or forklift rather than wheeled.
Availability is confirmed at order for this specialty unit. In-stock units ship from US warehousing in 1–2 business days.
Standard units are direct purchase. For custom specifications, visit our custom units page (/products/custom).
Yes, quick connect couplers can be removed or replaced with customer specified couplers.
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1,000 PSI
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