This thing blasts through years of grime on my concrete driveway. The engine starts easily once warmed up and the pressure is more than enough for tough jobs.
Powerhorse 750147 Gas Pressure Washer
The Powerhorse 750147 is a robust, gas-powered pressure washer designed for demanding cleaning tasks around the home, farm, or job site.

Full specification
Powerhorse
Powerhorse 750147 Gas Pressure Washer
- High 3400 PSI output
- Durable triplex pump
- Easy mobility with tires
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Where it lands
Verdict
The Powerhorse 750147 is a robust, gas-powered pressure washer designed for demanding cleaning tasks around the home, farm, or job site. Its 3400 PSI/3.0 GPM output combined with a durable triplex pump makes it a strong contender for users who need serious cleaning power beyond what electric washers can offer. While it's heavier and louder than smaller electric units, its build quality and performance justify the trade-off for heavy-duty use.
Key features
What you actually get
3400 PSI at 3.0 GPM high-performance output
OHV horizontal shaft gas engine for reliable power
Triplex plunger pump with brass head for durability
Onboard detergent injection system
Adjustable spray nozzle plus 5 quick-connect tips
12-inch pneumatic never-flat tires for mobility
Powder-coated steel frame for rust resistance
Strengths and trade-offs
Where it wins, where it costs you
+Pros
- Strong 3400 PSI output tackles tough grime and stains
- Durable triplex pump built for long service life
- Easy to maneuver on job sites with large tires
- Detergent tank simplifies soap application
- Solid steel frame resists corrosion over time
- Multiple nozzle tips add versatility for different tasks
–Cons
- Heavier than electric models, harder to lift into trucks
- Engine can be difficult to start when cold
- Somewhat loud during operation compared to electric units
- Requires regular gas and oil maintenance
- No onboard hose reel included
Full review
Our test notes in full
The Powerhorse 750147 pressure washer is a gas-powered cleaning machine built for anyone who needs serious cleaning power without the limitations of an electric cord or a garden hose tether to a wall outlet. Powered by a rugged gas engine, this unit delivers the kind of high-pressure output that makes quick work of driveways, siding, decks, fences, patios, and heavy equipment caked in grime. Unlike smaller electric washers meant for light-duty touch-ups, the 750147 is designed with homeowners, contractors, and property maintenance crews in mind, offering the muscle to blast away years of dirt, mold, mildew, and stubborn stains in a fraction of the time it would take with a hose and scrub brush.
At the heart of this pressure washer is a dependable engine that produces strong PSI and GPM figures, giving users a combination of pressure and water flow that translates into fast, efficient cleaning across large surface areas. The frame is built with a durable steel construction that can handle the vibration and torque of gas-engine operation, while the wheels are sized to roll smoothly over gravel, grass, and uneven concrete, so moving the unit around a jobsite or backyard doesn't become its own chore. The spray gun and wand are engineered to withstand high-pressure output without excessive kickback, and the assembly typically includes multiple nozzle tips, allowing users to switch between a concentrated jet for tough stains and a wider fan spray for general rinsing.
Because it runs on gasoline rather than electricity, the Powerhorse 750147 offers the freedom to work far from any power source, making it a practical choice for farms, rural properties, construction sites, and anywhere else an electrical outlet isn't within easy reach. Maintenance follows the same straightforward routine as other small gas engines, meaning regular oil changes, air filter checks, and fresh fuel are the main things standing between the owner and years of reliable performance. For those who need a pressure washer that can handle heavy-duty tasks day after day, this model provides the kind of raw power, mobility, and independence from cords and outlets that electric washers simply cannot match.
Owner voices
What buyers report after months of use
Works great for cleaning siding and patio furniture. It's definitely heavy to move around, but the wheels help a lot. Would recommend for anyone with serious cleaning needs.
Does the job well and the detergent tank is handy for soap application. It's louder than I expected, so I use ear protection, but overall very satisfied with the cleaning power.
I use this to clean tractors and equipment on the farm. The triplex pump feels built to last, and the pressure output handles caked-on mud with ease.
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