NorthStar 157123 - 3300 PSI 2.5 GPM Gas Pressure Washer With Honda Engine
The NorthStar 157123 is a gas-powered pressure washer offering a maximum water pressure of 3300 PSI and flow of 2.5 GPM. (Read full specs)
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Description
Equipped with a Honda GX200 engine, this model provides quiet, reliable performance and durability for blasting through mud, dirt and debris faster and more easily at home or jobsites — great for lawn and garden equipment, heavy-duty machinery, driveways, parking lots, patios, office buildings and much more.
Zoom on the NorthStar 157123
In a nutshell, the NorthStar 157123 is a commercial pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:
- general cleaning of hard surfaces , washing vehicles, and preparing surfaces for painting
- soft cleaning of delicate surfaces, and gentle cleaning for larger areas with low pressure
- applying detergents or chemicals, and rinsing surfaces afterward
Ahead are presented its power characteristics and design, its main features and any other additional features.
Power
Powered by a 193cc (6.5 hp) engine, its triplex pump can deliver a pressure of 3300 PSI (around 55 times more than a standard garden hose) and a flow of up to 2.5 GPM (values claimed by the manufacturer). With these values combined, the NorthStar 157123 boasts a cleaning power of 8250 Cleaning Units.
To start the Honda GX200 engine of this gas-powered washer, users employ the familiar pull-start technique.
Fuel for the pressure washer is housed in a steel tank capable of holding up to 0.8 gallon of gasoline.
Design & Handling
With its wheelbarrow-inspired design, the NorthStar 157123 aims for excellent mobility and stability, enabling effortless maneuvering and dependable performance across diverse environments. Built to endure, the steel frame ensures the assembly's longevity by providing stability and safeguarding internal components under all working conditions. The handle adds to the 157123 convenience of transport.
Tipping the scales at 95 lbs, this unit's weight presents a notable challenge for users, especially when it comes to lifting and moving it, particularly over uneven ground. The main contributors to its weight are its 193cc Honda GX200 engine, the triplex pump and steel frame. However, the incorporation of two 10" never-flat wheels makes navigating the 157123 less cumbersome, even on uneven terrain.
Main Features
Along with the NorthStar 157123 itself, the package also includes a spray gun, a wand, a pressure hose, 4 nozzles and a detergent injection feature, which are discussed in further detail below.
- Soap injection: Even without a built-in soap tank, the device relies on a siphon hose to provide detergent. Utilizing an automatic soap dilution mechanism, the NorthStar 157123 accurately mixes detergent to the defined ratio of 15:1, enhancing cleaning efficiency. Upon connecting a soap nozzle, the pressure washer takes over the task of seamlessly combining the detergent with the water flow.
- Pressure hose: With a set of convenient hooks, the unit provides a convenient way to store the included 50 ft ⌀3/8" high-pressure hose when not in use, keeping it organized and readily accessible.
- Spray gun and wand: Both the classic ergonomic spray gun and its wand may be conveniently stored in a side hook.
- Nozzles: The table below shows you the 4 included nozzles and the surfaces they're the most appropriate for.
15° | 25° | 40° | Soap | |
|---|---|---|---|---|
| Concrete, brick, masonry | ||||
| Siding, gutters, house | ||||
| Fencing, deck, patio | ||||
| Lawn equipment, boat, RV |
Important: The nozzle shapes shown above are for illustrative purposes and may vary. Symbols denote suitability, with a indicating 'Not recommended,' a for 'Suitable,' and an for 'Use with caution.'
Other Features
- Onboard storage: Stay prepared for any job with NorthStar 157123's handy storage area, which allows you to neatly store any nozzles and accessories which you may need for the job.
- Safety: Safety of operation is enhanced by a thermal relief valve (which helps to prevent internal pump damage), a trigger lock mechanism (which prevents accidental operation) and a low oil protection.
- Accessories: On top of an owner's manual (opens in a new tab) and the usual documentation to get you swiftly started, the NorthStar 157123 also comes with pressure hose, soap hose, wand and spray gun.
Product Video
The NorthStar 157123's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the NorthStar 157123 compare to similarly priced pressure washers.
- The NorthStar 157123 and its 3300 PSI, ranks amongst gas-powered pressure washers with a comparably low pressure output, considering the units that cost between $875 and $1000. For those prioritizing maximum water stream power, consider the Simpson PS60843, boasting 4400 PSI, as a standout performer in this price range.
- When measured against items within the price range mentioned earlier, this washer, with its 2.5 GPM, falls on the lower end of achievable water flow rates. If your priority is efficient debris removal, consider one of the products with the highest GPM in this price range, such as the Powerhorse 115179, boasting 4.2 GPM.
- At 8250 Cleaning Units (PSI X GPM), the 157123 ranks on the lower side of cleaning power among devices with similar pricing and fuel type. If you are after the highest overall cleaning power, the Powerhorse 115179 with its 18480 Cleaning Units is one of the products that can achieve the highest cleaning efficiency in this price range.
Price comparison
As you can see from these interactive charts, when compared to other gas-powered washers between 8000 and 8500 Cleaning Units, the NorthStar 157123 is on the expensive side of the price range.
While certainly not the cheapest of its cleaning power range, purchasing it could most likely also mean enjoying the reliability of a high-end product.
The bottom line
- 10 year (limited) warranty
- Triplex pump
- Honda engine
- Designed to be stable
- Good range of nozzles included
- Automatic detergent dilution
- Onboard storage
- Several security features
- On the expensive side
- No soap tank
- Low PSI for the price
- Low GPM for the price
- Low CU for the price
Features and Specifications
| Fuel | Gas-Powered |
|---|---|
| Engine | 193cc 6.5 HP Honda GX200 OHV 4-stroke |
| Pump | CAT 4DNX Triplex |
| Water | Cold (140°F max.) |
| PSI | 3300 |
| GPM | 2.5 |
| Cleaning Units | 8250 |
| Pressure control | Valve |
| Frame | Steel |
|---|---|
| Handling | Wheelbarrow |
| Wheels | 2 wheels, ⌀10", never flat |
| Weight | 95 lbs |
| Dimensions | Approx. 40.3 x 26 x 23.8 in (L x W x H) |
| Hose storage | Hooks |
| Soap injection | Via siphon hose |
|---|---|
| Soap dilution | 15:1 |
| Nozzles | 15°, 25°, 40°, Soap |
| Quick connect nozzles | Yes |
| Onboard storage | Yes |
| Hose | 50 ft, ⌀3/8 |
| Security | Low oil, trigger lock and thermal relief valve |
|---|---|
| Emissions | CARB, EPA |
| Included accessories | Wand, spray gun, high pressure hose, soap hose, 4 nozzles |
| Warranty | 10 years |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About NorthStar
The NorthStar brand of outdoor power equipment is owned and distributed by the Northern Tool company, which was founded in 1981 in Minnesota, USA. The brand includes log splitters, generators, pressure washers, and air compressors. Though many of the components are manufactured in Northern Tool’s factory in China, NorthStar pressure washers are engineered, assembled, and tested in America, and powered by Honda engines. They include hot water, cold water, and soft-wash systems, along with many accessories. NorthStar brand products make up a large percentage of Northern Tool's product line.
Warranty Information
The NorthStar 157123 is covered under a warranty for up to 10 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of NorthStar pressure washers, please contact the NorthStar Customer Support: 1-800-270-0810.



