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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Features and Specifications
| Fuel | Gas-Powered |
|---|---|
| Handling | Wheelbarrow |
| Water | Cold (140°F max.) |
| PSI | 3300 |
| GPM | 2.5 |
| Cleaning Units | 8250 |
| Engine | 193cc 6.5 HP Honda GX200 OHV 4-stroke |
| Pump | CAT 4DNX Triplex |
| Frame | Steel |
|---|---|
| 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 |
| Hose storage | Hooks |
| Dimensions (L x W x H) | Approx. 40.3 x 26 x 23.8 in |
|---|---|
| Weight | 95 lbs |
| Pressure control | Valve |
| Wheels | 2 wheels, ⌀10", never flat |
| Included accessories | Wand, spray gun, high pressure hose, soap hose, 4 nozzles |
| Security | Low oil, trigger lock and thermal relief valve |
| Emissions | CARB, EPA |
| 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.
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 heavy duty, commercial pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:
- overall cleaning of hard surfaces, washing vehicles, and prepping surfaces for painting
- delicate surface cleaning, andbroad area cleaning with reduced pressure
- applying detergents or chemicals, and rinsing surfaces afterward
The following sections will present you in detail its power characteristics and design, its main features and all the additional features it has to offer.
Power
Its triplex pump, which utilizes a 193cc (6.5 hp) engine, may deliver a pressure of up to 3300 PSI (almost 55 times more than a standard garden hose) and a flow of up to 2.5 GPM. Corresponding to these values is a cleaning power of 8250 Cleaning Units.
Initiating the Honda GX200 engine of this gas pressure washer is achieved through a classic pull-start process.
Fuel for the pressure washer is housed in a steel tank capable of holding up to 0.8 gallon of gasoline.
Design & Handling
The wheelbarrow design of the NorthStar 157123 offers enhanced mobility and stability, making it ideal for navigating uneven terrain and ensuring steady operation during heavy-duty cleaning tasks. Guaranteeing longevity, the robust steel frame offers stability and protects internal components, even when subjected to demanding tasks. The handle adds to the 157123 convenience of transport.
At 95 lbs, we can't really say that the unit is lightweight, and manually lifting or transporting it could be a significant challenge for users, especially if they need to move it frequently or navigate over uneven terrain. Its 193cc Honda GX200 engine, the triplex pump and steel frame are mainly responsible for its heavy weight. However, the incorporation of two 10" never-flat wheels makes navigating the 157123 less cumbersome, even on uneven terrain.
Main Features
The NorthStar 157123 comes with a spray gun, a wand, a pressure hose, 4 nozzles and a detergent injection feature, which are detailed below.
- Soap injection: Despite the absence of a soap tank, detergent supply is facilitated through the use of a siphon hose. The NorthStar 157123 has an automatic soap dilution mechanism, which dilutes the detergent using a 15:1 ratio. The pressure washer automatically dispenses and mixes the detergent with the water when a soap nozzle is attached.
- Pressure hose: With a set of convenient hooks, the unit offers a practical solution for maintaining workspace order, allowing the included 50 ft ⌀3/8" high-pressure hose to be neatly stored when idle.
- Spray gun and wand: A side hook allows for an easy storage of the included classic ergonomic spray gun and its wand.
- Nozzles: Refer to the table below for details on the 4 included nozzles and their recommended surface applications.
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: With the NorthStar 157123's handy storage area, you’ll always have all the necessary nozzles and accessories at hand and thus, you’ll be fully prepared for any 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: Included with the NorthStar 157123 are also the owner's manual (opens in a new tab) and some basic documentation to get you promptly started, along with several accessories, such as pressure hose, soap hose, spray gun and wand.
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, a device which can produce up to 3300 PSI, is on the lower end of the pressure spectrum, among the gas-powered pressure washers in the $825-900 price range. If you're seeking the strongest water stream, look no further than the Westinghouse WPX4400, which delivers an impressive 4400 PSI.
- This washer, with a GPM of 2.5 (gallons per minute) has a somewhat lower water flow value compared to devices in its price range. If being able to rinse away debris as efficiently as possible is your priority, one of the products with the highest GPM in this price range is the Westinghouse WPX4400, with 4.2 GPM.
- The 157123's Cleaning Units, 8250 CU (PSI X GPM), fall into the lower end when compared to gas-powered devices of similar price. If you are after the highest overall cleaning power, the Westinghouse WPX4400 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
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.



