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
The NorthStar 157123, a heavy duty, commercial pressure washer, gives its user an all-around versatile cleaning experience, topped off by the following features:
- comprehensive cleaning of hard surfaces, vehicle washing, and readying surfaces for painting
- soft cleaning of delicate surfaces, and gentle cleaning for larger areas with low pressure
- using cleaning solutions, and rinsing surfaces to remove residue
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.
Starting the Honda GX200 engine of this gas pressure washer involves using a conventional pull-start method.
The pressure washer's steel tank has a maximum capacity of 0.8 gallon for storing 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. 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.
Weighing in at 95 lbs, it's safe to say this unit isn't lightweight, which might pose difficulties for users when it comes to lifting and transporting, particularly over uneven surfaces. The major reasons for its heavy weight are its 193cc Honda GX200 engine, the triplex pump and steel frame. Nevertheless, with its two 10" never-flat wheels, users can manage the 157123 with less difficulty, even over 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: Though lacking a dedicated soap tank, the device ensures detergent supply via a siphon hose. The NorthStar 157123 includes an automatic soap dilution mechanism, allowing detergent to be diluted to the ratio of 15:1 with ease. The detergent is automatically mixed with the water flow by the pressure washer when a soap nozzle is connected.
- 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 enables you to easily store the included classic ergonomic spray gun and its wand.
- Nozzles: Below, you'll find a table outlining the 4 included nozzles and their recommended surfaces.
15° | 25° | 40° | Soap | |
|---|---|---|---|---|
| Concrete, brick, masonry | ||||
| Siding, gutters, house | ||||
| Fencing, deck, patio | ||||
| Lawn equipment, boat, RV |
Kindly note: The shapes of the nozzles depicted above are for illustrative purposes and may vary. Symbols indicate suitability, with a signifying 'Not recommended,' a for 'Suitable,' and an for 'Use with caution.'
Other Features
- Onboard storage: The NorthStar 157123 allows you to be always fully prepared, as it features a handy storage area, where nozzles and accessories can be stored.
- Safety: Safety of operation is enhanced by a low oil protection, a thermal relief valve (which helps to prevent internal pump damage) and a trigger lock mechanism (which prevents accidental operation).
- 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 spray gun, wand, soap hose and pressure hose.
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.
- With 3300 PSI, the NorthStar 157123 achieves a lower pressure when compared to similarly priced gas-powered pressure washers within the $775-900 range. If you're seeking the strongest water stream, look no further than the Simpson PS60843, which delivers an impressive 4400 PSI.
- When contrasted with devices in the aforementioned price bracket, this washer and its 2.5 GPM lie at the lower range of attainable water flow. For those prioritizing effective debris rinsing, one of the top products in this price range is the Westinghouse WPX4400, offering a high flow rate of 4.2 GPM.
- The 157123 ranks as below average in terms of Cleaning Units, compared to gas-powered devices in its price range, reaching only a value of 8250 CU (PSI X GPM). If prioritizing the highest overall cleaning power, the Westinghouse WPX4400 with its 18480 Cleaning Units may stand out for its exceptional cleaning efficiency among similarly priced units.
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 average side of the price range.
Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.
The bottom line
- In the expected price range
- 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
- 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.



