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)
Zoom on the NorthStar 157123
The NorthStar 157123 is a heavy duty, commercial pressure washer, that provides its users with an all-around versatile cleaning experience, and enables:
- intense cleaning of hard, unpainted surfaces
- cleaning of painted and fragile surfaces
- use of detergent and cleaning solutions
The NorthStar 157123's triplex pump, powered by a 193 cc (6.5 hp) engine, can provide a pressure of up to 3300 PSI (approximately 55 times more than a standard garden hose) and a flow of up to 2.5 GPM (values claimed by the manufacturer). The NorthStar 157123 thus has a cleaning power of 8250 Cleaning Units.
A classic pull-start mechanism is responsible for starting the gas-powered pressure washer’s Honda GX200 engine.
Gasoline is stored in a steel fuel tank with a maximum capacity of 0.8 gallon.
Design & Handling
The wheelbarrow design of the NorthStar 157123 grants mobility and stability to the unit. The robust and sturdy steel frame offers longevity to the assembly. The handle adds to the 157123 convenience of transport.
The device weighs 95 lbs and thus, is far from lightweight. Transporting and manually lifting it may therefore pose a challenge. The main contributor to its weight are its 193 cc Honda GX200 engine, the triplex pump and steel frame. However, the unit is mobile thanks to its two 10" never-flat wheels, which add to its movability and allow it to be manipulated smoothly on the job.
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: While the device doesn't feature a soap tank, detergent supply is ensured by a siphon hose. The detergent is diluted with a 15:1 ratio by the NorthStar 157123's automatic soap dilution mechanism. Whenever a soap nozzle is connected, the detergent is automatically added to the water.
- Pressure hose: The included 50 ft ⌀3/8" high-pressure hose can be neatly stored on the unit when idle thanks to a set of convenient hooks.
- Spray gun and wand: A side hook enables you to easily store the included classic ergonomic spray gun and its wand.
- Nozzles: The 4 included nozzles, and the respective surfaces they’re appropriate for, are listed in the table below.
|Concrete, brick, masonry||Suitable||Suitable||Suitable||Suitable|
|Siding, gutters, house||Use with caution||Use with caution||Suitable||Suitable|
|Fencing, deck, patio||Use with caution||Use with caution||Suitable||Suitable|
|Lawn equipment, boat, RV||Use with caution||Use with caution||Use with caution||Suitable|
Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.
- 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 thermal relief valve (which helps to prevent internal pump damage), a trigger lock mechanism (which prevents accidental operation) and a low oil protection.
- Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the NorthStar 157123 comes with soap hose, spray gun, wand and pressure hose.
- Emissions: The NorthStar 157123 is EPA-approved and CARB-compliant. Thus, selling and purchasing this pressure washer is allowed in each of the 50 states, including California.
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 with its 3300 PSI achieves a lower pressure value, compared to other gas-powered pressure washers in the $800-900 price range. As for the device with the most powerful water stream, in this price range, one of the top products is the Pressure-Pro PP4440K with 4400 PSI.
- When compared to devices in the above-mentioned price range, this washer and its 2.5 GPM (gallons per minute), is on the lower end of the achievable water flow. In case you are looking for a device which can most efficiently rinse away debris in the current price range, the Pressure-Pro PP4440K has the highest GPM of 4.
- The 157123 has 8250 Cleaning Units (PSI x GPM), which can be considered low in comparison to other gas-powered devices of this price. When it comes to the highest overall cleaning power in the current price range, one of the products at the very top currently is the Pressure-Pro PP4440K and its 17600 Cleaning Units.
As you can see from this interactive chart, 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.
Features and Specifications
|Water||Cold (140°F max.)|
|Engine||193 cc 6.5 HP Honda GX200 OHV 4-stroke|
|Pump||CAT 4DNX Triplex|
|Soap injection||Via siphon hose|
|Nozzles||15°, 25°, 40°, Soap|
|Quick connect nozzles||Yes|
|Hose||50 ft, ⌀3/8|
(L x W x H)
|Approx. 40.3 x 26 x 23.8 in|
|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|
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.
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.
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.