NorthStar 157127 - 4200 PSI 3.5 GPM Gas Pressure Washer With Honda Engine
The NorthStar 157127 is a gas-powered pressure washer offering a maximum water pressure of 4200 PSI and flow of 3.5 GPM. (Read full specs)
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Description
Equipped with an industrial-grade Honda GX390 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 157127
The NorthStar 157127, a 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
- gentle cleaning of delicate surfaces, and low pressure cleaning of larger areas
- applying detergent and cleaning solutions, and rinsing surfaces
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 powerful 389cc (11.7 hp) engine, may deliver a pressure of up to 4200 PSI (almost 70 times more than a standard garden hose) and a flow of up to 3.5 GPM. Corresponding to these values is a cleaning power of 14700 Cleaning Units.
To initiate the Honda GX390 engine of this gas-powered pressure washer, a traditional pull-start mechanism is employed.
The pressure washer's steel tank has a maximum capacity of 1.5 gallon for storing gasoline.
Design & Handling
The wheelbarrow design of the NorthStar 157127 offers enhanced mobility and stability, making it ideal for navigating uneven terrain and ensuring steady operation during heavy-duty cleaning tasks. Built to endure, the steel tubing frame ensures the assembly's longevity by providing stability and safeguarding internal components under all working conditions. The handle adds to the 157127 convenience of transport.
With its weight clocking in at 145 lbs, this unit's heftiness can't be ignored, presenting significant difficulties for users who need to lift and transport it, especially over uneven terrain. The main contributors to its weight are its 389cc Honda GX390 engine, the triplex pump and steel tubing frame. Nonetheless, the addition of two 10" never-flat wheels simplifies maneuvering the 157127, even across rough ground.
Main Features
The NorthStar 157127's package includes a spray gun, a wand, a pressure hose, 4 nozzles and a detergent injection feature, with a more detailed description below.
- Soap injection: Even without a built-in soap tank, the device relies on a siphon hose to provide detergent. With its automatic soap dilution mechanism, the NorthStar 157127 simplifies the process of blending detergent to the prescribed ratio of 15:1. Attachment of a soap nozzle prompts the pressure washer to automatically introduce and blend the detergent with the water.
- Pressure hose: The unit comes equipped with an included 50 ft ⌀3/8" high-pressure hose, which can be neatly stored on the unit when idle, thanks to a set of convenient hooks, ensuring easy access and organization.
- Spray gun and wand: A side hook allows for an easy storage of 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 |
Please be aware: The shapes of the depicted nozzles are for illustration purposes and may differ. Symbols utilized include a indicating 'Not recommended,' a for 'Suitable,' and an for 'Use with caution.'
Other Features
- Onboard storage: The NorthStar 157127 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: On top of an owner's manual (opens in a new tab) and the usual documentation to get you swiftly started, the NorthStar 157127 also comes with pressure hose, soap hose, spray gun and wand.
Product Video
The NorthStar 157127's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the NorthStar 157127 compare to similarly priced pressure washers.
- With 4200 PSI, the NorthStar 157127 ranks as one that can reach an above average pressure, amongst the gas-powered products that cost between $1200 and $1500. If the highest possible power of the water stream is your priority, one of the champions in this price range is the DeWalt DXPW4440 with 4400 PSI.
- In the aforementioned price range, the GPM (gallons per minute) of this washer, which can reach 3.5, can be considered in the average. When it comes to efficiently rinsing away debris, one standout option within this price range is the DeWalt DXPW4440, delivering an impressive 4 GPM.
- With a rather impressive value of 14700 Cleaning Units (PSI X GPM), the 157127 has a higher cleaning efficiency compared to similarly priced devices. If the highest overall cleaning power is a priority, the DeWalt DXPW4440 and its 17600 Cleaning Units are notable for their higher potential cleaning efficiency compared to units in the same price range.
Price comparison
As you can see from these interactive charts, when compared to other gas-powered washers between 14000 and 15500 Cleaning Units, the NorthStar 157127 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
- High PSI for the price
- High CU for the price
- Decent GPM for the price
- No soap tank
Features and Specifications
| Fuel | Gas-Powered |
|---|---|
| Engine | 389cc 11.7 HP Honda GX390 OHV 4-stroke |
| Pump | CAT 66DX35 Triplex |
| Water | Cold (140°F max.) |
| PSI | 4200 |
| GPM | 3.5 |
| Cleaning Units | 14700 |
| Pressure control | Valve |
| Frame | Steel tubing |
|---|---|
| Handling | Wheelbarrow |
| Wheels | 2 wheels, ⌀10", never flat |
| Weight | 145 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 157127 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.



