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NorthStar 157122 Spec Review

The NorthStar 157122 is a gas-powered pressure washer offering a maximum water pressure of 3100 PSI and flow of 2.5 GPM. (Read full specs)

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Description

Honda GX160 engine 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 157122

The NorthStar 157122 is a heavy duty, commercial pressure washer, that provides its users with an all-around versatile cleaning experience, and enables:

  • intense cleaning of tough, paintless surfaces
  • cleaning of painted and fragile surfaces
  • application of detergent and cleaning solutions

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

The NorthStar 157122 in use

The NorthStar 157122

Its triplex pump, which utilizes a 163 cc (4.8 hp) engine, may deliver a pressure of up to 3100 PSI (almost 52 times more than a standard garden hose) and a flow of up to 2.5 GPM. These values correspond to a cleaning power of 7750 Cleaning Units.

The Honda GX160 engine of this gas-powered pressure washer gets started by a classic pull-start mechanism.

A steel fuel tank with a maximum capacity of 0.83 gallon is used to store gasoline.

Design & Handling

The wheelbarrow design of the NorthStar 157122 grants mobility and stability to the unit. The robust steel tubing frame guarantees longevity of the assembly. The handle adds to the 157122 convenience of transport.

This model weighs 95 lbs. For this reason, it cannot be called lightweight and thus, carrying and transporting it might be somewhat challenging. The major reasons for its heavy weight are its 163 cc Honda GX160 engine, the triplex pump and steel tubing frame. However, the unit is manipulated smoothly thanks to its two 10" never-flat wheels, which play a key role in its maneuverability.

Main Features

The NorthStar 157122 in use

The NorthStar 157122

The NorthStar 157122'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 though the device doesn't have a soap tank, detergent is supplied by a siphon hose. The NorthStar 157122 features an automatic soap dilution mechanism, that will dilute your detergent with a 15:1 ratio. Whenever a soap nozzle is connected, the detergent is automatically added to the water.
  • Pressure hose: The included 50 ft high-pressure hose can be neatly stored on the unit when idle thanks to a set of convenient hooks.
  • Spray gun and wand: The included classic ergonomic spray gun and its wand can be easily stored in a side hook.
  • Nozzles: The 4 included nozzles, and the respective surfaces they’re appropriate for, are listed in the table below.
 

15°

25°

40°

Soap
Concrete, brick, masonrySuitableSuitableSuitableSuitable
Siding, gutters, houseUse with cautionUse with cautionSuitableSuitable
Fencing, deck, patioUse with cautionUse with cautionSuitableSuitable
Lawn equipment, boat, RVUse with cautionUse with cautionUse with cautionSuitable

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.

Other Features

Some of the accessories of the NorthStar 157122

Some of the included accessories

  • Onboard storage: With the NorthStar 157122'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 157122 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 wand, soap hose, spray gun and pressure hose.
  • Emissions: The NorthStar 157122 is EPA-approved and CARB-compliant. And so, this pressure washer is available for sale and purchase in any of the 50 states, including California.

Product Video

The NorthStar 157122's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the NorthStar 157122 compare to similarly priced pressure washers.

  • The NorthStar 157122, which can achieve a PSI of up to 3100, falls behind the other gas-powered pressure washers in the $700 to $800 price range. As for the device with the most powerful water stream, in this price range, one of the top products is the Lifan LFQ4515E-Elite with 4500 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. In case you are looking for a device which can most efficiently rinse away debris in the current price range, the Simpson PS60843 has the highest GPM of 4.
  • The 157122's Cleaning Units, 7750 CU (PSI x GPM), fall into the lower end when compared to gas-powered devices of similar price. If you consider the highest overall cleaning power as a really important factor, the Lifan LFQ4515E-Elite and its 18000 Cleaning Units has one of the highest cleaning efficiency of all the similarly priced units.

Price comparison

As you can see from this interactive chart, when compared to other gas-powered washers between 7500 and 8000 Cleaning Units, the NorthStar 157122 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

STRENGTHS:
  • Triplex pump
  • Honda engine
  • Designed to be stable
  • Good range of nozzles included
  • Automatic detergent dilution
  • Onboard storage
  • Several security features
  • CARB-compliant
  • 10 year (limited) warranty
WEAKNESSES:
  • On the expensive side
  • No soap tank
  • Low PSI for the price
  • Low GPM for the price
  • Low CU for the price

Do you own the NorthStar 157122 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
FuelGas-Powered
HandlingWheelbarrow
WaterCold (140°F max.)
PSI3100
GPM2.5
Cleaning Units7750
Engine163 cc 4.8 HP Honda GX160 OHV 4-stroke
PumpComet DWD Triplex
Features
FrameSteel tubing
Soap injectionVia siphon hose
Soap dilution15:1
Nozzles15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose50 ft
Hose storageHooks
Misc
Dimensions
(L x W x H)
Approx. 40.3 x 26 x 23.8 in
Weight95 lbs
Pressure controlValve
Wheels2 wheels, ⌀10", never flat
Included accessoriesWand, spray gun, high pressure hose, soap hose, 4 nozzles
SecurityLow oil, trigger lock and thermal relief valve
EmissionsCARB, EPA
Warranty10 years

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.

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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 157122 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.

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