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Westinghouse WPX4400 - 4400 PSI 4.2 GPM 420cc Gas Pressure Washer

The Westinghouse WPX4400 is a gas-powered pressure washer offering a maximum water pressure of 4400 PSI and flow of 4.2 GPM. (Read full specs)

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Price history for the Westinghouse WPX4400
Highest Price
$1,399.99
Lowest Price
$897.20
Current Price
$897.20

Features and Specifications

FuelGas-Powered
HandlingWheelbarrow
WaterCold (104°F max.)
PSI4400
GPM4.2
Cleaning Units18480
Engine420cc OHV 4-stroke
PumpTriplex
Pump materialBrass
FrameSteel tubing
Soap injectionVia siphon hose
Soap dilution12:1
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose50 ft, ⌀5/16
Hose storageHooks
Dimensions
(L x W x H)
Approx. 38 x 25 x 30 in
Weight142 lbs
Wheels2 wheels, ⌀12", never flat
Included accessoriesOil, funnel, nozzle cleaner, steel wand, EnduraGrasp spray gun, high pressure hose, soap hose, 5 nozzles
SecurityTrigger lock and thermal relief valve
EmissionsCARB, EPA
Warranty3 years
UPC850032657693

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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Description

Zoom on the Westinghouse WPX4400

In a nutshell, the Westinghouse WPX4400 is a heavy duty, commercial pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:

  • targeted spot cleaning for hard, unpainted surfaces, reaching elevated areas, and thoroughly removing stubborn stains
  • comprehensive cleaning of hard surfaces, vehicle washing, and readying surfaces for painting
  • mild cleaning for delicate surfaces, and low-pressure cleaning for broader areas
  • applying detergents and cleaning agents, and rinsing off surfaces

Ahead are presented its power characteristics and design, its main features and any other additional features.

Power

The Westinghouse WPX4400 in use

The Westinghouse WPX4400

Powered by a powerful 420cc engine, its brass triplex pump can deliver a pressure of 4400 PSI (around 73 times more than a standard garden hose) and a flow of up to 4.2 GPM (values claimed by the manufacturer). With these values combined, the Westinghouse WPX4400 boasts a cleaning power of 18480 Cleaning Units.

Starting the engine of this gas pressure washer involves using a conventional pull-start method.

Gasoline is stored in a fuel tank with a maximum capacity of 1.72 gallon.

Design & Handling

Featuring a wheelbarrow design, the Westinghouse WPX4400 prioritizes maneuverability and stability, ensuring smooth handling and reliable functionality in demanding cleaning applications. Built to endure, the steel tubing frame ensures the assembly's longevity by providing stability and safeguarding internal components under all working conditions. The reversible handle offers further versatility, as its different positions make the unit less bulky when stored.

At 142 lbs, this unit's substantial weight makes it quite a challenge for users to lift and maneuver, particularly on uneven surfaces where its heft can become even more apparent. The main contributors to its weight are its 420cc engine, the triplex pump and steel tubing frame. Nonetheless, the addition of two 12" never-flat wheels simplifies maneuvering the WPX4400, even across rough ground.

Main Features

The Westinghouse WPX4400 in use

The Westinghouse WPX4400

Along with the Westinghouse WPX4400 itself, the package also includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are discussed in further detail below.

  • Soap injection: Though lacking a dedicated soap tank, the device ensures detergent supply via a siphon hose. The Westinghouse WPX4400 is equipped with an automatic soap dilution mechanism, efficiently blending detergent to the predefined ratio of 12:1. Attachment of a soap nozzle prompts the pressure washer to automatically introduce and blend the detergent with the water.
  • Pressure hose: For easy organization, the included 50 ft ⌀5/16" high-pressure hose can be stored on the unit using a set of convenient hooks when it's not in use, ensuring a clutter-free workspace.
  • Spray gun and wand: A side hook allows for an easy storage of the included ergonomic EnduraGrasp spray gun and its steel wand.
  • Nozzles: Find details on the 5 included nozzles and their recommended surface applications in the table below.


15°

25°

40°

Soap
Concrete, brick, masonryUse with cautionSuitableSuitableSuitableSuitable
Siding, gutters, houseNot recommendedUse with cautionUse with cautionSuitableSuitable
Fencing, deck, patioNot recommendedUse with cautionUse with cautionSuitableSuitable
Lawn equipment, boat, RVNot recommendedUse 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

  • Onboard storage: Stay prepared for any job with Westinghouse WPX4400's handy storage area, which allows you to neatly store any nozzles and accessories which you may need for the job.
  • Safety: Safety of operation is enhanced by a thermal relief valve (which helps to prevent internal pump damage) and a trigger lock mechanism (which prevents accidental operation).
  • Accessories: Included with the Westinghouse WPX4400 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 nozzle cleaner, pressure hose, spray gun, wand, oil, funnel and soap hose.

The Westinghouse WPX4400's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Westinghouse WPX4400 compare to similarly priced pressure washers.

  • With a maximum pressure of 4400 PSI, the Westinghouse WPX4400 ranks as one of the gas-powered products that attain the highest water pressure levels, within the $775 to $900 price range.
  • The water flow of this washer, which reaches up to 4.2 GPM (gallons per minute) is one of the highest values found in the above-mentioned price range.
  • Boasting 18480 Cleaning Units (PSI X GPM), the WPX4400 places itself as one of the most efficient choices in its specific price range.

Price comparison

As you can see from these interactive charts, when compared to other gas-powered washers between 17600 and 18900 Cleaning Units, the Westinghouse WPX4400 is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget pressure washer.

The bottom line

STRENGTHS:
  • Inexpensive
  • Triplex pump
  • Designed to be stable
  • Good range of nozzles included
  • Automatic detergent dilution
  • Onboard storage
  • Several security features
  • High PSI for the price
  • High GPM for the price
  • High CU for the price
WEAKNESSES:
  • No soap tank

Do you own the Westinghouse WPX4400 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

About Westinghouse

Since its founding in 1886 by George Westinghouse, the Westinghouse brand has become synonymous with electric power. With a wide-ranging product line supporting heavy industry, municipal power grids, and home appliances, the company has maintained innovation as one of its core values. Westinghouse has several partnerships and controlling stakes in media enterprises and manufacturing conglomerates worldwide, including Viacom and Electrolux. Products for the homeowner and contractor marketed under the Westinghouse brand are produced in facilities worldwide, and include outdoor power equipment such as pressure washers and portable generators.

Warranty Information

The Westinghouse WPX4400 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Westinghouse pressure washers, please consult Westinghouse's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-855-944-3571.

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