The Westinghouse WPX3400 is a gas-powered pressure washer offering a maximum water pressure of 3400 PSI and flow of 2.6 GPM. (Read full specs)
Zoom on the Westinghouse WPX3400
In summary, the Westinghouse WPX3400 is a heavy duty, commercial pressure washer, that offers an all-around versatile cleaning experience, and also:
- spot cleaning of hard, paintless surfaces and reaching far-away areas
- thorough cleaning of hard, paint-free surfaces
- cleaning of painted and fragile surfaces
- use of detergent and cleaning solutions
The Westinghouse WPX3400's axial cam pump, powered by a powerful 212 cc engine, can provide a pressure of up to 3400 PSI (approximately 57 times more than a standard garden hose) and a flow of up to 2.6 GPM (values claimed by the manufacturer). The Westinghouse WPX3400 thus has a cleaning power of 8840 Cleaning Units.
The engine of this gas-powered pressure washer relies on an old-school pull-start mechanism to get started.
Gasoline is stored in a fuel tank with a maximum capacity of 0.9 gallon.
Design & Handling
Thanks to its hand truck design and approximate dimensions of D21 x W19.5 x H39 in, the Westinghouse WPX3400 offers great mobility. The robust steel tubing frame guarantees longevity of the assembly. The foam-padded fixed handle adds to the WPX3400 convenience of transport, while offering a comfortable grip.
With a weight of 63 lbs, the unit can be easily maneuvered by most users. Its 212 cc engine and steel tubing frame account for a good chunk of that weight. Since the WPX3400 has a set of two 12" never-flat wheels, it is still easily maneuvered and manipulated.
The Westinghouse WPX3400 comes with a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are detailed below.
- Soap injection: Detergent is stored in a 0.5 gal tank. The Westinghouse WPX3400 has an automatic soap dilution mechanism, which dilutes the detergent using a 12:1 ratio. When a soap nozzle is connected, the detergent will be added automatically to the water.
- Pressure hose: Using a set of convenient hooks, the included 25 ft ⌀5/16" high-pressure hose can be easily stored on the unit when it is not running.
- Spray gun and wand: The included classic ergonomic spray gun and its steel wand can be easily stored in a side hook.
- Nozzles: The table below shows you the 5 included nozzles, as well as the surfaces they're the most appropriate for.
|Concrete, brick, masonry||Use with caution||Suitable||Suitable||Suitable||Suitable|
|Siding, gutters, house||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Fencing, deck, patio||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Lawn equipment, boat, RV||Not recommended||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 Westinghouse WPX3400's handy storage area lets you store nozzles and accessories, and thus, you’ll be always prepared and have everything necessary for the job at hand.
- 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: On top of an owner's manual (opens in a new tab) and the usual documentation to get you swiftly started, the Westinghouse WPX3400 also comes with nozzle cleaner, funnel, oil, pressure hose, wand and spray gun.
- Emissions: The Westinghouse WPX3400 is EPA-approved and CARB-compliant. Thus, selling and purchasing this pressure washer is allowed in each of the 50 states, including California.
The Westinghouse WPX3400's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Westinghouse WPX3400 compare to similarly priced pressure washers.
- The Westinghouse WPX3400, which can reach up to 3400 PSI, has one of the highest pressure outputs of the gas-powered units that cost between $300 and $400.
- In the aforementioned price range, the 2.6 GPM (gallons per minute) of this washer makes it one of the better performing units in terms of the delivered volume of water. If maximum rinsing efficiency is your top priority, one of the devices with the highest water flow in the same price range is the Predator 3100, with a GPM of 2.8.
- Reaching up to 8840 Cleaning Units (PSI x GPM), the WPX3400 is one of the more efficient amongst its similarly priced peers. In case you are looking for the highest overall cleaning power, in this price range, one of the current champions is the Predator 3200 and its 8960 Cleaning Units.
As you can see from this interactive chart, when compared to other gas-powered washers between 8500 and 9000 Cleaning Units, the Westinghouse WPX3400 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.
Features and Specifications
|Water||Cold (104°F max.)|
|Engine||212 cc OHV 4-stroke|
|Soap tank||0.5 gal|
|Nozzles||0°, 15°, 25°, 40°, Soap|
|Quick connect nozzles||Yes|
|Hose||25 ft, ⌀5/16|
(D x W x H)
|Approx. 21 x 19.5 x 39 in|
|Wheels||2 wheels, ⌀12", never flat|
|Included accessories||Oil, funnel, nozzle cleaner, steel wand, spray gun, high pressure hose, 5 nozzles|
|Security||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.
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.
The Westinghouse WPX3400 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.