The WPX3400 offers a compelling mix of cleaning power and user-friendly features for the average homeowner. Whether you are tackling seasonal deep cleaning or routine driveway maintenance, this unit proves to be a reliable, efficient workhorse for residential property upkeep.

I finally found the perfect pressure washer after spending a few weeks doing research. I have used it a few times since I received it. There is not oil leak like other brands. With the price point, it even comes with a soap dispenser unlike others which need to purchase separately.

Easy to assemble even for a klutz like me. Easy to follow instructions. Started right up. Cleaned a large concrete patio and driveway with ease using the Westinghouse 16.5"surface cleaner. Only complaint is the online Quick Start Guide noted a 10mm and 13mm wrench was not included yet it was.

Bought this April 11-2026 was surprised by the psi pressure I’m use to to a lot higher psi pressure from work but this is prefect for the thing for things to do around home. One thing thro my oil plug didn’t have a dipstick I think the owners manual showed one

This is the first pressure washer I've owned and after using it a few times to clean stonework in my driveway and yard, I'm impressed. It starts easy and has good power. The only issue I've had is that the hose briefly came in contact with the muffler and the hose ruptured. I know that's user error, but the hose is thin with little or no protection. I'll be more careful with the next hose that I purchase.

I just completed the initial assembly and setup of my new Westinghouse WXP3400 Gas Power Washer. It was very easy to complete the assembly process. I was greatly impressed with the overall quality of the product! Everything is well designed and manufactured. The only flaw that I detected is the storage arrangement for the nozzle cleaner. The storage placement is just fine; however, all that is provided is an oversized hole to in which the tool is placed, but nothing in the design holds the tool securely in place. I totally expect, that if I use this storage arrangement, that this tool will eventually be lost. I plan to keep it stored in my specialty toolbox that I use for this type of tool. Otherwise, I am looking forward to my first use of this power washer. It has convenient holders for the pressure wand and pressure hose, in addition to easy-to-use hookups for the pressure hose and water supply hose. That's not to mention the large capacity soap dispenser, that is conveniently located, and easy to access for filling.

This unit is a beast.. it performs as advertised. One gripe … the water hose connection point… during operation, the vibration of the unit caused a small hole in my hose due to rubbing on the wheel..A 90 degree connection would easily remedy this… keep the hose at or near the ground…

I bought 2 and just received this and so far 1 washer does not work. I called the hotline and was told by a woman at Westinghouse that it may be missing a key in the shaft and to remove the 4 bolts to the pump and check myself. I have no idea if this washer works or not but it seems ridiculous to have to do this myself because it is "faster than anything else".

This product works completely as advertised. My only nitpick is that there is enough vibration from the motor that the unit will walk in circles while running. This isn't a big deal except for it coils the high pressure line and supply hose around the unit until it prevents it from rotating anymore. All In all, it is a powerful unit and a great value for the price. It had no problem blasting the grime off my large concrete driveway.

Just received my WPX3400 Pressure Washer and tested it out. Did a quick once over of the patio and am extremely impressed with the power and how quickly it cuts through a years worth of grime. After using an electric pressure washer the previous years this is so much faster and does a more thorough job. The worst part of the experience was trying to read the tiny directions that are included. I'm not sure why they even bother and instead just include a link or QR code. It took longer trying to decipher them than to actually put it together. Once that part is done using the pressure washer has been great.