Name: Westinghouse 3800 PSI 3.6 GPM 274cc Gas Powered Triplex Pump Cold Water Pressure Washer with 5-Quick Connect Nozzles
Brand: Westinghouse
SKU: 20163350605
Availability: InStock
Rating: 4.6 (461 reviews)

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Westinghouse 3800 PSI 3.6 GPM 274cc Gas Powered Triplex Pump Cold Water Pressure Washer with 5-Quick Connect Nozzles

Instructions

<p>"The Westinghouse WPX3800 gas powered pressure washer, with 3800 PSI and 3.6 GPM, is designed to tackle your toughest cleaning jobs with ease. Built with a powerful 4-Stroke OHV Westinghouse engine and a commercial grade triplex brass head pump, it’s meant for powerful heavy duty cleaning. With 5 interchangeable nozzle tips, the WPX3800 has the versatility to handle a variety of situations and surfaces including brick, stone, concrete, wood, aluminum and iron. The 1.3 gallon fuel tank and the high profile pneumatic tires offer easy mobility and maneuverability, allowing you to get into those hard-to-reach places with the toughest grime. Make all your deep-cleaning projects easier than ever before with the Westinghouse WPX3800 pressure washer. "</p>

Brand

<ul>  <li>Delivers 3800 PSI of pressure and 3.6 GPM of water flow</li>  <li>5 quick connect nozzle tips: 0°, 15°, 25°, 40°, soap applicator</li>  <li>Commercial grade triplex brass head pump with oil lubrication</li> </ul>

Specifications

<ul>
<li>Delivers 3800 PSI of pressure and 3.6 GPM of water flow</li>
<li>5 quick connect nozzle tips: 0°, 15°, 25°, 40°, soap applicator</li>
<li>Commercial grade triplex brass head pump with oil lubrication</li>
</ul>

I have a large concrete driveway, so this 3800 psi product was purchased to make surface cleaning a 1 day job rather than struggling with a weaker pressure washer taking 2-3 days to do the job.  Well made, solid.  Actually more compact than I expected, but delivers the water flow volume and pressure I need.  This produce is positioned at the top of consumer level pressure washers at a reasonable price ... bigger, more powerful units are available as industrial level tools at a much higher cost.

A top consumer level pressure washer

westinghouse.com

Powerful

walmart.com

I bought this earlier this week to use for cleaning my tractor and implements.  This pressure washer is a beast.  Definitely an upgrade from the 2200psi one that I had been using.  Easy to put together, easy to start, and the pressure/power was better than expected for the jobs I needed to do.

Great Pressure Washer (3800 psi)

So far so good, and looking forward to the solid, reliable performance we got from our first impression.  Most grateful for clear  instructions for assembly and use!

Liking our new pressure washer

I bought this pressure washer to clean my vinyl fences and driveway. It delivered plenty of pressure to accomplish the jobs and worked great paired with the 16 inch surface cleaner. The 35 foot hose was much better than the 25 foot I used with my old pressure washer.

Very Strong Pressure

I bought this to start my first business it seems very professional and im excited to try it out! I was a bit upset to see the gass tank got bent in transport. Other than that it seems like its going to be a great washer.

First business washer

My First ever pressure washer was a Kärcher Electric 1600PSI / 1.3GPM Not enough not enough power. Then I bought a Husky Electric 1800PSI / 1.6PSI which did good for being  electric, but still not enough to tackle every household task. Then bought a Craftsman Gasoline Powered 2300PSI / 2GPM thinking I was right at the mark I needed but left me with lots to desire. I decided to go full in and bought a DeWalt Gasoline Powered 4400PSI / 4.0GPM which impressed me right away, but the pump spun out and failed on the second use, then got repaired under warranty(3 months in wait) and handling the spray nozzle was hard and vibration triggered my carpal tunnel. A year into it and the Honda GSX motor easy pull start failed thus needing full pull force and 20 pulls to get it to start. Did I mentioned it was too heavy, big ole footprint and LOUD. I used the DeWalt for 2 years, but came too the conclusion it was a bit too powerful, too hard to operate, tought to start, too heavy so I sold it. Lessons Learned; Gallons Per Minute are every bit as important as Pressure. With that said, I scaled down to the Westinghouse WPX3800 advertised as 3800PSI / 3.6GPM which runs a Triplex Pump on a Westinghouse 274cc Motor. 
Pros:
1.) MADE IN THE USA (with foreign parts?)
2.) 3.6 Gallons Per Minute @ 3800 PSI is a very good balance point. It has enough water flow to displace away dirt and enough pressure for water to dislodge dirt and grime from from just about any surfaces at home. Big pro is that the motor/pump does not have a Duty Cycle rating like electric pressure washers os it can be used continuously for extended periods of time without having to stop to let it cool down.
3.) The Westinghouse motor is relatively quiet. The pull start was a little harder than I expected (following user's manual start procedure) and it took some effort getting it to prime and start the first time I used it ( I will say that was the learning Curve, but still I think there is room to improve on that area). The tank holds about a gallon of fuel. I cleaned the entire driveway, and the entire front sidewalk on 1 gallon; I ran it continuously for about 2 hours and still had some fuel left in the tank. 
4.) The whole unit weights a little over 50Lbs. The cart makes it easy to move around. The wheels are flat free( thats a win). It's footprint its about 2'x3' and can be reduced for storage by flipping the handle bar towards the motor down to 2'x2'.
5.) Gallons Per Minute is the key to a pressure washer. This machine pushes enough pressurized water to get the job done easily. Pressure without water is just an air hose. I live across the street from a lake and a pond and run-off goes into them so I cannot use chemicals to clean the driveway, sidewalk, exterior of the house etc... With that said, this machine tackled all those tasks with just plain water and very little effort.
6.) Warranty- the unit arrived with a damaged / crushed fuel tank during shipment. I called Westinghouse and they answered right away; within two days, a new Fuel Tank Assembly shipped to me directly. Very Pleased. The rest is yet to be seen!
7.) Bang for the Buck- For a pressure washer in this price range that does 3800PSI/3.6GPM, the WPX3800 pressure washer is a win-win.

Cons:
1.) Pull start was a little harder than expected. and It took me several pulls to get it to start the first time I used it. I followed the manual step by step. I am comparing to the Honda GX motors which have a very easy to pull-start mechanism (which does not work all the time!),
2.) The Wand Holder system is no good. The wand falls easily. And if the Hose is still attached it will fall right away. It only works partially when stationary and no hose attached. If you move the machine, the wand will fall(and trample your feet if not aware). There are better ways to store the wand like a sleeve where to insert and store / hold the wand rather than the actual bracket that comes with it.
3.) I wish the hose storage system was better as well, but at least is more effective on its purpose than the wand holder.

3800PSI / 3.6GPM - Cleaning Power of the WPX3800

Looks to be well made.  I have not used it yet so will update the review after I have used it a while.  I noticed in the manual the WPX3800 has dual oil fill ports, one on each side.  i thought I was missing a cap on one side but realized one side is permenantly plugged at the bottom.  Don't know why they didn't plug it at the top or provide a cap as the hole is about 2" deep and will collect water and dirt.

Looks to be well made.

I purchased this April 2025 and used it to power wash the back of the house and pool deck (maybe 3 hours total). It worked well. HOWEVER, the second time I used it in May 2026, the pump started leaking out the bottom about an hour in to powerwashing the pool deck. I called support and was told that the pump is a maintenance item and not covered under warranty. I did properly winterize the machine and stored it a basement so freezing was not the issue.  It worked fine for an hour into the job before it started spewing water out the bottom. Please don't make the same expensive mistake I did in buying this machine.

Buyer beware

I bought the WPX3800 a few months ago because the price had dropped, but I did not use it until this weekend.  And oh my lord, what a disappointment!  It is nearly impossible to start.  Not exaggerating, it took a good 10-20 pulls to get it to start.  And after literally one day of use it is rusting in multiple places, paint has chipped, and a bolt came loose and fell off.  What is happening???

Westinghouse 3800 PSI 3.6 GPM 274cc Gas Powered Triplex Pump Cold Water Pressure Washer with 5-Quick Connect Nozzles

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Highlights

Sun Joe Electric Pressure Washer W/ Wheels | Accessory Kit | 14.9-Amp | 2200 Rated PSI | 1.1 Rated GPM