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โก Power through grime like a pro โ because your time deserves the best!
The SIMPSON PS4240 PowerShot is a professional-grade gas pressure washer powered by a commercial Honda GX390 engine, delivering 4200 PSI at 4.0 GPM. Built for contractors and prosumers, it features a durable AAA triplex plunger pump, a 50-foot kink-resistant hose, and a rugged steel frame with smooth-rolling pneumatic tires. Equipped with five quick-connect nozzles and a 31-inch spray wand, it offers versatile cleaning power for decks, driveways, equipment, and more. Backed by industry-leading warranties, this machine is engineered for longevity, reliability, and superior cleaning performance.























| ASIN | B003NVCC3G |
| Best Sellers Rank | #9,310 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #54 in Pressure Washers |
| Brand | SIMPSON |
| Brand Name | SIMPSON |
| Color | Black |
| Customer Reviews | 4.0 out of 5 stars 501 Reviews |
| Global Trade Identification Number | 00879399000713 |
| Hose Length | 50 feet |
| Included Components | Pressure Washer Powered by Honda GX390, |
| Item Dimensions L x W x H | 8"L x 3"W x 50"H |
| Item Type Name | Gas Pressure Washer Powered by HONDA GX390 |
| Item Weight | 141 pounds |
| Manufacturer | SIMPSON |
| Manufacturer Part Number | PS4240S |
| Manufacturer Warranty Description | 3 Year Limited Commercial Warranty | Pump - 5 Year Limited Warranty | Frame - 10 Year Limited Warranty |
| Maximum Flow Rate | 4 gpm |
| Maximum Pressure | 4200 psi |
| Model Number | PS4240H-SP |
| Power Source | Gasoline |
| Product Dimensions | 8"L x 3"W x 50"H |
| Tank Volume | 1.61 gallons |
| UPC | 879399000713 |
| Unit Count | 1 Count |
| Wand Length | 31 inches |
R**E
This thing is a monster
The machine arrived in good condition. So far I have used it about 10 hours, so I cannot testify about the durability of the unit. However, I can say that this thing eats everything in its path. We just bought a home with a long drive way, a court yard, and a patio all that were covered in years of dirt. I killed a cheap Sears unit trying to get all the concrete clean. I decided the cost of this unit would be worth the price if it made the job easier, and it would last me a lifetime. I was very pleased with the results of this unit. I combined the unit with a 12โ flat surface cleaner, and it must have cut my work time by 400%. I also bought an extra 50โ Monster hose. With the long hose I never had to move the unit. I also bought a pressure gage, which is very handy. I did some research after the unit arrived, and I was able to determine that it has a pump made by Comet. If you donโt know already, Comet makes some of the best pumps you can buy. Be advised, you better have a solid footing, and have a good hold of the wand when you pull the trigger, because it will push you back with a strong force. Because of that, it is a workout using this beast. Also, be very cautious with where you point it. I know it should go without saying but this thing can cause some damage, with the pressure it puts out. I got careless and just barely grazed by lower leg, and it pealed the skin off. So, be careful. So far, I can say that it has been well worth the money spent and would recommend this unit to anybody. Also, I spent hours of research on different models and pricing. Donโt waste your time. You will not find anything any better or a better price, that what Amazon has to offer. i am a long time Amazon customer and if they keep offering prices and delivery like I got on this unit, I will remain an Amazon customer.
S**U
GOOD RELIABILITY
VERY EASY TO USE. STARTS WELL. GOOD PRESSURE.
O**S
Disappointed in Quality Control and Customer Support; Motor rubbing on tire
Disappointed in Quality Control and Customer Support EDIT: Amazon made right after contacting them several times. This was a problem on Simpson's end, and they never took any accountability. They were not only hard to get in contact with, but incredibly dismissive of my having an $1100 brick. This is a 1 star for Simpson, and I will never buy any product from them again. Amazon, thank you for dealing with this problem from... omg... it's like Homer Simpson hiding in the bushes. -end EDIT I bought the Simpson 4200 PSI / 4.0 GPM pressure washer and was excited to put it to workโuntil I realized the cart was rubbing on the motor right out of the box. Not exactly confidence-inspiring on a brand-new unit. There was no way to move the cart at all. This would have been noticed while putting the washer in the box, assembly, or any other step of the way. What other problems am I going to find with this? I reached out to Simpson expecting some accountability or a solution, but instead they just passed the buck and told me to take it up elsewhere. No real help, no interest in fixing the issue. "We just do Parts," the person on the phone told me. Well the parts didn't fit together! For a premium-priced machine, I expected a lot more from both the product and the support team. They told me to try and contact Amazon instead. Very rude person on the phone there as well. I am going to probably end up fixing this myself. You can see from the pictures they mounted the washer 2 inches too far to the left facing the front of the machine. It would be one thing if the manufacturer owned up to the mistake, but she couldn't wait to get me off the phone fast enough. I've never had worse service. I emailed several times with no answer as well.
R**E
good fuel economy
powerful and easy starting
W**E
OMG, why did I wait to get this?
I have has a smaller electric unit (Westinghouse 2K), which I still love and will use a lot for smaller jobs. However I have a lot of hard surfaces on my property and, living in the Pacific NW with the rain, trees and shade means I also have a LOT of moss and other organic buildup to deal with. I have done a lot of research. I've purchased other pressure washers. I finally decided to make the investment in a commercial grade machine because I wasn't getting the results I wanted in any reasonable amount of time and my electric simply doesn't drive a surface cleaner. Manually wanding my driveway was taking days with the electric and that was just focusing on the most important areas. So, with some advice of a trusted friend who owns a rental company, I decided to take the plunge on something with enough pressure (4k PSI) and GPM (3.5 or more) to make a meaningful impact. All I can say is: Wow! In the first 3.5 hours of use, coupled with the Mekoh 18" surface cleaner, I was able to clean 3 times the amount of moss-coated (thick in many spots) surface compared to the surface cleaned in 3+ days manually wanding. I also have a sports court which needs love and will be my next tackle. The obvious concern I've had is not stripping off the paint, but still getting the surface clean. So I wanted something I could "back down". While the pump on the 4240 has a regulator, I actually purchased the Simpson pressure regulator and it seems to work quite well. I suppose I could use the pump regulator in tandem with the extra in-line Simpson regulator to really dial it in, but I'd prefer not to muck about with the pumps factory settings. To address some of the concerns I've seen in other reviews: the unit arrived in excellent condition obviously all new and delivered on time. The modest assembly of the draw bar and wand and hose caddy was a matter of two minutes, easy peasy. The Honda engine instructions and the Simpson quick start guide were easy to follow in terms of adding the oil, fuel and then start up. Start up was just as straightforwardas the manual said, and, as long as I was following those instructions [ahem], it started on the first pull every time. I did make a note that others had said it's helpful to pull the trigger when starting and so I did that (but not always, and even when I didn't, and I had the switches and throttles in the right position, it still started on the first pull). While I have only used it for a short time, there was absolutely no evidence of oil leaking or any of the other mechanical issues mentioned. If this changes over time, I'll come back and edit this review. Everything about the pressure washer is commercial/contractor grade. The Monster hose is just that - it seems like it will withstand anything but does take extra effort to maneuver. In all, the unit does require strength and some stamina to operate (because it's so strong) and you'll need a ramp or some help to get it into the back of a pickup. But if you compare it's effectiveness and the substantial reduction of time, I'd say overall that it takes much less effort to get amazing results than less powerful models. Bottom line: if you're tired of putting up with lesser units, and have the budget for this fantastic monster, I highly recommend it.
S**1
Excellent product - Best quality
Excellent product - Best quality - Great product
M**E
Adapter for washing tolls is broken. Please send me a new one
The machine came perfect. The only issue is the adapter that connects with the tools to power wash the is broken. It went from round to oval. Please send 2 adapter so people who purchase the items don't suffer trying to find the exact fit for this machine. Its frustrating!! Everything else is fine
A**M
DO NOT BUY- Especially w/ ASURION warranty
After a few times pulling it out, it lost pressure which is probably the pump. Ive owned pressure washers for years but this one broke in a months after a few uses! I bought the Asurion warranty which was worthless as it's been 2 weeks since I submitted the claim and the 2nd company they assigned from another city didn't show up and then when i called said they didn't know when they'd come because the girl didn't show up for work AND EVEN WHEN SHE DOES THEY ARE BACKED UP 10WEEKS and don't know why Asurion keeps sending more. So Asurion says sorry give me 3 days to send you a new vendor... AND THEY SENT THE SAME ONE. Been telling me 3 days every time I call and then offered me my money back MINUS TAXES AND WARRANTY PRICE AND THEY HAVEN'T EVEN DONE A DAMN THING TO EARN THAT MONEY!! My warranty is up in 3 weeks so I guess that's what they are waiting for 2 weeks and no contact unless I contact them!! UPDATE: Asurion threatened to note I was refusing service and would end my claim BECAUSE THEY COULDN'T FIND ANOTHER SERVICE CENTER after blowing me off for 2 weeks and the first not picking up when a worker didn't show up for work AND continued to complain they were behind by 10 WEEKS for repair and asked if Asurion told me this. ASURION apologized and said it would be 3 days to call me back with a new vendor.... this happened several more times with 3 days to call me back. 2nd UPDATE: AFTER 2 week wait I'm told that the vendor is the only vendor and they will callthe vendor within the week who will then call me to arrange pick up. It will be 3 weeks from first call that my machine could have been in the 10 WEEK line. UNPROFESSIONAL!!!! NOT WORTH THE PRICE OF WARRANTY. Probably better to save the money to go fix the machine elsewhere. At this point I want ALL MY MONEY BACK , Price, Taxes AND COST OF ASURION NOTE***** BOUGHT ANOTHER VERSION with insurance who wouldn't cover it because the manufacturerwarranty needed to cover the fist year(not the insurance I paid money for)... PUMP BLEW OUT. Fist use after repair PUMP BLEW OUT SAME WAY THESE ARE GARBAGE. DO NOT BUY!
A**R
Buyer Beware, Simpson does not support you or their warranty.
Buyer beware! Simpson pressure washers are terrible and the company does not support its product. Took it in for service on a what seemed to be a minor pump seal issue and wound up with just the motor returned to me with no pump. Simpson has left me without any support or parts to fix it. Save yourself the hassle, DO NOT purchase this brand.
M**S
Missing parts
Missing the main pArt the wand
Trustpilot
1 week ago
4 days ago