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SIMPSON

Simpson 3500 PSI Gas Pressure Washer and 15-Inch Surface Cleaner, 2.5 GPM Residential Power Washer, 25' Hose, Clean Machine, 49-State (CM61118-S)

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Style: 3500 PSI


Features

  • SIMPSON PRESSURE WASHER FOR HOMEOWNERS: The Clean Machine gas power washer and Surface Cleaner kit is great for homeowners; Easily clean sidewalks, driveways, walls, fencing, patio furniture, and cars; 49-State Compliant (Not for sale in California)
  • ENGINE & PUMP: Kohler SH270 engine starts easily with its large recoil and includes low-oil shutdown; Maintenance-free 3500 PSI 2.5 GPM AAA axial cam pump is equipped with an integrated, adjustable unloader, thermal relief valve, and PowerBoost Technology
  • EASY MOBILITY: 10" premium pneumatic tires roll smoothly over gravel, grass, and curbs; Balanced layout improves transport; The welded steel frame with powder-coated finish is easy to assemble and resists corrosion; 41" L x 21" W x 21.5" H; 65 lb.
  • INCLUDES PRESSURE WASHER SURFACE CLEANER: Stainless steel nozzles and powder coated steel shroud to add durability and prevent overspray; Dual nozzles clean up to 10X faster than using gun and wand alone
  • PRESSURE WASHER ACCESSORIES FOR DIY-ERS: 25' hose and five quick-connect pressure washer tips (0, 15, 25, 40, and soap nozzle) cover tasks from washing windows to car cleaning; M22 pressure washer gun and 16" spray wand included

Description

Clean big with the SIMPSON Clean Machine 3500 PSI Gas Pressure Washer and 15-Inch Surface Cleaner Kit (CM61118-S). Powered by a reliable Kohler SH270 engine with easy recoil start and low-oil shutdown, this residential pressure washer delivers 2.5 GPM and up to 3500 PSI of cleaning power, perfect for driveways, sidewalks, patios, fencing, and vehicles. The maintenance-free AAA AX300 Pro Axial pump includes an integrated adjustable unloader and thermal relief valve. PowerBoost Technology provides higher pressure at the nozzle resulting in greater impact and cleaning performance. Durable and easy to maneuver, the welded steel frame features 10" pneumatic tires for smooth transport across any terrain. This bundle includes a 15" surface cleaner with stainless steel nozzles and dual high-speed jets to clean up to 10X faster. Also included: a 25' high-pressure hose, 16" spray wand, M22 gun, and five quick-connect nozzles (0°, 15°, 25°, 40°, and soap). 49-state compliant (not for sale in California).

Brand: SIMPSON


Power Source: gas_powered


Color: Red/Red


Item Weight: 65 Pounds


Hose Length: 300 Inches


Specification Met: CETA


Product Dimensions: 23"L x 21.5"W x 22.5"H


Tank Volume: 2.5 Gallons


Maximum Flow Rate: 2.5 Gallons Per Minute


UPC:


Brand: SIMPSON


Power Source: gas_powered


Color: Red/Red


Item Weight: 65 Pounds


Hose Length: 300 Inches


Specification Met: CETA


Product Dimensions: 23"L x 21.5"W x 22.5"H


Tank Volume: 2.5 Gallons


Maximum Flow Rate: 2.5 Gallons Per Minute


UPC: 879399008146


Item Weight: 65 pounds


Manufacturer: Simpson Cleaning


Item model number: CM61118-S


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Sturdy product and good quality
Style: 3400 PSI
I was initially reluctant to purchase a gas-powered pressure washer because I did not want to take on additional engine maintenance. However, after reading several reviews and watching instructional videos, I learned that to achieve a consistent high operating pressure, not just peak pressure, it is ideal to use a reliable internal combustion engine to power the pump. I compared several brands and ultimately chose the Simpson 3400 psi model because it is made in the United States and provides the pressure level I need to remove mold and algae from my pool cage’s aluminum frame, as well as to clean my deck, driveway, and sidewalks more efficiently. So far, I am very satisfied with the performance. The pressure is significantly higher than that of my two previous electric washers, and the unit appears to operate reliably. The noise level bothered me at first, but I quickly adjusted. All components appear to be of good quality, at least as they look when new. In addition to the overall build quality, the larger wheels make it much easier to move the washer around, especially on grass. In summary, I am very pleased with this purchase, and based on my experience so far, I highly recommend the Simpson 3400 psi model for home use. ... show more
Reviewed in the United States on December 11, 2025 by Al_Mello
    • This is a great power washer!
Style: 3500 PSI
Review Image by Joshua Chrisman Joshua Chrisman
Review Image by Joshua Chrisman Joshua Chrisman
Review Image by Joshua Chrisman Joshua Chrisman
Review Image by Joshua Chrisman Joshua Chrisman
Review Image by Joshua Chrisman Joshua Chrisman
Review Image by Joshua Chrisman Joshua Chrisman
Review Image by Joshua Chrisman Joshua Chrisman
The media could not be loaded. I have had the Simpson Clean Machine 3500 PSI 2.5 GPM Kohler SH270 Power Washer for over two years now. I did have some issues at the very beginning. I had orginally ordered the first one which did not work, wouldnt turn over and the water pump was damaged. Called Amazon and the woman on the phone made the request for another one, as I really did want this particular power washer, very easy. The first one was picked up two days later and the next one came two days after that. Five minute set up. Connected it to a hose, filled the gas tank, went through each step listed, and the power washer started first pull, which it does 99% of the time even after it has sat for a long time. Now, you may have noticed that two parts on this power washer are not OEM. The Gas Tank (which came dented in right where the cap attaches but it wasnt an issue so it didnt bother me at the time), and the Air Cleaner Assembly, only because the power washer tipped in the back of my vehicle after I accelerated too fast. Both we very easy to fix. I decided to change out the gas tank because the cap has been hard to place back on recently and there was a slight crack where the dent was that most likely formed as a result of taking the gas cap on and off. Power washer still runs very well and I know I will get many years of service out of it. If I had to say anything truly negative about this power washer it wouldnt be about the washer. The service cleaner, that came as a bundle to the power washer, never worked right. It would get to full speed and then die back down immediately. I ended up getting rid of it just this year and I plan to get a better one sometime this year or next. ... show more
Reviewed in the United States on May 27, 2024 by Joshua Chrisman Joshua Chrisman
    • Powerful Pressure Washer
Style: 3400 PSI
Easy to set up, gets the job done! Very powerful but easy to use. Not too bulky. Great pressure washer. Pressure is excellent and engine starts right up with no problem
Reviewed in the United States on December 21, 2025 by Rachel Winesett
    • Solid Pressure Washer but hose is terrible.
Style: 3400 PSI
Only had it a few days but wanted to make the following comments. Fired right up (First pull) and solid Pressure performance. As others have noted, the hose is terrible. Isn't flexible nor does it really conform to anything. Aside from being a pain to deal with, doubt it will last long. Don't know the pricing on replacement, but that alone makes it less 'comparable' from a price point perspective. ... show more
Reviewed in the United States on July 14, 2025 by M Miller
    • Failure after 5 minutes of usage **Update***
Style: 3400 PSI + Surface Scrubber
I was looking forward to using this pressure washer as Simpson is one of the top brands in the business. I received the pressure washer and everything arrived intact. It was simple to assemble and instructions were easy to follow. Added oil and gas and it was ready to go. Easy start up and was working great until it wasn't. Engine shut off and would not restart. I then discovered the spark plug wire had come unattached and when I checked it, the inside of the plug fell out. Unfortunately this could not be repaired and now I have to go to a service center for a warranty repair. A WARRANTY REPAIR AFTER 5 MINUTES IS UNACCEPTABLE. Now I have to wait 3 weeks or more for the repair. A NEW pressure washer that has to be repaired should be replaced and if not then a significant refund should be issued! This is the chance you take buying online and my advice would be to buy locally for this exact reason. Had customer service been authorized to replace the unit rather than repair the unit I would have no issues but now I am afraid this unit may give me problems for as long as I have it. **Update: I wish this was a happy ending update but as of today October 7, 2024, my NEW pressure washer is still with the Authorized Repair Center. After repeated calls, trips to the shop, conversations with warranty, the issue is still unresolved. I keep getting the same response, we are waiting on a part. No one has reached out to me to keep me in the loop during the process, the only way I get information is when I seek it out myself. I have been very patient but no one seems to care. At this point I just want a refund so I can go purchase another unit. I will keep you updated so that you may learn from my experience. ... show more
Reviewed in the United States on July 2, 2024 by Travis Brafford
    • Ease of assembly
Style: 3400 PSI
The pressure washer arrived on time and with no shipping damage. Assembly was simple with the amount of instructions and documentation provided. The washer literally started on the first pull. I also ordered an extra 50 ft hose which allowed me to get a lot of work done without constantly moving everything around. The soap attachment was also perfect and switching back and forth between soap an no soap was the simplest I’ve ever experienced. I’m definitely pleased with this unit. ... show more
Reviewed in the United States on December 24, 2025 by Shopaholic

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