3400 Psi at 2.5 GPM with OEM Technologies™ Axial Cam Pump Cold Water Gas Pressure Washer
3400 Psi at 2.5 GPM with OEM Technologies™ Axial Cam Pump Cold Water Gas Pressure Washer
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3400 Psi at 2.5 GPM with OEM Technologies™ Axial Cam Pump Cold Water Gas Pressure Washer

4.3 stars out of 93 reviews
(4.3)|
93 ratings

Key item features

  • Powerful Engine: CRX 210 engine equipped with a low oil shutdown feature for safety and reliability.
  • Maintenance-Free Pump: OEM Technologies axial cam pump with a thermal relief valve to prevent overheating.
  • Durable Hose: 25 ft. high-pressure hose is flexible, kink, and abrasion-resistant with a non-marring polyurethane outer jacket.
  • Sturdy Construction: Steel frame with a powder-coated finish ensures durability and corrosion resistance.
  • Easy Maneuverability: 10 in. premium pneumatic wheels for smooth movement across various terrains.
  • Versatile Nozzles: Includes 4 quick connect nozzle tips (0°, 15°, 40°, and soap) for diverse cleaning applications.
  • Compact Dimensions: Unit measures L 37 in. x W 30 in. x H 21 in. and weighs 64 lbs., making it easy to store and transport.
  • Gas Powered: Operates on gas with 0 voltage, suitable for powerful cleaning tasks.
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Current price is $379.00
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Columbus, 43215
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3400 Psi at 2.5 GPM with OEM Technologies™ Axial Cam Pump Cold Water Gas Pressure Washer $379.00

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Customer ratings & reviews

4.3 out of 5 stars
stars93 ratings66 reviews
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Reviews summary

Pros
  • : Works well in residential settings with proper maintenance.
  • : Offers good value for its size.
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Showing 1-3 of 66 reviews

Dec 20, 2025
AMello
5 out of 5 stars review

Seller Verified Purchase

Sturdy product and good quality

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.

Review from simpsoncleaning.com
Helpful?47TSOJVKDCQL730710223
Dec 3, 2025
Robert
Sold and shipped byCPO Commerce
5 out of 5 stars review

Verified Purchase

Wash It All! and well!

This is a great machine. Strong enough to clean concrete (get a surface cleaner, it will save you hours and clean much better too). But be careful with cars and homes. I bought a 40° tip with a 4.0 oriface to greatly reduce pressure. The supplied tips have a 3.0 oriface (hole size that water passes through) and produce enough pressure to cause damage to soft items if you're too close. The 4.0 is soft enough but flows a lot of water! Excellent for cleaning! You can use the 3.0 tips for everything, just be mindful that if you get too close, you'll remove the paint or siding. It might be vapor lock causing difficult hot restarts. Whatever, the pull rope is WAY too short. Buy a cheap replacement lawn mower pull rope and install that in place of the supplied one. It's super easy, 3 small bolts and the whole housing removes. Plenty of videos online show how. You'll go from 3' to over 5' of pull, enough to get it running when hot. Before I did this, I couldn't get it to restart either. Now it's easy. Open the wand valve to release water pressure first, then pull. The rope I bought is thinner so more length will go on the spool. Works fine and is a must-do IMO. Make sure you NEVER run it without a strong water supply going through the pump. I run water through the hose to purge air first, then connect to the washer, then run water for a minute to make sure air is purged from the pump, then start it. If the pump runs dry, eventually it won't make good pressure anymore and you'll need to replace it, and it's costly. Don't let it idle for long periods. I limit myself to about 30 seconds. If I need more time, I shut the washer off. Since I now have a long pull rope, it starts reliably when hot every time now. Make sure you are using Pump Saver anti freeze and lubricant. Spray a shot when finished after using to keep the pump lubricated. Spray a lot in the pump before winter storage so you don't have water freezing in your pump. An easy pull on the rope will circulate it. Any washer can make pressure. What cleans well and cleans quickly is water flow. The big machines flow big. That's why I bought one instead of a small electric one. Using that 4.0 oriface tip to wash my cars puts a lot of water out with no danger of harming the paint. Cleans fast and well! I bought a second-story nozzle kit and was able to wash my 2 story home very well while standing on the ground. It came out very clean and free of mold. Use pool bleach with 1/4 cup laundry detergent for each gallon, spraying it with the washer. Let it sit 5 -10 minutes but don't let it dry! Then rinse. This is a great machine. I really like this washer. There are factory service centers around, and some parts (like the pump) are available. I think that's where this company stands out from others. It has more than paid for itself with all I've cleaned at home. My wife is really happy. Therefore, so am I lol.

Helpful?47TSOJVKDCQL730710223
reply from SIMPSON Team

It's great to hear you've enjoyed a stellar performance & your 3400 PSI pressure washer has been delivering plenty of power to suit a wide range of projects. It's sounds like you have really customized your experience - however, we would not advise the use of bleach or other caustic chemicals as they may over time damage the components of your detergent delivery system. We do offer detergents made specifically for pressure washers that can tackle a wide array of demands and are safe for your equipment. We will include a link for your convenience below. Hope this helps. https://www.walmart.com/ip/Simpson-88289-Pressure-Washer-Multi-Purpose-Cleaner-1-gallon/12023963382?classType=REGULAR&from=/search

Oct 29, 2025
Sal
5 out of 5 stars review

Verified Purchase

Worth every penny because this will last for years

So much better than those $99 models or electric units which I had tried before. This is a really nice almost professional level machine. I love it and highly recommend. Easy to use and a real workhorse.

Helpful?47TSOJVKDCQL730710223
reply from SIMPSON Team

We're glad to hear your 3400 PSI pressure washer has been performing with power & reliability to prove itself a significant upgrade & great investment. Show it off any time by tagging #simpsonclean on social media & we'd love to see any before/after photos as you clean. Enjoy that machine & thanks for the positive feedback, Sal!