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Customer reviews for SIMPSON PowerShot 4400 PSI at 4.0 GPM SIMPSON 420cc Gas Pressure Washer for
SIMPSON PowerShot 4400 PSI at 4.0 GPM SIMPSON 420cc Gas Pressure Washer
4.7 out of 5 stars
stars
664 ratings650 reviews
  1. 5 stars83% (548)
  2. 4 stars12% (79)
  3. 3 stars2% (10)
  4. 2 stars1% (4)
  5. 1 star3% (23)

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Showing 201-210 of 650 reviews
May 1, 2026
Reviewer name: Mark5138
5 out of 5 stars
5 out of 5 stars review

Great Machine

This pressure washer is great, my old one was only 210 cc 2.6 gpm and you can really tell the difference with a 4 gpm machine. It is built really well and am very happy with it's performance.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
May 10, 2026
Reviewer name: RudyC
5 out of 5 stars
5 out of 5 stars review

Super strong pressure washer

I bought this pressure washer to do sidings of houses and driveways as a side job and it has exceeded all expectations. If you’re on the fence whether or not to get it, pull the trigger. You won’t regret it.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
May 11, 2026
Reviewer name: bamaoutlaw
5 out of 5 stars
5 out of 5 stars review

great features . great price point

just received and put it to work . overall very pleased so far. plenty of pressure , good engine and nice pressure handle. would recommend this pressure washer

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
May 20, 2022
Reviewer name: Mick1956
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Powerful and a Time Saver

I bought this to pressure wash my house and driveway. Using only the green tip it works great. The best thing about all this power is time. My son in law has an 1800 psi electric pressure washer and if I would have used it on my project I'm guessing 12 hours. With the 4400 psi I did the entire project in 4 hours.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Marketing

That's great to hear, Mick1956! We are glad to hear you were impressed with the performance of your 4400 PSI pressure washer & it delivered power to save you time on the house & driveway. With a driveway on the list, you might be a great candidate for the surface cleaner attachment as well - it is a real timesaver on large surfaces (link below.) You can show off your work any time you like by tagging #simpsonclean on social media & we would love to see your results. Thanks for taking the time to review. https://simpsoncleaning.com/products/20-industrial-surface-cleaner-80182/

Jul 19, 2019
Reviewer name: Johnnie Walker
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Plenty of cleaning power

I bought this pressure washer a few weeks ago. I was hesitant about buying it with Simpson engine rather than Honda but the Simpson engine starts easily and runs fantastic With 4400 PSI, you can clean anything in no time especially with the 4500 PSI Simpson turbo nozzle. This is a Great pressure washer. Took about 5 minutes to assemble and put in supplied oil.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
Nov 2, 2017
Reviewer name: XwhodeyX
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

So Far , So Good!

I have only been able to use this twice because it's getting close to winter. The times I have used it, I am very happy with the power and the engine/pump combo. My one gripe that would probably get me to rate it at 4.5 stars is the hose being so stiff. Especially on the colder day, it was a lot to wrestle but I keep telling myself that will make it last longer. Hopefully, that's the case.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
May 9, 2016
Reviewer name: NorthGAMike
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Awesome

I bought this to drive a General Pump Hammerhead 20" surface cleaner. That think was floatin' like a hovercraft. If you need the pressure and can afford it, get the Honda. I never cranked it that it didn't start on the first pull INCLUDING the very first start.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
Jan 25, 2026
Reviewer name: Lox25
4 out of 5 stars
4 out of 5 stars review

Worked well once started

I picked up machine yesterday and tried a few attempts to start it up. The machine did not start up the first few times. I decided to try starting it with the choke lever in run and it started right up. I have no idea why. The choke is supposed to be closed. After started it up i decided to test it and i believe it worked fine. Just a bit worried about weather the choke lever is backwards or something. Just hoping run is run and choke is choke

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
reply from Simpson Team

We're glad you were able to get up and running, Lox25. If you run into any issues, please don't hesitate to contact our team at 877-362-4271 or email us at productsupport@simpsoncleaning.com and we'd be happy to help work out any kinks. Thanks for sharing your experience!

Aug 25, 2016
Reviewer name: Dave
3 out of 5 stars
3 out of 5 stars review

Verified Purchase

Powerful but pump ussue

Used for a total of 2 hours until dramatic pump failure with water spraying everywhere! Had to take whole sprayer to service center 20 miles away. Been there for a week and still no news about warranty repair. Despite this (I assume I was just unlucky) it is an incredibly powerful machine and is a fantastic cleaner.

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122
Jun 29, 2019
Reviewer name: Christofast
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Awesome Machine!

More power than I need, had a hard time holding wand from recoil... take the crome off a trailer hitch!!! had to turn down the volume on this one pressure is off the hook! Great machine, no issues yet. Works like a champ! Very pleased and would recommend this unit to all...

Review from simpsoncleaning.com
Helpful?4LDY3BT2CMUR13758761122