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Customer reviews for Simpson 3400 PSI at 2.5 GPM HONDA® GX200 with CAT Triplex Plunger Pump Cold Water Professional Gas Pressure Washer for
Simpson 3400 PSI at 2.5 GPM HONDA® GX200 with CAT Triplex Plunger Pump Cold Water Professional Gas Pressure Washer
4.6 out of 5 stars
stars
256 ratings256 reviews
  1. 5 stars75% (192)
  2. 4 stars18% (47)
  3. 3 stars4% (9)
  4. 2 stars1% (2)
  5. 1 star2% (6)
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Showing 31-40 of 256 reviews
Sep 30, 2026
Reviewer name: RJohbson1969
5 out of 5 stars
5 out of 5 stars review

Great Pressure Washer

This pressure washer started on the first pull. Super easy to start. My wife had no issues with easily setting it up and starting it. Much lighter than my old one. No complaints with this one

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Aug 11, 2026
Reviewer name: I don't have a nickname
4 out of 5 stars
4 out of 5 stars review

2nd time around was the charm

This is my 2nd Simpson pressure washer (in one week). The first one ran fine but difficult to start (GPX engine). In less than two hours, the clear site-glass in the pressure pump (AAA Triflex) popped out and evacuated oil everywhere. Did some research on the two pressure pumps offered by Simpson (AAA Triplex and CAT Triplex). Internet overwhelmingly recommends the CAT Triplex pump over the AAA Triplex! I returned the pressure washer and purchased the one I originally wanted in the first place, but got talked out of (aluminum frame, Honda engine) and this time I got the CAT Triplex pump. Wife grew up on a farm and thinks every power tool I buy is for her (like a kid on Christmas Morning). She's a Happy Camper now.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
reply from Simpson Team

Hello - We're sorry to hear about the pump issues you experienced with your first unit. This certainly isn't a normal performance & we will be sure to document this feedback for our team. It's good to hear your second unit has delivered a smooth performance. Enjoy that machine & thanks for reviewing!

Jul 31, 2026
Reviewer name: Rick Sands
5 out of 5 stars
5 out of 5 stars review

Industrial Quality, Great components and engineering.

Just took delivery of my 3rd Simpson Pressure Washer. Can't beat the Honda Engine? Cat Pump combination. The machine was easy to assemble in 10 minutes and I got right to work with it and, as ewxpected...it performed flawlessly. My other Simpson's started right up even after long storage. Recommend ethanol-free gas commonly available. A most reliable, Pro-Series Industrial machine. Wasn't expecting the Super Duty hose and wand. A very nice upgrade!

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Jul 10, 2026
Reviewer name: DFWM
5 out of 5 stars
5 out of 5 stars review

ALH3228-S

Excellent pressure washer with outstanding build quality. The Honda engine starts easily, the CAT triplex pump runs smoothly and quietly, and the machine delivers consistent, professional-level cleaning power. Assembly and setup were straightforward, and everything feels heavy-duty and built to last. If you're looking for a reliable pressure washer that performs as well as commercial units, this is an excellent investment. Highly recommended.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Aug 28, 2026
Reviewer name: Ps4570
4 out of 5 stars
4 out of 5 stars review

Well-Built Machine, but Pump Vent Plug Setup Needs Improvement

I've only assembled and test-run the ALH3228-S so far, so this is an initial impression rather than a long-term review. Once set up, the machine started easily, ran smoothly, and appears to deliver strong pressure and good water flow. The Honda engine and CAT pump were major reasons I chose this model, and the overall construction feels solid. The aluminum frame also keeps the machine relatively manageable. My main issue was with the pump vent/oil plug setup. The instructions were not particularly clear, and while removing the factory plug, the plug actually broke, with part of it dropping into the opening. Fortunately, the red oil-fill/vent assembly is thoughtfully designed with a cage underneath it, which prevented the broken piece from traveling farther into the pump and made it possible to retrieve it without much trouble. I appreciated that design feature, but the plug itself and the setup instructions could definitely be improved. The information in the manual was different from the information on the sticker that was on the pump. Aside from that frustrating hiccup, assembly was straightforward and the machine performed well during my initial test. So far I'm pleased with the purchase, though I'll need more actual cleaning time before commenting on long-term performance and durability. Deducted one star. Four stars feels appropriate at this point, the machine itself has made a very good first impression, with the deduction mainly for the vent-plug setup.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Jul 2, 2026
Reviewer name: DC Horne
5 out of 5 stars
5 out of 5 stars review

Love This Pressure Washer!!

This pressure washer has a solid build. The big wheels make it easy to transport over rougher terrain. I love the quick connect feature on this unit. It makes for quick setup and breakdown. It's a plus that this was made in the USA because quality of the product shows.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Jul 6, 2026
Reviewer name: wbcrlr
5 out of 5 stars
5 out of 5 stars review

Very nice

I have only used it a couple of times so far, but it does a great job and I'm very happy with it. I specifically searched for a unit with a Honda GX engine and a CAT pump. I know that the GX and CAT are quality and don't expect to have any trouble with it. The other Honda's and other brand pumps might be ok, but I like to buy what I know is good even if it costs a little more rather than having to fix or replace. "Buy once, cry once!"

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Jul 7, 2026
Reviewer name: Gkand2
5 out of 5 stars
5 out of 5 stars review

Built well... and Powerful

Bought this unit because of the Honda motor and the Cat pump. For piece of mind. And if there was an issue the warranty is there for years! Very powerful... almost too much. Have to be careful on what you are using it on and how close you get. Gets everything off of my SxS and ATVs, sidewalks, and patios.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Jul 12, 2026
Reviewer name: Lukol
4 out of 5 stars
4 out of 5 stars review

The beast

It's the beast. You will feel real power in your hands. You need to know how to use it in right way or instead of cleaning you will destroy whatever you are trying to clean. I didn't use it a lot at the moment of review, but I am very happy to own pro pressure washer hoping it will work for me for many years to come. One thing I didn't like about it is packaging. Cardboard box is to soft for this washer and came to my house in very bad shape that is may lead to product damage.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
reply from Simpson Team

Hello, Lukol. Thanks for your packaging feedback! We're sorry to hear about the condition of the box upon arrival. If you suspect performance has been affected in any way, please don't hesitate to contact our team at 877-362-4271 or email us at productsupport@simpsoncleaning.com & we will be happy to help get any issues resolved. We're glad you've enjoyed the power of your machine & appreciate the review!

Aug 5, 2026
Reviewer name: Manyard
4 out of 5 stars
4 out of 5 stars review

The right features.

I bought this washer due to its features. I wanted the CAT pump because it can be serviced, repaired and replaced. I wanted the low oil safety for obvious reasons. I wanted a Honda engine. I appreciate the aluminum frame for weight saving. The fact it looks cool was just a bonus. It would be cool if Simpson shipped more than 16 ounces of oil for a motor that requires 20 ounces—according to the owner's manual.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
reply from Simpson Team

Hello, Manyard. We’re sorry for the confusion regarding the amount of oil that came with your pressure washer. The 20 oz. specification refers to the maximum oil capacity of the engine, but the engine doesn’t require 20 oz. to be properly lubricated. The ideal range would be between the upper and lower (Min / Max) marks on the dip stick, which when filled and checked on a level surface should be no more than about 16oz. Please note, some oil residue may remain in the engine after it was line-tested, so you may not need the entire 16 oz. of oil that came with your purchase. Just be sure to check the oil dipstick before starting, and as long as it’s within the High/Low range, you should be in great shape with the amount of oil provided with your purchase. Thanks for reviewing & enjoy that machine!