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Simpson PowerShot Professional 4200 PSI (Gas-Cold Water) Pressure Washer w/ Honda Engine

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Simpson Pressure Washers and Accessories
Model: PS4240S
(Based on expert analysis, manufacturer ratings and customer reviews)
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
79 Reviews
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January 01, 2018
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  • Features
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  • 2
    Q&A 
  • 79
    Reviews
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  • Accessories
Grade
Style
Water Pressure
4200
PSI
Water Flow
4
GPM
Cleaning Speed
16800
Cleaning Units
Engine
Honda GX
Honda GX 390 Commercial Series Engine
Starts easy, runs smoothly, & delivers high output
3 year engine warranty through Honda; oil included
Oil Alert« monitors oil level, makes maintenance easier

AAAÖ Industrial 4.0 GPM Triplex Plunger Pump
PowerBoost« provides higher pressure at the nozzle
Better cleaning performance than a typical pump; 2 year limited Factory Warranty

Welded Steel Frame & Engine Plate
Solid steel axle & pneumatic tires for extreme durability; 10 year limited Factory Warranty

Pro-Style Spray Wand
5 stainless steel quick connect tips: 0░, 15░, 25░, 40░, & Soap
90 day Factory Warranty on gun, hose, spray wand, & nozzles

50' Steel-Braided 3/8" Quick Connect Hose
Non-marring, kink & abrasion resistant; extends hose life

Professional Spray Gun
Comfortable & easy to operate; safety lock prevents accidents

On-Board Storage
Conveniently keeps spray gun/wand, hose & nozzles handy

Downstream Detergent Injection
Allows for a wider selection of cleaners


Engine
Engine Brand
Honda GX
Starter
Recoil
CC
390 CC
Fuel Tank Size
6.4 quarts
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
3 Years
Pump
Pump Brand
AAA
Pump Type
Triplex Plunger
Adjustable Pressure
Yes
Chemical Injection
Down-Stream
Water Temperature
Cold
Pump Consumer Warranty
2 Years
Pump Commercial Warranty
2 Years
Water Pressure
4200 PSI
Water Flow
4 GPM
Housing
Frame Type
2-Wheel Cart
Wheels
Pneumatic
Hose
Hose Storage
Hook
Hose Length
50 Feet
Hose Material
Rubber
Hose Diameter
3/8 Inch
Hose Connections
Quick-Connect
Spray Gun
Spray Gun Connection
Quick-Connect
Spray Gun Grade
Professional
Spray Gun Wand
Single Wand
Spray Tips
Quick Connect Tips (5)
Turbo Nozzle
Sold Separately
Overview
Made in USA
No
Weight
141 Pounds
Product Length
27 Inches
Product Width
23 Inches
Product Height
28 Inches
Consumer Warranty
1 Year
UPC
879399000713
Model
PS4240S
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  2 Questions
Q: Mike: I'm interested in purchasing the Simpson PS4240S. I will however be moving to Australia in 6 months time and I was wondering how to handle any warranty / service issues that might arise. Thanks in advance. Andrew
by Andrew from California on January 23, 2016

A: Thanks for your inquiry. Unfortunately, the Warranty is handled directly through Simpson and is only honored inside the U.S. IO would recommend reaching out to the folks at Simpson to see if there are any options. They can be reached at 800-710-7499. Thanks
by Brian, Product Expert
Q: simpson 4200
what is the gallons per minute this machine produces?

by Algonquin Powerwash Co. on July 11, 2012

A: This pressure washer puts out 4.0 gallons per minute (GPM)
by Brian, Product Expert
Simpson PS4240S Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
Pros
I'd Buy It Again (24)
Durable (18)
High Quality (17)
Easy To Use (16)
Exceeded Expectations (13)
Cons
Heavy (8)
Expensive (4)
Packaging (4)
Unreliable (2)
Low Quality (1)
92% of respondents would recommend this product to a friend
79 Reviews  Sort by 
 
Asa S.
Eagle, ID
Purchased from Pressure Washers Direct
Purchased 4/13/17
Most Helpful Positive Review
REVIEWED
APR.
24
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Excited About This Pressure Washer!
This pressure washer started right out of the box with only 2 pulls of the starter. It works like a champ and blasts away my other pressure washer!
Pros: Durable, Easy To Use, High Quality, I'd Buy It Again
Cons: hose was only okay
Asa Recommends This Simpson Product
Was this review helpful?
33
Ritch K.
Thompson, OH
Purchased from Pressure Washers Direct
Purchased 2/5/17
Most Helpful Critical Review
REVIEWED
FEB.
27
2017
3 out of 53 out of 53 out of 53 out of 53 out of 5
Unit Doa, Simpson No Help!
Picked up from dock. Unit would not start. Called Simpson. Simpson said called Honda it is their problem. "What ever you do, do not try to fix it yourself" they said.

Honda wanted $61.00 to tell me it was Simpson's fault and they would not warranty any work on it They did get it running for me but it cost me time, trouble and money to take it to that dealer. I am not happy. Honda said I would never have gotten it started with new fuel as the directions said.
Pros: Durable, Easy To Use
Cons: Expensive, Bad Instructions, Packaging
Ritch Recommends This Simpson Product
Brian, the Pressure Washer Expert
Product Expert
Ritch,
We appreciate your business, and apologize for any inconvenience. There are a couple issues here that maybe some explanation will help.

On most professional-grade units the individual components are covered by that component's Factory Warranty. In this case, Simpson makes the AAA pump, so they would handle pump warranty issues; and Honda makes the engine, so Honda Small Engine handles engine warranty claims.

If a repair shop is licensed for Honda small engine warranty work, it is their call whether the issue is related to a defect in materials or workmanship- covered by the Factory Warranty; or not.

Factory Warranties are void if you try to work on the item yourself, so the folks at Simpson were trying to help you protect your Honda warranty coverage.

The engine & pump are directly connected, so one will influence the other. If you let water run through the spray gun for a minute or two before starting the engine it drives air out of the pump, allowing the engine to turn over. (Page 6 in your Owner's Manual). It's always a good idea to use fresh gas in your pressure washer- old gas doesn't burn as well.

You didn't give us any details about how the repair shop determined your issue was "Simpson's fault". Simpson tests each machine before it leaves the dock, and any shipping damage is a separate issue. However, if you can give us some documentation that shows what the problem was (send it to us at 'service@pressurewashersdirect.com') we'll be happy to bring it to Simpson and see if they will reimburse you.
more
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10
Theresa M.
Hesperus, CO
Purchased from Pressure Washers Direct
Purchased 10/21/16
Total Reviews
2 Reviews
REVIEWED
NOV.
17
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Product
The pressure is awesome. It is very user friendly, nozzles are within hand's reach when using, which makes it very easy to change the nozzles while washing.

The pressure makes it so much faster to clean livestock trailers. Use it to clean equipment and vehicles. Definitely need to use the appropriate nozzle for the job. If afraid of to much pressure can idle the engine down or move away from whatever you are washing a little bit. It is awesome!!

It is a little hard to pull the... more
Pros: Exceeded Expectations, I'd Buy It Again, Easy To Use, Easy To Store
Theresa Recommends This Simpson Product
Brian, the Pressure Washer Expert
Product Expert
Theresa,
The siphon system to suck detergent will only work with the low pressure, black nozzle- that's the way it's designed. If you need to apply soap at higher pressure you can add a Foamer or a set of 2nd Story Nozzles- just make sure you base your selection on your machine's GPM and PSI.

You will find it easier to pull the rope if, before you try to start the engine, you squeeze the trigger gun and let water run through your wand for a minute or two. This drives out all the air from your pump & prevents vapor lock. (Page 6 in the Owner's Manual.) Since the pump and engine are connected directly, air in the pump can make the engine very hard to pull-start.
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50
Rick H.
Wayland, MI
Purchased from Pressure Washers Direct
Purchased 9/12/16
REVIEWED
OCT.
25
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
What A Work Horse
Saved up for 3 years to buy a power washer like this and it was worth every penny. Cleans my pool deck in about 1/5th the time I did with my old pressure washer.

Great quality.
Rick Recommends This Simpson Product
Was this review helpful?
20
Michael S.
Muncie, IN
Purchased from Pressure Washers Direct
Purchased 3/2/17
REVIEWED
MAR.
24
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Lots Of Power!
This pressure washer had more power than I thought it would! It ran my 24 inch surface cleaner great !

I've only used it a few times so far but I like that I can adjust the pressure depending on what I'm doing. Be prepared to buy a better gun if you are going to use it every day. The one that it comes with is junk. Luckily they aren't too high priced though.

Overall this is a great pressure washer and I'm happy with it.
Pros: I'd Buy It Again, Easy To Use, Exceeded Expectations, Reliable
Cons: Cheap gun
Michael Recommends This Simpson Product
Was this review helpful?
10
Michael M.
Hollister, CA
Purchased from Pressure Washers Direct
Purchased 1/4/17
REVIEWED
JAN.
25
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Happy So Far
Happy so far. I had one problem right out of the box, but it was an easy fix. The ferrule on the high pressure hose hadn't been crimped, so the 4500 psi hose shot right off the barbed fitting as soon as I had a little pressure. Took the hose over to Parker fittings, and they fixed me up. Better than new, I think.

Anyway, did everything by the book - good oil, good gas, fuel additive for ethanol, etc. I learned not to try and start the motor when the pressure is up - felt like... more
Pros: High Quality, Durable, I'd Buy It Again, The 4.5k psi hose od is smaller than than mos 3K hoses I've seen
Cons: Th H2O hose connector is nested close to the frame member, The 4500 psi hose is kind of rigid making it hard to coil
Michael Recommends This Simpson Product
Was this review helpful?
10
Bill R.
Blackwood, NJ
REVIEWED
SEP.
14
2017
3 out of 53 out of 53 out of 53 out of 53 out of 5
No 5 Year Warranty On Pump!!!!
Dont believe the 5 year warranty on the pump. I own a a small business and have had the pressure washer for a little over 3 months. Then the pump went. Took it too a certified repair facility and got a hold of Simpson after 4 WEEKS they told me it's a AAA pump made by Comet not by Simpson. Apparently AAA pumps have multiple manufacturer sources and comet only gives a 90 day warranty. THANKS
Cons: Warranty is not as advertised
Bill Does Not Recommend This Product
Brian, the Pressure Washer Expert
Product Expert
Bill,
Our rep at Simpson says he spoke with you yesterday, and your pump is currently at Comet for evaluation. This is necessary because the Factory Warranty covers defects in materials and workmanship, but doesn't cover shipping damage or improper set up.

Our rep has asked Comet to expedite the evaluation of your pump, and he will contact you directly with the result. I've also asked for an updated spec sheet for this unit, since the one we have shows 2 years for this pump, and we'd rather show 5 years.

We appreciate your business, and apologize for any inconvenience.
more
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00
Ronnie B.
Sheridan, AR
Purchased from Pressure Washers Direct
Purchased 6/18/17
REVIEWED
AUG.
21
2017
4 out of 54 out of 54 out of 54 out of 54 out of 5
No Support
Thermal relief device failed could not find anyone that would help. Ended up purchasing one and installing it my self. Would never buy from this site again. Terrible customer service.
Cons: No support
Ronnie Does Not Recommend This Product
Brian, the Pressure Washer Expert
Product Expert
Ronnie,
I am so sorry you had a problem with your pressure washer! I checked your file, and I didn't see where you had called or emailed us for help. We would have asked you to contact the folks at Simpson directly at 877-362-4271 since your unit was still covered by the Factory Warranty. Their number is also available through the Service Centers link at the bottom of every page of our website.

We appreciate your business, and apologize for any inconvenience.
more
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00
Albert R.
Rocheste, MA
Purchased from Pressure Washers Direct
Purchased 7/1/17
REVIEWED
JUL.
27
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Delivery Was Prompt & On Time, Honda Motor Exceptional Power,
I use this washer to remove 8-10 years of marine growth on lobster traps- It eats it up.

Awesome product, I would recommend the Simpson 4200 Power washer to any professional. Exceptional value and service from Powewashers Direct. Thank you.
Pros: I'd Buy It Again, High Quality, Exceeded Expectations, Fast
Cons: None
Albert Recommends This Simpson Product
Was this review helpful?
00
Jerry G.
Upland, IN
Purchased from Pressure Washers Direct
Purchased 5/27/17
REVIEWED
JUL.
27
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Fabulous Purchase
I knew I would be getting good product, but this has surpassed my expectations! If you are considering buying this sprayer, DO IT!!!
Pros: I'd Buy It Again, High Quality, Exceeded Expectations, Reliable
Jerry Recommends This Simpson Product
Was this review helpful?
00
Robert Y.
Galeton, PA
Purchased from Pressure Washers Direct
Purchased 6/12/17
REVIEWED
JUL.
05
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Nice Machine !!
Very powerful, better than the big chain washers. This is more like a commercial machine- very nice and built to last !!!
Pros: I'd Buy It Again, Durable, High Quality, Exceeded Expectations
Cons: Heavy
Robert Recommends This Simpson Product
Was this review helpful?
00
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  • Curb Side Delivery
  • Free to Lower 48 States
We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States
Lift Gate Services
  • Safely Lowers Products Off the Truck
  • Requires Special Hydraulic Lift
  • $50.00 Service Charge
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