---
product_id: 657622926
title: "Simpson PS4240 PowerShot Gas Pressure Washer Powered by Honda GX390, 4200 PSI at 4.0 GPM, (49 State) 60456"
brand: "simpson"
price: "R49219"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Simpson"
url: https://www.desertcart.co.za/products/657622926-simpson-ps4240-powershot-gas-pressure-washer-powered-by-honda-gx390
store_origin: ZA
region: South Africa
---

# 4.0 GPM water flow 4200 PSI max pressure Honda GX390 commercial engine Simpson PS4240 PowerShot Gas Pressure Washer Powered by Honda GX390, 4200 PSI at 4.0 GPM, (49 State) 60456

**Brand:** simpson
**Price:** R49219
**Availability:** ✅ In Stock

## Summary

> 🚀 Power through your toughest jobs with pro-grade pressure and zero hassle!

## Quick Answers

- **What is this?** Simpson PS4240 PowerShot Gas Pressure Washer Powered by Honda GX390, 4200 PSI at 4.0 GPM, (49 State) 60456 by simpson
- **How much does it cost?** R49219 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/657622926-simpson-ps4240-powershot-gas-pressure-washer-powered-by-honda-gx390)

## Best For

- simpson enthusiasts

## Why This Product

- Trusted simpson brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last & Roam:** Heavy-duty welded steel frame with powder coat finish plus 13-inch pneumatic tires for rugged durability and smooth mobility on any terrain.
- • **Effortless Pro Setup:** Quick-connect nozzles and a 50-ft kink-resistant hose mean you’re job-ready in minutes—no downtime, just results.
- • **Unmatched Cleaning Power:** 4200 PSI and 4.0 GPM deliver pro-grade deep cleaning that slays moss, grime, and paint prep faster than ever.
- • **Trusted Honda Reliability:** Commercial-grade GX390 engine ensures instant starts and consistent power, backed by a 3-year limited warranty for peace of mind.
- • **Precision Control & Versatility:** Five spray tips plus thermal relief pump protect your investment while letting you dial pressure to the perfect level for every surface.

## Overview

The SIMPSON PS4240 PowerShot Gas Pressure Washer combines a commercial Honda GX390 engine with a robust AAA industrial triplex pump to deliver 4200 PSI at 4.0 GPM. Designed for professionals and serious prosumers, it features a durable welded steel frame, 13-inch pneumatic tires for easy maneuverability, and a 50-foot kink-resistant hose with five quick-connect nozzles. Engineered for heavy-duty cleaning tasks like deck restoration, paint prep, and graffiti removal, it offers reliable performance, thermal pump protection, and a suite of warranties ensuring long-term durability and value.

## Description

Product Description The SIMPSON Power Shot 4200 PSI at 4. 0 GPM is ideal for prosumers and professionals alike. This is a powerful option for deep outdoor cleaning, job site use, equipment upkeep and facility or fleet maintenance. This product is engineered to meet the demands of a cleaning professional. The PS4240 features a commercial HONDA GX390 engine, reliable AAA industrial triplex pump, 50-ft kink & abrasion resistant hose, ergonomic spray gun and 5 Quick-connect nozzles. Designed to meet the rigorous demands of the cleaning professional, the SIMPSON Power Shot Series frame is crafted of solid steel making it powerful, yet extremely compact, easy to transport, set-up and load. Perfect for contractors who specialize in deck cleaning, wood restoration, paint preparation, graffiti removal and all other professional cleaning services. The SIMPSON Power Shot Series designed for optimum performance in the harshest environments. 3 year limited HONDA commercial engine, 5 year limited pump, 10 year limited frame and 90 day accessory. From the Manufacturer The PowerShot is an extremely powerful direct drive machine. The PowerShot is “The Choice” for Contractors and Cleaning professionals who want direct drive simplicity and SIMPSON quality in one package. More pressure and more water flow result in even greater cleaning performance and faster job completion. Those who agree that “Time is Money” use the PowerShot! Warranty Details: Engine - 3 Year Limited Commercial Warranty | Pump - 5 Year Limited Warranty | Frame - 10 Year Limited Warranty. Heavy duty welded steel construction with steel axle frame

Review: OMG, why did I wait to get this? - I have has a smaller electric unit (Westinghouse 2K), which I still love and will use a lot for smaller jobs. However I have a lot of hard surfaces on my property and, living in the Pacific NW with the rain, trees and shade means I also have a LOT of moss and other organic buildup to deal with. I have done a lot of research. I've purchased other pressure washers. I finally decided to make the investment in a commercial grade machine because I wasn't getting the results I wanted in any reasonable amount of time and my electric simply doesn't drive a surface cleaner. Manually wanding my driveway was taking days with the electric and that was just focusing on the most important areas. So, with some advice of a trusted friend who owns a rental company, I decided to take the plunge on something with enough pressure (4k PSI) and GPM (3.5 or more) to make a meaningful impact. All I can say is: Wow! In the first 3.5 hours of use, coupled with the Mekoh 18" surface cleaner, I was able to clean 3 times the amount of moss-coated (thick in many spots) surface compared to the surface cleaned in 3+ days manually wanding. I also have a sports court which needs love and will be my next tackle. The obvious concern I've had is not stripping off the paint, but still getting the surface clean. So I wanted something I could "back down". While the pump on the 4240 has a regulator, I actually purchased the Simpson pressure regulator and it seems to work quite well. I suppose I could use the pump regulator in tandem with the extra in-line Simpson regulator to really dial it in, but I'd prefer not to muck about with the pumps factory settings. To address some of the concerns I've seen in other reviews: the unit arrived in excellent condition obviously all new and delivered on time. The modest assembly of the draw bar and wand and hose caddy was a matter of two minutes, easy peasy. The Honda engine instructions and the Simpson quick start guide were easy to follow in terms of adding the oil, fuel and then start up. Start up was just as straightforwardas the manual said, and, as long as I was following those instructions [ahem], it started on the first pull every time. I did make a note that others had said it's helpful to pull the trigger when starting and so I did that (but not always, and even when I didn't, and I had the switches and throttles in the right position, it still started on the first pull). While I have only used it for a short time, there was absolutely no evidence of oil leaking or any of the other mechanical issues mentioned. If this changes over time, I'll come back and edit this review. Everything about the pressure washer is commercial/contractor grade. The Monster hose is just that - it seems like it will withstand anything but does take extra effort to maneuver. In all, the unit does require strength and some stamina to operate (because it's so strong) and you'll need a ramp or some help to get it into the back of a pickup. But if you compare it's effectiveness and the substantial reduction of time, I'd say overall that it takes much less effort to get amazing results than less powerful models. Bottom line: if you're tired of putting up with lesser units, and have the budget for this fantastic monster, I highly recommend it.
Review: Quality pressure washer - Excellent pressure washer starts every time with the Honda engine

## Features

- Professional Performance: Easy-to-assemble and easy-to-start with its Honda GX390 premium engine, the PowerShot power washer is great for contractors who specialize in deck cleaning, wood restoration, paint preparation, and all other professional services.PowerBoost: Yes
- Power and Durability: A powerful, reliable, maintenance-free AAA industrial triplex plunger pump delivers 4200 PSI at 4.0 GPM and includes thermal relief to prevent overheating
- Sturdy and Portable: The welded steel frame construction with powder coated finish offers durability and corrosion resistance; 13-inch premium pneumatic tires deliver ease of maneuverability across various terrain and uneven ground
- Includes Quality Accessories: Monster 3/8" x 50' high-pressure hose is kink and abrasion resistant hose with quick connect fittings and polyurethane outer jacket; 5 Quick connect nozzle tips: 0°, 15°, 25°, 40° and Soap; Ergonomic spray gun 31" steel wand
- Important Notes: 49-state compliant; Keep max fuel level 1/2 Inch below bottom of filler neck to avoid spillage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003NVCC3G |
| Best Sellers Rank | #17,257 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #85 in Pressure Washers |
| Brand | SIMPSON |
| Color | Black |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,174) |
| Global Trade Identification Number | 00879399000713 |
| Hose Length | 50 Feet |
| Is Discontinued By Manufacturer | No |
| Item Weight | 141 pounds |
| Item model number | PS4240H-SP |
| Manufacturer | SIMPSON |
| Maximum Flow Rate | 4 Gallons Per Minute |
| Power Source | Gasoline |
| Product Dimensions | 8"L x 3"W x 50"H |
| Tank Volume | 1.61 Gallons |
| UPC | 879399000713 |
| Wand Length | 31 Inches |

## Product Details

- **Brand:** SIMPSON
- **Color:** Black
- **Global Trade Identification Number:** 00879399000713
- **Hose Length:** 50 Feet
- **Item Weight:** 141 Pounds
- **Maximum Flow Rate:** 4 Gallons Per Minute
- **Power Source:** Gasoline
- **Product Dimensions:** 8"L x 3"W x 50"H
- **Tank Volume:** 1.61 Gallons
- **UPC:** 879399000713

## Images

![Simpson PS4240 PowerShot Gas Pressure Washer Powered by Honda GX390, 4200 PSI at 4.0 GPM, (49 State) 60456 - Image 1](https://m.media-amazon.com/images/I/81AFwhWpLSL.jpg)

## Questions & Answers

**Q: I am considering starting a small pressure washing business. Would this be a good unit to run 2-4 days a week, several hours at a time?**
A: This machine is built just for your kind of business. The engine has ball bearings on the shafts and designed for heavy use.The pump is also well made.Its a little hard to start at times with out an electric starter. If you are going to use it constantly I would add an electric starter and consider also good hose reel.The unit is somewhat heavy so consider mounting it on the vehicle semi permanently, so you don't strain yourself lifting the 140 plus pounds.The battery and electric starter will add another 10 to 15 pounds.This a heavy duty unit built to last a long time.Very well made. I also added an in tank fuel strainer to my unit.Check out the engine on the honda website for further details on this great  little engine. The pump is also designed for heavy use and well designed.The pumps output pressure is also adjutable and has a  visual oil window.

**Q: Is the unloader removable or is it built-in?**
A: It is removable and adjustable

**Q: What's the maximum length braided hose length usable without loosing pressure?**
A: I use 100 ft of hose with no pressure drop

**Q: Can I have a hundred foot hose instead of fifty**
A: Get yourself a 100 foot 3/4 heavy duty water hose and you will get along quite well with the 50 foot.

## Customer Reviews

### ⭐⭐⭐⭐⭐ OMG, why did I wait to get this?
*by W***E on April 26, 2024*

I have has a smaller electric unit (Westinghouse 2K), which I still love and will use a lot for smaller jobs. However I have a lot of hard surfaces on my property and, living in the Pacific NW with the rain, trees and shade means I also have a LOT of moss and other organic buildup to deal with. I have done a lot of research. I've purchased other pressure washers. I finally decided to make the investment in a commercial grade machine because I wasn't getting the results I wanted in any reasonable amount of time and my electric simply doesn't drive a surface cleaner. Manually wanding my driveway was taking days with the electric and that was just focusing on the most important areas. So, with some advice of a trusted friend who owns a rental company, I decided to take the plunge on something with enough pressure (4k PSI) and GPM (3.5 or more) to make a meaningful impact. All I can say is: Wow! In the first 3.5 hours of use, coupled with the Mekoh 18" surface cleaner, I was able to clean 3 times the amount of moss-coated (thick in many spots) surface compared to the surface cleaned in 3+ days manually wanding. I also have a sports court which needs love and will be my next tackle. The obvious concern I've had is not stripping off the paint, but still getting the surface clean. So I wanted something I could "back down". While the pump on the 4240 has a regulator, I actually purchased the Simpson pressure regulator and it seems to work quite well. I suppose I could use the pump regulator in tandem with the extra in-line Simpson regulator to really dial it in, but I'd prefer not to muck about with the pumps factory settings. To address some of the concerns I've seen in other reviews: the unit arrived in excellent condition obviously all new and delivered on time. The modest assembly of the draw bar and wand and hose caddy was a matter of two minutes, easy peasy. The Honda engine instructions and the Simpson quick start guide were easy to follow in terms of adding the oil, fuel and then start up. Start up was just as straightforwardas the manual said, and, as long as I was following those instructions [ahem], it started on the first pull every time. I did make a note that others had said it's helpful to pull the trigger when starting and so I did that (but not always, and even when I didn't, and I had the switches and throttles in the right position, it still started on the first pull). While I have only used it for a short time, there was absolutely no evidence of oil leaking or any of the other mechanical issues mentioned. If this changes over time, I'll come back and edit this review. Everything about the pressure washer is commercial/contractor grade. The Monster hose is just that - it seems like it will withstand anything but does take extra effort to maneuver. In all, the unit does require strength and some stamina to operate (because it's so strong) and you'll need a ramp or some help to get it into the back of a pickup. But if you compare it's effectiveness and the substantial reduction of time, I'd say overall that it takes much less effort to get amazing results than less powerful models. Bottom line: if you're tired of putting up with lesser units, and have the budget for this fantastic monster, I highly recommend it.

### ⭐⭐⭐⭐⭐ Quality pressure washer
*by R***I on January 6, 2026*

Excellent pressure washer starts every time with the Honda engine

### ⭐ Disappointed in Quality Control and Customer Support; Motor rubbing on tire
*by O***S on April 14, 2025*

Disappointed in Quality Control and Customer Support EDIT: Amazon made right after contacting them several times. This was a problem on Simpson's end, and they never took any accountability. They were not only hard to get in contact with, but incredibly dismissive of my having an $1100 brick. This is a 1 star for Simpson, and I will never buy any product from them again. Amazon, thank you for dealing with this problem from... omg... it's like Homer Simpson hiding in the bushes. -end EDIT I bought the Simpson 4200 PSI / 4.0 GPM pressure washer and was excited to put it to work—until I realized the cart was rubbing on the motor right out of the box. Not exactly confidence-inspiring on a brand-new unit. There was no way to move the cart at all. This would have been noticed while putting the washer in the box, assembly, or any other step of the way. What other problems am I going to find with this? I reached out to Simpson expecting some accountability or a solution, but instead they just passed the buck and told me to take it up elsewhere. No real help, no interest in fixing the issue. "We just do Parts," the person on the phone told me. Well the parts didn't fit together! For a premium-priced machine, I expected a lot more from both the product and the support team. They told me to try and contact Amazon instead. Very rude person on the phone there as well. I am going to probably end up fixing this myself. You can see from the pictures they mounted the washer 2 inches too far to the left facing the front of the machine. It would be one thing if the manufacturer owned up to the mistake, but she couldn't wait to get me off the phone fast enough. I've never had worse service. I emailed several times with no answer as well.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-07*