---
product_id: 41238824
title: "SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State"
brand: "simpson"
price: "R298757"
currency: ZAR
in_stock: true
reviews_count: 6
category: "Simpson"
url: https://www.desertcart.co.za/products/41238824-simpson-cleaning-trailer-mounted-4200-psi-gas-pressure-washer-4
store_origin: ZA
region: South Africa
---

# 4200 PSI peak pressure 4.0 GPM high flow rate 150-gallon onboard water tank SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State

**Brand:** simpson
**Price:** R298757
**Availability:** ✅ In Stock

## Summary

> 🚀 Power, Portability & Precision — Clean Like a Pro, Anywhere!

## Quick Answers

- **What is this?** SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State by simpson
- **How much does it cost?** R298757 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/41238824-simpson-cleaning-trailer-mounted-4200-psi-gas-pressure-washer-4)

## 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

- • **Plug-and-Clean Setup:** Arrive, connect, start, and dominate your cleaning job—no fuss, no downtime, just results.
- • **Massive Water Capacity:** 150-gallon tank means longer cleaning sessions without constant refills—work smarter, not harder.
- • **Ultimate Job Site Mobility:** DOT-certified trailer with rugged 12-inch tires for smooth towing and easy maneuverability across any terrain.
- • **Commercial-Grade Powerhouse:** Honda GX390 electric start engine delivers reliable, effortless ignition every time.
- • **Pro-Level Accessories Included:** 100-ft kink-resistant hose, 5 quick-connect nozzles, and ergonomic spray gun with safety lock for precision and comfort.

## Overview

The SIMPSON Trailer-Mounted Pressure Washer combines a commercial-grade 4200 PSI, 4.0 GPM CAT pump with a Honda GX390 electric start engine, mounted on a DOT-certified trailer featuring a massive 150-gallon water tank and a 100-foot kink-resistant hose. Designed for contract cleaners, mobile detailers, and municipalities, it offers rugged mobility, professional-grade accessories, and quick job site setup to maximize productivity and minimize downtime.

## Description

This powerful SIMPSON mobile pressure washing system will handle all your commercial jobs. It is perfectly suited for contract cleaners, mobile detailers, municipalities and resorts. The trailer is dot certified as an over-the-road pressure washer system. Job-Site set-up is a snap. Pull up to the work area, connect the spray gun, start the engine and begin cleaning. Designed to surpass expectations, the SIMPSON mobile pressure washer 4200 PSI at 4. 0 GPM is a self-contained cleaning machine. Engineered to utilize the power and performance from top of the line SIMPSON pressure washers matched with the portability of a utility trailer. The 95003 is run by a Honda engine and comes with a 100’ hose, an ergonomic spray gun and 5 Quick-Connect nozzles. This mobile system brings a cleaning solution into the field where a water supply isn’t there. This powerful SIMPSON mobile pressure washing system will handle all your commercial jobs. It is perfectly suited for contract cleaners, mobile detailers, municipalities and resorts. The trailer is dot certified as an over-the-road pressure washer system. Job-Site set-up is a snap. Pull up to the work area, connect the spray gun, start the engine and begin cleaning. Engine - 3 Year Limited Commercial Warranty | Pump - 5 Year Limited Warranty | Frame - 1 Year Limited Warranty

Review: System works Great, Shipping was difficult but desertcart got it figured out - Shipment was shipped with a shipper who does not deliver to my area. I had to drive an hour to the shipping depot, ABF Freight to pick up the system. The people at ABF were very helpful. desertcart never provided an accurate tracking number. I had to call desertcart numerous times but finally connected with someone with some power and they worked it out and refunded $400 for the hassle. Requires a 2 inch ball. You have to attach the trailer tongue to the trailer. I worked about 20 minutes tearing the shipping container apart and installing the tongue. The trailer tows very well. 75 miles an hour and no issues. System powered up quickly, all of the materials are very high quality. Works Great!!
Review: !!! DO NOT BUY THIS UNIT !!! - DO NOT BUY THIS UNIT. IT MIGHT SEEM LIKE A GOOD DEAL BUT GOOD LUCK GETTING IT REGISTER FOR ON THE ROAD. SIMPSON WILL NOT TAKE RESPONSIBILITY NOR WILL desertcart. Again don't buy this unit. You will not be able to get a permit to tow it. Simpson doesn't have a dealer license number and desertcart can't provide a bill of sale!!!

## Features

- Commercial Performance: Easy-to-start with its Honda GX390 commercial series electric-start engine and CAT Industrial triplex plunger 4200 PSI 4.0 GPM pump, this system is perfect for contract cleaners, mobile detailers, municipalities, and resorts
- Easy Job Site Setup: Pull up to the work area, connect the spray gun, start the engine and begin cleaning; DOT certified as an over-the-road pressure washer system
- Includes Quality Simpson Accessories: Monster 3/8-inch x 100-foot high-pressure hose is kink- and abrasion-resistant; 5 Quick connect nozzle tips: 0°, 15°, 25°, 40° and Soap; 31-inch steel lance/wand; Professional spray gun with safety lock-out
- Durable Construction: The 9-foot long trailer includes a 4-foot by 5.5-foot platform for the pressure washer and water tank; 12-inch premium 6-ply tires deliver ease of maneuverability across rugged terrain; 2000 lb. single axle construction
- Important Notes: 49-State Compliant; Engines are tested in factory and may contain minimum residual fuel/oil or fuel odor; Fuel tank capacity: 6.4 quarts (6.1 liters); Water tank size: 150 gallons

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00WAWN67U |
| Best Sellers Rank | #347,820 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,554 in Pressure Washers |
| Brand | SIMPSON |
| Color | Electric Start |
| Customer Reviews | 3.8 3.8 out of 5 stars (13) |
| Global Trade Identification Number | 00879399001901 |
| Hose Length | 100 Feet |
| Item Weight | 630 pounds |
| Item model number | 95003 |
| Manufacturer | SIMPSON |
| Maximum Flow Rate | 4 Gallons Per Minute |
| Power Source | Gasoline |
| Product Dimensions | 80"L x 72"W x 52"H |
| Specification Met | dot certified |
| Tank Volume | 150 Gallons |
| UPC | 879399001901 |

## Product Details

- **Brand:** SIMPSON
- **Color:** Electric Start
- **Global Trade Identification Number:** 00879399001901
- **Hose Length:** 100 Feet
- **Item Weight:** 630 Pounds
- **Maximum Flow Rate:** 4 Gallons Per Minute
- **Power Source:** Gasoline
- **Product Dimensions:** 80"L x 72"W x 52"H
- **Specification Met:** dot certified
- **Tank Volume:** 150 Gallons

## Images

![SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State - Image 1](https://m.media-amazon.com/images/I/412kHfh0ahL.jpg)
![SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State - Image 2](https://m.media-amazon.com/images/I/41aPucpuc9L.jpg)
![SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State - Image 3](https://m.media-amazon.com/images/I/41itj2+JFrL.jpg)
![SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State - Image 4](https://m.media-amazon.com/images/I/51SOFk3SCML.jpg)
![SIMPSON Cleaning Trailer-Mounted 4200 PSI Gas Pressure Washer, 4.0 GPM Gas Power Washer, Electric Start Honda Engine, Cold Water, 150-Gallon Water Tank, 100-ft. Hose, 49-State - Image 5](https://m.media-amazon.com/images/I/51qZwXORACL.jpg)

## Questions & Answers

**Q: Does it come with the hose reel in picture?**
A: Yes

**Q: Can i replace teh chemical injector on the model 95002 If so what is the part number?**
A: Yes, there are rebuild kits available for the injector on the CAT pump. Please reach out to our customer service team at 877-362-4271 or email us at productsupport@simpsoncleaning.com. Please have your CAT pump number available when you contact the customer service team. Thank you!

**Q: Can the water tank be used for batch mixing or is it strictly a buffer tank?**
A: It's your tank. Do with it as you wish, but I would not recommend it as you will eventually be running SH and soap through your pressure washer pump and it kill it.

**Q: Is there anywhere to carry a surface cleaner?**
A: it should fit between the machine and water tank

## Customer Reviews

### ⭐⭐⭐⭐⭐ System works Great, Shipping was difficult but Amazon got it figured out
*by T***Y on March 4, 2020*

Shipment was shipped with a shipper who does not deliver to my area. I had to drive an hour to the shipping depot, ABF Freight to pick up the system. The people at ABF were very helpful. Amazon never provided an accurate tracking number. I had to call Amazon numerous times but finally connected with someone with some power and they worked it out and refunded $400 for the hassle. Requires a 2 inch ball. You have to attach the trailer tongue to the trailer. I worked about 20 minutes tearing the shipping container apart and installing the tongue. The trailer tows very well. 75 miles an hour and no issues. System powered up quickly, all of the materials are very high quality. Works Great!!

### ⭐ !!! DO NOT BUY THIS UNIT !!!
*by M***T on August 10, 2022*

DO NOT BUY THIS UNIT. IT MIGHT SEEM LIKE A GOOD DEAL BUT GOOD LUCK GETTING IT REGISTER FOR ON THE ROAD. SIMPSON WILL NOT TAKE RESPONSIBILITY NOR WILL AMAZON. Again don't buy this unit. You will not be able to get a permit to tow it. Simpson doesn't have a dealer license number and Amazon can't provide a bill of sale!!!

### ⭐⭐⭐⭐⭐ Power washer
*by M***. on June 7, 2023*

Loved the product - super fast delivery and power washer works great!

## Frequently Bought Together

- SIMPSON Cleaning 95003 Mobile Trailer 4200 PSI Cold Water Gas Pressure Washer System, 4.0 GPM, Electric Start Honda Engine, Includes Spray Gun and Wand, 5 Nozzles, 3/8-in. x 100-ft. Hose, (49-State)
- Simpson Cleaning 82232 Dial-N-Wash Adjustable Pressure Regulator for Pressure Washers, Rated up to 4500 PSI
- STA-BIL Pump Protector - Protects Pressure Washer Pumps and Other Internal Components During Storage, Next Gen Anti-Freeze and Lubricant Formula, 4oz (22007)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-15*