Product Review: SIMPSON Cleaning Trailer-Mounted 3200 PSI Gas Pressure Washer, 2.8 GPM Gas Power Washer, Honda Engine, Cold Water, 100-Gallon Water Tank, 100-ft. Hose, 49-State
Introduction
If you’re looking to buy trailer mounted pressure washer equipment that combines commercial power with on-the-go convenience, the SIMPSON Cleaning Trailer-Mounted 3200 PSI Gas Pressure Washer deserves a serious look. This SIMPSON pressure washer is designed for contractors, municipal crews, mobile detailers and anyone who needs a reliable, heavy-duty cleaning solution in remote locations. In this review I’ll cover what makes this trailer-mounted pressure washer stand out, when to buy, and how it compares to similar systems.
👉 Check the latest price on Amazon
What is this product?
The SIMPSON Cleaning Trailer-Mounted 3200 PSI Gas Pressure Washer is a self-contained, DOT-certified trailer pressure washer system. It pairs a Honda GX200 engine with a CAT Industrial triplex plunger pump rated at 3200 PSI and 2.8 GPM. Built as a cold water pressure washer, the unit includes a 100-gallon onboard water tank and a 100-ft. hose, making it perfect when a water source isn’t available on site. In short, it’s a commercial trailer pressure washer that brings high flow and portability together.
Quick Specs
- Pressure: 3200 PSI pressure washer
- Flow Rate: 2.8 GPM pressure washer
- Engine: Honda GX200 (commercial series)
- Pump: CAT Industrial triplex plunger
- Water Tank: 100-gallon water tank pressure washer
- Hose: 100-ft hose pressure washer (50′ supplied hose + trailer storage)
- DOT-certified trailer for over-the-road transport
Key Features
Commercial Performance
- Honda engine pressure washer — easy-to-start Honda GX200 commercial series engine with proven reliability.
- CAT pump — Industrial triplex plunger pump rated at 3200 PSI and 2.8 GPM for high flow cleaning.
- Designed for contractors, municipal crews, mobile detailers, resorts and more.
Easy Job Site Setup
- DOT certified as an over-the-road pressure washer system — pull up, hook up the spray gun and start cleaning.
- Includes a 31-inch steel lance/wand and a professional spray gun with safety lock-out.
Quality Accessories & Durable Construction
- Monster 3/8″ x 50-foot high-pressure hose — kink- and abrasion-resistant.
- Five quick-connect nozzle tips: 0°, 15°, 25°, 40° and Soap.
- 7-foot long trailer with a 4′ x 4′ platform and 12″ premium 6-ply tires for rugged terrain.
Important Notes: Engines are tested at the factory and may contain minimal residual fuel. Fuel tank capacity is 3.3 quarts (3.1 liters). Warranty: Engine – 3 Year Limited Commercial, Pump – 5 Year Limited, Frame – 1 Year Limited.
Detailed Description
The SIMPSON trailer pressure washer 3200 PSI at 2.8 GPM is a self-contained cleaning machine engineered to combine the durability of SIMPSON pressure washers with the portability of a utility trailer. The model comes equipped with the Honda engine and CAT industrial pump to deliver consistent cold water pressure cleaning, making it an excellent commercial trailer pressure washer for heavy-duty tasks.
This trailer-mounted pressure washer includes a 50′ high-pressure hose and ergonomic spray gun with five quick-connect nozzles, allowing operators to switch between concentrated and wide fan patterns quickly. The onboard 100-gallon water tank means you can perform remote jobs — from parking lot maintenance to fleet and heavy equipment cleaning — without needing a nearby water source.
If you’re searching to buy gas power washer with Honda engine or to order trailer pressure washer with water tank, this SIMPSON unit is optimized for both performance and convenience.
Pros and Cons
Pros
- Powerful and reliable: 3200 PSI and 2.8 GPM deliver high flow cleaning for tough jobs.
- Portable: Trailer-mounted design with 100-gallon tank and 100-ft hose makes it ideal for remote work.
- Commercial-grade components: Honda GX200 and CAT triplex pump ensure longevity.
- Complete kit: Comes with quality hoses, nozzles and accessories ready for immediate use.
Cons
- Higher upfront cost compared to consumer units — but built for commercial performance.
- Cold water only — not suitable if you need hot water cleaning for grease-heavy applications.
- Trailer adds size to transport and storage requirements.
Who Should Buy This Product
This model is perfect if you need a portable trailer-mounted power washer for fleet and equipment cleaning or a heavy duty trailer pressure washer for construction site cleaning. It’s ideal for businesses that require a 100-gallon onboard water tank pressure washer for remote jobs and operators who want a gas powered commercial pressure washer with Honda engine and hose reel. If your work includes parking lot maintenance, municipal cleaning, or mobile detailing, consider this unit when you search where to buy trailer-mounted power washer or shop 2.8 gpm pressure washer.
Comparison with Similar Products
Compared to smaller walk-behind or skid-mounted units, the SIMPSON trailer-mounted pressure washer offers higher portability and an integrated water supply. Against other trailer systems, it stands out for its Honda engine and CAT pump combination — a balance of reliability and serviceability. If you need a hot water solution, look for hot-water trailer models; however, for general heavy cleaning the 3200 psi 2.8 gpm trailer mounted pressure washer with 100 gallon tank will usually outperform smaller systems in speed and area coverage.
When to choose a different model
- Choose a hot water pressure washer if cleaning heavy grease and oil.
- Choose a skid or truck-mount if you need to maximize payload or fit inside a confined vehicle.
- Consider financing options if the upfront cost is a concern — many dealers and online stores offer payment plans (search finance trailer-mounted pressure washer).
Frequently Asked Questions
Is this unit road legal?
Yes — the trailer is DOT certified as an over-the-road pressure washer system.
Can I use this for mobile detailing?
Absolutely. The 100-gallon water tank pressure washer and long hose make this ideal for mobile auto detailing and fleet cleaning where water access is limited.
Where can I buy it?
You can purchase this SIMPSON pressure washer on Amazon or through authorized SIMPSON dealers. If you’re researching to purchase SIMPSON pressure washer or looking to buy trailer mounted pressure washer options, check current listings and shipping options.
Final Verdict
The SIMPSON Cleaning Trailer-Mounted 3200 PSI Gas Pressure Washer is a strong choice if you need a dependable commercial trailer pressure washer that combines high flow (2.8 GPM) and high pressure (3200 PSI) with portability and an onboard water supply. It’s particularly well suited for contractors, municipalities, and mobile service providers who need to buy a trailer-mounted pressure washer that performs on tough jobs and remote sites.
Recommended for: Anyone who needs a robust trailer mounted cold water power washer for parking lot maintenance or a high flow 2.8 gpm pressure washer for heavy cleaning.
Learn more about other top models in our Gas Pressure Washer review.