Simpson Pro 3500 PSI Pressure Washer Review

Simpson Pro Series 3500 PSI Pressure Washer

The Simpson Pro 3500 PSI Pressure Washer Delivers Plenty of Bang For Your Buck

We’ve been testing Simpson pressure washers for years and have come to appreciate their quality and value. As one of the largest, most vertically integrated gas-powered pressure washer manufacturers in North American, they’re getting even better with new Simpson Pro series pressure washers. But what sets the Simpson Pro 3500 PSI pressure washer apart from the competition? Let’s find out!


  • Compact profile
  • Excellent hose and accessory management
  • Lightweight design
  • Easy setup
  • Low-oil shutoff


  • No significant drawbacks

Simpson 3500 PSI Pressure Washer Performance

Simpson Pro pressure washer in action
  • Max PSI: 3500
  • Flow Rate: 2.5 GPM
  • Nozzles: 0°, 15°, 25°, 40°, and soap nozzles

Cleaning Power

The pressure washer’s Simpson CRX210 engine and AAA Triplex pump are capable of producing 3500 PSI with a peak flow rate of 2.5 GPM. That’s a good middle ground between entry-level gas or electric pressure washers.

In terms of what you can clean, it’s a long list. PVC fences, concrete, paint prep, siding, vehicles, and heavy equipment cleaning are all on the menu with plenty of other applications hanging around as well. The biggest difference you’ll notice between this Simpson PS61374 pressure washer and something like the Simpson Pro Series 4000 PSI model is how fast you can clean, rather than what you can clean. That simply boils down to PSI vs GPM when considering which model is best suited for your needs.

Simpson 3500 PSI Pressure Washer Design Notes

  • Model: Simpson PS61374
  • Engine: Simpson CRX 210 engine
  • Fuel Type: Gasoline
  • Oil Type: 10W-30
  • Oil Capacity 20.5 oz.
  • Tires: 10 in. pneumatic


Simpson opted for a corrosion resistant, powder-coated steel tube frame construction. This is especially crucial towards extending the working life of your machine when incorporating chemicals into your cleaning process.

Simpson Pro 3500 PSI Pressure Washer

Personally, the handle height is a little low for me. It stands 25 inches tall, but I certainly can’t discount the fact that it is compact. Its 21-inch wide open-frame design keeps the engine very easy to access. Getting to areas you frequently access, such as the oil reservoir, is simple. Not to mention, the hose and accessory management systems are top-notch, allowing you to stay organized and keep your work area effortlessly neat.


Simpson Pro AAA pump

The AAA triplex pump featured on this Pro series is built for heavy-duty professional use. These pumps undergo CETA CPC-100 certification testing for pressure and flow, giving us a tremendous amount of confidence that the ratings Simpson gives are what we’ll experience in the field. Moreover, the PSI is adjustable, so you can customize it to fit your needs.

Simpson CRX Engines

The CRX engines are designed for heavy-duty professional and residential use. It has all the key features Pros looks for, including easy starting, reliable performance, and a low oil engine shutdown. The team that developed the CRX engine is so confident in its long-term reliability that it includes a 5-year warranty—the best in the industry and two years longer than what Honda offers.

Simpson Pro Pressure Washer

These engines aren’t just for pressure washers, though. There are also generators, semi-trash pumps, and chemical pumps that come with CRX engines. Plus, they’re an excellent option when it’s time to repower other equipment.

Simpson 3500 PSI Pressure Washer Price

The Simpson PS61374 retails for $579 and comes with a 25-foot 5/16-inch MorFlex hose as well as 0°, 15°, 25°, 40°, and soap nozzles. Simpson backs it with a 3-year limited engine warranty, 5-year limited pump warranty, 10-year limited frame warranty, and a 90-day limited accessory warranty.

The Bottom Line

Overall, what we’re looking at is a power plant and pump that span the needs of both Pros and serious DIYers. There are some limitations when it comes to using cleaning implements, such as a large surface cleaner, but this class is incredibly versatile at home and around the jobsite. If you’re in the market for a compact and capable pressure washer, look no further than the Simpson Pro 3500 PSI pressure washer.

Related articles