We’re no strangers to Simpson pressure washers, and, based on our experience, they provide plenty of quality and value. Indeed, they’re among the largest gas-powered pressure washer manufacturers, who also put a lot of research and development into the design of their CRX engines. With this in mind, our reviewers put the Simpson Pro Series 3700 PSI Pressure Washer (PS61370) to the test.
Did it stand out from the competition?
Simpson Pro Series 3700 PSI Pressure Washer Performance
Cleaning Power
Driving the PS61370 is the brand’s OEM CRX225 engine. This power plant delivers 3,700 PSI with a peak flow rate of 2.5 GPM. That level of force is appropriate for medium- to heavy-duty cleaning applications such as decks, paint preparation, walkways, and numerous other professional cleaning services.
- PSI: 3700 PSI
- Flow Rate: 2.5 GPM
- Nozzles: 0°, 15°, 25°, 40°, and soap nozzle
When comparing the 3700 PSI to the Simpson Pro Series 4000 PSI model , the main distinction isn’t so much what you can clean as it is how fast you can do it. When deciding which model is best suited to your needs, it all comes down to PSI vs GPM .
Simpson Pro Series 3700 PSI Pressure Washer Design
Profile
In terms of construction, Simpson utilizes a corrosion-resistant, powder-coated steel tube frame. This choice of material should extend the tool’s structural and operational lifespan – especially when using cleaning additives.
- Model: Simpson Pro Series 3700 PSI PS61370
- Engine: CRX 225 engine
- Fuel Type: Gasoline
- Pump: AAA Triplex
- Hose Type: Steel-braided Morflex 5/16 in x 50 ft Hose
- Oil Type: 10W-30
- Oil Capacity: 20.48 oz.
- Tires: 10 in. pneumatic
Our reviewers liked the PS61370’s compact, open-frame design. It provided easy access to the engine and other critical components, such as the oil reservoir and pump. Moreover, the hose and accessory management systems help with organization.
Pump
If you’re looking to tackle medium-duty professional and/or residential tasks, you’ll appreciate the AAA triplex pump on this 3700 PSI Pro series pressure washer. Also worth noting is that these pumps undergo CETA CPC-100 certification testing for pressure and flow.
Furthermore, the PSI is adjustable, so you can customize it to fit your needs.
Simpson CRX Engine
Simpson has been building its own engines for years. They’ve built their CRXs for heavy-duty professional and residential use.
This one has all the key features Pros look for, including easy starting, reliable performance, and a low oil engine shutdown. And they have a lot of faith in their product. This model has a 5-year warranty, which is the best in the industry and two years longer than Honda’s.
However, these engines aren’t just for pressure washers. You’ll also find them in generators, semi-trash pumps, and chemical pumps that come with CRX engines.
Simpson Pro Series 3700 PSI Pressure Washer Price
The PS61370 sells for $649 and includes a 50-foot 5/16-inch MorFlex kink- and abrasion-resistant hose, as well as 0°, 15°, 25°, 40°, and soap nozzles. In addition to the aforementioned 5-year warranty, Simpson provides a 10-year warranty on the frame.
The Final Word
The Simpson Pro Series 3700 PSI Pressure Washer impressed our reviewers. It demonstrated respectable cleaning power at a level that’s appropriate for Pros and DIYers. There are some limitations when it comes to using cleaning implements, such as a large surface cleaner, but you’ll still find loads of applications at home and on the jobsite.
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