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3100PSI 2.8GPM

Model #6590

Starting At

$599.00 MSRP Where To Buy

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With a powerful Generac OHV horizontal shaft engine and professional-grade triplex pump, this 3100PSI power washer is just right for cleaning around the house, at work, or on the farm.

Professional-grade Triplex Pump

With features like ceramic-coated pistons, the triplex pump is designed for rugged duty and long life


This Generac engine provides maximum cleaning performance and reliability, and has low-oil shutdown to protect the engine


Take your pressure washer over even the most rugged terrain around the house, at work, or on the farm


Take up even less space in your garage or shed during storage, and transport the pressure washer even more easily

Additional Features

Pressure Control Valve – Provides complete control of water pressure for all applications

Brass Quick Change Fittings – Make hose connections even more quickly and effortlessly

35’ Steel-Reinforced Hose – Durable, non-marring hose will not leave scuff marks

Professional Spray Gun – Adjustable side handle provides precise control, and cushion grip and easy-to-pull trigger reduce fatigue and improve comfort during extended use

Welded Roll Cage Frame – Protects the engine and pump while providing grab bars for easier lifting

Five Quick Click™ Nozzle Tips Included – 0 degree, 15 degree, 25 degree, 40 degree, and soap applicator

Detergent Siphon Hose – Use a variety of cleaning solutions to improve results

The Power to

Concrete. Siding. Vehicles. And Much More.

Whether you're washing the driveway or prepping for a painting job, you need the right tool. Enter Generac pressure washers. Our customer research led us to engineer our pressure washers from the ground up, to meet your specific needs.

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Rated 1 out of 5 by from Pump went out with less then 3 hours of use I purchased this product for home use. The pump went out with less then 3 hours of use. I took the pressure washer to the authorized service center and was told Generac only warrantied their pumps for one year and my receipt was from 1 year 2 days.
Date published: 2018-08-23
Rated 5 out of 5 by from great product great product , cost a little more , but you pay for what you get . will keep everyone informed as the years go on , thanks
Date published: 2018-07-31
Rated 4 out of 5 by from Just got this I don't have much experience with this, but I am very satisfied with the ease of setup and the instructions for operations.
Date published: 2018-05-19
Rated 1 out of 5 by from Has never worked properly Won’t idle properly, continues to stall. Couldn’t get support from Generac and retailer won’t return it. Not a happy with the product or the level of customer service.
Date published: 2018-04-28
Rated 5 out of 5 by from Best for the price Love this pressure washer. Have one at the farm for the past 4 years. No problems. I had to buy one for use around my home. Easy to use and gets the job done.
Date published: 2018-04-19
Rated 5 out of 5 by from This product has excellent ratings. We purchased this power washer because of the overall features, durability and overall weight. Exceptional power washer with great features and sturdy platform. Assembly was very simple and directions were detailed. The pressure and ease of use are awesome,
Date published: 2018-04-12
Rated 5 out of 5 by from Well worth every penny! I am the Director of Buildings & Grounds for a school district- We have been in extreme need of a couple solid power washers that are versatile for several different needs. We clean sidewalks, equipment, vehicles, and several parts of the buildings' envelope with this power washer. It comes with several attachments/nozzles that really make it easy as far as choosing the right part for a job. The flat surface brush works really well on walls, sidewalk, and decking. Lastly, the power behind this 3200 is spot on. We have yet to run into anything we could not clean with it. Definitely recommend this washer for price, durability, and reliability!
Date published: 2018-04-10
Rated 5 out of 5 by from Hard working, durable, best bang for the buck in my opinion I am a painting contractor and I have used this pressure washer for multiple decks, walkways, walls, etc over two years now. It has loads of power, starts easily, love the 35' hose. I can run it for hours and it never skips a beat. I compared a lot of washers and chose this one due to commercial grade pump, hose length, nozzles, and reputation of the manufacturer. I haven't been disappointed. Only a minor fault - as with other reviewers, my holder for the nozzle broke during the first year. No complaints.
Date published: 2017-11-09
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3100PSI Commercial 6590 is rated 4.6 out of 5 by 25.
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Pressure Washer Accessories

Maximize your investment and maintain your Generac pressure washer with a variety of accessories.