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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 5 out of 5 by from Looks Solid Just purchased this unit but haven't tried it yet ...still too cold in Canada..but I can tell U it is well built witt good features such as good pump .pressure hose.strong frame and has a good power rating. I researched this purchase to death and I believe this unit has the most bang for the I am well versed in power equipment ..retired mechanic , but time will tell.
Date published: 2017-03-15
Rated 5 out of 5 by from House Reno- pressure washing I typically purchase a house that needs work and fix it up for resale. As you would imagine both house and concrete could use a good bath. The 3100 pressure washer is fantastic.
Date published: 2016-12-31
Rated 5 out of 5 by from runs like a dream I own two other brands of washers and they've all quit after less than one year this one is two years old and still working excellent
Date published: 2016-07-26
Rated 5 out of 5 by from great features at a reasonable price! I purchased this product mainly for home use. I especially like the fact that this washer is built to last. This is a commercial grade washer with a triplex pump and with its ceramic pistons are durable, dependable and maintain great pressure. In addition, the pump can be serviced if needed. However, with normal maintenance, this unit will last a homeowner a very long time. It does everything it advertises and more and I highly recommend it.
Date published: 2016-01-20
Rated 5 out of 5 by from Great performance for the price Does a great job on everything I have tried. Simple to operate, easy to start and no problems. I like features like shut off from gas tank to carb to help avoid gunking it up if don't use for awhile. I use additive to gas to prevent this too but want to be careful. I had to get used to releasing pressure by triggering the spray gun if I shut off to move and then went to restart but not a big deal. Have a Generac generator used in a business which has probably been used 3-4 days a week for past 3 years with no problems so I expect this pressure washer will be trouble free too.
Date published: 2015-12-06
Rated 5 out of 5 by from product has great design and durable Bought this washer and have used it on multiple things from blasting paint off concrete to my car and tractor and my home soap hose gives me a variety of options love this washer!!!!!!!!!
Date published: 2015-11-30
Rated 5 out of 5 by from quiet and runs nice pump apears to be durable hose and wand storage needs improvement mine is broken already. I think its a little bulky than it needs to be a little more compact for storage and movement through doorways would be benificial. it seems to have sufficient power and durability, runs smooth quietly
Date published: 2015-11-14
Rated 5 out of 5 by from Great machine Bought this week and just used it first today.Better experience than I even imagined.Starts easy.Washes great.Rolls good on rough yard like mine.I cant wait to finish up the cleaning later on.With the pump connections where they are makes everything easier to use and to move unit around.Excellent value/price/quality
Date published: 2015-10-18
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3100PSI Commercial 6590 is rated 4.9 out of 5 by 16.
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Maximize your investment and maintain your Generac pressure washer with a variety of accessories.