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OneWash 2000-3100PSI 2.8GPM

Model #6602

Starting At

$399.00 MSRP Where To Buy

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The new OneWash™ from Generac. It’s four power washers in one. The OneWash features the largest, most powerful engine in its class. And the innovative PowerDial™ provides total control at the turn of a dial, so you can easily adjust the intensity of the spray to clean a wide range of surfaces, all with a single, easy-to-use control.

PowerDial™ Variable-Pressure Control

Provides total control at the turn of a dial. Easily adjust the intensity of the spray to clean a wide range of surfaces with a single, easy-to-use control.

Folding Handle

Lets the already compact OneWash take up even less space in your garage or shed during storage. Makes it easy to transport, too.

Drainable Detergent Tank

Integrated 3/4 gallon tank with drain plug provides convenient onboard storage for cleaning detergents. Can be quickly emptied and cleaned with a garden hose.

Axial Cam Pump with Easy Access Hose Connections

Easily make hose connections without having to kneel on the ground.

Additional Features

Generac 212cc OHV Engine – Largest, most powerful engine in its class delivers 2000 - 3100 PSI at 2.8 GPM.

Consolidated Control Panel – All controls are efficiently located in a single location

Comfort-grip Handle – Provides greater comfort for ease-of-use. Easy-to-pull inverted trigger reduces fatigue. Rear hose connection on spray gun provides better balance and comfort.

30’ High Pressure Hose – Extended range for improved use

Oversized Never Flat Tires – Improved mobility on rugged terrain

Three Quick Click™ Nozzle Tips Included – 0 degree, 25 degree, and soap

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 This product is extremely versatile Product is extremely versatile. Works great for cars to wood decks. The only problem is the soap dispenser. It does not seal and leaks badly.
Date published: 2017-10-04
Rated 5 out of 5 by from Solid product for residential use I purchased the OneWash based on the consistent reviews online listing product quality and it did not disappoint. It performs as advertised and even exceeded expectation. My only thought of a missing piece or part was not providing soap blaster and turbo nozzles that are included with lower cost models. Overall I am very happy with my purchase decision.
Date published: 2017-09-26
Rated 4 out of 5 by from need servicing I have model #0064360 accd to the book but online shows #6602. I am having a hard time getting a carburetor kit for it. It leaks around the bowl. The unit was starting OK but quit when closing the choke knob. I took the carb apart and put it back together properly. I may need a new carb. Where can I buy one and what is the part number? A diagram of the carb would be nice. When it works it is fantastic compared to other washers.
Date published: 2017-09-11
Rated 5 out of 5 by from attention to enginering and quality are obvious I researched for a pressure washer online and looked at several makes.The Generac One Wash really stood out with it's features and obvious attention to details . The engineering and quality of materials are top notch. Rated for residental use but pro quality is definitely in mind.
Date published: 2017-08-29
Rated 5 out of 5 by from This is the one to buy! We've had other power washers and this is the best! We have used it so far on decks, sidewalks, patio furniture, and siding at our place on the lake. Easy to assemble. Much easier to start than other brands. Not too noisy. Great on gas. Very powerful. Great features like the folding handle for easy storage, different pressure choices for a variety of surfaces to clean, easy access to hose hook up, detergent tank instead of bottles, big wheels that make moving it around easier, and the long high pressure hose that we didn't have any problems with kinking and could reach the second level. We would definitely recommend a Generac!
Date published: 2017-08-09
Rated 5 out of 5 by from Money well spent This is the 4th pressure washer I have owned and is hands down the best. In my opinion it is the top of the line pressure washer for any home owner. I have a ten acre place, a mini farm if you will and it does the job. I just finished using the OneWash to power wash my standing seam metal roof on our two story farm house. It was terrific in removing the old tar/asphalt coating and blew away any other debris. Yet you can dial it back for areas where the 3100 psi is too much. I have never pulled the starter rope more than 4 times before it came to life. The only negative remark is the top part of the folding handle is plastic. I'm sure it will break eventually. When it does I will make a metal replacement.
Date published: 2017-08-06
Rated 5 out of 5 by from Easy to use Unit was easy to assemble. Started right up and stripped our deck very quickly. I am impressed.
Date published: 2017-08-01
Rated 5 out of 5 by from Convenient and works great This unit came packed well, assembled easy. It's very powerful for home use. I like the large diameter wheels. The handle folds down for compact storage.
Date published: 2017-07-27
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OneWash Residential 6602 is rated 4.8 out of 5 by 355.
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Pressure Washer Accessories

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