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A premium pressure washer that combines excellent performance with durable build quality for long-lasting value.

RB 400 DIRT BOSS® is rated 4.6 out of 5 by 50.
Rated 2 out of 5 by from Pump went out after about 25 hours. Pump went out after approx 25 hrs of use. Machine is leaking from pump and now wont even stay running.
Date published: 2019-08-01
Rated 4 out of 5 by from Expensive but good I bought this product a few weeks ago. So far, it's done everything I needed. I wash my truck with it, first using a foam cannon, then switching to a 25 degree fan tip. I washed all my outdoor furniture with it, and got great results. I also purchased the rotary cleaner to wash my driveway, porch, and back decks. It was excellent for all of these. The rotary head makes quick work out of flat surfaces, getting the job done in half the time. The machine cranks on the first pull most times, never needing more than 2 or 3 pulls. The power is consistent, no back firing, the engine runs smooth and is quieter than others I've used. It's not as powerful as other pressure washers on the market at the same price point but is powerful enough for my needs. The 2.7 gpm seems to make a big difference in terms of cleaning power. That said, I have two negative things to say about this machine: it's expensive, and it's cumbersome. I was willing to pay the price for Stihl's name. This is my 5th piece of Stihl equipment, and I will always look to them first when purchasing a new piece of equipment. But it does hurt to fork out that much for a pressure washer to be used around the house. As far as it being cumbersome, it is very wide, making it extremely difficult to use on stairs. This could be helped with a longer hose, but after spending $$$ on the pressure washer and $$$ on the rotary cleaner, I just was not willing to spend any more. I'm counting on this product to last a long time. That is why I spent the $$$ on it. To anyone in the market, I can say that this machine will do the job around your home. If you plan on washing driveways and sidewalks, the rotary tool is a must. You can also use the rotary on wood surfaces, but it did remove some of the stain from my deck.
Date published: 2019-07-29
Rated 5 out of 5 by from Beyond Expectations What else is there to say? This machine is way beyond expectations. I had an electric power washer for the cars and tried it on the fence, worked okay but needed more power…so after researching I chose the Stihl Dirt Boss. I have a weed whacker from Stihl, blower, chainsaw and a lawn I have a Dirt Boss. This unit fires up within 2 pulls and is ready for work. Always ready and dependable. It does a tremendous job on cleaning off old stain and making the fence ready for new stain. I highly recommend the Dirt Boss for any residential homeowners and light commercial jobs. You will not regret this purchase in my opinion.
Date published: 2019-06-30
Date published: 2019-06-21
Rated 5 out of 5 by from Starts very easy usually on first or second pull Starts very easy, you don’t have to pull on it for hours like the other brands
Date published: 2019-06-03
Rated 5 out of 5 by from Vear easy to use This washer is very easy to use and very easy to start It starts on the first pull every time
Date published: 2019-05-29
Rated 5 out of 5 by from It’s Stihl .... so it’s awesome! I’ve had the RB400 for a year now. It’s worked flawlessly every time I’ve used it. Only issue I had is one tire was flat when I bought it. I aired it up and it was flat again next use. BUT, no biggy because I’m not rolling it miles down the street. One thing I did, and I wish Stihl did is put an hour meter on it. They aren’t that expensive and how are you supposed to know when you have hit 30 hrs to change your oil if you don’t install one? I just think that Stihl should add this. But again, I will always buy Stihl products because they ARE awesome!
Date published: 2019-05-19
Rated 5 out of 5 by from STIHL RB 400 Just got it a week ago. Used it for the 1st time Fri 5-3-19. Ran it for a 1.5 hours no leeks started 1st pull great pressure. The STIHL shop where I bought it from where friendly and showed me how to start and run it. Before I used it for the 1st time I read the manual and only thing I don't like is it said that don"t let pressure washer run longer then two min when not under load. Manual said that it is hard on pump. So when moving the washer a person should shut it off and then restart it when moved. Very happy with the RB 400. also in manual stated you should change oil after the 1st 5 hours of run time.
Date published: 2019-05-04
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