RB 400 DIRT BOSS® - $579.95 DSRP


Distributor Suggested Retail Price
RB 400

DSRP: $579.95

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

The STIHL RB 400 DIRT BOSS® pressure washer features a powerful 196 cc (6.5 hp) engine, delivering 2,700 psi of water pressure at 2.7 gallons per minute. It’s got the power you need for heavy-duty cleaning of sidewalks, driveways, decks and more. The RB 400 DIRT BOSS® is also built to last, including a brass manifold pump design, stainless steel valves and ceramic-coated pistons. There is also a c...Read More
Print Spec Sheets
RB 400 DIRT BOSS® Specifications
DISPLACEMENT 196 cc 12.0 cu. in.)
FUEL CAPACITY 3.6 L (3.8 qt.)
HOSE LENGTH 25'
WATER FLOW 620 L/h (2.7 gpm)
WATER PRESSURE 2,700 psi
CLEANING UNITS 7,290
WEIGHT 41 kg (90 lbs)
DIMENSIONS HANDLE DOWN 724 x 699 x 654 mm (28.5 x 27.5 x 25.75")
DIMENSIONS HANDLE UP 724 x 699 x 1003 mm (28.5 x 27.5 x 39.5")
Model Features
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    Easy Start Pump System
    The Easy Start Pump System features a pressure relief valve, allowing users to start the unit without any back pressure from the pump. It enables quick, easy starting with no hard cord pulls.
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    Stainless Steel High Pressure & Brass Detergent Nozzles
    This pressure washer includes stainless steel nozzles for use with high-pressure water and a brass nozzle for use with detergent. These premium nozzles are designed to resist corrosion and wear.
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    2-Piece Lance & Gun Assembly
    This pressure washer features an easy, convenient 2-piece lance and gun assembly. The lance design is also extended for better accuracy in tall applications.
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    Easy-Access Inlet & Outlet Water Connections
    Both inlet (water coming into the pump) and outlet (water going from the pump to the gun) connections are easy to access for faster setup
  • Zoom
    Automatic Fuel Shut-Off Valve
    This pressure washer features a combined on/off and fuel valve control. This allows the user to shut unit off and close fuel valve automatically for easy, no-mess transport.
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    Anti-Vibration System
    This pressure washer features a STIHL-engineered 4-point vibration isolation system. This reduces pump vibration during use for increased unit longevity.
  • Zoom
    View the RB 400 features.

Important Information
WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
Click to view the STIHL Limited Warranty Time Periods
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For Your Safety
  • Reusable Ear Plugs Zoom
    Reusable Ear Plugs
    Top-quality hearing protection you can keep in your pocket. NRR 27 Reusable Ear Plugs from STIHL feature multiple layers of air cushioning for superior noise reduction and long-lasting comfort. Their tapered design provides a secure seal that keeps you protected almost anywhere – from the shooting range to the job site. And thanks to the included nylon cord and carrying case, you can keep your ear plugs handy for the long haul.

STIHL Dealer Days are Ending Soon!

RB 400 DIRT BOSS® is rated 4.6 out of 5 by 19.
Rated 5 out of 5 by from Great product This is by far the best pressure washer I have ever owned, very dependable easy to start and use does a good job of washing.
Date published: 2018-05-18
Rated 5 out of 5 by from Awesome Great machine for the price. Starts right up. You cannot go wrong with Stihl
Date published: 2018-05-15
Rated 5 out of 5 by from A pressure washer to be proud of Great design, strong built, easy to crank, easy to maintain love it
Date published: 2018-05-05
Rated 5 out of 5 by from Love the unit This unit has plenty of power and does a great job.
Date published: 2018-04-11
Rated 5 out of 5 by from It's a Stihl When I saw Stihl was making pressure washers I new I had to be the first to add one to my Stihl collection on the farm. Very easy to start and use. It's quiet and powerful. The cart frame is solid. It's just a well built unit. The best part about the Stihl products I own is if I need saw blades, parts or service I have several local Stihl dealers within a few minutes drive. Why anyone buys the cheap, unreliable, throw away box store crap just doesn't make sense to me.
Date published: 2018-04-08
Rated 4 out of 5 by from It’s A Stihl Product I purchased it totally because of the brand. I own 3 other stihl tools and love all of them. The 400 is good but I’m used to more power from my washer. This has good power but not great power. I wish I had purchased the 600 for the power. Other then that I love it. It start very easy the first start usually take two pulls after the first time one pull is all it take.
Date published: 2018-03-05
Rated 5 out of 5 by from One pull Dealer told me if it needed more than two pulls to bring it back. Never had more than one pull to start. Reliable and easy to set up. Stihl, 'nuff said!
Date published: 2018-02-09
Rated 4 out of 5 by from What One Expects of Stihl: Quality Two pulls. One to turnover. The second to start. A pleasure. Reliable.Pull feature might be better placed to allow pull start without tipping PW.But everything else is a joy to work with. Size, compactness, storage, performance (it goes without saying), and accessories - all top notch.The steel brace holding the axels appears to be thin or improperly supported - mine bent just a little.
Date published: 2017-12-01
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