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Stihl RB 400 DIRT BOSS®

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 cast-iron engine liner and a built-in shutdown feature when the oil level is low. Other premium features include an easy start pump system, detergent injector system, 25' no-kink flex hose and a wide range of cleaning accessories. Optional accessories include rotary surface cleaner, water broom, nozzle options, hose extensions, gutter cleaner, aluminum wand extension, pivot coupler and official STIHL cleaning agents. If your job calls for daily power washing, the DIRT BOSS® handles the pressure with ease. Check it out now at our Dealership.


Price may vary based on location and options.

Stihl RB 400 DIRT BOSS® 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.

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.

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.

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

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.

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.

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Stihl RB 400 DIRT BOSS® Specifications
DISPLACEMENT196 cc 12.0 cu. in.)
FUEL CAPACITY3.6 L (3.8 qt.)
HOSE LENGTH25'
WATER FLOW620 L/h (2.7 gpm)
WATER PRESSURE2,700 psi
CLEANING UNITS7,290
WEIGHT41 kg (90 lbs)
DIMENSIONS HANDLE DOWN724 x 699 x 654 mm (28.5 x 27.5 x 25.75")
DIMENSIONS HANDLE UP724 x 699 x 1003 mm (28.5 x 27.5 x 39.5")

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