STIHL RB 400 DIRT BOSS 4.8kW Petrol High-Pressure Washer Cleaner (4790-012-4604)



Out of stock


When you need a high-pressure cleaner that delivers top performance and can stand up to daily use, choose the STIHL RB 400 DIRT BOSS®. It features a powerful 196 cc (6.5 hp) engine that can output 2,700 psi of water pressure at 2.7 gallons per minute. It also features the durability STIHL products are known for, with 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. The RB 400 DIRT BOSS® also features an easy start pump system and convenient detergent injector system. And with its 7.5m no-kink flex hose, you can clean more area without having to move the machine. Finally, the pressure cleaner uses a wide range of optional cleaning accessories, including rotary surface cleaner, water broom, nozzle options, hose extensions, a gutter cleaner, aluminum wand extension, pivot coupler and official STIHL cleaning agents. When you need to demolish dirt on a daily basis, the DIRT BOSS® handles the pressure with ease.


  • Comfortable holders for nozzles and hose
    Comfortable holders to store the high pressure nozzles and high pressure hose.
  • Easy to Start
    Engine can be started without releasing the pressure from the pump, hose and gun.
  • Comfortable holder for the high pressure gun
    Comfortable holder and parking position for the high pressure gun.
  • Detergent from external reservoir
    Detergent intake to suck detergent from any external reservoir.
  • Foldable handlebar
    For compact storage or transport.


  • Rated pressure (psi): 2,700
  • Permissible pressure (bar): 185
  • Water flow rate (gpm): 2.7
  • Power (kW): 4.8
  • Displacement (ccm): 196
  • High pressure hose (ft): 25
  • Nozzles angle (°): 15 / 25 / 40 / 65
  • Weight (kg): 41
  • Sound pressure level LpA (dB(A)): 93.5
  • Sound power level LWA (dB(A)): 10.2