STIHL RB 400 Dirt Boss Gas Pressure Washer

When you need a gas-powered pressure washer built for top performance and daily use, the STIHL RB 400 Dirt Boss Residential Pressure Washer delivers dependable cleaning power. Driven by a Kohler 6.5 HP 196 cc engine, it produces 2,700 PSI at 2.7 GPM, making it well suited for tackling stubborn dirt on driveways, decks, siding, and other demanding residential cleaning tasks.

Designed for durability, the RB 400 Dirt Boss features a brass manifold pump with stainless steel valves and ceramic-coated pistons for long service life. A cast-iron engine liner and built-in low-oil shutdown help protect the engine, while the easy-start pump system and integrated detergent injector simplify operation and improve cleaning efficiency.

The pressure washer includes a 25-foot no-kink flex hose for extended reach and reduced repositioning. It is compatible with a wide range of optional accessories such as surface cleaners, water brooms, nozzle kits, hose extensions, gutter cleaners, and official STIHL cleaning agents. Built to handle tough jobs day after day, the Dirt Boss lives up to its name with consistent, high-pressure performance.