Pressure washer K 4 WCM

Powerful cleaning: The K 4 WCM with water-cooled motor is perfect for moderate dirt on vehicles, garden fences or bicycles.

The K 4 WCM impresses with a powerful water-cooled motor, which is characterised by a long lifetime. The pressure washer with 6-metre-long high-pressure hose was built for occasional use and moderate dirt. Thanks to the Vario Power spray lance (VPS) and dirt blaster, terraces, garden furniture and vehicles can be cleaned as required. The water pressure can be precisely adjusted to the specific object to be cleaned simply by turning the VPS. Moreover, the dirt blaster with rotating point jet ensures successful cleaning without any compromises even on stubborn dirt. All accessories can be stored directly at the device. A built-in water filter reliably protects the pump against dirt particles.

Features and benefits
Pressure washer K 4 WCM: Outstanding performance
Outstanding performance
The water-cooled motor impresses with its particularly long service life and high power.
Pressure washer K 4 WCM: Integrated detergent suction hose
Integrated detergent suction hose
Convenient and easy use of detergents. Kärcher detergents (available as an option) not only protect and care for the surface being cleaned but produce more efficient and longer-lasting results.
Pressure washer K 4 WCM: Tidy storage
Tidy storage
The hose, spray lance, trigger gun and cable can be stored directly at the device.
Quick Connect system
  • The high-pressure hose is easy to manoeuvre, clicking quickly in and out of the device and trigger gun. This saves time and effort.

Technical data

Supply voltage (V/Hz) 230 / 50
Pressure (bar/MPa) 20 - max. 130 / 2 - max. 13
Flow rate (l/h) max. 420
Area performance (m²/h) 30
Inlet temperature (°C) max. 40
Connected load (kW) 1,8
Power cable (m) 5
Colour Yellow
Weight without accessories (kg) 11,5
Weight incl. packaging (kg) 14,8
Dimensions (L x W x H) (mm) 369 x 329 x 901

Scope of supply

  • High-pressure gun: G 180 Q
  • Vario Power Jet
  • Dirt Blaster
  • High-pressure hose: 6 m
  • Adapter for A3/4" garden hose connector


  • Device-side Quick Connect
  • Detergent application via: Suction hose
  • Water-cooled motor
  • Integrated water filter
Pressure washer K 4 WCM
Pressure washer K 4 WCM
Pressure washer K 4 WCM
Application areas
  • Outside steps and large garden paths
  • Fences and small garden paths or paving stones
  • Garden, patio or balcony furniture
  • Garden tools and equipment
  • Medium-sized and estate cars
  • Motorbikes and scooters
  • Bicycles
Cleaning agents