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Pressure washer K4 Compact

The powerful K4 Compact is small and easy to transport making it ideal for all cleaning tasks around the home. This model comes complete with Kärcher's long life water-cooled motor.

Kärcher Pressure washer K4 Compact
  • Kärcher Pressure washer K4 Compact
  • Kärcher Pressure washer K4 Compact
  • Kärcher Pressure washer K4 Compact
  • Kärcher Pressure washer K4 Compact
Retailer search:


  • Pressure washer: For cleaning bicycles.
  • Pressure washer: For cleaning gardening machines and tools.
  • Pressure washer: For cleaning garden, patio or balcony furnitures.
  • Pressure washer: For cleaning fences and smaller garden paths or flagstones.
  • Pressure washer: For cleaning motorcycles and scooters.
  • Pressure washer: For cleaning small cars.
  • Pressure washer: For cleaning garden and stone walls.

The K4 Compact Pressure Washer combines power and energy efficiency – its innovative water-cooled induction motor ensures enhanced performance and longer life. The K4 Compact has a Quick Connect hose system, eliminating kinking and reduces set up times to make it even easier to use. Its compact dimensions allow for convenient transportation and storage, while the aluminium telescopic handle and wheels ensures excellent mobility. Ideal for cleaning all around the home, the K4 Compact includes a Vario Lance, detergent suction hose and Dirtblaster Lance which provides up to 50% greater cleaning power than a standard high pressure lance. An impact-resistant recyclable plastic casing and fine mesh water filter prevent dirt particles from damaging the motor and three-piston axial-flow pump, whilst a safety valve prevents pressure overload. All Kärcher K4, K5 and K7 Pressure washers can work using a static or harvested water source drawn either using a Kärcher suction hose and filter, or connected to a water butt tap. The K4 Compact comes with a 3 year guarantee.

Features and benefits
Pressure washer K4 Compact: Easy to transport
Easy to transport
The small, robust pressure washers in the Compact series have two carrying handles for easy transportation. These practical, compact devices take up minimal space and can be stored quickly and easily, even in the boot of a car.
Pressure washer K4 Compact: Outstanding performance
Outstanding performance
The K4 Compact Home’s state-of-the-art water-cooled motor will impress you with its long life, performance and high quality results.
Pressure washer K4 Compact: Quick Connect
Quick Connect
The high-pressure hose is easy to manoeuvre. With the Quick Connect system, you can click quickly in and out of the pressure washer and gun, saving you time and effort.

Technical data

Pressure (bar/MPa) 20 - up to 130 / 2 - up to 13
Flow rate (l/h) max. 420
Max. water feed temperature (°C) max. 40
Voltage (V) 230
Power rating (kW) 1.8
Area performance (m²/h) 30
Weight without accessories (kg) 10.7
Dimensions (L x W x H) (mm) 516 x 295 x 282


  • High-pressure gun, Standard Quick Connect
  • Vario Power spray lance
  • Dirt Blaster spray lance
  • High-pressure hose, 6 m
  • Quick Connect on machine
  • Detergent application via, Suction
  • Telescopic handle
  • Water-cooled motor
  • Integrated water filter
  • Adapter garden hose A3/4"
Pressure washer K4 Compact
Pressure washer K4 Compact

K4 Compact is rated 4.4167 out of 5 by 12.
Rated 5 out of 5 by from Ideal I bought this for general house and garden cleaning, and also for washing my boat. Being a compact model it is easy to store and throw in the back of the car to take to the marina. Having the long pressure hose is a real bonus when washing a car or boat. A water cooled motor means I don't have to worry too much when using it, it doesn't overheat like some pressure washers.
Date published: 2015-09-24
Rated 5 out of 5 by from Ease of use packs up nice and neat Bought as a replacement for an older Karcher the K4 Compact meets all my demands with out all the extras. As a taxi driver my vehicle requires cleaning 2/3 times weekly the K4 make easy work of it.
Date published: 2015-10-02
Rated 3 out of 5 by from Troublesome I bought this model because it said it could be used with water from a rain collecting butt. First time I used it, worked well. Second time, it refused to start.
Date published: 2015-10-09
Rated 5 out of 5 by from Powerful pressure washer in a compact package. I bought this after checking reviews and looking in detail at the specification. If exactly met my requirements, powerful but not so powerful it would damage anything I wanted to use it for.
Date published: 2015-09-24
Rated 5 out of 5 by from Solid reliable little workhorse. I bought this pressure washer for occasional use to clean the driveway and side path. So far it's been reliable and does what you'd expect it to.
Date published: 2015-09-30
Rated 5 out of 5 by from It Dose it all very good Nice nice nice good good good Excellent .Would recommend to all. This is number (2) Karcher ive had. With goodfeatures.
Date published: 2015-09-25
Rated 4 out of 5 by from just what I wanted Have been trying out my new K4 Compact, and am totally delighted. Easy set up, works brilliantly straight out of the box.
Date published: 2016-05-03
Rated 5 out of 5 by from Excellent machine It is powerful yet compact. Robust and efficient. Couldn't ask for more at this price.
Date published: 2015-09-30
  • 2016-05-24T08:23CST
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