











A Powerful Mid-Range Kärcher Pressure Washer with Water-Cooled Brushless Induction Motor
The Karcher K 4 Power Control Flex Pressure Washer — also known as the K 4 Power Control Flex, K4 Power Control Flex and K-4 Power Control Flex — is a premium mid-range model in the Kärcher Home & Garden lineup. Offering a significant performance upgrade over the K 2 and K 3 series, the Karcher K 4 is ideal for frequent and more demanding outdoor cleaning tasks around medium and large homes.
At the heart of the Karcher K4 Power Control Flex Pressure Washer is Kärcher’s advanced water-cooled brushless induction motor, engineered for longer service life, lower operating temperatures and quieter, smoother performance. This makes it exceptionally reliable for cleaning patios, decking, vehicles, brickwork, stonework, fencing and heavily soiled outdoor areas.
The Power Control system allows the user to set the correct pressure for each task directly on the spray lance, while the Flex hose technology delivers improved durability and ease of movement. For homeowners who need stronger cleaning capability without stepping up to the K 5 range, the Karcher K4 Power Control Flex offers an ideal balance of performance, portability and efficiency.
Why should I buy a Karcher K 4 Power Control Flex Pressure Washer?
The Karcher K 4 Power Control Flex combines excellent cleaning performance with a durable water-cooled brushless induction motor, making it perfect for regular, high-demand cleaning tasks. Its Flex hose, improved water flow and reliable pressure output make it a smart mid-range choice for serious home and garden cleaning.
Product Key Features
- Water-cooled brushless induction motor – runs quieter, lasts longer and delivers consistent high performance.
- Mid-range Kärcher model – stronger and more capable than the K 2 and K 3 for demanding cleaning tasks.
- Power Control system – pressure can be adjusted directly on the spray lance.
- Flex anti-twist hose – improved manoeuvrability and increased durability during use.
- Versatile cleaning capability – tackles patios, vehicles, fencing, brickwork, decking and outdoor furniture with ease.
Accessories Included
- Karcher G160Q Power Control Quick Connect Gun – for easy connection to high-pressure hoses and pressure setting indication
- Karcher PremiumFlex Quick Connect High-Pressure Hose 8m – For easy connection and anti-twist and flexible high-pressure hose connection
- VP 145 Vario Lance – Variable pressure settings for different surface types
- DB 145 Dirt Blaster Lance – A higher-performance lance for cleaning hard surfaces
- G3/4" Appliance Adaptor – For connection to Karcher Universal Hose Connectors or other click to connect hose connections
| Cleaning Specifications | |
| Theoretical Area Performance | 30 Metres² / Hour |
| Pump Specifications | |
| Water Flow Rate | 420 Litres / Hour |
| Operating Pressure | 110 Bar |
| Max. Pressure | 130 Bar |
| Variable Pressure | Yes |
| Pressure Adjustment | Via VP145 Vario Lance |
| Max. Water Feed Temperature | 40° C |
| Power Specifications | |
| Motor Type | 2-Pole Water-cooled Induction Motor |
| Powered By | 240 Volt Mains |
| Power Rating | 1.8 kW |
| Cable Length | 5 Metres |
- Stock status: Available to Order – Backorder
- SKU: 310-043485
- Weight: 17.76kg
- Dimensions: 591.00mm x 397.00mm x 370.00mm