KARCHER K3 vs KARCHER K4 Pressure Washer Comparison

Torn between buying a KARCHER K3 or KARCHER K4 pressure washer?

Karcher/Karcher manufacture quality pressure washers, with the K3 Power Control and K4 Power Control Flex reflecting just that. We compared the Karcher K4 Power Control Flex and Karcher K3 Power Control, analysing features, power, performance, and reviews.

How K3 Power Control and K4 Power Control Flex Pressure Washers Work

Karcher K3 and Karcher K4 pressure washers use a 1600 W and 1800 W (Watt) electric motor to draw up water, which is pressurised to 120 and 130 bar, respectively. Water is forced through KARCHER Power Control K3 and KARCHER Power Control Flex K4 jet nozzle lance, creating a powerful stream of water used to clean dirty surfaces.

The K3 and K4 can clean cars, vans, paving stones, decking, and all types of outdoor items. With 120 and 130 bars of pressure, the Karcher K3 and Karcher K4 are built to blast away stains, grime, moss, mud, and dirt from hard surfaces.

KARCHER K3 and KARCHER K4 Motor Wattage and Bar Pressure

Karcher K4 and Karcher K3 pressure washers power is measured by their wattage and pressure (bar/force). Typically, pressure washers range between 1200 – 3000W, with the Karcher K4 rated at 1800 W and Karcher K3 measuring 1600 W.

For bar pressure, the Karcher Power Control K3 is rated maximum 120 and the Karcher K4 Power Control has max 130, which is plenty for thorough cleaning.

• Does K3 KARCHER produce cordless pressure washers? – Yes – 1.117-220.0, KHB 6, OC 3, KHB 4-18
• Does K4 KARCHER produce cordless pressure washers? – Yes – OC 3, 1.117-220.0, KHB 4-18, KHB 6

Water Flow Rate

Water flow rate of the KARCHER K3 and KARCHER K4 pressure washer is measured in litres per minute or hours, (l/min – l/h), and informs how much water the machine goes through. KARCHER K3 and KARCHER K4 have flow rates of 6.33 l/min and 7.00 l/min, making them powerful at washing and rinsing.

• K3 flow rate: 6.33 l/min
• K4 flow rate: 7.00 l/min

Hose Length

The high-pressure hose length of K4 and K3 electric pressure washers affects reach. The KARCHER K3 comes with a 7m hose, and the KARCHER K4 measures 8m. Both K3 Power Control and K4 Power Control Flex pressure washer are compatible with hose extensions if required.

K3 Power Control and K4 Power Control Flex Accessories

KARCHER K3 Power Control and KARCHER K4 Power Control Flex pressure washers come with adjustable lance nozzles (varying spray patterns) and are compatible with Karcher and Karcher accessories, including surface cleaners for patios, decking, and driveways, extension wands, brushes, detergent dispensers, snow foam, etc.

• Karcher K3 Supplied accessories: Power spray lance, dirt blaster, high pressure handling hose, garden hose adapter
• Karcher K4 Supplied accessories: G 160 Q Power Control Gun, Dirt Blast Lance, Vario Power Lance

Brand	Model	Power (W)	Pressure (bar)	Hose (m)	Prices
KARCHER	K3	1600 W	120	7	£139.00
KARCHER	K4	1800 W	130	8	£249.00

Where to buy the K3? – Buy direct from KARCHER, or see best buy

Where to buy the K4? – Buy direct from KARCHER, or see best buy