Karcher K5 WCM Flex eco!Booster Pressure Power Washer | 1.324-406.0

• 2.1 kW water-cooled motor for sustained, frequent use
• 145 bar maximum pressure, adjustable from 20 bar via rotary control
• eco!Booster lance - 50% better cleaning than standard flat jet
• Dirt Blaster rotary nozzle lance for tough ingrained grime
• 10 m PremiumFlex high-pressure hose for comfortable reach
• 500 L/hr flow rate, covers up to 40 m² per hour
• Quick Connect push-fit system for fast lance and hose swapping
• Built-in water filter protects the pump long-term
• All accessories store onboard the machine
• Up to 5-year warranty with registration within 28 days
• Warranty: 2 years standard; 5 years with registration within 28 days of purchase (T&Cs apply)
• Dimensions: 901 x 329 x 369 mm

Kärcher K 5 WCM Flex eco!Booster Pressure Washer with 145 Bar and 10 m PremiumFlex Hose

Water-Cooled Motor Built for Regular, Sustained Use:

The K 5 WCM is powered by a 2.1 kW water-cooled motor (WCM) running on 230–240 V, 50 Hz, and delivers a maximum pressure of 145 bar with a flow rate of up to 500 L/hr. The water-cooled design extends motor life during longer cleaning sessions, making this machine well suited to homeowners tackling moderate to heavy outdoor dirt on a regular basis, covering areas of up to 40 m² per hour.

eco!Booster Lance for Improved Efficiency:

The included eco!Booster lance delivers 50% increased cleaning performance compared with Kärcher's standard flat jet, saving both water and energy in the process. It is designed for use on surfaces where a gentler but more effective wash is needed, such as garden furniture, rendered walls, and vehicle bodywork. Alongside it, the Dirt Blaster lance provides rotary nozzle power for tackling the toughest ingrained grime on paths, patios, and driveways.

10 m PremiumFlex Hose and Quick Connect System:

The 10 m PremiumFlex high-pressure hose gives comfortable reach around larger outdoor areas without needing to reposition the machine constantly. All connections use Kärcher's Quick Connect push-fit system, allowing the hose, gun, and lances to be swapped in and out quickly without tools. A built-in integrated water filter protects the pump from debris in the water supply, and all accessories store neatly onboard the machine when not in use.

Practical Setup and Onboard Storage:

The machine connects to a standard A3/4" garden hose connector via the included adapter and accepts water inlet temperatures of up to 40 °C. The 5 m power cable provides working flexibility, and the rotary power control lets you adjust pressure output to suit the surface being cleaned. The Kärcher Home & Garden app is available for setup guidance and cleaning tips.

Shop the full Garden & Outdoor range from Heavins.ie, with a wide selection of garden tools, outdoor cleaning equipment, and accessories available for delivery across Ireland.

Key Features

eco!Booster Lance - delivers 50% increased cleaning performance vs. standard Kärcher flat jet, saving water and energy.
Water-Cooled Motor (WCM) - 2.1 kW motor designed for durability during extended, frequent cleaning sessions.
145 Bar Maximum Pressure - adjustable from 20 to 145 bar via rotary power control to suit different surfaces.
10 m PremiumFlex High-Pressure Hose - gives comfortable reach around larger patios, driveways, and garden areas.
Dirt Blaster Lance - rotary nozzle for tackling the toughest ingrained grime on hard surfaces.
Quick Connect System - push-fit connection for fast, tool-free swapping of hose, gun, and lances.
Built-In Water Filter - integrated filter protects the pump from debris in the water supply.
500 L/hr Flow Rate - high throughput for covering larger outdoor areas efficiently.
Onboard Accessory Storage - all included accessories store neatly on the machine when not in use.
Up to 5-Year Warranty - 5-year manufacturer's guarantee available upon registration within 28 days of purchase.

Specifications

• Motor type: Water-cooled (WCM)
• Power: 2.1 kW
• Voltage: 230–240 V, 50 Hz
• Maximum pressure: 145 bar (14.5 MPa)
• Minimum pressure: 20 bar
• Maximum flow rate: 500 L/hr
• Area performance: 40 m²/hr
• Maximum water inlet temperature: 40 °C
• High-pressure hose length: 10 m (PremiumFlex)
• Power cable length: 5 m
• Noise level: 70 dB(A)
• Connection type: Quick Connect (push-fit)
• Detergent application: Via suction hose
• Colour: Yellow
• Dimensions (HxWxD): 901 x 329 x 369 mm
• Weight (without accessories): 12.6 kg
• Part number: 1.324-406.0
• Warranty: 2 years standard; 5 years with registration within 28 days of purchase (T&Cs apply)

What's Included in the Box

• 1x Kärcher K 5 WCM Flex eco!Booster pressure washer unit
• 1x G 180 Q gun
• 1x eco!Booster lance
• 1x Dirt Blaster lance
• 1x 10 m PremiumFlex high-pressure hose
• 1x Adapter for A3/4" garden hose connector

Setup and Care

Getting Started:

Connect the A3/4" adapter to your garden tap and attach the PremiumFlex hose to the machine using the Quick Connect push-fit system. Run water through the unit briefly before switching on to purge any air from the pump. The Kärcher Home & Garden app provides step-by-step setup guidance and surface-specific cleaning tips.

Choosing the Right Lance:

Use the eco!Booster lance for general surfaces such as garden furniture, rendered walls, and vehicle bodywork where a thorough but controlled wash is needed. Switch to the Dirt Blaster lance for heavily soiled concrete, block paving, and driveways where rotary nozzle power gives the best results. The rotary power control lets you dial pressure between 20 and 145 bar to match the surface.

Maintaining Performance:

Rinse the built-in water filter regularly to keep debris from entering the pump and to maintain consistent flow. After each use, run clean water through the system briefly to clear any detergent residue from the hose and lance. Store the machine with all accessories secured onboard to keep components in good condition between uses.

Winter and Long-Term Storage:

Before storing for winter, flush the pump thoroughly with clean water and allow it to drain fully to prevent frost damage to internal components. Store the machine in a dry, frost-free location with the hose coiled loosely to avoid kinking the PremiumFlex lining. Register your product at kaercher.com within 28 days of purchase to activate the full 5-year manufacturer's guarantee.

We are pleased to offer FREE delivery on orders over €499.00 to anywhere in the Republic of Ireland and Northern Ireland, and our Click & Collect service is FREE on all orders.

All items are shipped from the Athlone Warehouse in Co. Westmeath, Ireland so no import duties apply to the island of Ireland.

Delivery Costs to Republic of Ireland are €6.99 for orders Under €499.00

Same Day Dispatch €9.99
Orders placed before 12pm are dispatched the same working day, helping your items reach you sooner. Excludes bulky items.

Large Bulky Items
Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €39.99 for bulky items or €59.99 for extra bulky items to ROI

- We are now delivering to Northern Ireland with all delivery costs equal to the Republic of Ireland.

View our full Delivery & Collection information

Due to our valued customer feedback, we have updated and improved our Returns Policy.

We now offer an exhange or refund on goods purchased online, and returned 14 days after purchase. 

View our Full Returns Policy