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The Karcher HD 9/21 G Petrol Engine Cold Water Pressure Washer – also known as the Kärcher HD9/21 G and Karcher HD921G – delivers powerful, mobile cleaning performance wherever it is needed. Powered by the proven Honda GX petrol engine, this fully independent machine is built for demanding daily use in environments with no access to mains electricity.
Engineered around a robust tubular steel frame with large pneumatic tyres, the Karcher HD 9/21 G Petrol Engine Cold Water Pressure Washer excels on construction sites, agricultural yards, municipal work areas, roadside operations and plant hire applications. The highly reliable Honda GX engine ensures smooth running, excellent fuel efficiency, easy starting and long working life.
With a powerful 210 bar of working pressure, the Karcher HD 9/21 G handles heavy soiling on machinery, vehicles, tools, equipment, stonework and metal surfaces. The machine includes EASY!Force and EASY!Lock technology, designed to reduce operator fatigue and provide fast, secure accessory changes. A built-in suction hose allows water intake from tanks or natural water sources.
Why should I buy a Karcher HD 9/21 G Petrol Engine Cold Water Pressure Washer?
If you need a fully mobile professional pressure washer with strong cleaning performance and total independence from electrical power, the Karcher HD 9/21 G Petrol Engine Cold Water Pressure Washer, driven by the trusted Honda GX engine, offers durability, high pressure and reliable operation for tough outdoor workloads.
Product Key Features
- Honda GX petrol engine – offers proven reliability, strong performance and excellent fuel efficiency.
- 210 bar working pressure – delivers robust cleaning power for industrial and commercial tasks.
- Fully mobile design – tubular steel frame and large pneumatic tyres for stability on uneven surfaces.
- Independent operation – ideal for locations without access to mains electricity.
- EASY!Force and EASY!Lock – reduces operator fatigue and enables rapid accessory changes.
- Water suction capability – draws water from tanks or natural sources for off-grid cleaning.
- Detergent application capable – supports detergent suction for enhanced cleaning on stubborn grime.
Accessories Included
- Karcher EASY!Lock High Pressure Hose - 15 Metres
- Karcher EASY!Force Advanced High Pressure Trigger Gun
- Karcher EASY!Lock Spray Lance - 1050mm
- Karcher EASY!Lock Power Nozzle
- Karcher EASY!Lock Detergent Nozzle
- Karcher EASY!Lock Nozzle Nut & Protector
| Pump Specifications | |
| Water Flow Rate | 850 Litres / Hour |
| Operating Pressure | 210 Bar |
| Max. Pressure | 270 Bar |
| Variable Pressure | Yes |
| Detergent System | Low pressure - variable flow - suction pipe |
| Pressure Adjustment | Unloader Valve |
| Max. Water Feed Temperature | 60° C |
| Water Network Separation | None |
| Power Specifications | |
| Motor Type | Honda GX340 |
| Engine Starting Method | Pull Start |
| Fuel Consumption | 3.1 Litres / Hour |
| Fuel Tank Capacity | 6.1 Litres |
| Powered By | Petrol Engine |
| Power Rating | 8.0 kW |
- Availability:
- Weight: 156.49kg
- Dimensions: 845.00mm x 800.00mm x 926.00mm
- Part No.: 1.187-905.0
- Barcode: 4054278210568







































