The Karcher HD 9/21 G is self-sufficient in its use and completely mobile: Thanks to a built-in Honda petrol engine, you can use the HD 9/21 G from the HD Gasoline Advanced range independently of the power supply.
The ergonomic frame concept of the Karcher HD 9/21 G petrol-powered cold water high-pressure cleaner from the offers a high level of mobility. Protected by its stable frame, the machine can withstand adverse external conditions. The Honda petrol engine can reliably deliver electricity where no connection is available. And if a water connection is also unavailable, the machine is able to suck up water directly from lakes or ponds and convert it into a working pressure of 210 bar. So the pump does not overheat when in recirculation mode, the machine features a thermostat valve and a large water filter.
The EASY!Force high-pressure gun, makes use of the recoil force of the high-pressure jet to reduce the holding force for the operator to zero, also the EASY!Lock quick-release fasteners, make set-up and dismantling five times faster than with conventional screw connections. The HD 9/21 G also impresses with its well-designed operating concept, storage options and puncture-proof wheels which guarantee mobility. We offer you expansion options, for example the attachment kit for a hose reel and an additional cage frame which features eyelets to facilitate loading onto a crane.
Features and benefits

Maximum independence
Fitted with a reliable Honda or Yanmar motor for use without an external power supply. Can suck up water – e.g. from lakes or ponds – and use it for cleaning.

Optimum ease of use
The ergonomic frame concept makes transport on uneven ground easier. Storage options for all accessory parts directly on the machine. Puncture-proof wheels guarantee permanently high mobility.

Highly versatile
Optional cage frame with eyelets for crane loading and reliable protection of the machines. Hose reel attachment kit for shorter set-up available as an optional extra. Portable version with robust pipe frame specially designed for painters and plasterers (HD 728 B).For the toughest jobs |
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Specifications
Technical data
Flow rate (l/h) | 200 - 850 |
Operating pressure (bar/MPa) | 10 - up to 210 / 1 - up to 21 |
Engine type | GX 340/Petrol |
Weight (kg) | 63.8 |
Dimensions (L x W x H) (mm) | 870 x 725 x 1170 |
Equipment
- Trigger gun, EASY!Force Advanced
- High-pressure hose, 15 m
- Spray lance, 1050 mm
- Power nozzle
- Infinitely variable pressure and water flow control on the unit
- Petrol
Accessories
Thanks to automatic suction of the dirty water, the stainless steel FRV 30 Me Surface Cleaner makes surface cleaning more efficient in both inside and outside areas. Hot water cleaning up to 85°C.
For high-pressure cleaners with a flow rate of 350–600 l/h: new, robust and very high-quality foam cup lance with outstanding foam quality while consuming half as much cleaning agent.
DUO Advanced 1 cup foam lance with two-litre detergent tank and direct switching to high-pressure cleaning. Suitable for Kärcher pressure washers with a flow rate of 400 to 600 l/h.
Nozzle kit includes power nozzles and unions. For Kärcher surface cleaners (850 to 1100 l/h).
Machine-specific nozzle kit with Kärcher power nozzles and jet nozzle for FRV 30.
The dirt blaster with rotating pencil jet offers 10 times better cleaning performance. Ceramic nozzle and bearing ring for a long service life. Further data: Max. 300 bar, 30 MPa, 85°C.
Cleaning Agents
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