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Karcher HD 9/23 DE Professional Diesel Pressure Washer 230 Bar
The Kärcher HD 9/23 DE is a professional diesel pressure washer delivering 230 bar of cleaning power, designed for demanding outdoor cleaning tasks in locations without mains electricity. Powered by a robust Yanmar L 100 N diesel engine, this cold water high-pressure cleaner operates completely independently of electrical supply, making it ideal for remote sites, agricultural applications, construction projects and facilities maintenance where power access is limited or unavailable.
The self-priming capability enables the HD 9/23 DE to draw water from unpressurised sources such as ponds, lakes, water tanks or storage containers, providing complete operational flexibility where mains water supply is not accessible. This diesel pressure washer features a durable metal frame construction and puncture-proof wheels engineered to withstand daily use in tough site conditions whilst maintaining permanent mobility across uneven terrain.
The HD 9/23 DE incorporates professional features for efficient operation including the EASY!Force high-pressure gun which utilises the recoil force of the high-pressure jet to reduce operator holding force to zero, minimising fatigue during extended cleaning sessions. EASY!Lock quick-release fasteners enable setup and dismantling five times faster than conventional screw connections, whilst integrated pump protection features including a large water filter and thermostat valve ensure reliable long-term performance. The machine includes onboard accessory storage and practical expansion options such as hose reel attachment kits and crane-lifting frame upgrades.

Features and Benefits:
• Diesel powered for complete independence from electrical supply
• Yanmar L 100 N engine for reliable performance
• Self-priming capability draws water from ponds, lakes and water tanks
• Delivers 230 bar water pressure for powerful cleaning
• Robust metal frame construction for daily use in demanding conditions
• Puncture-proof wheels guarantee permanent mobility on rough terrain
• EASY!Force gun eliminates recoil for controlled, fatigue-free operation
• EASY!Lock quick-release connectors enable rapid assembly and disassembly
• Large water filter protects the pump from contamination
• Thermostat valve prevents pump overheating
• Onboard accessory storage for organised tool management
• Compatible with optional hose reel and crane-lifting frame attachments
Specifications:
Power: Diesel
Engine: Yanmar L 100 N
Flow rate: 400 - 930 l/h
Operating pressure: 40-230 bar / 4-23 MPa
Dimensions (L x W x H): 800mm x 700mm x 800mm
Weight: 104.3kg
Contents:
HD 9/23 DE Diesel Pressure Washer
Easy!Force Advanced Trigger Gun
High Pressure Hose (15m)
Spray Lance (1050mm)
Power Nozzle
Pressure Washer Help
To help determine the type of pressure washer required it is important to consider the size of your cleaning task and level of duty, i.e. how big is the cleaning object and how often will you need to clean it? Below is an explanation of the two main types of pressure washer. Whilst bar pressure is important the overriding factor in cleaning power is the water flow rate. More water = better cleaning.
Jargon Buster:
• Bar or PSI: Bar is the most common measure of pressure. PSI = bar x 14.5.
• Bar (max): This is the pressure achieved when the machine is first turned on
• Bar (rated) pressure: This is the operating water pressure of the machine.
• Motor size (kW): Motor size indicates power providing the machine runs efficiently.
• Flow Rate (l/h): Higher flow rates enable you to clean large areas or objects faster
Did You Know:
Pressure Washers use up to 80% less water than garden hosepipes.
Pressure Washers are not subject to hosepipe bans if used for safety reasons, or if a suction hose is used to pull water from a harvested source. i.e. not the water mains. They are also not subject to a ban if used for commercial reasons, for example to maintain cleanliness, hygiene or company image.
Important things to remember when using your pressure washer:
• Always use an RCD when using electrical products in connection with water.
• Never use a non-return valve at the pressure washer connection to a hose pipe.
• Never drive over or lay items on high pressure hoses to avoid damage.
• Your water supply hose should be a min of several meters long and unwound from its reel.
• If you are using an extension lead, check that it is rated at min of 13 amps and fully unwound from its reel.
Specifications
More Help
If you require more information or assistance with this product please consult the links below :
There is a Karcher Pro manufacturer warranty for this product which covers all manufacturing defects for the normal lifetime of the tool but does not cover wear and tear or damaged cause by misuse. This does not affect your statutory rights. For more details see <a href='/karcher-professional-warranty/warranty/126/' style='margin: 0; padding: 0;'><strong>Karcher Professional Warranty</strong></a>.
















