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Description

How does a control head conversion kit on a Karcher pressure washer work?

The control head on a Karcher pressure washer operates by receiving user input and transmitting signals to adjust settings and activate functions.

This kit allows you to convert the control head of your pressure washer from a 26mm to a 22mm fitting, expanding compatibility with a wider range of accessories and attachments. Whether you need to switch between different spray wands, nozzles, or hoses, this conversion kit offers a convenient solution.

When do you replace your control head?

If the buttons, dials, or switches become unresponsive, erratic, or fail to function properly, it suggests a need for control head replacement. 

Visible signs of physical damage, such as cracks, breakage, or significant wear and tear, can also compromise performance and safety, warranting replacement. 

Persistent functional issues like inconsistent pressure adjustments, erratic behaviour, or frequent error messages indicate a malfunctioning control head that should be replaced. 

Is it a genuine spare part? 

This control head conversion kit by Karcher is a genuine pressure washer replacement part. Your pressure washer can work good-as-new in cleaning surfaces. 

Manufacturers Part Number:

  • 9.002-011.0

Alternative Part Numbers:

  1. 90020110

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Safety note:

Warning: Always unplug any appliance from the electricity supply before carrying out any work or testing on it.

Latest Product Review(s)

2 Customer Review(s)

Good part but fiddly to fit

My washer sprung leaks from both the control head and the bit beneath with three chambers. If Karcher wanted a product that would last they'd have made both from metal but that is just my opinion. It wasn't clear to me which control head I needed as both appeared to do the job and this one was called the conversion kit. I couldn't find information anywhere about why the conversion was needed so I chose this control head only because it looked like the one with a leak. Fitting is fairly straight forward but be careful to keep hold of all the spacers and fiddly bits attached when you take it apart! I lost one for a week and found it at the end of my workbench. Then tightening the whole assembly needs three hands! I have a torque wrench and tightened the screws down to the same torque as I used in days past on car cylinder heads. All fixed now and the washer is much more vigorous that I recall! It must have been leaking for a long time.

By Chilichap - Radstock
26th Jun 2023

Overall

Quality

Value

Ease of Fitting

Exactly what was needed

Exactly what was needed , The parts replaced the existing one perfectly and I now have a fully functioning machine after a little bit of tweaking. Well worth the effort. I will definitely use ransom spares again.

By Nick Emens - Horsham
12th May 2020

Overall

Quality

Value

Ease of Fitting

Questions And Answers

1 Answer(s)
I only need the plastic part not the metal part do you sell them separately?
By Nick - Sussex - 14/04/2020
Hi Nick, this is only available complete with the metal casing.
By Jordan - Staff Member
1 Answer(s)
Hi, I have a K4.200 (1.637-400EU) with a 26mm housing (measured right under detergent ). Some others are 22mm... Does this part replace both original parts? Thanks a lot for your help, Ben
By Ben - Auxerre - 29/03/2021
Hi Ben, thanks for your message. I can confirm this is correct for the 26mm head.
By Jordan - Staff Member
1 Answer(s)
Hi, Will this part fit my machine, it is a : K4 Full Control 1.324-002.0 Thank You Lee
By Mr Lee - Bury St Edmunds, Suffolk - 07/02/2023
Hi Lee, the part required for your model is RS823259.
By Jordan - Staff Member
1 Answer(s)
I have a Karcher K4 1.324-032.0 will this fit. The part number stamped on the one I have removed is 9.075-073.0
By Maria Vaughan - Templecombe, SOMERSET - 13/02/2023
Hi Maria, the part you require is RS823259.
By Jordan - Staff Member
1 Answer(s)
Hi, I Have a karcher k4 full control, model number 1.324-009.0 , the part number on the original part is 9.075-073.0 is this new part compatible? Thank you
By Philip - Ipswich - 13/02/2023
Hi Phillip, the control head required for your model is RS823259.
By Jordan - Staff Member

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