Will This Part Fit My Appliance?

Choose your brand from the list below to check your model compatibility.

Start typing your model number below to check compatibility.

Description

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

The pump head operates using a reciprocating piston system. When the pressure washer is turned on, a motor drives a crankshaft that moves pistons back and forth inside the pump head. As the pistons retract, they create a vacuum that draws water from the inlet. 

This kit allows you to convert the control head of your pressure washer to a 22mm fitting, expanding compatibility with a wider range of accessories and attachments. 

When do you replace your pump head?

Replace the control head if the buttons, dials, or switches start to behave erratically, unpredictably, or improperly. 

Cracks, fracture, or substantial wear and tear are all obvious physical damage indicators that should be replaced since they put performance and safety at risk. 

Irregular pressure adjustments, erratic behaviour, or frequent error messages, point to a damaged control head that has to be replaced.  

Is it a genuine spare part? 

This pump 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:

  • 9.002-010.0

Alternative Part Numbers:

  • 90020100

Will this part fit your appliance?

Use our compatibility checker, Click here.

Finding your model number:

TBC

Safety note:

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

Latest Product Review(s)

1 Customer Review(s)

Repair your Karcher?

I never thought I would say this, but I really quite enjoyed stripping down the Karcher Pressure washer, finally diagnosing the issue, identifying and ordering the replacement part, fitting it and then testing it - The pump is made up of metal and plastic parts - the part which had failed is made of plastic which is prone to hairline cracks and can be difficult to see. Full marks to Ransom Spares for having plenty of real detail on their site. I would recommend using Youtube to build some knowledge on how to take your Karcher apart - there is plenty of material to review. You will need some basic tools including Star Driver, Hex Key/Hex Wrench, and screw drivers. At £30, this is definitely worth the investment, and the part was delivered in a timely manner.

By Matt Digweed - East Cholderton
24th Aug 2021

Overall

Quality

Value

Ease of Fitting

Questions And Answers

1 Answer(s)
I have a Karcher K4 GB when connected up and switched on it runs continuously with out stopping. Seems like it is not reaching the pressure, this is without operating the lance trigger, when the lance trigger is pressed the pressure is poor. Do I require a new control head??
By Ian - Basingstoke - 22/05/2021
Hi Ian, I'm afraid we cannot diagnose faults. I'd recommend contacting Karcher or an engineer directly to see if they're able to advise.
By Jordan - Staff Member

Be the first to ask a question for this product.

Ask a new question

Customers Also Viewed