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Description

How do you use viscous oil grease on a pressure washer?

Viscous oil grease lubricates and protects pressure washer components like the pump seals and pistons, to ensure smooth operation and extend their lifespan. You apply a small amount of the grease to these points using a grease gun or a suitable applicator. 

Proper lubrication with viscous oil grease helps reduce friction, prevent corrosion, and maintain the efficient functioning of the pressure washer's moving parts.

Why do you need them?

The intense forces generated by the pump and other moving parts leads to increased friction, heat buildup, and wear over time. Viscous oil grease helps reduce friction and heat, and minimise the wear and tear on these components. 

The grease forms a protective barrier against moisture, contaminants, and rust, which can affect the performance and longevity of the pressure washer. 

Is it a genuine spare part? 

This viscous oil grease is a Karcher product.  Your pressure washer can work good-as-new in cleaning surfaces.

Manufacturers Part Number:

  • 6.964-092.0

Alternative Part Numbers:

  • 69640920

EAN Number:

  • 4002667311990

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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)

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7 Customer Review(s)

Essential item in stock

Needed this in a hurry as forgot to order. Was in stock and delivered quickly. Thank you.

By Bob Woods - Bournemouth
19th Apr 2023

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Good product

The tube is the right quantity for replacing the old lubricant and is perfect for a routine service of the piston chamber.

By John Barker - Bournemouth
13th Dec 2022

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Genuine part,

Easy to apply, work it into bearings, and moving parts, jobs a gudin, fair price

By Glenn Rostron - Cramlington
18th Aug 2021

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Top Quality

I purchased this lubricant as it is the recommended oil/grease for my K4 Karcher pressure washer. Yes it's expensive but after replacing my control head on the washer and losing all the original oil, I wanted to make sure It was done properly, hence bought this at the same time as the control head from RansomSpares.

By Adrian Jones - Leighton Buzzard
30th Jun 2021

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Karcher Viscous Oil

Quality value for money product and takes the guess work out of how much oil to put in.

By Damian McCahery - Tamlaght
28th Apr 2020

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Save being held ransomed by local dealer!

Local dealer wanted minimum 2 weeks and 40% of the pressure washer's cost to repair 1 broken valve. I spent 10% of their quote with Ransom for ALL the wear parts air mailed to me in a week. Up and running and extremely satisfied! Thank you! 3 stars for ease of fitting because you have to pull the thing apart, par for the course. 4 stars for value only because there are slightly cheaper sellers around but Ransom had everything I needed for the job.

By Arthur - Somewhere in Asia
9th Mar 2018

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Grease for Karcher motor

When disassembling a Karcher 4.600 pressure pump the orbital motor plate that engages the pump head valves and springs is exposed. Karcher oil (more like grease) is required for lubrication of metal on metal. Ransom spares provide this product unlike some other spares providers. The 50 ml tube is more than enough and can also be used to lubricate the various 'o' rings within the pump assembly. Glad I bought it!

By Laurence patterson - Skipton
24th Jun 2017

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