Karcher O Rings

ToneControl

I have  a Karcher K7
the O ring on one end of the high pressure hose has snapped and fallen off
They charge a fortune for replacements

Does anyone know where to get one cheap, or the correct dimensions?

Hoof

Any decent hardware shop will sell you a big pack of generic o-rings in various sizes for a couple of quid

Emp_Fab

Let me Google that for you....

https://www.amazon.co.uk/d/DIY-Tools/Kärcher-2-880-990-0-karcher-O-Ring/B007Y5HL6U

ToneControl

Emp_Fab said:

Let me Google that for you....

https://www.amazon.co.uk/d/DIY-Tools/Kärcher-2-880-990-0-karcher-O-Ring/B007Y5HL6U

I've spent an hour on google, came up with several different sets and sizes, none of which actually specifies the dimensions

there is a set for £12-14 that is definitely for my model, but contains loads of other sizes too

Using my micrometer, it looks to be 8mm externally, and about 1.5mm thickness, but that is the damaged one

Emp_Fab

Depending on where you live, your best bet is to go to a 'fasteners' kind of place that will do you a handful of assorted sizes for a couple of quid.  If you want something delivered, what about this ? - Fits the K7 according to the page.. http://www.ebay.co.uk/itm/Pack-Of-5-Karcher-Lance-Hose-Nozzle-Spare-O-Ring-Seal-Genuine-/301084484562?hash=item461a08a3d2:g:uqcAAOxyOlhS6l45

hywelg

Bearing specialist will sell them. Usually theres somewhere in any big town.

https://simplybearings.co.uk/shop/Seals-O-Ring-Seals-NITRILE-O-Rings/c19_4501_4705/index.html

ToneControl

hywelg said:

Bearing specialist will sell them. Usually theres somewhere in any big town.

https://simplybearings.co.uk/shop/Seals-O-Ring-Seals-NITRILE-O-Rings/c19_4501_4705/index.html

That was the way I was going, I bought a load of Viton O rings years ago to quiet down rattly valves from these guys
https://www.polymax.co.uk/o-rings/rubber-viton-oring/ - so I didn't want to pay £12 for a few

I'm just wondering what the accurate size is for these, since the one I'm measuring is a bit mangled

equalsql

I've got a karcher thst i was given by my father in law. The main wiggle-plate bearing disintegrated. The replacement cost was insane.. a complete and utter rip off. Hence I've bought a replacement by another company.
The old one is in bits in my garage so you are welcome to have any parts from it that you want..including hoses and wands.
PM me if interested

ToneControl

Emp_Fab said:

Depending on where you live, your best bet is to go to a 'fasteners' kind of place that will do you a handful of assorted sizes for a couple of quid.  If you want something delivered, what about this ? - Fits the K7 according to the page.. http://www.ebay.co.uk/itm/Pack-Of-5-Karcher-Lance-Hose-Nozzle-Spare-O-Ring-Seal-Genuine-/301084484562?hash=item461a08a3d2:g:uqcAAOxyOlhS6l45

that one looked promising, but the lance picture differs from mine, and the full set of O rings for the K7 contains several sizes, so I wasn't 100% it would be the correct one

ToneControl

I just drove past a machine-mart, dropped in and bought a mixed box of 100s of nitrile O rings,
including 20 that fit perfectly, and the pressure hose now works again

Cheers chaps