I kind of stuck now been looking for ages and have had no joy. I need the little plastic wheel that pops on to the window mechanism like a little ball joint the little plastic wheel goes inside the runner and the bottom of the window has anyone got one or now where to get one please ????

 

I reckon I've got several of those in the shed. I'll have a look

 

cheers mate

 

Can anyone help me with this please?