Just wondered whether anyone would know the part number for the part mentioned in the subject line?
Do you know what I mean? Its the black cap thing which screws on behind your bulb when you replace one. It seals the bulb into the headlight and stops water etc getting in.
I appear to have lost mine and its now taken its tole on the plug which attached to the back of the bulb which supplies the power. Its all rotting away and falling apart!!

I went to my Renault dealer yesterday and he said he knew which part I meant and qupted me £1.46 for a new one. When I asked him if he was sure (because im pretty sure it shouldnt be as cheap as that), I was told "Yeah, the only rubber cap behind the headlight??"
As you can imagine i was pretty miffed by his remark, but I have given him the benefit of the doubt and am currently waiting for a call to say the part has arrived (just thought I would do a bit of info gathering while i wait).
Any ideas??
Thanks again