Hi, While getting ready to rmove headlight assembly, I noticed the plastic clips holding a top panel missing. There is a panel that extends the length of both headlights, attached by four plastic screws. Does anyone know what these screws are called and where I can purchase them?

 

Well you could search to find them? They are used on the Lincoln LS too so any Ford dealer can get them or would have them it stock.
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If I understood you correctly, you are talking about it:

XR812941

Here is the pic:

Radiator Cover Clip - XR812941

I ordered these few months ago from:

OEM Part Catalog

They offer free shipping regardless of the value of the order.

Thanks,
Rizwan

 

I purchased four of these fasteners from the local Jag dealer a couple of days ago.$3.50 a piece.

 

I paid 2.12 a piece with free shipping.

 

Thanks everyone! It helps to know what others used to purchase an item.

 

item# 99-8266 only cost $9.40 for package of ten this place carries clips for all cars

Car-Pak.com, Complete Automotive Supply and Equipment

 

Good find!! It's also very interesting that the item directly above 99-8266 is 99-8625 and it looks like the fastener that holds the windshield wiper cover to the strut tower brace. These are needed a lot to.

Part number 99-8041 is the door panel push pins. They even include the foam washer to help with rattles.
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Bloody dealers and oil change places leave them off in their hurry to get the next $. I'd look underneath as well, you'll probably find half the bolts holding the lower engine cover are missing and that's what makes the knocking noise at speed (don't ask me how I know....)

 

Worth knowing!