if the dimensions are the same, it should. normally, the OEM drive is the same as anyother drive if it is the same size. you simply remove the plastic housing off the old drive and put it on the new one. depending on the laptop, there may be an adapter which you will need as well.
on my 700m, i removed the plastic housing (this essentially is the housing that makes it fit in the media bay). I removed the adapter card since the pins of the drive are in a different location than the recepticle in the laptop. i took both and put them on the new drive.
if you are going from say a tray drive to another tray drive, you may have a problem fitting the front bezel (for example, I had a i5000e and i tried fitting a different drive, but the face bezel didn't match up). some drives come with a face bezel included, others do not...but since this is a slot drive you do not need to worry about it. now since it wasn't exactly made for the dell, the front plastic bezel isn't overlappling etc, thus there is a small gap on the left side as seen above.
i do not want to have to look up everybody's drive, so you can just google the model number of your drive and find the dimensions for it. if it is the same as the panasonic or pioneer listed in this thread, then you are good to go. if the drive needs an adapter plug, it will probably be included on your existing drive so you do not need to buy an adapter which the retailers sell as extra.
with that, it looks like from the drives offered for the 6000 that it is the same size drive, so it should work