or maybe under the "brand" name of a big buyer sold later
water pumps, OEM numbers and models for all types
http://www.tbaparts.com/waterpump.asp
fan clutches
http://www.tbaparts.com/fanclutch.asp
i've not encountered those water pumps but those fan clutches suck, something like a 30% or worse failure rate, they lock up and sometimes explode the fan or just suck a ton of power and make your bmw sound like a truck
all america wants is cold beer warm cat and a place to take a poop with a door on it