If you like, you can skip directly to where you can buy this part.
We sell good, original BMW, used E30 3-Series 325e 1984-1987 radiator units. The price is $80 plus shipping. The original manufacturer, who made this part for BMW, is Behr.
Bavarian Motor Parts really seems to know the BMW parts business. Their units seem high-quality as far as I can tell, though they are not from the original manufacturer. For cars with manual transmissions, their radiator is priced at just under $230 and they reference the BMW part number as being 17 11 1 468 068. For cars with automatic transmissions, their radiator is priced at just over $250 and they reference the BMW part number as being 17 11 1 468 069.
Turner Motorsport, who also seems very savvy, offers a new OEM Behr brand radiator for just under $190. Their website states: “The manual transmission version is BMW part# 17-11-1-468-068 and the automatic transmission version is BMW part# 17-11-1-468-069.”
On eBay, one vendor offers the same new OEM Behr brand radiator for just under $240. Another offers it for just under $200.
Also on eBay, a large California BMW used parts business offers a used unit for $80.
These are all reasonable alternatives, I think, though for the new units I’d probably go with the original manufacturer, Behr, and then I’d probably shop by price.
I also visited a generic website that specializes in radiators. I typed in information to identify my car. The screen went dim and a chat window opened. For a while, nothing happened and then someone asked if I know the engine size of my 325e. I left.
Another option is to go remove the part from a help-yourself junkyard, but their prices tend to not be all that competitive for this particular type of part, especially when you factor in the core charge.
We don’t charge a core charge. Some vendors do. To redeem the core charge, you have to take or send your old part back to where you did the transaction, within a particular span of dates. This seems reasonable — yet often, this ends up being non-viable in practical reality. In such cases, the core charge ends up as simply one more cost.
It’s probably safe to say that our used, original BMW units are price-competitive.