1995-2002 Range Rover P38A
Word 'DUNLOP' alone is not the genuine Dunlop logo. It's with 'D' and 'DUNLOP' together makes the real logo.They are stamped made in England with the Dunlop logo. Probably would be easy enough to call Dunlop for an answer on the subject.
Other than getting a reman instead of a new alternator, nothing else you have mentions precludes the item from being OEM. Original equipment manufacturer, doesn’t mean that it will come in a LR bag. Many of the big companies you refer to package parts from the manufacturer, as Richard pointed out to you.Word 'DUNLOP' alone is not the genuine Dunlop logo. It's with 'D' and 'DUNLOP' together makes the real logo.
If they don't manufacture tyres in ENGLAND would they manufacture this air spring? Even if they did, why drop a part of the logo? not possible.
I raised this because we all buying parts claim to be OEM, GENUINE but are not so.