I had to replace mine quite recently...If you look through the front grill, you can just about read the numbers. These are as follows; Valeo A13V1300 14V 60510255316/05.
Identifying marks on the Valeo alternator fitted, all from the label that can just be read by using a torch and squinting:
Part number is: 8200 193 100
Marked as: 14V 110A (representing fourteen Volts and one hundred and ten Amps)
Additional code: A13/300 254 269 1C (don’t know what this signifies, but I understand it could be the number distinguishing between the £150 ish one and the £220 Trophy one. Yet more Trophy tax?
Additional code: 605 105 404 (unknown)
Additional code: 22/05 (week and year of manufacture)
Renault quote a price of £490 including VAT for a brand new alternator for the Trophy.
Should you go for an exchange part, a reconditioned original, the price is £220. I’ve been assured the exchange part is visually identical to a brand new one, and is an OEM part that is reconditioned. The exchange part has a Renault UK 12 month warranty.
Apologies, editing seems to be off. The following line should read as below, note addition of V in A13/300 section:
Additional code: A13V/300 254 269 1C (don’t know what this signifies, but I understand it could be the number distinguishing between the £150 ish one and the £220 Trophy one. Yet more Trophy tax?