I have the aftermarket Chinese-made ones in both red and clear lenses, these use the smaller T20 bulbs found in the rear signals. I didn't have any OEM 4th-gen sockets that worked so I used aftermarket Flosser brand off eBay, had to modify the tabs (took a minute or so) with small wire cutters.
Going by partsouq's site the socket and harness are a single assembly
https://ebay.us/DaQLMt
the part # for the bulb is a T20 type AKA 7440. The sockets I bought are the dual filament T20, AKA 7443, so I have a parking and brake feature in each lamp assembly