I need to get a new tail light assembly for my'91 740 wagon. Those are findable but the bulb holders aren't. Where can I find the brake light bulb holder? No junkyard or parts store seems to be able to help

 

the circular lamp holders that bayonet in from the back? there's 2 different ones, they are interchangable by all 7xx/9xx and even some newer cars. On the wagons, the top 3 on each side are PN 1372041 (single filament bulbs), and the bottom one is 1372043 (dual filament).

they are like $17 at the dealer, or somewhat cheaper (plus shipping) at tascaparts.com or whatever.