I received the headlights I ordered today and they are Anzio and the correct part number but they don't fit they are huge I called the company and they insist they are correct Anzo 121157 ?????
I simply typed Anzo 121157 into a google search and got this hit (among many)
ANZO USA Part No. 121157 - Clear Lens Chrome Headlamp Assemblies
I next clicked on the Applications tab and got the attached list
Look at my attachment, it shows this partnumber to be compatible with 126's, 129's, and 107's...!
I did a screen shot and color coded the similar chassis so it's easier to understand.
By the look of the picture they have on that website, I bet Pete is right, it's an W126 S class light.
The problem your having with them claiming that it's a good P/N, is that the internet sales clerk is working off the same list I bet, and they actually have no real knowledge of Benz parts compatibilty. No headlight will fit 3 different benz chassis.
Call them back, return the headlights, and tell them you need a headlight that is ONLY compatible with a 129 chassis, or buy another brand that doesnt have this screw-up.