Yeah, I'm not really bashing Autozone. Some of the stuff they sell is perfectly fine.
This is a case where I got burned by a low-grade generic part that they sell. They do not offer a Bosch pump at Autozone, despite carrying other Bosch items.
This same exact Taiwan pump is sold for a variety of other MB models, and I wanted to report my results so that no one else is tempted regardless of cost or availability.
The cost difference is about $60. In stock on a Sunday, priceless!
1986 300E 5-Speed 240k mi.