It's W126...

Yeah I guess it is pretty straightforward...

But, I still can't find something: one of the guys at the auto-parts store said it also needed a strainer that they didn't sell or have in their system. He showed me an example of a strainer from a GM vehicle, it was a white cylindrical thing with a fine white mesh in it.

Thing is, I don't see anything on my 300SE except the pump and filter...

Does the 300SE require a strainer?

Also, I'm wary of expensive aftermarket parts, because it seems to me that expensive parts would warrant just going with OEM or premium brands. What is you all's take on it? Would an Airtex pump be sufficient over a Bosch?

Thanks.