There is pharmacy benefit managers within the pharmaceutical industry. To summarize, they act as middle men and squeeze a little bit from everybody, as a result prices for medication go up. Does OEM car parts share this similarity, resulting in car parts going higher in price?

If you would like me to be more descriptive:

So outside of the company, in-between when a company manufactures the car part ---> reaches retail/online stores, there is no benefit managers or something like that which raises the price?