1987 300SDL.....10P15C Nippondenso w/ 6groove serp. belt clch.
1988 190E .....10P15C " " "
Looks good to good to go according to A/C kits rebuilds. If your old compressor fried you want to disconnect major components, flush, replace receiver/dryer and consider the expansion valve.
The Golden Rule
1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)