Replacing distributor rotor -- do I need an adapter?
 

At 100,000 miles, appears to be time to replace both distributor caps and rotors, according to my independant tech. Says "green stuff" is growing in there . . .

Looked at Parts Shop, has the best prices around, but I'm confused since there is listed a "rotor adaptor" listed in addition to the rotors themselves.

Does anyone know if in fact I need the adaptor?

thanks,
steve

Only if yours is broken. We have had to replace quite a few from breakage.

The early M119.960 engines in the 1990 & 91 500SL all need this adaptor, also all early 1992 engines may require it as well.

Thank you!
Steve