SL/R107: 75' 450sl injector inserts
Happy wrenching
Sven
I know the answer for K-jet you will not be able to seat the injector without them. These look somewhat similar, but don’t have the retaining clips and the o-ring groove on the end.
i’m only guessing that they’re made of the same material, but it is plastic and yours is gone very hard and brittle over the years, the new ones are soft and supple.






