do you have a U.S. spec engine? Kent

@@Mercedessource Yes 380. I ordered parts from FCP Euro... Basically on the tubes at some point they tapered the ends but did not update the end caps. So the caps are too big for the taper. The original design (I think) had no taper. The original tubes I took of my 380 had no taper. I used their part number to reorder - new parts, same number had taper (smaller ID)

Thanks for the heads up, but the tubes I sell do not have a significant taper, and you can use your original plugs as I did on my 380SL I just used a tad of silicone grease and they went right in.

I split the end on one of my evap. hose when I replaced these items a couple of years back on my 380. I used a little heat to soften it the 2nd time around. Good luck

It is included with my fuel injector kit mercedessource.com/store/1981-1985-380sl-380sec-380sel-fuel-injector-replacement-kit

@Mercedessource I understand now. Thanks, looking to do some work to a 380sl soon will be reaching out