Yes, now that I look closely the old ones do appear to be steel. They were very dirty and darkened and I could not tell whether they were brass or not until you mentioned it and I scratched the surface.

I'm relieved to hear these are the correct injectors so tomorrow when I install them (along with all new seals, holders and air lines) I hope to have my little engine running again!

-Marty

PS - The prices of these has gone crazy over the past few months. In the fall, when I was looking I could get them for $25 each. Now, the cheapest I could find was $37 and most places charge $50 or more. I guess the weak dollar has hit Bosch and they have resorted to dramatic price increases.