The SG bullets work fine in the custom aux passing lamp/turn signal kit. Whether they are the same p/n or not, I don't know.
HD sells the SG bullet turn signal kit/mouting bracket for non-SG applications in kit p/n 69577-06, and the turn signals in that kit are p/n 69371-06 according to the on-line HD catalog installation instructions and service parts list.
If someone has the SG parts book, they can compare the part numbers for the OEM turn signals to see if they are 69371-06 or not.
In my case, I bought the turn signal kit when I installed the aux custom kit, then re-used the turn signals with the SG brackets, sold the aux custom bracket with the passing lamps, and installed Motolights.
I've read on other forums of non-CVO SG owners re-using their OEM turn signals with the aux passing lamp kit. Lousy for HD to list the purchase of the turn signal kit as required when the OEM SG turn signals work fine; and, even worse if the parts are identical.
Carl