I work at NAPA and yes we can get the small seals for the quick connect
injector seals top and bottem
line code CRB #2-12093 and MPF #3-12085
and the small o-ring on the inlet and outlet is
Line code BK # 605-1341 it is a kit of misc o-rings and even has a few of the injector o-rings too ( this dose NOT have the plastic spacer ! )
also the BK 730-4912 may also have the o-rings but I do not have it in stock to make sure