1998 Honda Accord Can only find 3 out of 4 O-rings for fuel

Engine Mechanical problem
1998 Honda Accord 4 cyl

I pulled my fuel injectors and want to replace the three O-rings and the bushing. Problem is, I can not find the O-ring at the end of the injector which goes into the intake. In the picture, it's the O-ring on the left over the yellow plastic tip. Does this O-ring come only with the injector?

Thanks
[img:c7f6362ee9]http://www.2carpros.com/forum/automotive_pictures/521741_FuelInjector_1.jpg[/img:c7f6362ee9]