03 Trailblazer fuel pump replacement

Replacing the fuel pump in a 2003 Trailblazer.
I used the Bosch fuel pump #67415. The number on the pump itself was 15077623, which matched the number on the OEM pump.
The correct fuel pump o-ring for my 03 is the AC Delco #G30. When I have more details on what the green o-ring is for, I'll update this with a video response.
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