Warren Mohler Posted October 11, 2020 Share Posted October 11, 2020 The supply and return lines to the 4 l Renix fuel rail are the o-rings and spacer the same size for both.I have fuel injectors coming next week and want to replace those o-rings as well,I should remember this from the past but memory is fading I know the locking piece at the fuel pressure regulator is white while the one at the rear is black which raises suspicions. Thanks in advance Link to comment Share on other sites More sharing options...
fiatslug87 Posted October 12, 2020 Share Posted October 12, 2020 Yes, they are the same size. Link to comment Share on other sites More sharing options...
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