Put my fuel rails back on and the only o rings I did not replace were the ones on the regulator located at front of passenger rail. Where can I get rings for this unit? Ar they the same as the ones on the intake side of the injectors? Would a parts store have theM???
I hate to buy a new regulator when the rings are all I need.

 

They aren't listed as separate parts but you might try an autoparts store to see if they have a selection of o-rings to look through.

You could also try a hardware store, Lowes or Home Depot, but check on the fuel compatibility.

 

Not sure what size they are but Harbor Freight sell boxes of nitrile O rings.

 

Good deal. Ford sells this O-ring, part# W705818 S300. Takes two for the part.

 

installed and car seems fine after a spirited 20 min drive.