I don't know much about the 6 cyl diesels, but seems like I have heard about an O ring associated with the main fuel filter. Not sure where it is. Maybe you have to transfer it from the old filter to the new one. Sorry I can't be more help.

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



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