Skip to navigation.

6.5L Diesel Fuel Filter Manager O-Ring Kit


The GM Fuel filter housing is nestled in a difficult location and exposed to very high temperature.  The o-rings for the FFM should be changed when you have it out and may be the root cause of your very small diesel leak.

Here you go, unavailable from the dealer.  Biodiesel safe and ready to go.  Also available on our Feed the Beast kits.


Thank you!