NAS Automotive Products

FUEL SYSTEM O-RING KIT for FORD PSD 1998-2003 7.3L.  TRUCKS ONLY NOT VANS.

This Kit is o-rings only for the above vehicle, also see:
   The Fuel line Grommet Kit for this vehicle
   The Combo Kit (rings & grommets) for this vehicle

O-RING / FUEL LINE GROMMET FAILURE SYMPTOMS:
Fuel Puddles in Engine Valley
Fuel Dripping Under Bell Housing
Un-burned Fuel Odors in Cab

CAUSES:
The 1998 thru 2003 Ford 7.3L Powerstrokes did not have fuel system o-rings that were
compatible with Ultra Low Sulfur Diesel or even low concentrations of Bio-Diesel.  The
actual life of the o-rings varies greatly and many may not have started to leak yet.
These new kits have Brown colored o-rings made of Viton which is resistant to ULSD
and Bio Diesel.  We purchase all of our Viton o-rings in a Brown color so that we can
quickly know that we are shipping the correct ones.  This is for your added protection.