Fuel System - Fuel Tank (MRA) O-Ring Change Info.
INFORMATIONBulletin No.: 09-06-04-033
Date: August 17, 2009
Subject: Information on Fuel Tank Secondary Modular Reservoir Assembly (MRA) O-Ring Change
Models:
2008-2009 Pontiac G8
When servicing the fuel tank secondary modular reservoir assembly (MRA) O-ring, please note that there are two designs and two service o-rings. The two design assemblies can be identified by the part number on the lock ring.
Identify the Lock Ring
Remove the fuel tank and look at the lock ring. The part number is stamped on the ring (1).
The first design lock ring, P/N 15776431, should only be serviced with P/N 92231228 (which replaces P/N 15776433).
The first service part (P/N 15776433) is colored blue and the new design service part is colored green.
Both of the current service o-rings are green and may appear to be similar but they have different dimensions and cannot be interchanged.
Parts Information
Disclaimer