SEAL-O-RING 1039872 - Caterpillar

Table 1
Effective Serial Numbers    
S/N:C7S 05529-UP
General Motors Applications    
S/N:C7S07331-UP
Ford, Blue Bird Bus, and RV Applications    
S/N:C9S 00897-UP
All Applications    The change is effective with the engine serial numbers that are listed in Table1.Confirm that the regulator on the engine has not been updated previously. Do not replace the present regulator with the new 314-9611 Regulator unless the Diagnostic Trouble Code 651-7 through 656-7 (Engine Injector Cylinder #01 through #06: Not Responding Properly) is present on the ECM.Submit only one warranty claim for the replacement of the regulator and lines. Use the injector as the part that is causing the diagnostic.Refer to the pertinent rework instructions below in order to repair the engine.Rework Instructions for C7 General Motors Applications
Illustration 1 g01502065
Replace regulator (2) with 314-9611 Regulator .
Replace fuel line (3) with 314-9579 Tube As .
Replace connector (1) with 2P-1314 Connector .Rework Instructions for C7 Ford, Blue Bird Bus, and RV Applications
Illustration 2 g01502064
Replace regulator (2) with 314-9611 Regulator .
Replace fuel line (4) with 322-6570 Fuel Line .
Replace connector (1) with 2P-1314 Connector .Rework Instructions for C9 All Configurations
Illustration 3 g01502067
Replace regulator (2) with 314-9611 Regulator .
Replace fuel line (6) with 314-6856 Tube As .
Replace fuel line (5) with 314-6857 Tube As .
Replace connector (1) with 2P-1314 Connector .