ENGINE AR 5407351 - Caterpillar

Generator Set:
3456 GEN SET (S/N: C1G1-UP; C4G1-UP; 9BZ1-UP)
C18 GEN SET (S/N: G4C1-UP; STM1-UP)
Industrial Engine:
C13 INDUSTRIAL (S/N: LGK1-UP)
C15 IND (S/N: JRE1-UP)
C15 INDUSTRIAL (S/N: JAS1-UP)
C18 INDUSTRIAL (S/N: WJH1-UP)
Marine Engine:
3406E MARINE (S/N: 9WR1-UP)
C18 MARINE (S/N: CKH1-UP)
The O-ring on the tip of the fuel injector does not cause the fuel injector to fail. The O-ring on the tip of the fuel injector is only an aid during the break-in period of the engine. The O-ring is only needed until a "carbon dam" is built up during break-in. It is normal for this O-ring to be burnt, cut, and damaged after the O-ring has been run in the engine.