CYLINDER GP-THUMB 2754243 - Caterpillar

Engine:
C7 (S/N: JTF1-UP; RMF1-UP; TSK1-UP; FML1-UP; JKL1-UP; KAL1-UP; FMM1-UP; SAP1-UP; JRT1-UP; WAX1-UP; PRY1-UP)
C9 (S/N: SRB1-UP; CKP1-UP; LFR1-UP; X3R1-UP; P7Z1-UP)
Generator Set:
C9 (S/N: C9E1-UP; NBP1-UP)
Industrial Engine:
C9 (S/N: JSC1-UP; REH1-UP)
Marine Engine:
C7 (S/N: M7A1-UP; C7D1-UP)
C9 (S/N: CSN1-UP; X9X1-UP; X9Y1-UP)
Petroleum Engine:
C7 (S/N: K2A1-UP; C7P1-UP)
C9 (S/N: P9L1-UP; KLW1-UP; P9W1-UP; KLX1-UP)
Petroleum Power Train Package:
CX31-P600-C9I (S/N: PDZ1-UP)
TH31-C9I (S/N: PAZ1-UP)
Petroleum Transmission:
TH31-E61 (S/N: SKY1-UP)
Description of Change: The fuel injectors utilize increased hardening and wear coating to critical fuel injector parts in order to minimize damage from debris.Adaptable To: The improvement has been made to all the fuel injectors. The remanufactured fuel injector part numbers did not change.The fuel injectors are adaptable to the above engines back to first production.The coated internal fuel injector parts were phased in throughout 2012, and all improvements were effective January 2013.