GUARD AS-COMPRESSOR PULLEY 1262277 - Caterpillar

Marine Engine3508C (S/N: PXA1-UP; TTA1-UP; PXB1-UP; TTB1-UP)3512C (S/N: PXC1-UP; TTC1-UP; PXE1-UP; TTE1-UP; PXF1-UP; TTF1-UP; PXG1-UP; TTG1-UP; E3W1-UP; PXW1-UP; E3X1-UP; PXX1-UP)3516C (S/N: PXD1-UP; TTD1-UP; PXH1-UP; TTH1-UP; PXJ1-UP; TTJ1-UP; E3Z1-UP)Description Of Change: The new software has a redundant data link heartbeat transmit message added to the CAT® Data Link.On reverse rotation engines, software driven resets would occur due to a vulnerability in the data link architecture for the propulsion flashfiles.Adaptable To: The new software replaces the former software.The former software has been canceled.The new software and former software are listed in Table 1.
Table 1
Primary ECM Secondary ECM
New Part Former Part New Part Former Part
487-0423 432-6863 487-0424 432-6864
487-0417 432-6853 487-0418 432-6854
487-0419 432-6857 487-0420 432-6858
487-0413 432-6849 487-0414 432-6850
465-6861 432-6865 465-6862 432-6866
487-0433 432-6945 487-0434 432-6946
487-0441 461-7887 487-0442 461-7888
487-0431 432-6943 487-0432 432-6944
487-0429 432-6941 487-0430 432-6942
493-1967 432-6847 493-1968 432-6848
487-0415 432-6851 487-0416 432-6852
465-6869 432-6873 465-6870 432-6874
487-0421 432-6859 487-0422 432-6860
465-6871 432-6875 465-6872 432-6876
487-0425 432-6887 487-0426 432-6888
487-0439 470-2970 487-0440 470-2971
487-0427 432-6895 487-0428 432-6896 This change is effective for the serial numbers listed in Table 2.
Table 2
Effective Serial Numbers
S/N:PXA00207-UP
S/N:PXB00203-UP
S/N:TTA00278-UP
S/N:TTB00604-UP
S/N:E3W00413-UP
S/N:E3X00281-UP
S/N:PXC00215-UP
S/N:PXW00221-UP
S/N:PXX00201-UP
S/N:TTC00735-UP
S/N:TTE00213-UP
S/N:TTF00665-UP
S/N:TTG00409-UP
S/N:PXE00202-UP
S/N:PXF00231-UP
S/N:PXG00204-UP
S/N:E3Z00207-UP
S/N:PXD00202-UP
S/N:TTD00430-UP
S/N:TTH01095-UP
S/N:TTJ00656-UP
S/N:PXH00322-UP
S/N:PXJ00318-UP