SPRING 2N9421 - Caterpillar

Engine:
G3520C (S/N: GZJ1-UP; HAT1-UP)
Description of Change: The new exhaust shield assemblies are now available to help contain any debris that may be caused by a turbocharger failure. Adaptable To: ReferenceRefer to Special Instruction, REHS9669, "Installation of Exhaust Shield Assemblies On Certain G3520C Engines".Engines with turbochargers that have serial numbers above the ones listed in Table 1 do not require the shield assemblies to be installed as a change has been made to contain turbocharger parts in the event of a turbocharger failure.
Table 1
Part Number     Turbocharger S/N:    
20R-3114     HT543080    
20R-3369     HT544173    
20R-3370     HT544175    
254-0784     HT546357    
254-0786     HT541476    
254-0789     HT540753    This change is effective for the serial numbers listed in Table 2.
Table 2
Effective Serial Numbers    
S/N:GZJ161-169,174-181,183-186,188,196-198,201,204-210,215,219-233,236,243-246,266,268,270-271,273-275,277-283,288-293,310,313    
S/N:GZJ234-235,257,259-260,262,265,267,284,294-307,311,314-319,321-363,369-381,385-409,411-421,424-428    
S/N:HAT102,200-205,207,209-211    
S/N:GZJ429-473,476,478-491,493-495,498-553,600-620,624-665