FLANGE 3774968 - Caterpillar

Illustration 1 g03321444
For Motor Grader replacement (1) Previous 252-5188 Flywheel As (2) Previous 256-9651 Flywheel Gear (3) New 417-9596 Flywheel As (4) New 4N-2514 Gear If the flywheel gear is broken, on an above listed Motor Grader, replace the 252-5188 Flywheel As (1) with the 417-9596 Flywheel As (3).
Illustration 2 g03321463
For Excavator replacement (5) Previous 304-3686 Flywheel As (6) Previous 256-9651 Flywheel Gear (7) New 398-0370 Flywheel As (8) New 4N-2514 Gear If the flywheel gear is broken, on an above listed Excavator, replace the 304-3686 Flywheel As (5) with the 398-0370 Flywheel As (7) .The change is effective at the factory with the engine serial numbers that are listed in Table1.
Table 1
Effective Serial Numbers    
S/N:B9F01498-UP    
S/N:B9J01451-UP    
S/N:B9H00867-UP    
S/N:EEH01258-UP    
S/N:PBT00588-UP    
S/N:RAJ00445-UP    
S/N:NNF00434-UP    
S/N:KCN00276-UP