A New Coupling Hub Has Been Released for 3524 Engines {3279}
- Engine:
- 3524B (S/N: NPM1-UP)
Description of Change: The new hubs are shot peened during the manufacturing process for increased strength.
Adaptable To: The new 456-7592 Hub is a direct replacement for the existing 171-2113 Hub. The new hub is adaptable back to first production on the serial numbers listed above.
Note: New hubs must be installed at every rebuild.This change is effective with engine serial numbers NPM00473-UP.
Caterpillar Information System:
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