- Off-Highway Truck:
- 789C (S/N: 2BW1-UP)
- 789D (S/N: SPD1-UP; SHH1-UP)
- 793 (S/N: 3SJ1-UP)
- 793B (S/N: 1HL1-UP)
- 793C (S/N: CBR1-UP; 4AR1-UP; ATY1-UP; 4GZ1-UP)
Description of Change: The new stub shaft is made exclusively from high grade ductile iron.
Adaptable To: The new 449-7383 Stub Shaft is a direct replacement for the 7N-7057 Stub Shaft. The existing 7N-7057 Stub Shaft can be constructed from both steel and cast iron.
The steel 7N-7057 Stub Shaft can be identified by the existence of machining centers on both shaft ends. Also, an etched identification is present on the small end of the shaft. Refer to Illustrations 1 through 3 for steel shaft identification examples.
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| Illustration 1 | g03479502 |
(1) Machining center on the small end of the steel 7N-7057 Stub Shaft | |
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| Illustration 2 | g03480336 |
(2) Machining center on the large end of the steel 7N-7057 Stub Shaft | |
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| Illustration 3 | g03480417 |
(3) Etched identification on the small end of the steel 7N-7057 Stub Shaft | |
This change is effective for the machine serial numbers listed in Table 1.
This change is effective for the high displacement reman engines built on or after 14February 2014 for these machines.
| Effective Serial Numbers |
| S/N:2BW02129-UP |
| S/N:SPD00624-UP |
| S/N:SHH00319-UP |
| S/N:3SJ00057-UP |
| S/N:1HL00525-UP |
| S/N:ATY01125-UP |
| S/N:4AR00425-UP |
| S/N:4GZ00265-UP |
| S/N:CBR00109-UP |