New Software for the Turbocharger Protection Strategy on C7.1 Engines {1052, 1901, 1920}
- Industrial Engine:
- C7.1 (S/N: 7701-1,253-270,272-282,284-294,299-313,315-331,333-382,384-393,395-415,417-876,887-942,948-952,954-990,992-1011,1013-1173,1176-1205,1207-1209,1211-1213,1217-1223,1225-1227,1231-1231,1235-1245,1247-1262,1264-1301,1303-1311,1314-1314,1321-1326,1328-1330,1332-1332,1336-1337,1338-1339)
- Generator Set:
- C7.1 (S/N: MRP1-127,129-278)
Description of Change: New engine software has been introduced to offer enhanced protection to the turbocharger immediately following engine start in very cold conditions.
The new software holds the engine at a safe speed until the engine systems have stabilized.
The time the engine is held at a safe speed will vary depending on many factors, including ambient temperature, and engine oil grade.
Refer to table 1 and table 2 in order to view the old and the new software part numbers.
Adaptable To:
Show/hide table
| Industrial Engines | |
| Old Part Numbers | New Part Numbers |
| 4161945 | 4451775 |
| 4164689 | 4413552 |
| 4177620 | 4319505 |
| 4164571 | 4320089 |
| 4320089 | 4419941 |
| 4164576 | 4450434 |
| 4164571 | 4450448 |
Show/hide table
| Generator Set | |
| Old Part Numbers | New Part Numbers |
| 3934670 | 4478672 |
| 3998631 | 4321892 |
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