- Off-Highway Truck/Tractor:
- 797 (S/N: 5YW1-UP)
- Wheel Loader:
- 994F (S/N: 4421-UP)
- 797B (S/N: JSM1-UP)
Description of Change:
 | |
| Illustration 1 | g01401454 |
(1) 278-0534 Alternator Guard Assembly (2) 278-0535 Spacer | |
An improved alternator guard is used on the 3500 Engines for the above machines. The new guard provides a longer metal insert for the bolt holes of the guard. This reduces the stress at the joint between the insert and the fiberglass. The guard is now made of a stronger material. The new guard is white in color.
Adaptable To: The 278-0534 Alternator Guard Assembly is a direct replacement for the cancelled 171-8946 Alternator Guard Assembly. The new alternator guard is adaptable to the engines that are listed above.
| Part Numbers for the Alternator Guard | |
| Existing Guard | New Guard |
| 171-8946 | 278-0534 |
Note: When you install the new guard on 797B Engines, two 278-0535 Spacers are required. When you install the new guard on 994F Engines, one 278-0535 Spacer is required. Discard any spacers that were removed during disassembly.
| Serial Number Effectivity for the Machine Engines |
| S/N:8WM01425 |
| S/N:3TN00699 |