- Engine:
- 3606 (S/N: 8RB1-UP)
- Marine Engine:
- C280-6 (S/N: LDL1-UP)
- 3608 (S/N: 6MC1-UP; 5PG1-UP)
Description of Change: A new aftercooler core is now used. The new aftercooler core is isolated from the block for increased durability and increased reliability.
Adaptable To: The new 299-5625 Aftercooler Core is adaptable to the former 175-2277 Aftercooler Core. The new aftercooler core is adaptable back to first production. Refer to Table 1 for a list of parts. Refer to Illustration 1.
| Former Parts | Quantity | New Parts | Quantity |
| 175-1362 Housing | 1 | 7E-3101 Housing | 1 |
| 180-2923 O-Ring Seal | 1 | 6V-5063 O-Ring Seal | 1 |
| 031-0220 Locking Bolt | 30 | 031-0219 Locking Bolt | 38 |
| 175-2277 Aftercooler Core | 1 | 299-5625 Aftercooler Core | 1 |
| 139-6857 Plate | 2 | 7H-4412 Spacer | 2 |
| 5M-2894 Washer | 4 | 7X-0791 Bolt | 2 |
| 6V-0717 Self-Locking Bolt | 4 | 9S-4183 O-Ring Plug | 1 |
| 0S-1591 Bolt | 4 | 7E-3103 Seal | 1 |
| 1W-6917 Adapter | 2 | ||
| 3V-3308 Washer | 4 | ||
| 123-6256 Adapter | 2 | ||
| 6V-1454 O-Ring Seal | 4 | ||
| 6V-3908 O-Ring Seal | 2 | ||
| 6V-5049 O-Ring Seal | 3 | ||
| 9S-4191 O-Ring Plug | 3 | ||
 | |
| Illustration 1 | g01399524 |
(1) 6V-3908 O-Ring Seal (2) 6V-1454 O-Ring Seal (3) 031-0219 Locking Bolt (4) 3V-3308 Washer (5) 6V-5049 O-Ring Seal (6) 9S-4191 O-Ring Plug (7) 123-6256 Adapter (8) 1W-6917 Adapter (9) 7H-4412 Spacer (10) 7E-3101 Housing (11) 7X-0791 Bolt (12) 7E-3103 Seal (13) 9S-4183 O-Ring Plug (14) 6V-5063 O-Ring Seal (15) 299-5625 Aftercooler Core | |