- Industrial Engine
- C9.3 (S/N: C9N1-1544; D9N1-5570)
Description Of Change: The NOx Reduction System (NRS) cooler group has a more robust design.
Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.
The new 449-3090 Exhaust Cooler Gp (NRS) replaces the former 345-9941 Exhaust Cooler Gp (NRS).
Reference: Disassembly and Assembly, KENR8164, Exhaust Cooler (NRS) - Remove and Install for more information.
Reference: Special Instruction, M0069778, System Check after an NOx Reduction System (NRS) Cooler Failure for C9.3 through C18 Tier 4 Engines for more information.
Reference: Special Instruction, M0070968, Coolant Drain and Vacuum Fill Procedure For Certain C9.3 Through C18 Tier 4 Engines for more information.The required parts are listed in Table 1.
| Qty | Part Number | Part Description |
|---|---|---|
| 1 | O-Ring Seal | |
| 2 | Clamp | |
| 1 | O-Ring Seal | |
| 3 | O-Ring Seal | |
| 1 | Band Clamp | |
| 1 | Bellows As | |
| 1 | Exhaust Cooler Gp (NRS) |
| |
| Illustration 1 | g06214991 |