New Spark Plugs Are Used on Certain G3600 Engines {1555}
- Engine:
- G3606 (S/N: 3XF1-UP; 4ZS1-UP)
- G3608 (S/N: 4WF1-UP; BEN1-UP)
- G3612 (S/N: BKE1-UP; 1YG1-UP)
- G3616 (S/N: BLB1-UP; 4CG1-UP)
Description of Change: The new spark plugs use an iridium alloy on the tip of the center electrode. The ground electrode is larger and uses a platinum alloy on the tip. These changes improve the reliability and service life of the new spark plugs.
Adaptable To: The new 479-7702 Spark Plugs replace the existing spark plugs and are adaptable back to first production on the serial numbers listed above.
This change is effective on the serial numbers listed in Table 1.
Show/hide table
| Effective Serial Numbers |
| S/N:4ZS02194-UP |
| S/N:BEN01192-UP |
| S/N:BKE00795-UP |
| BLB0997, S/N:BLB00999-UP |
Caterpillar Information System:
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