New Valve Lifter Assembly Is Used in Certain G3400 Engines {1209}
- Engine:
- G3406 (S/N: 4FD1-UP; KAR1-UP)
- G3408 (S/N: 6NB1-UP; 6RJ1-UP)
- G3408C (S/N: BAZ1-UP)
- G3412 (S/N: 7DB1-UP; KAP1-UP; 6ZM1-UP)
Description of Change: The new valve lifter assembly has a crowned roller that help distribute load evenly across the roller. Even load distribution should help to extend service life.
Adaptable To:
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 | |
| Illustration 1 | g03423407 |
The new 422-3884 Valve Lifter As replaces the previous 105-5139 Valve Lifter As. The new valve lifter assembly is adaptable back to first production on the serial numbers listed above. Table 1 contains the effective serial numbers for this change.
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| Effective Serial Numbers |
|---|
| S/N:4FD04593-UP |
| S/N:6NB04621-UP |
| S/N:KAR00757-UP |
| S/N:6RJ02104-UP |
| S/N:BAZ02312-UP |
| S/N:7DB04012-UP |
| S/N:KAP01027-UP |
| S/N:6ZM02701-UP |
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