A New Unit Injector Hydraulic Pump Group Is Available for Certain C9 Commercial Engines {1714}
- Engine:
- C9 (S/N: X3R1-UP)
- Generator Set:
- C9 (S/N: C9E1-UP)
- Industrial Engine:
- C9 (S/N: JSC1-UP; MBD1-UP; JLW1-UP)
- Marine Engine:
- C9 (S/N: X9X1-UP; Z9X1-UP; X9Y1-UP)
The new 384-0678 Unit Injector Hydraulic Pump Gp replaces the existing 319-0678 Unit Injector Hydraulic Pump Gp on the serial numbers listed above. The new unit injector hydraulic pump group has a new bearing design which improves operation. This improved operation eliminates hard starting and rough running engine conditions.
Refer to Special Instruction, REHS7902 for a list of parts needed to install the new pump group along with the procedure.
Caterpillar Information System:
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