A New Rocker Arm Is Now Used on Certain C9.3 Commercial Engines {1123}
- Industrial Engine
- C9.3 (S/N: C931-145; CA91-139; CP91-126; CS91-1485; C9N1-1544; D9N1-5548)
Description Of Change: A new rocker arm is now used on certain commercial engines. The new rocker arm is now assembled using an improved process control to insure proper assembly.
Adaptable To: The following parts are adaptable to the engines within the listed serial numbers, and are effective with all engines after the listed serial numbers.
Note: Parts are now being assembled with press force monitoring to insure a proper press fit. New parts in the system can be identified by a white paint dot. Old parts have been scrapped from the system.
Note: These parts are compatible back to first production.
The new part numbers are listed in Table 1.
Show/hide table
| Item | Qty | New Part Number | Part Name |
|---|---|---|---|
| 1 | 6 | Rocker Arm As | |
| 2 | 6 | Rocker Arm As | |
| 3 | 6 | Rocker Arm As |
Caterpillar Information System:
C9 Generator Set Engines CID 0526 FMI 06 Turbo Wastegate Drive current high
C9 Generator Set Engines CID 0526 FMI 05 Turbo Wastegate Drive current low
C9 Generator Set Engines CID 0269 FMI 04 Sensor Supply too low
C9 Generator Set Engines CID 0269 FMI 03 Sensor Supply too high
C9 Generator Set Engines CID 0247 FMI 09 J1939 Data Link communications
C9 Generator Set Engines CID 0041 FMI 03 8 Volt DC Supply short to +batt
C9 Generator Set Engines CID 0006 FMI 06 Cylinder #6 Injector short
C9 Generator Set Engines CID 0006 FMI 05 Cylinder #6 Injector open circuit
C9 Generator Set Engines CID 0005 FMI 06 Cylinder #5 Injector short
C9 Generator Set Engines CID 0005 FMI 05 Cylinder #5 Injector open circuit
C9 Generator Set Engines CID 0004 FMI 06 Cylinder #4 Injector short
C9 Generator Set Engines CID 0004 FMI 05 Cylinder #4 Injector open circuit
3512C Engines for 785C Off-Highway Trucks with Dynamic Gas Blending Sensor Signal (Analog, Active) - Test - In Cylinder Pressure Sensor
G3500H 60Hz Generator Sets Engine Oil and Filter - Change
336D2 and 340D2 Excavators Machine System Fuel Tank
C9 Generator Set Engines CID 0544 FMI 02 Engine Cooling Fan Speed Sensor loss of signal
C9 Generator Set Engines CID 0544 FMI 08 Engine Cooling Fan Speed signal abnormal
C9 Generator Set Engines CID 1690 FMI 08 Throttle #2 Position Sensor abnormal frequency, pulse width, or period
G3508B, G3512B, G3512B, G3516B and G3520B Petroleum Engines Exhaust Shield - Remove and Install
PM310, PM312, PM313, PM620, PM622, PM820, PM822, and PM825 Cold Planer Monitoring System/Grade and Slope Display Settings
A New Fuel Pump Is Now Used For Certain C9.3 Engines {1251, 1290} A New Fuel Pump Is Now Used For Certain C9.3 Engines {1251, 1290}
G3516 Petroleum Engine Compressor Bypass - Check
The Steering Cylinders May Leak on Certain 773F, 775F, 777D, 777E, 777F, and 777G Off-Highway Trucks {4303} The Steering Cylinders May Leak on Certain 773F, 775F, 777D, 777E, 777F, and 777G Off-Highway Trucks {4303}
C7.1 Industrial Engine DEF Manifold Filters - Replace