A New Aftercooler Cover is Now Used {1063, 1063}
- Industrial Engines:
- 3412 (S/N: 38S1-UP)
- Generator Sets:
- 3412 (S/N: 81Z1-UP)
- Marine Engines:
- 3412 (S/N: 60M1-UP)
- 3412E (S/N: 4CR1-UP; BDT1-UP)
Description of Change: A new aftercooler housing is now being used on the 3412 and 3412E engines that are listed above. The new aftercooler cover has improved supporting behind each of the flanges. This change increases the durability and the resistance to cracking of the aftercooler cover.
Adaptable To:
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| Illustration 1 | g01125693 |
The new 255-4492 Cover (1) is a direct replacement for the 7N-9668 Cover which has been cancelled. Refer to the table below for the serial number breaks.
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| Adaptable to the Following Engines | Effective with the Following Engines |
| S/N:38S00001-23295 | S/N:38S23296-UP |
| S/N:60M00001-11077 | S/N:60M11078-UP |
| S/N:81Z00001-27732 | S/N:81Z27733-UP |
| S/N:4CR00001-03977 | S/N:4CR03978-UP |
| S/N:BDT00001-03513 | S/N:BDT03514-UP |
Caterpillar Information System:
C11 and C13 Engines Fan Drive
345C Excavator Machine System Specifications Relief Valve (Main)
2004/12/01 A Different Starting Motor is Used {1451}
345 MHPUC Mobile Hydraulic Power Unit Machine System Specifications Relief Valve (Main) - Heavy Lift
C32 Marine Engines Sensors and Electrical Connectors
3508C, 3512C and 3516C Marine Engines Crankshaft Main Bearings - Remove
3508C, 3512C and 3516C Marine Engines Crankshaft Main Bearings - Install
854G Wheel Dozer High Intensity Discharge Lamp (HID) - Replace - If Equipped
3500 Engines Connecting Rod Bearings - Remove and Install
345C, 365C and 385C Excavators Air Conditioning and Heating Air Conditioner Lines
3508C, 3512C and 3516C Marine Engines Pistons and Connecting Rods - Install
3508C, 3512C and 3516C Marine Engines Pistons and Connecting Rods - Remove
2004/12/01 An Improved Engine Mount is Now Used {1152}
345C Excavator Machine System Specifications Hydraulic Tank and Filter
3500B Marine Propulsion Engines Refill Capacities and Recommendations
3508C, 3512C and 3516C Marine Engines Accessory Drive (Front) - Remove
3508C, 3512C and 3516C Marine Engines Accessory Drive (Front) - Install
2006/02/01 Magnetic Cover for the Turbocharger Oil Supply Line {1052, 1307}
2006/02/20 Magnetic Cover for the Turbocharger Oil Supply Line {1052, 1307}
2006/02/20 Magnetic Cover for the Turbocharger Oil Supply Line {1052, 1307}
C9 Marine Generator Set Plate Locations and Film Locations
345C MHPU Mobile Hydraulic Power Unit Hydraulic System Hydraulic Tank and Filter
345C MHPU Mobile Hydraulic Power Unit Hydraulic System Oil Filter (Return) - Case Drain Filter
345C MHPU Mobile Hydraulic Power Unit Hydraulic System Hydraulic Oil Cooler