2001/10/01 Caterpillar


New Piston Assemblies Are Used {1214}

Usage:

G3612 1YG
Engines:
G3612 (S/N: 1YG237-UP)
G3616 (S/N: 4CG237-UP)

Description of Change: New piston assemblies are now used in these engines. The new piston assemblies provide an improved fit between the piston and the cylinder liner. This improved fit is the result of modified characteristics of the profile of the piston.

Adaptable To: The table identifies the new piston assemblies and the former piston assemblies. The new piston assemblies are effective with the engines that are identified above. The new piston assemblies are direct replacements for the former piston assemblies in all earlier engines. The former piston assemblies are cancelled.

Table 1
Application     Part Number of the Piston and Rod Group     Part Number of the New Piston Assembly     Part Number of the Former Piston Assembly    
9:1 Compression Ratio     7C-0444     204-4436     156-1699    
10.5:1 Compression Ratio     104-4836     201-5388     156-5753    

Caterpillar Information System:

Operating Instructions for the 4P-4788 Electrical Converter Gp and the 4P-4789 Electrical Converter Gp {1421} Operating Instructions for the 4P-4788 Electrical Converter Gp and the 4P-4789 Electrical Converter Gp {1421}
Power Module Switchgear (Low Voltage and Medium Voltage) Burn Prevention
Power Module Switchgear (Low Voltage and Medium Voltage) Engine Stopping
Power Module Switchgear (Low Voltage and Medium Voltage) Engine Starting
Power Module Switchgear (Low Voltage and Medium Voltage) Before Starting Engine
3114, 3116, and 3126 Industrial and Generator Set Engines Fan Drive Bearing - Lubricate - If Equipped
3056E Industrial Engine Camshaft Bearings
Automatic Transfer Switches CTG, CTGD Series Power Failure Operation
PMG3516 Power Module Reference Material
Automatic Transfer Switches CTG, CTGD Series Control Connections of the Transfer Switch
3512B and 3516B High Displacement Locomotive Engines Specifications
G3500B Engines Fumes Disposal Filter Element - Replace
G3408C and G3412C Engines Ignition Transformer
SR4 Generator with VR3 or VR4 Voltage Regulator Glossary
Installation and Removal Of The Mechanically Attached Wear Plate System Installation and Removal Of The Mechanically Attached Wear Plate System
SR4 Generator with VR3 or VR4 Voltage Regulator General Information
3406E and C15 Marine Engines Auxiliary Water Pump - Disassemble - Rubber Impeller
C27 and C32 Engines for Caterpillar Built Machines CID 1589 FMI 03 Turbo Inlet Air Pressure Sensor open/shrt to +bat
C1.1, C1.5 and C2.2 Engines for Caterpillar Built Machines Engine Oil Pressure Switch - Remove and Install
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Glow Plugs - Remove and Install
3126B Marine Engines CID 0105 FMI 03 Inlet Manifold Temp Sensor open/short to +batt
Automatic Transfer Switches CTG, CTGD Series Exerciser
3126B Marine Engines CID 0105 FMI 04 Inlet Manifold Temp Sensor short to ground
SCT673 Truck Mounted PumperPOD Junction Box
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.