1995/08/01 Caterpillar

Improved Aftercooler Tube Assemblies Now Stainless Steel To Increase Corrosion Resistance{1063}

Usage:

3612 (9RC) Industrial, 3616 (1PD) Industrial, G3616 (4CG) Gas, 3616 (1FN) Marine Engines

Description of Change: Two new aftercooler tube assemblies have been introduced to directly replace the former aftercooler tube assemblies used on the above 3612 and 3616 Engines. The new tubes are composed of stainless steel to increase corrosion resistance.

Adaptable To: The new 123-6331 Tube Assembly is a direct replacement for the former 4W-7567 Tube Assembly. The new tube assembly is effective on the 3612 (9RC187-UP) Industrial Engine.

The new 123-6328 Tube Assembly is a direct replacement for the former 7W-2259 Tube Assembly. The new tube assembly is effective on the 3616 (1PD232-UP) Industrial, G3616 (4CG47-UP) Gas, and 3616 (1FN141-UP) Marine Engines.

Location of the new tube assembly (1) in the water aftercooler group.

Caterpillar Information System:

1995/08/01 New Adapters Used In Aftercooler Groups{1063}

1995/08/01 Turbocharger Cartridge Groups Available For Parts Service{1053,1052}

1995/08/01 New Turbocharger Bearing Clearance Specifications{1052,1053}

1995/08/01 New Air Cleaner And Silencer Has Increased Noise Attenuation{1051,1054}

1995/08/01 New Rain Shields And Automatic Draining Precleaner Cup Assembly Available{1051}

1995/08/01 New Piston Crown Assembly Used In Piston And Rod Group{1214}

1995/08/01 Check For Correct Location Of Trolling Mode Input Wire{1408}

1995/08/01 New Oil Seal And Seal Collar Used In Auxiliary Sea Water Pump Groups{1371}

1995/08/01 Wear Sleeve Removal Tooling May "Mark" The Crankshaft{1202,1161}

1995/08/01 Valve Lash Adjustment Intervals{1105}

1995/08/01 Improved Cylinder Head Group Components And Valve Mechanism Group Components Provide Increased Service Life{1100,1102,1103,1104,1105}

1995/08/01 New "High Efficiency" Fuel Filters Help Prevent Worn Injectors{1261}

1995/08/01 Change In Crankshaft Seal Wear Sleeve Installation Procedure{1160,1161}

1995/08/01 New Air Shut-Off Groups Used{1078}

1995/08/01 New Crankshaft Main Bearing Installation Procedure{1203}

1995/08/01 Changes To Heavy Fuel Flow Rate Requirements{1250}

1995/08/01 Torque Value Increased On Connector In Order To Prevent Loosening{1252}

1995/08/01 New Rubber Lined Clamp Assembly Used In Fuel Injection Lines Groups{1252}

1995/08/01 Liquid Level Gauge Available As Service Repair{1350,1354}

1995/08/01 New Water Temperature Regulator Used{1355}

1995/08/01 New High Temperature Resistant Seal Group And Seal Used In Water Pump Groups{1361}

1995/08/01 New Tube Assembly Used In Water Lines Groups{1380}

1995/08/01 Gasket To Be Replaced After Spark Plug Inspection{1555}

1995/08/01 New Jacket Water Inlet Regulator Requires Jacket Water Outlet Alarm Temperature Setting Change{7417,1355}