1998/12/01 Caterpillar

New Turbocharger Supply Tube Assemblies Used{1307}

Usage:

3406C (8PN),
3406E (2WS, 1MM) Truck Engines

Reference: Truck Engine News, February 1997, Page 4, "New Oil Supply And Drain Lines In Turbocharger Oil Lines Groups Used With 'Mid-Mount', 'New Mid-Mount', And 'Low Mount' Arrangements."

Description of Change: New turbocharger supply tube assemblies are now used on the above engines. The new tube assemblies no longer use the 45 and 90 degree elbows in order to mount to the oil filter base elbow. The new assemblies now use a straight connector.

Adaptable To: The following chart shows the part number of the new and the former turbocharger tube assemblies.

The new tube assemblies are effective with 3406C (8PN12910) and 3406E (2WS476, 1MM127) Truck Engines. The new tube assemblies use the straight 137-7343 Connector, in place of the 45 and 90 degree elbows. Be sure to use new 136-7226 and 136-7227 O-Rings when installing the new tube assemblies.

Caterpillar Information System:

1998/12/01 Eliminate Possibility Of Engine Oil Leaks From Oil Pan Bolt{1302}

1998/12/01 New Unit Injector Sleeve And O-Ring Seals{1125}

1998/12/01 New Adjustment Procedure For Jake Brake (Models 340/340A/340B) Slave Piston Lash{1119}

1998/12/01 New Exhaust Port Sleeve Assembly{1059,1101}

1998/12/01 Service Tool Compatibility With 1999 Model Year C-10, C-12, And 3406E Truck Engines{0781,1902}

1998/12/01 New Remanufactured Water Pump Groups Available{1361}

1998/12/01 New Injector Sleeve Used{1713}

1998/11/01 Use 153-9032 Portable Air Conditioning Flushing Unit To Clean Air Conditioning Lines {0714}

1998/11/01 Use Jet Guard And Long John Safety Air Guns For Cleaning Engines And Equipment {0646}

1998/11/01 New Oil Filter Base Elbow And O-Ring Seal Improves Sealing {1306}

1998/11/01 Elimination Of One Hold-Down Stud For Pac Brake {1119}

1998/11/01 Elimination Of One Hold-Down Stud For Jake Brake {1119}

1998/12/01 New Rear Oil Cooler Bonnet{1378}

1998/12/01 New 146-4080 Digital Multimeter Available For Troubleshooting Electronic Circuits{0115}

1998/12/01 Use 149-5138 Mechanical Push/Puller For Extra Force In General Purpose Applications{0700}

1998/12/01 Use 153-9630 PWM-Analog Test Group-Sensor Adapter Kit For DataView{1000,3000,4000,5000,6000}

1998/12/01 Use 131-5050 DataView Group And 131-5051 DataView Portable TechStation Group For Accurate Diagnostics{1000,3000,4000,5000,6000,0788}

1998/12/01 Use 150-3992 And 150-3993 Timing Pins For Fuel Injection Pumps Installation{1251,1251,1000}

1998/12/01 Use 139-2610 Or 139-2611 (CE Certified) Refrigerant Identification Instrument To Determine Refrigerant Content{1809}

1998/12/01 Use 9U-5968 Hydrostatic Filter Group To Filter Contaminated Oil{5050,3200,3218}

1998/12/01 Use 145-9342 Filter Crusher To Reduce Waste And Collect Oil{5720}

1999/01/01 Electronic Controller Analyzer Programmer (ECAP) Truck SPM Version 2.3 Update{1920}

1999/01/01 Electronic Technician (ET) Version 2.3 Update{1920}

1999/01/01 Camshaft And Follower Lubricant Recommended During Rebuild And Assembly Of Engines{1210,1211}