1987/06/15 Caterpillar

All Three Main Bearing Part Numbers Stamped On Lower Portion Of Standard Size Bearing {1203}

Usage:

3208 Engines

The 3208 Engine uses three different upper main bearing shells. However, the lower portions of each main bearing shell are identical to each other. This means that the same lower portion is used with any of the three upper portions of a bearing to form the complete bearing shell. Formerly, the part number of the complete bearing shell was also stamped on the lower portion. This meant that even though the lower portions are identical, three different part numbers were found on the lower portions (one number on each portion).

To reduce time in stamping and stocking of the complete, standard size bearing shells (upper portion and lower portion), the three abbreviated part numbers of the complete bearing shells are now stamped on all the lower portions. See chart.

NOTE: This means that when replacement bearings are ordered only the number on the upper portion must be used. Replacement bearings will continue to include both the upper and lower portions.

Caterpillar Information System:

1987/06/15 New Relief Valve Guide Used In Oil Pump Groups {1304}

1987/06/15 New 1U5230 Hand Pump (General Purpose Hydraulic) Available {0646}

1987/06/15 New 1U5752 Retainer Tool Available To Service Hydrostatic Transmissions {0721}

1987/06/15 1U5495 Latch Group Available For Earlier Large Duo-Cone Seal Installers {0700,4052}

1987/06/15 New Face Films For Electronic Monitoring System (EMS) Panels {7490}

1987/06/15 Caterpillar Original Equipment Paint Products (U.S. And Canada) {7559}

1987/06/01 Exhaust Manifold Thermocouple Has Longer Insulated Leads {1050,1408}

1987/06/01 Features And Servicing Of The Various Caterpillar 3161 Governors {1264,1278}

1987/06/01 Fuel Injector Trim Bolt {1257}

1987/06/01 Remanufactured Programmable Electronic Engine Controls (PEEC) {1250}

1987/06/01 Use Correct Pistons And Rings For 3406B Truck Engines {1214,1215}

1987/06/01 Use Only Paint To Mark Connecting Rod Caps For Torque-Turn Method {1218,1219}

1987/06/15 Use Of Crankshaft Seal Adapter Eliminated {1150,1160,1161}

1987/06/29 Recommendations For Reusability Of Pistons With Crater Rim Cracks{1214}

1987/06/29 New Water Pump Group Used{1361}

1987/06/29 Check For Shipping Plugs On The Inside Of New Pistons{1214}

1987/07/06 Testing Connecting Rod Eye Bushings When Overhauling Engines{1218}

1987/07/06 New Cylinder Head And Spacer Plate Gaskets Prevent Oil Leakage Around Gear Pocket{1101}

1987/07/06 Silicone Rubber Water Seals Available{1100}

1987/07/06 High Alloy Cylinder Head Improved{1101}

1987/07/06 3400 Engine Major Component Performance Guide Available{0374}

1987/07/06 New Power Takeoff Groups Used; New System Gives Better Face And Bore Runout On Front Power Takeoff Adapters{3050,3107}

1987/07/06 New Sealant Used On Oil Pan Mounting Bolts{1201,1302}

1987/07/06 New 1U5524 Adapter Cable Available For Use With 6V9060 Spark Timing Adapter Group And 8T5300 Engine Timing Indicator Group{0779,0781}