SOCKET-41MM 9U6542 - Caterpillar

Caterpillar: Confidential Yellow
PSP FOR INSTALLING NEW TURBOCHARGERS ON CERTAIN 789 TRUCKS AND 3516 ENGINES (SPARE) - PS4472 - MAILED US AND CANADA, COFA, LIM ITED CACO, LIMITED COSA, LIMITED CFEL
  The information supplied in this service letter may not be valid after the termination date of this program.   Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
U-192 A-132.2 AU-122 E-115.1 O-148.2 1052 PS4472 This Program can be administered either before or after a failure. In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS4472" as Part Number, "7755" as Group Number, and "96" as Description Code. Termination Date
September 30, 1991
Problem
New turbochargers can be installed on certain 789 Trucks and 3516 Engines (Spare) to improve performance/response, lower smoke levels, and reduce exhaust gas temperatures. These turbochargers also include the improvements to the compressor wheel, turbine wheel, and bearing housing that were implemented in the May 27, 1989 Service Letter - PS4278.
Affected Product
Model Identification Number 789 9ZC1-454, 457, 458, 460-462 3516 54Z170, 179, 190, 196, 206, 217, 233, 239, 240, 264, 284, 291, 293-296, 311, 334, 349, 350, 364, 381, 384, 385, 406, 407, 431, 432, 441, 458-461, 494, 495, 512
Parts Needed
***** If Remanfuactured Products Are Available ***** 1 - 7M7273 Gasket 1 - 7N7559 Gasket 4 - 7N7628 Gasket 1 - 7N8875 Gasket 1 - 0R6158 Turbocharger 2 - 5P5700 Seal Quantities listed are per turbocharger. There are 4 turbochargers per Affected Product. ***** Only If Remanfuactured Products Are Not Available ***** 9ZC1-335