PLATE-REACTION 3858853 - Caterpillar

Caterpillar: Confidential Yellow
PSP FOR CRACKS IN 4N919 OIL PANS - 3406 AND 3406B TRUCK ENGINES - PS0258 - MAILED US, AMERICAS, CANADA, AUSTRALIA, AND TRU CK TEPS
  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.
PRODUCT SUPPORT PROGRAM FOR CRACKS IN 4N919 OIL PANS 3406 AND 3406B TRUCK ENGINES, 1302, PS0258 U-87 A-47 AU-68 C-71 TT-14 This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0258" as Part Number and "7755" as Group Number. Termination Date
October 31, 1986
Problem
The 4N919 Oil Pan can crack during operation in some applications. These cracks may or may not result in an oil leak. An improved 4N919 Oil Pan is now used in production.
Affected Product
92U1-66350 7FB1-21232
Parts Needed
1 - 4N919 Oil Pan
Action Required
Action is required only if the oil pan is cracked. If there is an oil leak, a new 4N919 Oil Pan should be installed. If the oil pan is removed for any reason and cracks are found in the oil pan, a new 4N919 Oil Pan should be installed. WARRANTY ALLOWANCES (SEE ILLUSTRATION)
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.