CYLINDER BLOCK GP 1968060 - Caterpillar

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.
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 "PS8391" as the Part Number and "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and use "T" as the SIMS Description Code. If administered after failure, use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
COSA mail code O-133 is not in order since it was added at Revision SEBE5443-02 in December 1995.
This Revised Service Letter replaces the June 7, 1995 Service Letter (Revised July 1995). Changes have been made to the Mail Codes.
Termination Date
June 30, 1996Problem
The original water temperature regulator may not give satisfactory service life on certain 330, 330L, 330LN, 350, and 350L Excavators; and 966F Series II and 970 Loaders. A new 1118010 Regulator should be installed.
Affected Product
Model & Identification Number
330 (9WJ1-41, 6ZK1-73, 8FK1-937, 2ZM1-52, 5YM1-928)
330L (2EL1-520)
330LN (8CK1-310)
350 (8HK1-154, 2ZL1-169, 3ML1-558)
350L (9FL1-302)
966F Series II (9YJ1-2075)
970 (7SK1-544, 9JK1-462)
Parts Needed
1 - 7N0944 Gasket1 - 1118010 RegulatorAction Required
Remove the standard water temperature regulator and install a new 1118010 Regulator according to the Disassembly and Assembly Manual.
Service Claim Allowances
This is a 2-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.