YOKE AS 1791970 - Caterpillar

Caterpillar: Confidential Yellow
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.
Termination Date
April 30, 1996Problem
The 7E6167 Cylinder Head Gasket and 7W7546 Spacer Deck Gasket need to be replaced in some gasket kits with a new 1118015 Cylinder Head Gasket and 1157550 Spacer Deck Gasket. The new cylinder head gasket is now made of compacted graphite material. The overlap of fire ring wrap is also increased.
Action Required
Replace the existing 7E6167 Cylinder Head Gasket and 7W7546 Spacer Deck Gasket with the new 1118015 Cylinder Head Gasket and 1157550 Spacer Deck Gasket in the gasket kits with the following part numbers: 3E7471, 3E8898, 6V4784, 6V8032, 7X2859, 8T1622, 8T6955, 9X2224, 9X2518, 1043016. Do not replace the gasket kits with date codes 07/95 and later.
TEPS/MEPS dealers are reimbursed for recalled Parts Stock by returning the affected Parts Stock to their administering Caterpillar dealer for replacement.
Service Claim Allowances
Submit one claim for all 7E6167 and 7W7546 Gaskets removed from Parts Stock.
US and Canadian Dealers Only - When submitting a Parts Stock claim use 99Z00007 in the Product Identification Number Field.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.