155005-0100 ZEXEL 9 421 611 598 BOSCH COILED SPRING 9421611598 1550050100 9813150880

December 9, 2005
U-389
A-289
D-306
O-325
Partsstock action only PRODUCT IMPROVEMENT PROGRAM FOR REMOVINGCERTAIN FUEL INJECTORS FROM DEALERS PARTS STOCK
7750 PI70111
The information supplied in this serviceletter may not be valid after the termination date of this program. Donot perform the work outlined in this Service Letter after the terminationdate without first contacting your Caterpillar product analyst.TERMINATION DATE
March 31, 2006PROBLEM
A machining error can cause the valve body tocrack through the high-pressure line. This crack can result in fuel inthe engine oil.ACTION REQUIRED
All 10R-0957 unit injectors within serial numberrange 848368-850132 should be removed from parts stock. All 10R-0960, 10R-0961,and 10R-0963 within serial number range 188029-188914 should be removedfrom parts stock.SERVICE CLAIM ALLOWANCES
Submit one claim for all 10R0957, 10R0960, 10R0961,and 10R0963 Injectors removed from parts stock.PARTS DISPOSITION
All dealers are to make sure the outsideof the shipping container is marked PI70111.***** U.S. and Canadian Dealers *****Return all 10R0957, 10R0960, 10R0961, and 10R0963Injectors that are removed from parts stock and a copy of the claim to:Caterpillar Inc.
Attn: Supplier Recovery PI70111
Service Claims Room
8201 N. University
Peoria, IL 61615***** All Other Dealers *****Handle the parts in accordance with your WarrantyBulletin on warranty parts handling.