013121-0040 ZEXEL 9 442 610 578 BOSCH UNION NUT 9442610578 0131210040 1835796150

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 only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS0902" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
This Revised Service Letter replaces the November 29, 1995 (Revised December 1995) Service Letter. Changes have been made to the Parts Needed and Service Claim Allowances.
This Revised Service Letter replaces the November 29, 1995 (Revised January 1996) Service Letter. Changes have been made to the Action Required.
Termination Date
November 30, 1996Problem
Some 3406C Engines may have white smoke at start up. The problem is related to 8PN Engines that were built using the 1007567 and 1214353 Nozzles.
Affected Product
Model & Identification Number
3406C (8PN1-5802) (425 hp) 8PN1-5985 ) (350 hp)
Parts Needed
6 - 0R8289 Nozzle Assembly (for 350 hp)6 - 0R8290 Nozzle Assembly (for 425 hp)Action Required
1. Remove the 1214353 Nozzles and install the 0R8289 Nozzles on engines with 350 hp.2. Remove the 1007567 Nozzles and install the 0R8290 Nozzles on engines with 425 hp.Service Claim Allowances
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.