105931-0511 ZEXEL 9 420 610 011 BOSCH GOVERNOR 9420610011 1059310511 5157201990

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 "PS52035" as the Part Numberand "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
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
30Jun2013
PROBLEM
The existing 162-9612 Fuel Transfer Pump Group that is part of the 162-9608 Unit Injector Hydraulic Pump Group can fail on certain 3126B Gen Set Engines. The failure has been associated to undersized splines inside of the fuel transfer pump. This may cause an accelerated wear to the splines of the fuel transfer pump and the unit injector hydraulic pump.
AFFECTED PRODUCT
Model Identification Number
3126B BDZ00012-00013, 24-38, 49-105, 107-350, 357-364, 369-631, 650-972, 981-986, 994-1027, 1029-1288, 1290-1471, 1487-1497, 1559-2522
PARTS NEEDED
Qty
Part Number Description
1 20R0122 PUMP GP-INJECTOR
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 3% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
Replace the failed 162-9608 Unit Injector Hydraulic Pump Group with a 20R-0122 Unit Injector Hydraulic Pump Group.
Note: Refer to Image1 to determine that the correct part is being installed. The correct fuel transfer pumps will have an "H" stamped in the part.
Refer to SENR9589, Disassembly and Assembly for instructions on the removal and installation of the unit injector hydraulic pump.
Image1
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-12000 hrs,
0-72 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 2.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.