154063-5420 ZEXEL 9 421 611 663 BOSCH COVER 9421611663 1540635420 1157211840

Table 1
Revision Summary of Changes
01 Added prefix S/N:8811-8299 Description Of Change: The new Diesel Exhaust Fluid (DEF) control unit software now used, has been released to improve the priming performance of DEF pumps in cold environments.Adaptable To:
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.The new and former part numbers are listed in Table 2.
Table 2
Required Parts
Qty Dosing Control Unit (DCU) Dosing Control Unit (DCU) Voltage New Part Number Part Name Former Part Numbers(1)
1 Restriction on Hazardous Substance (RoHS) (DCU) 24V 593-7031 Engine Software 567-5763
1 Restriction on Hazardous Substance (RoHS) (DCU) 12V 593-7030 Engine Software 567-5761
1 Non-Restriction on Hazardous Substance (RoHS) (DCU) 24V 593-7033 Engine Software 539-3577
1 Non-Restriction on Hazardous Substance (RoHS) (DCU) 12V 593-7032 Engine Software 539-3576
(1) The former part number listed is for reference only and may differ.The new software is available in the form of a flash file through the Caterpillar Service Information System (SIS). A newer part number may be available. SIS web only displays the latest available flash file.