TSB140169-120114

Fuel Lift Pump Obsoleted and Superseded on ISX and QSX Engines
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Technical Service Bulletin Number
TSB140169
Technical Service Bulletin
Subject
Fuel Lift Pump Obsoleted and Superseded on ISX and QSX Engines
Warranty Statement
The information in this document has no effect on present warranty coverage or repair
practices, nor does it authorize TRP or Campaign actions.
Contents
Product Affected
ISX15 CM2250
ISX15 CM2250 SN
ISX15 CM2350 X101
QSX15 CM2250 ECF
PowerGen QSX15 CM2250
PowerGen QSX15 CM2250 ECF
ISX12/ISX11.9 CM2250
ISX12 CM2350 X102
QSX11.9 CM2250 ECF
https://qsol2.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140169.html
2/2/2015
Fuel Lift Pump Obsoleted and Superseded on ISX and QSX Engines
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Reason for Change
To address instances of fault code 2265, Electric Lift Pump for Engine Fuel Supply Circuit Voltage Above Normal or Shorted to High Source, due to open circuits in the fuel lift pump.
Service Directions
Perform troubleshooting as published in the corresponding Fault Code Troubleshooting
Manual, before replacing the electric lift pump.
Service Parts Availability
Service parts became available on 15 December 2014. See Table 1 for part numbers.
Table 1, Fuel Lift Pump Part Numbers
Part Description
Voltage
Obsolete Part Number
New Part Number
Fuel lift pump
12 V
3686718
3690768
Fuel lift pump
24 V
3686719
3691145
Part Structure
The part is backward compatible and transparent to assembly.
The existing fuel lift pump part numbers have been obsoleted and superseded by the new
fuel lift pump part numbers.
Part Disposition
Use existing part number inventory before using the new part number.
Production Status
The implementation date for production has not been determined.
Publications Affected
None.
Document History
Date
2014-12-1
Details
Module Created
Last Modified: 19-Jan-2015
Copyright © 2000-2010 Cummins Inc. All rights reserved.
https://qsol2.cummins.com/qs3/pubsys2/xml/en/tsb/2014/tsb140169.html
2/2/2015