NHTSA ID Number: 10085361
Manufacturer Communication Number: TSB150033-062116
TSB/Document Date: 2016-12-02
Summary
THIS TECHNICAL SERVICE BULLETIN DESCRIBES THE RELEASE OF AND SERVICE INSTRUCTIONS FOR A NEW FUEL PUMP SHORT BLOCK SERVICE KIT TO ALLOW FOR REUSE OF THE EXISTING FUEL PUMP HEAD AND FUEL PUMP GEAR PUMP TO MAKE A COMPLETE FUEL PUMP. THIS IS AN UPDATE TO A PREVIOUSLY SUBMITTED COMMUNICATION.
New Fuel Pump Short Block Service Kits
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Technical Service Bulletin Number
TSB150033
Technical Service Bulletin
Subject
New Fuel Pump Short Block Service Kits
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
This document announces the release of a fuel pump short block.
Product Affected
ISX15
CM2250
ISX15 CM2250 SN
ISX15 CM2350 X101
PowerGen QSX15 CM2250
PowerGen QSX15 CM2250 ECF
QSX15 CM2250 ECF
QSX15 CM2350 X105
QSX15 CM2350 X106
Description of Change
A fuel pump short block service kit has been released. The short block fuel pump allows for the
reuse of the existing fuel pump head and fuel pump gear pump to make a complete fuel pump.
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New Fuel Pump Short Block Service Kits
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Figure 1, Fuel Pump Short Block
Reason for Change
To create an additional repair option.
Service Instructions
Below are a list of fuel pump malfunctions where the fuel pump short block service kit can be
used to repair the fuel pump:
Fuel pump camshaft damage.
Front and/or rear fuel pump camshaft bushing damage.
Stripped fuel pump mounting threads.
Stripped fuel pump gear pump mounting threads.
Stripped fuel pump head mounting threads.
Fuel pump roller tappet damage.
For fuel pump short block installation instructions. Reference Installation Instruction, Fuel
Pump Short Block Service Kit Installation Instructions, Bulletin 4908436.
In the event of a fuel pump plunger failure causing fuel pump tappet or fuel pump tappet roller
damage, see Technical Service Bulletin, Fuel Pump - Ceramic Plunger and Tappet Roller
Inspection and Repair, TSB140019 for repair direction.
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New Fuel Pump Short Block Service Kits
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Service Parts Availability
See Table 1 for fuel pump short block part numbers.
Table 1, Fuel Pump Short Block Service Kits
Engine Control Module
Part Number
Part Quantity
CM2250
2872658PX
1
CM2350
4307049
1
When ordering the fuel pump short block service kit, Part Number(s) 2872658PX and
4307049, the following must be done:
Two of fuel pump diamond-like coated tappet rollers, Part Number 4359134, must be
ordered if not previously installed or not within reuse guidelines.
Use care when handling the roller tappet(s). The diamond-like coated roller pin is free
floating and can fall out, resulting in damage to either the tappet roller or the pin. If the
tappet roller pin does fall out during installation, but the tappet roller and roller pin are not
damaged, the roller pin can be reinserted. Reference Technical Service Bulletin, New
Fuel Pump with Diamond-Like Coated Tappet Roller Pin, TSB150113.
Ceramic plunger and barrel assemblies (white in color) on certain CM2250 fuel pump
heads must be replaced with steel plunger and barrel assemblies, Part Number
4327258.
For ISX/QSX15 CM2350:
Additional part numbers must be ordered separately to complete a fuel pump repair
using fuel pump short block, Part Number 4307049. See Table 2 below.
If the fuel pump head does not meet inspect for reuse guidelines. The entire fuel pump
head must be replaced with fuel pump head, Part Number 4307004NX.
Table 2, Part Numbers to Order Separately with Fuel Pump Short Block, Part Number
4307049
Part Description
Part Number
Part Quantity
Tappet, Pump
4359134
2
Fuel Pump Mounting Gasket
3686758
1
Fuel Pump Head Gasket
2872513
1
4903514
1
CAUTION
Barrel and plunger options are not interchangeable between the ISX/QSX15 CM2250 and
the ISX/QSX15 CM2350 fuel pump head. Installation of barrel and plunger assembly, Part
Number 4327258, on the ISX/QSX15 CM2350 pump head will result in excess fuel in
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8/1/2016
New Fuel Pump Short Block Service Kits
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lubricating oil.
Part Identification
See Figure 2 below for visual barrel and plunger assembly differences.
Figure 2, Fuel Pump Barrel and Plunger Assemblies.
1. ISX/QSX15 CM2350.
2. ISX/QSX15 CM2250.
Document History
Date
2015-3-9
2015-4-27
2015-10-23
2016-5-12
2016-6-21
Details
Module Created
Link to Installation will not work.
Changed part number 2872226 to part number 4359134.
Updated Table 1 and Table 2. Modified Service Instruction section.
Updated title and Product Affected.
Last Modified: 14-Jul-2016
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New Fuel Pump Short Block Service Kits
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Copyright © 2000-2010 Cummins Inc. All rights reserved.
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8/1/2016
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TSB/Document ID: TSB150033-062116
Replacement Service Bulletin Number:
MFR Communication Date: 2016-07-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
MFR Component System:
MFR Component Subsystem:
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