NHTSA ID Number: 10117357
Manufacturer Communication Number: TSB170079-061920
TSB/Document Date: 2017-09-14
Summary
This Technical Service Bulletin announces that verification of aftertreatment component part numbers should be completed before ordering new parts as incorrect part numbers have been etched into aftertreatment components.
Incorrect Aftertreatment Part Number Etching
Page 1 of 5
Technical Service Bulletin Number
TSB170079
Technical Service Bulletin
Subject
Incorrect Aftertreatment Part Number Etching
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
Engine:
• B6.7 CM2350 B121B
• L9
CM 2350 L116B
• X15 CM2350 X114B
Chassis Make:
•
•
•
•
Freightliner®
International®
Kenworth®
Peterbilt®
Issue
Incorrect part numbers etched on aftertreatment components.
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2017/tsb170079.html
6/26/2017
Incorrect Aftertreatment Part Number Etching
Page 2 of 5
Resolution
• Before ordering an aftertreatment diesel particulate filter (DPF), aftertreatment
decomposition tube (DRT), aftertreatment diesel oxidation catalyst (DOC), or
aftertreatment selective catalytic reduction (SCR) catalyst, verify aftertreatment
component part numbers are correct for the specific aftertreatment system. Use Tables
1, 2, 3, and 4 below to verify part numbers.
• More information about part number identification and location can be found in the
corresponding service manual.
◦ See B6.7 CM2350 B121B Service Manual, Bulletin 5411223. Refer to Procedure
100-001 in Section E.
◦ See L9 CM2350 L116B Service Manual, Bulletin 5411330. Refer to Procedure
100-001 in Section E.
◦ See X15 CM2350 X114B Service Manual, Bulletin 5411181. Refer to Procedure
100-001 in Section E.
Table 1, X15 CM2350 X114B: International®
Aftertreatment
Assembly Part
Numbers
Affected Affected Aftertreatment Module Part
Module Numbers
EPN
Type
CPN
A054U783 4394393 DPF
A054U783 4394393 DRT
Incorrect
EPN
Correct
EPN
Comments
Incorrect Correct
CPN
CPN
4394580 is a
DPF for a B6.7
engine;
diameter is
11.5 in.
4394577 is a
DPF for an
A055B965 A055B953 4394580 4394577
X15 engine;
diameter is 14
in. 4394577
must be
ordered
instead of
4394580.
A054Z388 A054Z389 4394655 4394654 4394655 is a
DRT for a B6.7
engine;
diameter is
11.5 in.
4394654 is a
DRT for an
X15 engine;
diameter is 14
in. 4394654
must be
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2017/tsb170079.html
6/26/2017
Incorrect Aftertreatment Part Number Etching
Page 3 of 5
Table 1, X15 CM2350 X114B: International®
ordered
instead of
4394655.
A054U781 4394717 DOC
4394756 is a
DOC for an
X15 engine.
4394855 is
also a DOC for
an X15 engine.
Both the same
diameter and
size. The only
difference is
A055J297 A055N645 4394756 4394855
that 4394756
has extra OEM
brackets
welded to end
flange of DOC.
DOC may or
may not fit
depending on
OEM truck
configuration.
Table 2, L9 CM2350 L116B: Kenworth™ and Peterbilt™
Aftertreatment
Assembly Part
Numbers
Affected Affected Aftertreatment Module Part
Module Numbers
EPN
Type
CPN
A052V104 4394889 DOC
Incorrect
EPN
Correct
EPN
Comments
Incorrect Correct
CPN
CPN
A055B958 A055B956 -
4394578 was
etched on
DOC
correctly. EPN
was etched
incorrectly.
4394578
Low risk
because part
ordering is
done using
CPN and not
EPN.
Table 3, L9 CM2350 L116B: Freightliner®
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2017/tsb170079.html
6/26/2017
Incorrect Aftertreatment Part Number Etching
Page 4 of 5
Table 3, L9 CM2350 L116B: Freightliner®
Aftertreatment
Affected Affected Aftertreatment Module Part
Assembly Part
Module Numbers
Numbers
EPN
CPN
Type
A054M325 4394923 DPF
Incorrect
EPN
Correct
EPN
Comments
Incorrect Correct
CPN
CPN
4394580 is a
DPF for a B6.7
engine.
4394578 is a
DPF for an L9
engine. Both
part numbers
have same
diameter but
different
A055B965 A055B956 4394580 4394578 lengths.
4394580 will
physically fit
but when
aftertreatment
system is
installed onto
vehicle total
length will be
too short by
5.5 in.
Table 4, B6.7 CM2350 B121B: International®
Aftertreatment
Assembly Part
Numbers
Affected Affected Aftertreatment Module Part
Module Numbers
EPN
Type
CPN
A054U213 4394366 SCR
Incorrect
EPN
Correct
EPN
Comments
Incorrect Correct
CPN
CPN
A055H540 A055H450 -
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2017/tsb170079.html
4394697 4394697 was
etched on
SCR
correctly.
EPN was
etched
incorrectly.
Low risk
because part
ordering is
done using
6/26/2017
Incorrect Aftertreatment Part Number Etching
Page 5 of 5
Table 4, B6.7 CM2350 B121B: International®
CPN and not
EPN.
Document History
Date
2017-6-19
Details
Module Created
Last Modified: 21-Jun-2017
Copyright © 2000-2010 Cummins Inc. All rights reserved.
https://qsol.cummins.com/qs3/pubsys2/xml/en/tsb/2017/tsb170079.html
6/26/2017
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TSB/Document ID: TSB170079-061920
Replacement Service Bulletin Number:
MFR Communication Date: 2017-06-21
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Communication Type: Service Bulletin/Repair Instructions
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