NHTSA ID Number: 11030952
Manufacturer Communication Number: T7020
TSB/Document Date: 2026-04-07
Summary
This Temporary Repair Practice describes removal and replacement of fuel injectors which may be degraded, resulting in repeat instances of aftertreatment fault codes and/or excessive aftertreatment system regeneration. This is an update to a previously submitted communication.
Temporary Repair Practice
TRP Number: t7020
Revision: G
X15
Nozzle Replacement on Fuel Injectors US Focus TRP
Released Date: 19-Mar-2026
Expiration Date (U.S. and Canada): 15-Dec-2028
Expiration Date (International
): 15-Dec-2028
Attention
U.S. / Canadian Dealers
U.S. / Canadian Distr./Branches and Div. Offices (Automotive)
This is to revise and replace TRP 7020-F, dated 10-Jul-2025. This revision is to:
1. Extend expiration date to 15-Dec-2028, and
2. Update Action, and
3. Update Other Claimables.
If additional information is required, please contact your Cummins
Warranty Operations Group Leader.
Description
This TRP is being issued to repair degraded fuel injectors with guidance from TSB230162 on certain X15
CM2450 X134B and X142B certified engines. Where authorized,
the full set of injectors will be replaced addressing a potential concern for fuel injector degradation, avoiding excessive regeneration or excessive soot accumulation in
DPF that leads to an engine light for associated fault codes listed below. This field action authorizes certified repair locations to remove and replace the fuel injectors
with renozzled and improved fuel injectors as received from a certified ReNozzle center. Completion of TSB230162 is required by all Distributor and Dealer Channels for
repairs claimed to this TRP.
Note : For Guidance on Timing and TRP Flow, please review Attachment B, FAQ Section, page 4.
Action
In order to qualify for repair under this field action, an engine:
1. must be within coverage limits for a valid warranty or extended coverage certificate covering fuel injector and,
2. must record one or more of any of the following symptoms or fault codes; FC1921, FC1922, FC1981, FC2639, FC3375, FC3376, Regeneration Excessive, and
3. must complete TSB230162, and
4. must be directed to this TRP by troubleshooting guidance or receive Cummins Care Instruction to continue with TRP7020, and
5. must show as OPEN on QuickServe® Online for this field action.
Note : The ESN list is attached for reference.
Note : Where appropriate, for engines that do not have a valid warranty or an extended coverage certificate can file an Admin Only claim to remove
the engine from eligibility.
After verifying that the engine meets the above requirements, perform the following actions:
1. Complete TSB230162.
2. Before beginning any work prescribed below, you must have been directed to this TRP by a troubleshooting step or acquire authorization from Cummins Care. NOTE:
No authorization is required for those utilizing Guidanz as part of their service repair.
3. Order the Packaging Box, Part #6520055.
4. Please refer to the appropriate Service Manual. Follow procedure 006-026 in Section 6 for Injector, proceed to remove all 6 fuel injectors.
5. ALL removed injectors MUST be cleaned prior to packaging. Complete the cleaning procedure for the injectors. Please refer to Attachment B, Pre-Shipping Cleaning
Procedure for detailed instructions.
6. Once ALL injectors have been removed, follow instructions as outlined in Attachment B to ensure proper packaging. To ensure appropriate component labels, print
and fill up Attachment C. This should be placed inside the box as illustrated in Attachment B.
7. The Service provider MUST use the shipping label as indicated in Attachment B. A QR Code has been provided for your convenience. Complete the information as
required and submit the form. Generate the label and affix to the packaging box. As an alternative, the actual url link has been provided.
Note : The Shipping Label will auto populate to the nearest fuel injector renozzle location. If FedEx is not the official shipping entity for
Shipments, this field action limits to 1-way shipping cost of $55.50 and can be filed in Other Claimables section as "Campaign Supplies".
Renozzle location addresses can be found in the Attachment B.
8. If FC1922 is present, perform the DPF cleaning. Referring to Owner's Manual Section 564-101-047, choose the cleaning method that best fits the application. Costs
associated with third-party support for DPF cleaning, including the transfer and return of the DPF, can be claimed in the Other Claimables section, summarized as
"Campaign Supplies".
Note : In the claim narrative, please include DPF Cleaning Method, and related costs. If the DPF is damaged, or otherwise deemed unusable,
take appropriate steps to replace the DPF and claim to the existing coverage supporting the FIAS Fail Code.
9. Once Fuel Injectors have been returned from ReNozzle center, proceed to install fuel injectors per procedure 006-026. All required seals and additional components
for installation will be included within the returned packaging box.
10. Once installation is completed, and if any of the fault codes, 1921, 2639, 3375, 3376 are logged, proceed to perform the Aftertreatment Diesel Particulate Filter (DPF)
Regeneration.
Note : The DPF Regeneration is intended to clean the Aftertreatment System and clear any remaining Fault Codes related to this issue. Please
claim the SRT 99-901, QTY of 1 for Regeneration reimbursement.
11. Perform the Injector Performance Test (IPT) to verify appropriate functionality of all 6 fuel injectors.
Note : Replace any fuel injectors that fail to pass the IPT Test with a ReCon injector, Cummins
P/N 651358900PX or the ReCon equivalent. All
failed injectors MUST be returned to Cummins
ReCon.
Note : All fuel injectors replaced with part number 651358900PX or the ReCon equivalent are subjected to audit based on IPT results and can
ONLY be claimed against existing warranty coverage. Replacement of renozzled fuel injectors should be considered ONLY if IPT results register
as FAILED.
Material Disposition
Where applicable, items removed should be returned to ReCon for core credit. Unless otherwise indicated, items with no core liability can be scrapped.
Reimbursements
Parts
Note : Parts listed are OPTIONAL, and should ONLY be used if the provided renozzled injectors fail the Injector Performance Test (IPT). Failed
injectors should be returned to Cummins ReCon.
The following parts are covered under this field action:
Part Number
Quantity
Description
651358900
1
KIT,INJ (RECON, POST IPT - INFO ONLY)
651358900PX
1
KIT,INJ (RECON, POST IPT - INFO ONLY)
652005500
1
KIT,PTS DST CENTER
Note : SRTs to gain access that are required to complete the repair, that are sufficiently explained in the claim narrative, may also be claimed on this
action.
Note : All SRTs listed are OPTIONAL. Select ONLY the appropriate SRTs for the repair performed.
Labor Using Applicable Access Code and Time
SRT Code
Description
00-90F
Technician Administrative Time - Field Action Service
Events (OPTIONAL)
06-0XP
Injector - Remove and Install, All - X15
CM2450
X134B (OPTIONAL)
06-1Y9
Injector - Remove and Install, All - X15
CM2450
X142B
11-0ZU
Aftertreatment System, (Vertical) - Remove and
Install - X15 CM2450 X134B (OPTIONAL)
11-0ZV
Aftertreatment System, (Horizontal) - Remove and
Install - X15
CM2450 X134B (OPTIONAL)
11-23T
Aftertreatment System, (Vertical) - Remove and
Install - X15 CM2450 X142B
11-23U
Aftertreatment System, (Horizontal) - Remove and
Install - X15 CM2450 X142B
14-006
Injector - Performance Test , One or All (Electronic
Service Tool) (OPTIONAL)
99-00D
DPF CLEANING (OPTIONAL - QTY 1) (OPTIONAL QTY 1)
99-901
Aftertreatment Diesel Particulate Filter (DPF) Regeneration (CMI) (QTY 1)
99-902
PRE-PACKAGING INJECTOR CLEAN UP (OPTIONAL QTY 1)
99-008
TSB230162; ECM Image - Obtain and Submit
(OPTIONAL - QTY 1)
Time (hrs)
Travel
Travel is not covered under this field action Towing is not covered under this field action.
Other Claimables
Consumables are covered under this field action.
Note : Additional non-Cummins
parts, such as o-rings, gaskets and fasteners, that are required to complete the repair, but not listed, may be claimed
in Other Claimables. Please consolidate all consumables and claim them as one line item in Other Claimables titled CAMPAIGN SUPPLIES or other
appropriate selections. Please include brief summaries on the details of items claimed. A lack of documentation in the narrative may result in a
reduction in claim reimbursement or claim denial.
Claim Instructions
For Cummins Dealers, claims for this TRP must be filed via RAPIDSERVE™ Web (rsw.cummins.com). For information regarding RAPIDSERVE™ Web, please reference the
"Warranty" tab in QuickServe® Online. If there are additional questions, please contact your local Cummins
Distributor.
Claim Codes
Description
Code
Account Code:
65
Pay Code:
North America Distributor = X
Pay Code:
North America Dealer = D
Pay Code:
International
Distributor = I
Pay Code:
International
Dealer = R
Failure Code:
WFIAS3
Attachments
Click here to see t7020_esn-list-a.xlsx
(/service/english/attachments/t7020_esn-list-a.xlsx) Click here to see t7020_attachment-b.pdf
(/service/english/attachments/t7020_attachment-b.pdf) Click here to see t7020_attachment-c.pdf
(/service/english/attachments/t7020_attachment-c.pdf)
Engine Family
Fuel System
ISX, QSX15 ISX15![]()
ISX, QSX15 ISX15![]()
Design Application
Market Application
Automotive
Automotive
Automotive
Automotive
Document History
Date
Details
Document Created; 06-Jun-2024
Update the Action; 13-Jun-2024
Update the Action, SRT list; 02-Jul-2024
Update the Description, update the Action, update the Material Disposition, update the Reimbursements; 03-Sep-2024
Update the Action and Parts Description, update the ESN list; 31-Oct-2024
Extend the Expiration date, update the Action, update the Material Disposition, update the Reimbursements, update
Attachment B; 12-Jun-2025
Update narrative; 10-Jul-2025
Extend expiration date to 15-Dec-2028, Update Action and Update Other Claimables; 19-Mar-2026
Last Modified: 19-Mar-2026
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TSB/Document ID: T7020
Replacement Service Bulletin Number:
MFR Communication Date: 2026-03-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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