NHTSA ID Number: 10211739
Manufacturer Communication Number: C2546B
TSB/Document Date: 2022-05-16
Summary
This Campaign is being launched to install a new fuel heater on certain B6.7 engines. This commercial action is to enable fuel heating capability on engines where no fuel heater has been installed. This is an update to a previously submitted communication.
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TSB/Document ID: C2546B
Replacement Service Bulletin Number:
MFR Communication Date: 2022-04-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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5/2/22, 1:34 PM
B6.7 Engine Mounted Fuel Heater Commercial Campaign for Bus, School Bus, RV, and Fire Truck
Warranty Field Campaign
Campaign Number: c2546
Revision: B
B6.7 Engine Mounted Fuel Heater Commercial
Campaign for Bus, School Bus, RV, and Fire Truck
Released Date: 14-Apr2022
Expiration Date (U.S. and
Canada): 15-Jul-2023
Expiration Date
(International
): 15-Jul-2023
Attention
U.S. / Canadian Distr./Branches and Div. Offices (Automotive)
This is to revise and replace Campaign 2546-A, dated 17-Mar-22. This revision is to:
1. Update the SRT list.
If additional information is required, please contact your Cummins Warranty Operations
Group Leader.
Description
This Campaign is being launched to install a new fuel heater on certain B6.7 engines.
Action
In order to qualify for repair under this field action, an engine:
1. will be covered regardless of coverage status, and
2. must show as OPEN on QuickServe® Online for this field action.
Note : The ESN list is attached for reference.
After verifying that the engine meets the above requirements, perform the following actions:
1. Install a new Fuel Heater in accordance with the applicable service procedure outlined within
Attachment B.
Material Disposition
Materials removed as a result of this field action must be scrapped.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/campaign/2025/c2546.html
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B6.7 Engine Mounted Fuel Heater Commercial Campaign for Bus, School Bus, RV, and Fire Truck
Reimbursements
Parts
Note : All parts listed are OPTIONAL. This campaign requires only ONE kit part
number to complete the repair. Claim ONLY the parts needed to complete the repair.
Please refer Attachment B detailed service instructions to identify and order the
appropriate kit part number.
The following parts are covered under this field action:
Part Number
Quantity
Description
571014300
1
KIT,HTR (OPTIONAL)
571014400
1
KIT,HTR (OPTIONAL)
571014500
1
KIT,HTR (OPTIONAL)
572725700
1
KIT,HTR (OPTIONAL)
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.
Labor Using Applicable Access Code and Time
SRT Code
Description
00-90F
Administrative time
99-00A
REMOVE AND INSTALL FUEL HEATER
Time (hrs)
Travel
Travel is covered under this field action. Towing is not covered under this field action.
Other Claimables
Consumables are not covered under this field action.
Claim Instructions
For Cummins Dealers, claims for this Field Campaign 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
https://quickserve.cummins.com/qs3/pubsys2/xml/en/campaign/2025/c2546.html
Code
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5/2/22, 1:34 PM
B6.7 Engine Mounted Fuel Heater Commercial Campaign for Bus, School Bus, RV, and Fire Truck
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:
WFEHTG
Attachments
Click here to see c2546_esn-list.xlsx
(/service/english/attachments/c2546_esn-list.xlsx) Click here to
see c2546_fuel_heater_service_instructions_attachment-b.pdf
(/service/english/attachments/c2546_fuel_heater_service_instructions_attachment-b.pdf)
Engine Family
Fuel System
ISBe4 (6 Cylinder) QSB6.7 ISB ISDe, ISD4.5,
ISD6.7 ISBe, ISB4.5, ISB6.7
ISBe4 (6 Cylinder) QSB6.7 ISB ISDe, ISD4.5,
ISD6.7 ISBe, ISB4.5, ISB6.7
Design Application
Market Application
All
All
All
All
Document History
Date
Details
Document Created; 27-Jan-2022
Update the Attachment B; 17-Mar-2022
Update the SRT list; 14-Apr-2022
Last Modified: 14-Apr-2022
https://quickserve.cummins.com/qs3/pubsys2/xml/en/campaign/2025/c2546.html
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B6.7 Engine Mounted Fuel Heater Commercial Campaign for Bus, School Bus, RV, and Fire Truck
https://cst.cummins.com http://edsprod.cummins.com https://gpst.cummins.com
https://quickserve.cummins.com https://parts.cummins.com https://store.cummins.com
https://wwsps.cummins.com https://access.cummins.com https://commerce.cummins.com
https://qsservices.cummins.com https://webparts.cummins.com https://qsservices.cummins.com
https://adminportal.cummins.com
https://quickserve.cummins.com/qs3/pubsys2/xml/en/campaign/2025/c2546.html
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