Fuel Tubes May Crack and Leak Fuel – 2019-2021 HME AF1 & 1871

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C. March 11 , 2022 *** IMPORTANT SAFETY RECALL*** NHTSA Recall No. 21 E-099 Cummins Campaign #C2532 I• 11II11111111 1I1 111111 1•1 11111111 I• 1111 111 I I I I 11 I I, I 11 I I I I 11 I, I, X12 Engines for NHTSA Recall 21 E-099: Engine Serial Number Vehicle Model Vehicle Identification Number (VIN) —-1£:——-11—r———,1:— Cummins Inc. Box 3005 Columbus, IN 47202-3005 USA Mail Code: 40911 Phone 1 800 CUMMINS care.cummins.com Cummins Inc. Box 3005 Columbus, IN 47202 – 3005 USA Mail Code: 40911 Phone: 1 800 CUMMINS care cummins.com *** IMPORTANT SAFETY RECALL*** NHTSA Recall No. 21E-099 Cummins Campaign #C2532 March 11, 2022 Dear Cummins Customer: This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Cummins Inc. has decided that a defect which relates to motor vehicle safety exists in certain Cummins X12 Engines that were manufactured between April 26, 2016 and November 1, 2021 and for installation in mixer, truck, coach, emergency vehicle, refuse truck, recreational vehicle and crane applications. This notice applies to the engines(s)/vehicles(s) listed on the enclosed table. You previously received a letter informing you of this recall and advising you that Cummins was developing a remedy. A remedy is now available for your engine/vehicle. WHAT IS THE PROBLEM? The fuel tubes between the fuel rail and the injectors for cylinders 4, 5 and 6 may be susceptible to cracking, resulting in a high pressure fuel leak. A high pressure fuel leak in the presence of an ignition source may increase the risk of a fire. WHAT ARE WE DOING ABOUT THE PROBLEM? Cummins has released field Safety Campaign #C2532, X12 CM2350 X119B and X12 CM2450 X137B Fuel Injector Supply Line Safety Campaign to correct this condition by replacing the fuel tubes with new fuel tubes and installing vibration isolators for cylinders 4,5 and 6. This campaign is currently available at Cummins Distributors and authorized Warranty dealers. The repair will be completed free of charge and most applications will require approximately 2 hours to complete. WHAT SHOULD YOU DO? Contact the nearest Cummins Distributor or authorized Warranty Dealer to arrange to have this campaign performed on your engine. The distributor or dealer will work with you to schedule the best date to complete the repair. In the meantime, Cummins advises you to periodically check the injector fuel tubes for signs of leaking and to seek repairs if leaks are identified. If a leak occurs, the operator may smell diesel fuel or observe a mist. C Cummins Inc. Box 3005 Columbus, IN 47202 – 3005 USA Mail Code: 40911 Phone: 1 800 CUMMINS care cummins.com WHO SHOULD YOU CONTACT IF YOU HAVE FURTHER QUESTIONS OR CONCERNS? If you have questions or concerns about this recall, please contact your local Cummins Distributor or authorized warranty dealer. You may also contact Cummins Care at 1-800- CUMMINS (1-800-286-6467), or visit our website at care.cummins.com. If you have a complaint relative to this recall, you may report it to the following: Administrator National Highway Traffic Safety Administration 1200 New Jersey Avenue, SE Washington, DC 20590 You may also call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. If you have not registered your Cummins product, please complete the enclosed registration card or register your product at https://prodreg.cummins.com/prodreg/#/webform/contactInfo. If you are no longer the owner of the generators(s) listed on the enclosed table, please forward this notice to the new owner or provide the new owner’s contact information to Cummins so that we can notify them of this recall. Federal law requires vehicle lessors receiving this recall notice to forward a copy of this notice to the lessee within ten (10) days. Also, it is a violation of Federal law for a dealer to deliver a new vehicle or equipment covered by this recall notice under a sale or lease until the defect has been remedied. Cummins is taking this action in the interest of your safety and satisfaction with our products. We apologize for any inconvenience and thank you for your attention to this matter. Sincerely, Campaign Administrator Cummins Inc. C.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-095 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : HME, Inc. Submission Date : MAY 20, 2022 NHTSA Recall No. : 22V-095 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : HME, Inc. Address : 1950 Byron Center Ave. Wyoming MI 49519 Company phone : 616-534-1463 Population : Number of potentially involved : 9 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2019-2021 HME AF1 and 1871 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall consists of the entire population of engines equipped with a certain Injector Fuel Supply (fuel tube) prior to implementation of corrective action and sold to HME from Cummins. Production Dates : FEB 22, 2019 – OCT 13, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : The fuel tubes between the fuel rail and the injector for cylinders 4,5 and 6 may be susceptible to cracking, resulting in a high pressure fuel leak. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A high pressure fuel leak in the presence of an ignition source may increase the risk of a fire. Description of the Cause : The subject fuel tubes (for cylinders 4,5 and 6) are susceptible to cracking due to metal fatigue failure resulting from a combination of vibration strain, assembly strain and material strength. Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 22V-095 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5536516 Component Name 2 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5486389 Component Name 3 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 3695190 Supplier Identification : Component Manufacturer Name : Usui International Corporation Address : 44780 Helm Street Plymouth Michigan 48170 Country : United States Chronology : 19Apr2021: Cummins received a Technical Service Request for a leaking fuel tube on an X12 engine. 19Apr-23Jul2021: Cummins received additional reports of leaking fuel tubes on X12 engines and escalated the issue for further investigation. 23Jul2021: Cummins initiated a Product Problem Solving (PPS) project to investigate the cause of the fuel tube leaks. Aug-Oct2021: Cummins continued to investigate this issue, including obtaining and analyzing parts from the field, conducting testing to understand the cause of the failures and evaluating potential corrective action. 19Oct2021: Cummins investigated a September 2021 fire on a vehicle equipped with an X12 engine. 25Oct2021: Cummins identified a leak of the #5 cylinder fuel tube as the cause of the fire. 28Oct2021: Cummins completed a Product Safety Hazard Analysis. 1Nov-23Nov2021: Cummins escalated the issue through its Product Safety Defect Board process. 23Nov2021: Based upon results of the investigation, the Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition. 7Dec2021: Cummins notified HME of safety campaign. Part 573 Safety Recall Report 22V-095 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : The subject fuel tubes for cylinders 4,5 and 6 (the rear half of the engine) will be replaced with new fuel tubes (having the same part number as the recalled components) and vibration isolators will be added to the fuel tubes. A recall-specific reimbursement plan will be provided on the Recall Portal for those units not covered by the manufacturer’s limited warranty. Cummins will be handling all quarterly reporting for this Recall. How Remedy Component Differs from Recalled Component : The replacement fuel tubes will also have vibration isolators. The fuel tube and vibration isolator combination will have a new part number. Identify How/When Recall Condition was Corrected in Production : The injector alignment to the cylinder head was improved by implementing an improved alignment fixture during engine assembly and vibration isolators were added to the fuel tubes during the engine assembly on November 2, 2021. Recall Schedule : Description of Recall Schedule : Cummins will conduct the recall and notify owners. Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : NR – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-095 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : HME, Inc. Submission Date : APR 12, 2022 NHTSA Recall No. : 22V-095 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : HME, Inc. Address : 1950 Byron Center Ave. Wyoming MI 49519 Company phone : 616-534-1463 Population : Number of potentially involved : 9 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2019-2021 HME AF1 and 1871 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall consists of the entire population of engines equipped with a certain Injector Fuel Supply (fuel tube) prior to implementation of corrective action and sold to HME from Cummins. Production Dates : FEB 22, 2019 – OCT 13, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : The fuel tubes between the fuel rail and the injector for cylinders 4,5 and 6 may be susceptible to cracking, resulting in a high pressure fuel leak. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A high pressure fuel leak in the presence of an ignition source may increase the risk of a fire. Description of the Cause : The subject fuel tubes (for cylinders 4,5 and 6) are susceptible to cracking due to metal fatigue failure resulting from a combination of vibration strain, assembly strain and material strength. Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 22V-095 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5536516 Component Name 2 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5486389 Component Name 3 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 3695190 Supplier Identification : Component Manufacturer Name : Usui International Corporation Address : 44780 Helm Street Plymouth Michigan 48170 Country : United States Chronology : 19Apr2021: Cummins received a Technical Service Request for a leaking fuel tube on an X12 engine. 19Apr-23Jul2021: Cummins received additional reports of leaking fuel tubes on X12 engines and escalated the issue for further investigation. 23Jul2021: Cummins initiated a Product Problem Solving (PPS) project to investigate the cause of the fuel tube leaks. Aug-Oct2021: Cummins continued to investigate this issue, including obtaining and analyzing parts from the field, conducting testing to understand the cause of the failures and evaluating potential corrective action. 19Oct2021: Cummins investigated a September 2021 fire on a vehicle equipped with an X12 engine. 25Oct2021: Cummins identified a leak of the #5 cylinder fuel tube as the cause of the fire. 28Oct2021: Cummins completed a Product Safety Hazard Analysis. 1Nov-23Nov2021: Cummins escalated the issue through its Product Safety Defect Board process. 23Nov2021: Based upon results of the investigation, the Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition. 7Dec2021: Cummins notified HME of safety campaign. Part 573 Safety Recall Report 22V-095 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : The subject fuel tubes for cylinders 4,5 and 6 (the rear half of the engine) will be replaced with new fuel tubes (having the same part number as the recalled components) and vibration isolators will be added to the fuel tubes. A recall-specific reimbursement plan will be provided on the Recall Portal for those units not covered by the manufacturer’s limited warranty. How Remedy Component Differs from Recalled Component : The replacement fuel tubes will also have vibration isolators. The fuel tube and vibration isolator combination will have a new part number. Identify How/When Recall Condition was Corrected in Production : The injector alignment to the cylinder head was improved by implementing an improved alignment fixture during engine assembly and vibration isolators were added to the fuel tubes during the engine assembly on November 2, 2021. Recall Schedule : Description of Recall Schedule : Cummins will conduct the recall and notify owners. Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : NR – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-095 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : HME, Inc. Submission Date : FEB 18, 2022 NHTSA Recall No. : 22V-095 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : HME, Inc. Address : 1950 Byron Center Ave. Wyoming MI 49519 Company phone : 616-534-1463 Population : Number of potentially involved : 9 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2019-2021 HME AF1 and 1871 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall consists of the entire population of engines equipped with a certain Injector Fuel Supply (fuel tube) prior to implementation of corrective action and sold to HME from Cummins. Production Dates : FEB 22, 2019 – OCT 13, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : The fuel tubes between the fuel rail and the injector for cylinders 4,5 and 6 may be susceptible to cracking, resulting in a high pressure fuel leak. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A high pressure fuel leak in the presence of an ignition source may increase the risk of a fire. Description of the Cause : The subject fuel tubes (for cylinders 4,5 and 6) are susceptible to cracking due to metal fatigue failure resulting from a combination of vibration strain, assembly strain and material strength. Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 22V-095 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5536516 Component Name 2 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5486389 Component Name 3 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 3695190 Supplier Identification : Component Manufacturer Name : Usui International Corporation Address : 44780 Helm Street Plymouth Michigan 48170 Country : United States Chronology : 19Apr2021: Cummins received a Technical Service Request for a leaking fuel tube on an X12 engine. 19Apr-23Jul2021: Cummins received additional reports of leaking fuel tubes on X12 engines and escalated the issue for further investigation. 23Jul2021: Cummins initiated a Product Problem Solving (PPS) project to investigate the cause of the fuel tube leaks. Aug-Oct2021: Cummins continued to investigate this issue, including obtaining and analyzing parts from the field, conducting testing to understand the cause of the failures and evaluating potential corrective action. 19Oct2021: Cummins investigated a September 2021 fire on a vehicle equipped with an X12 engine. 25Oct2021: Cummins identified a leak of the #5 cylinder fuel tube as the cause of the fire. 28Oct2021: Cummins completed a Product Safety Hazard Analysis. 1Nov-23Nov2021: Cummins escalated the issue through its Product Safety Defect Board process. 23Nov2021: Based upon results of the investigation, the Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition. 7Dec2021: Cummins notified HME of safety campaign. Part 573 Safety Recall Report 22V-095 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : The subject fuel tubes for cylinders 4,5 and 6 (the rear half of the engine) will be replaced with new fuel tubes (having the same part number as the recalled components) and vibration isolators will be added to the fuel tubes. A recall-specific reimbursement plan will be provided on the Recall Portal for those units not covered by the manufacturer’s limited warranty. How Remedy Component Differs from Recalled Component : The replacement fuel tubes will also have vibration isolators. The fuel tube and vibration isolator combination will have a new part number. Identify How/When Recall Condition was Corrected in Production : The injector alignment to the cylinder head was improved by implementing an improved alignment fixture during engine assembly and vibration isolators were added to the fuel tubes during the engine assembly on November 2, 2021. Recall Schedule : Description of Recall Schedule : Cummins will conduct the recall and notify owners. Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : NR – NR * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-095 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : HME, Inc. Submission Date : JUN 29, 2022 NHTSA Recall No. : 22V-095 Manufacturer Recall No. : 21E-099 Manufacturer Information : Manufacturer Name : HME, Inc. Address : 1950 Byron Center Ave. Wyoming MI 49519 Company phone : 616-534-1463 Population : Number of potentially involved : 9 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2019-2021 HME AF1 and 1871 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall consists of the entire population of engines equipped with a certain Injector Fuel Supply (fuel tube) prior to implementation of corrective action and sold to HME from Cummins. Production Dates : FEB 22, 2019 – OCT 13, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : The fuel tubes between the fuel rail and the injector for cylinders 4,5 and 6 may be susceptible to cracking, resulting in a high pressure fuel leak. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A high pressure fuel leak in the presence of an ignition source may increase the risk of a fire. Description of the Cause : The subject fuel tubes (for cylinders 4,5 and 6) are susceptible to cracking due to metal fatigue failure resulting from a combination of vibration strain, assembly strain and material strength. Identification of Any Warning that can Occur : NR Involved Components : Part 573 Safety Recall Report 22V-095 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5536516 Component Name 2 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 5486389 Component Name 3 : Injector Fuel Supply Tube Component Description : Fuel tube between fuel rail and fuel injector Component Part Number : 3695190 Supplier Identification : Component Manufacturer Name : Usui International Corporation Address : 44780 Helm Street Plymouth Michigan 48170 Country : United States Chronology : 19Apr2021: Cummins received a Technical Service Request for a leaking fuel tube on an X12 engine. 19Apr-23Jul2021: Cummins received additional reports of leaking fuel tubes on X12 engines and escalated the issue for further investigation. 23Jul2021: Cummins initiated a Product Problem Solving (PPS) project to investigate the cause of the fuel tube leaks. Aug-Oct2021: Cummins continued to investigate this issue, including obtaining and analyzing parts from the field, conducting testing to understand the cause of the failures and evaluating potential corrective action. 19Oct2021: Cummins investigated a September 2021 fire on a vehicle equipped with an X12 engine. 25Oct2021: Cummins identified a leak of the #5 cylinder fuel tube as the cause of the fire. 28Oct2021: Cummins completed a Product Safety Hazard Analysis. 1Nov-23Nov2021: Cummins escalated the issue through its Product Safety Defect Board process. 23Nov2021: Based upon results of the investigation, the Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition. 7Dec2021: Cummins notified HME of safety campaign. Part 573 Safety Recall Report 22V-095 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Dec2021: HME worked with Cummins to verify current inventory of uninstalled engines and which needed to be remedied. DEC2021: Affected uninstalled engines are repaired by Cummins. Dec2021: HME provides owner names and addresses for notification letters, which Cummins will send. Jan-Feb2022: HME transitions responsibility for NHSTA related items and training starts. Feb2022: HME files on NHSTA website. Description of Remedy : Description of Remedy Program : The subject fuel tubes for cylinders 4,5 and 6 (the rear half of the engine) will be replaced with new fuel tubes (having the same part number as the recalled components) and vibration isolators will be added to the fuel tubes. A recall-specific reimbursement plan will be provided on the Recall Portal for those units not covered by the manufacturer’s limited warranty. Cummins will be handling all quarterly reporting for this Recall. How Remedy Component Differs from Recalled Component : The replacement fuel tubes will also have vibration isolators. The fuel tube and vibration isolator combination will have a new part number. Identify How/When Recall Condition was Corrected in Production : The injector alignment to the cylinder head was improved by implementing an improved alignment fixture during engine assembly and vibration isolators were added to the fuel tubes during the engine assembly on November 2, 2021. Recall Schedule : Description of Recall Schedule : Cummins will conduct the recall and send letters to owners (no notifications to be sent to dealers). Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : MAR 11, 2022 – MAR 11, 2022 * NR – Not Reported

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