23E030 Generator Set Fuel Hose May Cause Gas Leak – Cummins Onan QG 2800i, & QG 2800i EVAP Generator Sets

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23E-030 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Submission Date : Cummins, Inc. APR 04, 2023 NHTSA Recall No. : 23E-030 Manufacturer Recall No. : PG5215 Manufacturer Information : Manufacturer Name : Cummins, Inc. Address : Box 3005 Mail Code COB118 Columbus IN 47202-3005 Company phone : 812-377-5000 Population : Number of potentially involved : 15,622 Estimated percentage with defect : 75 % Equipment Information : Brand / Trade 1 : Model : Cummins Power Generation Onan QG 2800i Part No. : 2.8HGLAA-8302A Size : NR Function : Generator Sets Descriptive Information : Cummins is recalling the entire population of the subject model generator sets built until corrective action was implemented on 2/10/2023. These generators are intended for use in recreational vehicles and were sold to recreational vehicle OEMs for installation as original equipment and directly to owners as aftermarket equipment. Approximately 14,799 of Onan QG 2800i are included in the recall population. Note that the “Number Potentially Involved” provided below includes approximately 4000 units that do not contain the defect, but Cummins is recalling the entire population because it is unable to identify them by generator set serial number Production Dates : MAR 03, 2020 – JAN 31, 2023 Part 573 Safety Recall Report 23E-030 Page 2 Brand / Trade 2 : Model : Cummins Power Generation Onan QG 2800i EVAP Part No. : 2.8HGLAA-8303A Size : NR Function : Generator Sets Descriptive Information : Cummins is recalling the entire population of the subject model generator sets built until corrective action was implemented on 2/10/2023. These generators are intended for use in recreational vehicles and were sold to recreational vehicle OEMs for installation as original equipment and directly to owners as aftermarket equipment. Approximately 823 of model Onan QG 2800i EVAP are included in the recall population. Note that the “Number Potentially Involved” provided below includes approximately 4000 units that do not contain the defect, but Cummins is recalling the entire population because it is unable to identify them by generator set serial number Production Dates : MAR 05, 2020 – JAN 03, 2023 Description of Defect : Description of the Defect : This fuel hose between the inline fuel filter and the Injection Pump Module (IPM) may have inadequate clamp force, possibly resulting in a gasoline leak. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A gasoline leak in the presence of an ignition source may increase the risk of fire. Description of the Cause : The cause of the issue is an inadequate specification of the fuel hose. . Identification of Any Warning that can Occur : Bystanders may see or smell gasoline. Involved Components : The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23E-030 Page 3 Component Name : Hose, Fuel Component Description : Gasoline fuel hose between the IPM and fuel filter. Component Part Number : A064P026 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : 1/18/2023 – 1/22/2023 – While attending the Florida RV SuperShow, Cummins personnel received reports of fuel leaks on the subject generators. During this same time, Cummins received a report of fuel leaks directly from Pleasure-Way. 1/18/2023 – 2/10/2023 – Cummins assembled a team to investigate the issue. Cummins initiated engineering pull tests on the subject joint. 2/10/2023 – 2/21/2023 – Cummins initiated a stop-ship on the subject generators from the manufacturing plant and the distribution center as it continued the investigation into the cause of the issue. Cummins determined that production samples had fuel hose clamping force less than the specification. The engineering team investigated variables that may have caused the issue and determined that inadequate specification of the hose was the cause. Cummins validated and released a new part number for a remedy hose to meet the requirements. Cummins conducted a review of its claims records and identified 12 warranty claims of a fuel leak and/or fuel hoses disconnecting from the IPM and 16 reports of leaks from OEMs and Cummins dealers/ distributors. Cummins isolated and inspected and, where necessary, repaired, inventory of the subject generators at the manufacturing plant, the distribution center and some OEMs. 2/22/2023 – 3/9/2023– Cummins conducted a Product Safety Hazard Analysis to evaluate the potential safety risk on fielded units. 3/10/2023-3/28/2023 – Cummins escalated the issue through its Product Safety Defect Determination Process. 3/28/2023 – Based upon the results of the investigation, the Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition. To date, there have been no reports of fires or injuries related to this issue. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23E-030 Page 4 Description of Remedy : Description of Remedy Program : The remedy is to inspect and, if the unit has the defect, to replace the subject fuel hose and associated clamps. 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 : Identify How/When Recall Condition was Corrected in Production : The remedy fuel hose has a unique part number A073T925. Production began with the remedy fuel hose on 02/21/2023. Recall Schedule : Description of Recall Schedule : For original equipment, Cummins expects to notify its OEM customers on or before 4/14/2023. Pending consultation and agreement with the OEMs, Cummins will conduct the recall, including sending owner notifications. The timing of owner notification will be determined in consultation with the OEMs. For aftermarket/replacement equipment, Cummins expects to commence notification to dealers/distributors and known owners in accordance with the “Planned Dealer Notification” and “Planned Owner Notification” schedule. Planned Dealer Notification Date : APR 28, 2023 – APR 28, 2023 Planned Owner Notification Date : JUN 02, 2023 – JUN 02, 2023 Purchaser Information : The following manufacturers purchased this defective/noncompliant equipment for possible use or installation in new motor vehicles or new items of motor vehicle equipment: Name : Chinook Motor Coach, LLC Address : 1482 North Eel River Cemetery Road Peru IN 46970 Country : US Company Phone : NR The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23E-030 Page 5 Name : Forest River Inc. Address : 900 County Road One Elkhart IN 46514 Country : US Company Phone : NR Name : Jayco Inc. Address : 903 South Main Street Middlebury IN 46540 Country : US Company Phone : NR Name : Phoenix USA Inc. Address : 3504 Cooper Drive Elkhart IN 46514 Country : US Company Phone : NR Name : Pleasure-Way Industries Ltd. Address : 302 Portage Ave Saskatoon 00 SK S7J 4C6 Country : CA Company Phone : NR Name : Thor Motorcoach Address : 3322 Middlebury Street Elkhart IN 46516 Country : US Company Phone : NR Name : Winnebago Industries Address : 13200 Pioneer Trail Eden Prarie MN 55347 Country : US Company Phone : NR Name : Lance Camper Manufacturing Corporation Address : 43120 Venture Street Lancaster CA 93535 Country : US Company Phone : NR The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23E-030 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Name : Midwest Automotive Designs Address : 1826 Leer Drive Elkhart IN 46514 Country : US Company Phone : NR Name : Midway Specialty Vehicles Inc. Address : 2940 Dexter Dr. Elkhart IN 46514 Country : US Company Phone : NR Name : Explorer Van Company Address : 2749 N. Fox Farm Road Warsaw IN 46580 Country : US Company Phone : NR Name : Sportsmobile Inc. Address : 250 Court St. Huntington IN 46570 Country : US Company Phone : NR Name : Prime-Time Specialty Vehicle Inc. Address : 56616 Elk Park Dr. Elkhart IN 46516 Country : US Company Phone : NR Name : Air-Stream, Inc. Address : 1001 West Pike St. Jackson Center OH 45334 Country : US Company Phone : NR * NR – Not Reported

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Technical Service Bulletin Technical Service Bulletin: TSB230067 Released Date: 17-Apr-2023 Safety Campaign #5215 – HGLAA Fuel Hose Leak Safety Campaign #5215 – HGLAA Fuel Hose Leak Warranty Statement Contents The information in this document authorizes specific changes to the repair practice for failures covered under product warranty coverages. Product Affected • HGLAA Spec A • 2.8 HGLAA-8302 (Gasoline) • 2.8 HGLAA-8303 (EVAP) Issue Symptom: • Fuel line connection from fuel filter to the inlet of the Injection Pump Module (IPM) may not be secured properly Root Cause: • Incorrect hose used during assembly Verification/Confirmation • If the gasoline generator set has a serial number before B230206933, inspect to see if the fuel hose from filter to Injection Pump Module (IPM) has the specified colored writing on hose. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 1 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Refer to document TSB230067-A Safety Campaign #5215 HGLAA Fuel Hose Leak Affected Generator Set Serial Numbers for a table of affected units. Resolution Replace Oeitker (OET) clamp with new OET Clamps while using OET Pilers. Use Kit PN A073U493 See Service Instructions sections below, for proper fuel line, clamps, and installation instructions. Service Instructions 1. If unit at OEM, unbox the unit from original packaging (not applicable for Installed Units). 2. Turn off the HGLAA generator set , Perform LOTO . 3. Remove the door enclosure (PN A062F793) by twisting the knob to open. Note: If enclosure needs to be removed for adequate access be mindful of the enclosure tabs at the base pan. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 2 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 1, Lock Location to Remove Service Door 4. Remove top cover of air filter housing (PN A060W101) and filter by hand. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 3 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 2, Location of Air Filter Removal Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 4 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 3, Extruded View of Air Filter Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 5 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 4, Air Filter Box Open 5. Inspect Fuel hose for colored writing. If the hose has white lettering, replace the hose. If it has yellow/green writing, skip to step 14. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 6 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 5, Example of Hose Colored Writing 6. Unplug the fuel outlet hose (PN A057B741) using the quick disconnect feature. Pull the Green Part in the Direction of arrow, pull the green quick link lock upwards to release lock as indicated (in direction of arrow). Safety consideration: a. Use cut resistant hand gloves and mask the cable tie before pulling the hose. b. Put a piece of cloth/cushioning material on the base frame to avoid any damage. c. After removal of fuel line, make sure that it is completely vertical, see figures below. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 7 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 6, Mask the cable tie using masking/insulation tape Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 8 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 7, Removal of Fuel Outlet Hose Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 9 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 8, Make sure green quick link lock is on upward direction before pulling the hose Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 10 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 9, After disconnecting fuel line, ensure that it is completely vertical 7. Pull/disconnect inlet hose (PN A064P026) from IPM module (PN A057B750) by hand Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 11 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 10, Disconnect hose on IPM coming from the fuel filter Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 12 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 11, Pull the hose in the direction shown 8. Pull/disconnect inlet hose (PN A064P026) from fuel filter (PN A062A970) by hand (hold filter in one hand and pull hose with other hand). Use new fuel hose and install two 13.3 OET clamps. Warning: Firmly hold the fuel filter while removing the inlet hose, be careful not to pull on the opposite side hose. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 13 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 12, Pull/disconnect inlet hose Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 14 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 13, Use new fuel hose from the kit and install two 13.3 OET clamps 9. Connect one end of the new hose to fuel filter, clamp, and then connect the other end to IPM, and clamp. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 15 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 14, Push new hose in the direction shown and make sure hose is fully onto the inlet connection Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 16 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 15, Install new clamps on hose (at filter end and at IPM end) before connecting hose to IPM. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 17 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 16, Make sure second clamp is placed before connecting hose to IPM 10. Crimp the 13.3 OET clamp in the IPM joint using hand crimping tool. Special tool with length less than 180 mm, special tool length will result in not having to remove the enclosure Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 18 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 17, OET Clamp Tool with Shortened Length 11. Clamp position should be close to IPM (less than 3 mm). Visually check that the clamp does not seat on barb. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 19 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 18, Correct placement of New OET clamp Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 20 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 19, View of Correct Placement of New OET Clamp 12. Crimp the 13.3 OET clamp in the fuel filter joint using hand crimping tool. Make sure not to cut the hose while crimping Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 21 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 20, Example of Tool Being Used Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 22 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 21, Shortened Tool Position for Proper Clamping Position 13. Plug the fuel outlet hose (A057B741) using the quick connect feature and lock the connector Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 23 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 22, Push the hose in the direction shown Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 24 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 23, Push the green part in the direction shown to lock 14. Visually make sure all hoses are connected (no unconnected hose). 15. Quality check: Pull on the new hose (pull test) at both joints to make sure hose is clamped properly at filter and IPM side. 16. Reinstall air filter and air cleaner housing. Make sure tabs are locked properly Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 25 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 24, Air Filter Locking Tabs 17. Reinstall the door enclosure (PN A062F793) and close it by twisting the knob. Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 26 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Figure 25, Generator Set After Fix Table 1, Service Parts Part Description Part Number Kit, Hose with Clamps A073U493 Service parts are available. See Table 1 for part numbers. Production Status Implemented for production. See Table 2. Refer to document TSB230067-A Safety Campaign #5215 HGLAA Fuel Hose Leak Affected Generator Set Serial Numbers for a table of affected units. Table 2, Production Information Product GSN First Build Date Plant HGLAA B230206933 Fridley Generator Set/Engine build date can be found on the Generator Set/engine dataplate. 1 1 Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 27 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023 Document History Last Modified: 17-Apr-2023 Date Details 2023-3-24 Module Created Safety Campaign #5215 – HGLAA Fuel Hose Leak Page 28 of 28 https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2023/tsb230067.html 4/19/2023

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*** IMPORTANT SAFETY RECALL *** Cummins Safety Campaign #PG5215 NHTSA Recall No. 23E-030 April 12, 2023 Dear Cummins Customer: We are writing to inform you that Cummins Inc. has determined that a safety-related defect exists in certain Onan QG 2800i and Onan QG 2800i EVAP generators that were manufactured between March 3, 2020 and February 10, 2023. Cummins has initiated a recall of the subject generators. Our records indicate that some of these generators were shipped to you. (See attached List of Generator Set Serial Numbers) A copy of Cummins’ initial Part 573 Defect Notification report is enclosed. This notification was submitted to the National Highway Traffic Safety Administration (NHTSA) on April 4, 2023. As described in the Defect Notification, the fuel hose between the inline fuel filter and the Injection Pump Module (IPM) may have inadequate clamp force, possibly resulting in a gasoline leak. A gasoline leak in the presence of an ignition source may increase the risk of fire. For generators that have left your control, we encourage you to make a safety defect determination in accordance with 49 USC 30118 and, as appropriate, to submit a Defect Notification to NHTSA in accordance with 49 CFR Part 573. Cummins will conduct the recall, including notifying owners pursuant to 49 CFR Part 577, performing the remedy, and submitting quarterly status reports to NHTSA. Cummins is requesting that you provide the associated vehicle model identification, VINs and owner contact information to facilitate owner notification. Please work with your Cummins account team leader to ensure that the requested information is provided to Cummins as soon as possible. As an original equipment manufacturer, Cummins has no obligation to file a defect notification to Transport Canada for this recall. If you report the defect to Transport Canada, we ask that you please provide the Transport Canada recall number for your vehicle recall to Cummins, as Cummins cannot mail owner letters compliant with Transport Canada regulations without this recall number. Cummins will provide information to you after mailings are completed so that you can submit the required quarterly reports to Transport Canada. For generators that are still in your inventory, please work with your account team leader to arrange for inspection and repairs. Please note that Federal law prohibits delivery of these generators, or vehicles equipped with these generators, under a sale or lease until this condition has been remedied. Please confirm receipt of this communication. Additionally, please advise whether you want Cummins to send owner notifications or whether you prefer that your company do so. Cummins apologizes for this inconvenience, but we are initiating this action in the interest of our customers’ safety and satisfaction with our products. Thank you for your assistance. Sincerely, Enclosures: 1. Cummins Part 573 Defect Notification 2. List of Generator Set Serial Numbers

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23E-030 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Cummins, Inc. Submission Date : APR 14, 2023 NHTSA Recall No. : 23E-030 Manufacturer Recall No. : PG5215 Manufacturer Information : Manufacturer Name : Cummins, Inc. Address : Box 3005 Mail Code COB118 Columbus IN 47202-3005 Company phone : 812-377-5000 Population : Number of potentially involved : 15,622 Estimated percentage with defect : 75 % Equipment Information : Brand / Trade 1 : Cummins Power Generation Model : Onan QG 2800i Part No. : 2.8HGLAA-8302A Size : NR Function : Generator Sets Descriptive Information : Cummins is recalling the entire population of the subject model generator sets built until corrective action was implemented on 2/10/2023. These generators are intended for use in recreational vehicles and were sold to recreational vehicle OEMs for installation as original equipment and directly to owners as aftermarket equipment. Approximately 14,799 of Onan QG 2800i are included in the recall population. Note that the “Number Potentially Involved” provided below includes approximately 4000 units that do not contain the defect, but Cummins is recalling the entire population because it is unable to identify them by generator set serial number Production Dates : MAR 03, 2020 – JAN 31, 2023 Part 573 Safety Recall Report 23E-030 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Brand / Trade 2 : Cummins Power Generation Model : Onan QG 2800i EVAP Part No. : 2.8HGLAA-8303A Size : NR Function : Generator Sets Descriptive Information : Cummins is recalling the entire population of the subject model generator sets built until corrective action was implemented on 2/10/2023. These generators are intended for use in recreational vehicles and were sold to recreational vehicle OEMs for installation as original equipment and directly to owners as aftermarket equipment. Approximately 823 of model Onan QG 2800i EVAP are included in the recall population. Note that the “Number Potentially Involved” provided below includes approximately 4000 units that do not contain the defect, but Cummins is recalling the entire population because it is unable to identify them by generator set serial number Production Dates : MAR 05, 2020 – JAN 03, 2023 Description of Defect : Description of the Defect : This fuel hose between the inline fuel filter and the Injection Pump Module (IPM) may have inadequate clamp force, possibly resulting in a gasoline leak. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A gasoline leak in the presence of an ignition source may increase the risk of fire. Description of the Cause : The cause of the issue is an inadequate specification of the fuel hose. . Identification of Any Warning that can Occur : Bystanders may see or smell gasoline. Involved Components : Part 573 Safety Recall Report 23E-030 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name : Hose, Fuel Component Description : Gasoline fuel hose between the IPM and fuel filter. Component Part Number : A064P026 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : 1/18/2023 – 1/22/2023 – While attending the Florida RV SuperShow, Cummins personnel received reports of fuel leaks on the subject generators. During this same time, Cummins received a report of fuel leaks directly from Pleasure-Way. 1/18/2023 – 2/10/2023 – Cummins assembled a team to investigate the issue. Cummins initiated engineering pull tests on the subject joint. 2/10/2023 – 2/21/2023 – Cummins initiated a stop-ship on the subject generators from the manufacturing plant and the distribution center as it continued the investigation into the cause of the issue. Cummins determined that production samples had fuel hose clamping force less than the specification. The engineering team investigated variables that may have caused the issue and determined that inadequate specification of the hose was the cause. Cummins validated and released a new part number for a remedy hose to meet the requirements. Cummins conducted a review of its claims records and identified 12 warranty claims of a fuel leak and/or fuel hoses disconnecting from the IPM and 16 reports of leaks from OEMs and Cummins dealers/ distributors. Cummins isolated and inspected and, where necessary, repaired, inventory of the subject generators at the manufacturing plant, the distribution center and some OEMs. 2/22/2023 – 3/9/2023– Cummins conducted a Product Safety Hazard Analysis to evaluate the potential safety risk on fielded units. 3/10/2023-3/28/2023 – Cummins escalated the issue through its Product Safety Defect Determination Process. 3/28/2023 – Based upon the results of the investigation, the Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition. To date, there have been no reports of fires or injuries related to this issue. Part 573 Safety Recall Report 23E-030 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : The remedy is to inspect and, if the unit has the defect, to replace the subject fuel hose and associated clamps. 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 remedy fuel hose has a unique part number A073T925. Identify How/When Recall Condition was Corrected in Production : Production began with the remedy fuel hose on 02/21/2023. Recall Schedule : Description of Recall Schedule : For original equipment, Cummins expects to notify its OEM customers on or before 4/14/2023. Pending consultation and agreement with the OEMs, Cummins will conduct the recall, including sending owner notifications. The timing of owner notification will be determined in consultation with the OEMs. For aftermarket/replacement equipment, Cummins expects to commence notification to dealers/distributors and known owners in accordance with the “Planned Dealer Notification” and “Planned Owner Notification” schedule. Planned Dealer Notification Date : APR 28, 2023 – APR 28, 2023 Planned Owner Notification Date : JUN 02, 2023 – JUN 02, 2023 Purchaser Information : The following manufacturers purchased this defective/noncompliant equipment for possible use or installation in new motor vehicles or new items of motor vehicle equipment: Name : Chinook Motor Coach, LLC Address : 1482 North Eel River Cemetery Road Peru IN 46970 Country : US Company Phone : 5419128580 Part 573 Safety Recall Report 23E-030 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Name : Forest River Inc. Address : 900 County Road One Elkhart IN 46514 Country : US Company Phone : 5748256242 Name : Jayco Inc. Address : 903 South Main Street Middlebury IN 46540 Country : US Company Phone : 5742761016 Name : Phoenix USA Inc. Address : 3504 Cooper Drive Elkhart IN 46514 Country : US Company Phone : 5743502680 Name : Pleasure-Way Industries Ltd. Address : 302 Portage Ave Saskatoon 00 SK S7J 4C6 Country : CA Company Phone : 3069346563 Name : Thor Motorcoach Address : 3322 Middlebury Street Elkhart IN 46516 Country : US Company Phone : 5743894545 Name : Winnebago Industries Address : 13200 Pioneer Trail Eden Prarie MN 55347 Country : US Company Phone : 9528369682 Name : Midway Specialty Vehicles Inc. Address : 2940 Dexter Dr. Elkhart IN 46514 Country : US Company Phone : 5742642530 Part 573 Safety Recall Report 23E-030 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Name : Explorer Van Company Address : 2749 N. Fox Farm Road Warsaw IN 46580 Country : US Company Phone : 5742677666 Name : Sportsmobile Inc. Address : 250 Court St. Huntington IN 46570 Country : US Company Phone : 5128354409 Name : Prime-Time Specialty Vehicle Inc. Address : 56616 Elk Park Dr. Elkhart IN 46516 Country : US Company Phone : 5743264707 Name : Air-Stream, Inc. Address : 1001 West Pike St. Jackson Center OH 45334 Country : US Company Phone : 9375966111 Name : Adaptive Mobility Systems, Inc. Address : 2072 N Bibb Drive Tucker GA 30084 Country : US Company Phone : 6787240766 Name : Crew Chief Conversions Address : 3-2684 Drew Rd. Mississauga 00 L4T 3C4 Country : CA Company Phone : 9056719700 Name : Easy Life Motors Address : 105 US-80 Pearl MS 39208 Country : US Company Phone : 3379624766 Part 573 Safety Recall Report 23E-030 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 Name : Farber Specialty Vehicles Address : 7052 Americana Pkwy Reynoldsburg OH 43068 Country : US Company Phone : 6144009697 Name : G&W Diesel Conway Address : NR Memphis TN 38106 Country : US Company Phone : 5013273200 Name : Industrial Video Address : 105 McDougall Ct Mauldin SC 29662 Country : US Company Phone : 8647065315 Name : Intercontinental Truck Address : 5285 192 Frontage Rd. Surrey 00 V3S 8E5 Country : CA Company Phone : 6045762995 Name : Man Cave RV Address : 2875 W Houston Ave Apache Junction AZ 85120 Country : US Company Phone : 4803999901 Name : MaxVan LLC Address : 2072 N Bibb Drive Tucker GA 30084 Country : US Company Phone : 6787240766 Name : ProVan RV Industries LLC Address : 4837 Edmund Hwy West Columbia SC 29170 Country : US Company Phone : 8039553001 Part 573 Safety Recall Report 23E-030 Page 8 The information contained in this report was submitted pursuant to 49 CFR §573 Name : Quality Vans and Specialty Vehicles Address : 2113 W 7th St. Tempe AZ 85821 Country : US Company Phone : 4804647007 Name : Transwest Trucks Address : 13525 Co Rd 8 Fort Lupton CO 80621 Country : US Company Phone : 7208369682 Name : Creative Mobile Interiors Address : 6237 Seeds Rd. Grove City OH 43123 Country : US Company Phone : 6145394600 Name : SCI Technologies Address : 3736 Getwell Cove Memphis TN 38118 Country : US Company Phone : 9014102151 * NR – Not Reported

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