23KWG – Driveshaft May Break – 2023 Kenworth K270, K370

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-616 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : PACCAR Incorporated Submission Date : SEP 05, 2023 NHTSA Recall No. : 23V-616 Manufacturer Recall No. : 23KWG and 23PBG Manufacturer Information : Manufacturer Name : PACCAR Incorporated Address : 777 106TH AVENUE NORTHEAST BELLEVUE WA 98004 Company phone : 940 591 4220 Population : Number of potentially involved : 21 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2023-2023 Kenworth K270 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Reference Dana recall 23E052. Affected vehicles were identified based on the suspect driveline serial number list provided by Dana. Production Dates : OCT 04, 2022 – OCT 05, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Kenworth K370 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Reference Dana recall 23E052. Affected vehicles were identified based on the suspect driveline serial number list provided by Dana. Production Dates : AUG 29, 2022 – AUG 29, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2023-2023 Peterbilt Model 220 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Reference Dana recall 23E052. Affected vehicles were identified based on the suspect driveline serial number list provided by Dana. Production Dates : AUG 29, 2022 – OCT 07, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-616 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : Reference Dana recall 23E052. The driveline tube seam weld may separate or tear under certain stress loads, resulting in driveline separation and sudden loss of drive power. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A driveline that separates and results in unexpected loss of motive power may increase the risk of a crash. Description of the Cause : Due to an error in the supplier’s production processes, non-conforming material was used to manufacture the specified drivelines. Identification of Any Warning that can Occur : None. Involved Components : Component Name 1 : Tube Component Description : Rolled Metal Tube Component Part Number : Dana SPL100 driveline Supplier Identification : Component Manufacturer Name : Dana Incorporated Address : 6515 Maumee Western Maumee Ohio 43537 Country : United States Chronology : 07-21-23: Safety and compliance notified. Investigation opened. Reference Dana recall 23E-052. 07-28-23: Received list of affected driveline serial numbers from Dana, including relation to chassis ID number. 07-28-23: The suspect population contains only trucks built in Kenmex. All other plants for Paccar receive the driveline from a different location of Dana in Lima, Ohio, which do not contain the non-conforming material. 08-14-23: Dana sent the 8D document containing the root cause, and corrective action. Part 573 Safety Recall Report 23V-616 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 08-28-23: Investigation summarized for Safety Committee review. 08-29-23: Safety committee meeting held. Safety Committee concurs with Dana that a safety related defect exists and that the affected population shall be recalled. As of 8-29-23 PACCAR received zero warranty claims and zero field reports that may be related to this issue and there were no reports of deaths or injuries received. Description of Remedy : Description of Remedy Program : Affected vehicle owners will be notified and dealers will replace suspect drivelines free of charge. Owners who incurred costs to obtain a remedy for the problem addressed by the recall in advance of receiving notification may seek reimbursement through the process outlined in the general reimbursement plan on file. How Remedy Component Differs from Recalled Component : The issue is isolated to two manufacturing lots in which the nonconforming components were incorporated, August 5-10, 2022, and September 8-14, 2022. Replacement driveshafts will not be manufactured with the non-conforming components. Identify How/When Recall Condition was Corrected in Production : The recall condition was caused by a supplier’s use of non-conforming tubing material at the start of production runs, whereas protocol bars use of that material. The supplier reports that it has enhanced its process for identification and control of non-conforming material to prevent a recurrence of this issue. Recall Schedule : Description of Recall Schedule : Notifications will be sent within 60 days. Planned Dealer Notification Date : NOV 04, 2023 – NOV 04, 2023 Planned Owner Notification Date : NOV 04, 2023 – NOV 04, 2023 * NR – Not Reported

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9/22/23, 10:46 AM Aftersales Service – Federal Recall Bulletin Safety Recall Interim Notification 23KWG: K270/K370 Dana Driveline Welds Number 23KWG/ 23V616 / 2023-496 Supplier Dana Description Safety Recall: K270/K370 Dana Driveline Welds Date 9/22/2023 What’s New Safety Recall: Interim Notification t1 Edit c__O Clone On certain Kenworth K270/K370 chassis equipped with Dana SPL 100 drivelines, the driveline tube seam weld may separate or tear under certain stress loads, resulting in driveline separation and sudden loss of drive power. A sudden loss of drive power may increase the risk of a crash. Situation 3 (3 U.S. and O Canada) Model Year 2023 Kenworth K270/K370 chassis built from 8/29/22 through 10/05/22 equipped with Dana SPL 100 drivelines https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5IdC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSlslmxpc3… 1/2 9/22/23, 10:46 AM Aftersales Service – Federal Recall Bulletin with suspect driveline serial numbers. Resolution Safety Recall: Interim Notification This bulletin will be updated when repair parts and procedure are available. Federal Law It is a violation of Federal law for a dealer to sell or lease new vehicles covered by this recall until the defect or noncompliance has been corrected. Links Chassis List Authored by: BDS https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5IdC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSlslmxpc3… 2/2

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