23PBF – Fuel Filter Hoses May Disconnect or Leak Fuel – 2023-2024 Peterbilt 536, 537, & 548

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September 5, 2023 NHTSA CAMPAIGN NUMBER: 23V617000

Fuel Filter Hoses May Disconnect or Leak Fuel

A disconnected hose will result in an engine stall, increasing the risk of a crash. Also, a fuel leak in the presence of an ignition source increases the risk of a fire.

 

NHTSA Campaign Number: 23V617

Manufacturer PACCAR Incorporated

Components FUEL SYSTEM, DIESEL

Potential Number of Units Affected 871

 

Summary

PACCAR Incorporated (PACCAR) is recalling certain 2023-2024 Kenworth T280, T380, T480, Peterbilt 536, 537, and 548 trucks. The remote Stage 2 fuel filter hoses may have been damaged during production, allowing the hoses to leak or disconnect.

 

Remedy

Dealers will replace both hoses, free of charge. Owner notification letters are expected to be mailed November 4, 2023. Owners may contact Kenworth’s customer service at 1-425-828-5888 and Peterbilt’s customer service at 1-940-591-4220. PACCAR’s numbers for this recall are 23KWF and 23PBF.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 


Reference Cummins Recall

Cummins has alerted Peterbilt to a defect which relates to motor vehicle safety in certain model year 2023 and 2024 536, 537, and 548 chassis. PX-9remote fuel filter hoses could become disconnected, causing an engine stall, and increasing the risk of a crash. Fuel leaks near an ignition source may increase the risk of fi re. Refer to Cummins Recall C2717 for repair information.

 

Introduction

Cummins has alerted Peterbilt to a defect which relates to motor vehicle safety in certain model year 2023 and 2024 536, 537, and 548 vehicles.

A fuel hose that becomes disconnected will result in an engine stall, increasing the risk of a crash. A fuel leak in the presence of an ignition source may increase the risk of a fire. Reference Cummins Recall C2717.

 


Chronology :

07-26-23: Cummins notified Safety and Compliance that a NHTSA recall (ID 23E-055) was filed for a remote fuel filter hose damaged in some L9/PX-9 engines built from 11/22/2022 to 2/28/2023. Investigation opened.

Cummins provided the list of engine serial number (ESN) affected to associate with their corresponding VIN and customer information. A total of 1,005 affected vehicles.

08-01-23: PACCAR found 1,804 trucks built in the same time frame that were not included in the list provided by Cummins and asked Cummins to clarify whether any should be included in the suspect population.

08-09-23: Cummins reviewed the 1,804 trucks found by PACCAR and found that 398 of those engines were built prior to switching to the suspect fuel hose on 11/23/2022, 566 were built after switching to the improved hose and 840 were built with the prior hydraulic hose (not suspect hose) under deviation. None of these trucks should be added to the suspect population.

08-15-23: Eight domestic trucks from Mexico were identified in the affected population. Kenworth Mexico was notified to coordinate the corresponding repair with Cummins.

08-25-23: Investigation summarized for Safety Committee review and affected population firmed.

08-29-23: Safety committee meeting held. Safety Committee concurs with Cummins that a safety related defect exists and that the affected population shall be recalled.

As of 8-29-23, PACCAR received 85 warranty claims and zero field reports that may be related between January 2023 and August 2023. Zero reports of deaths or injuries have been received.

 


23E055 – Fuel Filter Hoses May Disconnect or Leak FuelCummins L9 Diesel Engines

 

23E055 – Fuel Filter Hoses May Disconnect or Leak Fuel – Cummins L9 Diesel Engines

 


12 Affected Products

Vehicles

MAKE MODEL YEAR
KENWORTH T280 2023-2024
KENWORTH T380 2023-2024
KENWORTH T480 2023-2024
PETERBILT 536 2023-2024
PETERBILT 537 2023-2024
PETERBILT 548 2023-2024

 


5 Associated Documents

Recall Acknowledgement

RCAK-23V617-6130.pdf 646.018KB

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Defect Notice 573 Report

RCLRPT-23V617-1859.PDF 216.466KB

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PACCAR – 23PBF Bulletin – September 2023

RCMN-23V617-7839.pdf 121.948KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-23V617-9645.pdf 393.541KB

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PACCAR – 23KWF Bulletin – September 2023

RCMN-23V617-9133.pdf 295.531KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V617&docType=RCL

 


 

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