22KWF – Fuel Tank Leak – 2022-2023 Kenworth T680

August 4, 2022 NHTSA CAMPAIGN NUMBER: 22V582000

Fuel Tank Leak

Excessive wear of the fuel tank may allow fuel to spill on the roadway, which can increase the risk of a crash or injury.


NHTSA Campaign Number: 22V582

Manufacturer PACCAR Incorporated


Potential Number of Units Affected 586



PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T680 tractor trailers. The mud flap may contact the fuel tank while the vehicle is in motion, creating wear on the fuel tank over time.



Dealers will inspect the fuel tank and install an anti-sail device to prevent the mud flap from contacting the fuel tank, free of charge. Owner notification letters are expected to be mailed October 03, 2022. Owners may contact Kenworth’s customer service at 1-425-828-5888. Paccar’s number for this recall is 22KWF.



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.


2023 Kenworth T680
2023 Kenworth T680


Chronology :

04-21-22: Report received from the field of a truck which experienced fuel tank leaks. Engineering reviewed issue with Safety & Compliance.

05-04-22: Engineering reviews concepts to restrict mud flap contact, and plans to select one to install on a Kenworth owned truck to evaluate effectiveness.

05-13-22: Review held with engineering to discuss the status. A prototype anti-sail device was installed on a Kenworth owned vehicle. This truck did not have an under cab fuel tank, but evidence of the mud flap contacting the aftertreatment box assembly was observed. The prototype restricted the movement of the mud flap to mitigate contact.

06-01-22: Kenworth begins installing anti-sail device on production vehicles.

06-10-22: Additional reports from the field of mud flap contacting fuel tank and creating wear. Vehicles reported lower mileage and time in service than the initial vehicle identified with the fuel leak. All other potentially affected vehicles have lower mileage than the initial vehicle identified with a fuel leak.

07-25-22: Reviewed summary of investigation with engineering and firmed affected population.

07-28-22: Safety committee meeting held. The committee concurs that a safety related defect exists and the affected population shall be recalled.


2 Affected Products


KENWORTH T680 2022-2023


2 Associated Documents

Defect Notice 573 Report

RCLRPT-22V582-2156.PDF 214.126KB



Recall Acknowledgement

RCAK-22V582-8117.pdf 646.091KB



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