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Service bulletin 14-034

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11032290
Published by NHTSA2026-05-06
Manufacturer's number14-034
Manufacturer's date2026-04-16
Campaign id or software version14-034
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Vehicles listed
KENWORTH T1702017 to 2023
KENWORTH T2702017 to 2023
KENWORTH T2802021
KENWORTH T2802022, 2023, 2024, 2025, 2026
KENWORTH T3702017 to 2023
KENWORTH T3802018 to 2021
KENWORTH T3802022, 2023, 2024, 2025, 2026
KENWORTH T4702017 to 2023
KENWORTH T4802020 to 2021
KENWORTH T4802022, 2023, 2024, 2025, 2026
KENWORTH T6802017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
KENWORTH T8002017 to 2025
KENWORTH T800B2021 to 2025
KENWORTH T8802017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
KENWORTH W9002017 to 2025
KENWORTH W900B2021 to 2025
KENWORTH W9902018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
PETERBILT 5362020 to 2021
PETERBILT 5362022, 2023, 2024, 2025, 2026
PETERBILT 5372020 to 2022
PETERBILT 5372023, 2024, 2025, 2026
PETERBILT 5482020 to 2023
PETERBILT 5482024, 2025, 2026
PETERBILT 5672017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
PETERBILT 5792017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
PETERBILT 5892024, 2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.