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Service campaign 14-037

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 campaign
NHTSA id11036288
Published by NHTSA2026-08-20
Manufacturer's number14-037
Manufacturer's date2026-08-11
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

An improved transmission bracket is now available for replacement on certain chassis equipped with a PACCAR TX-12 transmission, featuring a more durable design for enhanced long-term performance.

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 T2802024, 2025, 2026, 2027
KENWORTH T3802024, 2025, 2026, 2027
KENWORTH T4802024, 2025, 2026, 2027
KENWORTH T6802024, 2025, 2026, 2027
KENWORTH T8802024, 2025, 2026, 2027
PETERBILT 5372024, 2025, 2026, 2027
PETERBILT 5482024, 2025, 2026, 2027
PETERBILT 5672024, 2025, 2026, 2027
PETERBILT 5792024, 2025, 2026, 2027

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