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October 19, 2023 Service bulletin

Safety Recall Interim Notification Certain T280/T380/T480 chassis built with 2.1m Medium Duty End of Frame...

Kenworth technical service bulletin 23KWJ for 2020-2024 Kenworth T380, 2021-2024 Kenworth T280 and 2020-2024 Kenworth T480.

Bulletin number
23KWJ
Component
Service brakes, air
Summary
Safety Recall Interim Notification Certain T280/T380/T480 chassis built with 2.1m Medium Duty End of Frame Trailer Connections may not meet the standard trailer brake release timing requirements by 0.5 seconds. A delay in the trailer brake release can create instability to the trailer and increase the risk of a crash. Parts and repair procedures are not yet available. This bulletin will be updated when a repair path is determined.

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