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October 16, 2026 Service bulletin

Additional chassis have been added to the population

Kenworth technical service bulletin E340 for 2026-2027 Kenworth T680, 2026-2027 Peterbilt 579 and 2026-2027 Kenworth T880 and others.

Bulletin number
E340
Component
Engine
Summary
Additional chassis have been added to the population

Vehicles covered

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