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May 1, 2026 Service bulletin

Procedures have been updated to include additional truck models in the service intervals table.

Kenworth technical service bulletin 41-024 for 2020-2026 Kenworth T680, 2020-2026 Peterbilt 579 and 2020-2026 Kenworth T880 and others.

Bulletin number
41-024
Component
Engine
Summary
Procedures have been updated to include additional truck models in the service intervals table.

Owners of these vehicles have filed 3 complaints in the engine category.

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