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August 4, 2025 Service campaign

"Campaign New and improved software is now required for chassis equipped with an Engine Model Year 2016...

Kenworth technical service bulletin E324 for 2018 Kenworth T680, 2018 Peterbilt 579 and 2018 Peterbilt 567 and others.

Bulletin number
E324 (E324)
Component
Electrical system
Summary
"Campaign New and improved software is now required for chassis equipped with an Engine Model Year 2016 PACCAR MX-13 engine to maintain DEF sensor performance and ensure compliance with emissions standards.

Owners of these vehicles have filed 5 complaints in the electrical category.

Vehicles covered

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