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April 1, 2026 Emissions

EPA17-24 mx

Kenworth technical service bulletin E326 for 2017-2026 Kenworth T680, 2017-2026 Peterbilt 579 and 2007, 2017-2025 Peterbilt 389 and others.

Bulletin number
E326 (E326)
Component
Electrical system
Summary
EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.

Owners of these vehicles have filed 18 complaints in the electrical category.

Vehicles covered

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