Engine and engine cooling
Mack technical service bulletin S3904 202403 for 2023-2024 Mack Anthem (An), 2023-2024 Mack Granite (GR) and 2023-2024 Mack Granite (Gu) and others.
- Bulletin number
- S3904 202403
- Component
- Engine and engine cooling
- Summary
- Service Campaign: Mack trucks has determined that certain AN, GR, PI, and TE model trucks built with a MP8 engine could experience a reduced clamping load on the turbocharger mounting hardware causing the hardware to become loose. On affected vehicles follow the instructions below to remove the turbocharger and replace the mounting hardware and mounting gasket with new parts.
Vehicles covered
- Mack Anthem (An) 2023-2024 20232024
- Mack Granite (GR) 2023-2024 20232024
- Mack Granite (Gu) 2023-2024 20232024
- Mack Pinnacle (Pi/PN) 2023-2024 20232024
- Mack Terrapro (Mru) 2023-2024 20232024
- Mack Terrapro (Te) 2023-2024 20232024
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