2026 Mack Granite (GR) technical service bulletins
18 technical service bulletins and manufacturer communications cover the 2026 Mack Granite (GR).
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Parker engine-mounted hydraulic pump service bulletin.
- Mack Trucks Equipped With A Cummins Engine
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- The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86...
- The crossmember may come in contact with certain driveshaft U-joint configurations.
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- Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
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- Cbr - 13
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- Mack Trucks has identified that certain truck models may have been assembled with incorrect center bearing...
- The vehicle’s steering shaft support bracket may have been assembled with incorrect hardware.
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