Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned...
Mack technical service bulletin CBR-997 202411 for 2017-2025 Mack Anthem (An), 2019-2025 Mack Granite (GR) and 2014-2018 Mack Cxu and others.
- Bulletin number
- CBR-997 202411
- Component
- Engine
- Summary
- Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping. These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.
Owners of these vehicles have filed 2 complaints in the engine category.
Vehicles covered
- Mack Anthem (An) 2017-2025 20182019202020212022202320242025
- Mack Granite (GR) 2019-2025 2019202020212022202320242025
- Mack Cxu 2014-2018 20142015201620172018
- Mack Granite (Gu) 2014-2019 201420152016201720182019
- Mack MD 2020-2025 202020212022202320242025
- Mack Mru 2014-2018 20142015201620172018
- Mack LR 2015-2025 20182019202020212022202320242025
- Mack Chu 2014-2018 20142015201620172018
- Mack Leu 2014-2017 2014201520162017
- Mack TD 2014-2019 201420152016201720182019
- Mack Terrapro (Te) 2017-2025 20182019202020212022202320242025
- Mack Pinnacle (Pi/PN) 2018-2024 2018201920202021202220232024
- Mack Pioneer PR (4) 2025 2025
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