I am a maintenance mechanic for a large trucking firm. On 4 oct 2011, I checked the torque on the 5th wheel bolts of unit 11054 because I could see that the 5th wheel was sliding on the frame. The bolts were defective - yielding prior to reaching the recommended torque of 236 ft.lb. I adjusted the torque wrench to 200 ft.lb., its lowest setting, and could not get any of the bolts to hold. I replaced all ten bolts with 5/8" grade 8 hardware instead of the factory 16mm 10.9 metric because that was all we had available. There was no interference between the 5th wheel bolts and the huck rivets on the frame rail. The bolts were weak.
The worst 2011 Mack CXU612 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Body1
- Suspension1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Body1
- Suspension1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2011 Mack CXU612 70
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- CBR -Telematics Gateway (TGW) Connect Ability Issues
- Cbr
- Cbr
- Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family...
- Air Restriction Indicator
- Barksdale Leveling Valve, Leak Test
- Service Literature Published and Released in May, 2023
- CBR: eWarranty To UCHP Labor Code ( SCC Code ) Crossover, Conversion Information For Use With Campaigns (...
- CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
- TSB-Charge Air Cooler t-clamp install.
What 2011 Mack CXU612 owners say
Most recent owner complaints, unedited.
Compare the 2011 Mack CXU612
Other model years
20102011
Questions about the 2011 Mack CXU612
Is the 2011 Mack CXU612 reliable?
Owners have filed 1 complaint about the 2011 Mack CXU612, fewer than a typical CXU612 model year.
What is the most common problem with the 2011 Mack CXU612?
Body and structure, with 1 complaint. Next is suspension (1).
How many recalls does the 2011 Mack CXU612 have?
No recalls on record.
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