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Vehicle recall 11V209000 · March 31, 2011

Mack CHU, CXU and 2 more models

There may be an interference with the bolts used to secure the fifth wheel to the frame that can prevent the bolts from being torqued to specification.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
Mack trucks is recalling certain model year 2008-2011 chu and cxu heavy trucks manufactured from January 2008 through July 2010. There may be an interference with the bolts used to secure the fifth wheel to the frame that can prevent the bolts from being torqued to specification.
Consequence
The bolts may fail and could result in the fifth wheel coming loose causing the trailer to separate from the tractor increasing the risk of a crash.
Remedy
Dealers will inspect and replace the bolts as required free of charge. The safety recall began on may 30, 2011. Owners may contact mack trucks at 1-800-866-1177.
Notes
Mack trucks recall no. SC0351.OWNERS may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to http://www.safercar.gov.

Recall details

NHTSA campaign
11V209000
Reported to NHTSA
March 31, 2011
Filed by
MACK TRUCKS, INC
Manufacturer campaign
SC0351
Owner notification
May 30, 2011
Vehicles potentially affected
808
Initiated by
NHTSA’s Office of Defects Investigation
Components
Trailer hitches › Fifth wheel assembly
Recall 11V209000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Mack been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.