Vent tube may detach from engine breather
Defect Summary
Mack trucks, inc. (mack) is recalling certain model year 2011-2016 mack mru and leu trucks manufactured june 25, 2010, to april 30, 2015, and 2015-2016 lr6 trucks manufactured from december 18, 2014 through march 6, 2015. excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.
Safety Consequence
If engine oil comes into contact with a hot surface, there could be an increased risk of a fire.
Corrective Action
Cummins will notify owners on behalf of mack, and cummins service centers will administer the repairs which include securing the ends of the 90-degree elbow and reprogramming the electronic control module (ecm) with software that can adjust the engine output under misfire conditions to limit crankcase pressures. these repairs will be performed free of charge. the recall began on june 12, 2015. Owners may contact mack customer service at 1-800-528-6586 or cummins inc. At 1-800-343-7357. mack's number for this recall is sc0391.
Similar Recalls
Other recalls from Mack Trucks, Inc. or involving Engine And Engine Cooling.
FAQ: Recall 15V275000
Your rights, the repair process, and what each field on this page means.
What is recall 15V275000?
NHTSA recall 15V275000 was issued by Mack Trucks, Inc. on May 11, 2015. It addresses: Vent tube may detach from engine breather. The recall affects approximately 2,124 vehicles, with the defect involving the Engine And Engine Cooling component.
How do I get this recall repaired?
Contact any authorized Mack Trucks, Inc. dealer and reference NHTSA recall ID 15V275000 or the manufacturer campaign number SC0391. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.