KENWORTH 2011 KENWORTH T440 Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2011 KENWORTH T440
Brand
KENWORTH
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2011
PACCAR INCORPORATED is recalling certain 2011 KENWORTH T440 vehicles due to service brakes, air:supply:quick release valve issues. THE SERVICE BRAKE OF A TOWED VEHICLE OR TRAILER MAY HAVE A DELAYED RELEASE, INCREASING THE RISK OF A CRASH..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
PACCAR IS RECALLING CERTAIN MODEL YEAR 2011-2012 KENWORTH T440 TRACTORS MANUFACTURED BETWEEN OCTOBER 18, 2010, AND FEBRUARY 9, 2011 FOR FAILING TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." THE QUICK RELEASE AIR VALVE REQUIRED IN THE FULL TRUCK SERVICE BRAKE AIR LINE GLADHAND CONNECTION MAY NOT HAVE BEEN INSTALLED. THE OMISSION OF THE QUICK RELEASE AIR VALVE MAY ALLOW THE FULL TRUCK SERVICE BRAKE AIR LINE GLADHAND RELEASE TIMING TO EXCEED THE THRESHOLD OF 0.75 SECONDS BY 1/10TH OF A SECOND, THEREBY FAILING TO COMPLY WITH THE WITH THE REQUIREMENTS OF THE SAFETY STANDARD.
Reported concern (NHTSA)
THE SERVICE BRAKE OF A TOWED VEHICLE OR TRAILER MAY HAVE A DELAYED RELEASE, INCREASING THE RISK OF A CRASH.
Recommended Action
Per NHTSA guidance
KENWORTH DEALERS WILL INSTALL THE QUICK RELEASE AIR VALVE IN THE FULL TRUCK SERVICE BRAKE AIR LINE WITH GLADHAND CONNECTION. ALL OF THE VEHICLES HAVE BEEN REPAIRED, THEREFORE, AN OWNER NOTIFICATION LETTER WILL NOT BE ISSUED FOR THIS CAMPAIGN. THE RECALL BEGAN ON JUNE 23, 2011. OWNERS MAY CONTACT PACCAR AT 1-425-468-7400.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026