NHTSA Campaign 07V497000

TRAILER HITCHES:FIFTH WHEEL ASSEMBLY

Issued by MACK TRUCKS, INC · Reported Oct 23, 2007 · 950 vehicles affected

What's wrong

ON CERTAIN TRUCKS EQUIPPED WITH A SAF HOLLAND SIMPLEX FIFTH WHEEL, THE LEVER ARM PIVOT BOLT MAY HAVE BEEN OVER TIGHTENED. AN OVER TIGHTENED PIVOT BOLT CAN DISTORT THE PIVOT BOLT SPACER SLEEVE, WHICH MAY PREVENT THE FIFTH WHEEL LATCH JAW FROM CLOSING AND LATCHING SECURELY AROUND THE TRAILER KING PIN.

Consequence

THERE IS A POSSIBILITY THAT THE PIVOT BOLT CAN BECOME LOOSE WITHOUT THE DRIVER'S KNOWLEDGE. WHEN THIS OCCURS, THE DRIVER COULD DRIVE AWAY AND THE TRAILER COULD BECOME DISENGAGED, INCREASING THE RISK OF A CRASH.

Remedy

DEALERS WILL REPLACE THE PIVOT BOLT AND SLEEVE WITH A HEX HEAD SHOULDER BOLT AND WASHER FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 28, 2008. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.

Vehicles affected by this recall

Make Model Year Units
MACK CHN 2006 950
MACK CHN 2007 950
MACK CHN 2008 950
MACK CL 2006 950
MACK CL 2007 950
MACK CL 2008 950
MACK CT 2006 950
MACK CT 2007 950
MACK CT 2008 950
MACK CTP 2006 950
MACK CTP 2007 950
MACK CTP 2008 950
MACK CV 2006 950
MACK CV 2007 950
MACK CV 2008 950
MACK CXN 2006 950
MACK CXN 2007 950
MACK CXN 2008 950
MACK CXP 2006 950
MACK CXP 2007 950
MACK CXP 2008 950
MACK CXU 2006 950
MACK CXU 2007 950
MACK CXU 2008 950

Source: NHTSA Campaign 07V497000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.