NHTSA recall 07V090000
Service brakes, air
Kenworth C500 and 3 more
Reported Mar 9, 200765 vehicles affectedPACCAR INCORPORATEDMaker’s number 07KW2Built May 23, 2005 – Jan 14, 2007
The defect
Certain trucks fail to comply with the brake timing regulatory requirements of federal motor vehicle safety standard no. 121, "air brake systems." the brake valve was moved to the opposite rail, increasing the length of the air line, which in turn increased the wheelbase requiring a dual relay valve system. the vehicles were manufactured with a single valve system.
The risk
If stopping distance was limited, a vehicle crash could result.
The remedy
Dealers will convert the single relay valve to a dual relay valve system free of charge. the recall began on may 21, 2007. owners may contact kenworth at 425-828-5440.