2007 Kenworth T800 problems, complaints & recalls
Most-reported problem areas: Trailer Hitches:fifth Wheel Assembly (1)
Safety recalls (3)
Service Brakes 2013-11-18 · campaign 13V573000 · 18 vehicles
Defect: PACCAR is recalling certain model year 2007-2014 Kenworth T800 and W900 trucks manufactured March 22, 2006, through July 15, 2013 and equipped with Primaax tridem rear suspensions and a pusher and/or tag axle. The affected trucks have brake chambers that take longer to apply or release the brakes than the required time limit. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, "Air Brake Systems."
Risk: Brakes that take longer to apply may lengthen the distance needed to stop the truck, increasing the risk of a crash.
Fix: PACCAR will notify owners, and dealers will modify the air brake system, free of charge. The recall began on January 15, 2014. Owners may contact PACCAR at 1-425-468-7400. Kenworth's recall number is 13KWL.
Fuel System, Other:storage:tank Assembly 2011-02-23 · campaign 11V127000 · 4,664 vehicles
Defect: PACCAR IS RECALLING CERTAIN MODEL YEAR 2008-2012 KENWORTH T2000, T660, T700, T800, AND W900, AS WELL AS MODEL YEAR 2009-2012 PETERBILT 365, 367, 384, 386, 387, 388, 389, AND 587 TRUCKS EQUIPPED WITH PACCAR MX ENGINES. THE OIL MODULE CENTRIFUGAL SPINNER FILTER CAP IN THE PACCAR MX ENGINE MAY BECOME LOOSE, POSSIBLY ALLOWING THE CAP TO COME OFF AND ENGINE OIL TO PARTIALLY DISCHARGE FROM THE OIL MODULE ONTO EXHAUST COMPONENTS.
Risk: THE DISCHARGE OF ENGINE OIL ONTO EXHAUST COMPONENTS WHICH ARE HOT, SUCH AS WHEN THE ENGINE IS UNDER SIGNIFICANT LOAD, MAY CAUSE A FIRE.
Fix: DEALERS WILL RE-TORQUE THE OIL MODULE FILTER CAP AND INSTALL A SECONDARY RETENTION DEVICE ON THE SECONDARY CENTRIFUGAL SPINNER FILTER CAP. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING MARCH 2011. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440 AND PETERBILT AT 1-940-591-4196.
Power Train:axle Assembly 2010-12-13 · campaign 10V634000 · 12,873 vehicles
Defect: PACCAR IS RECALLING CERTAIN MODEL YEAR 2007-2008 KENWORTH AND PETERBILT VEHICLES MANUFACTURED FROM FEBRUARY 2, 2006 THROUGH APRIL 30, 2007. THE BEARING SURFACES OF THE EXTENDED LUBE UNIVERSAL JOINT THAT ATTACHES THE INTER-AXLE DRIVELINE TO THE DRIVE AXLE MAY BECOME PREMATURELY WORN DUE TO BREAKDOWN OF LUBRICATION AND/OR EXCESSIVE HEAT. PREMATURELY WORN BEARING SURFACES MAY RESULT IN THE U-JOINT BECOMING LOOSE AND/OR BINDING. THIS CONDITION MAY RESULT IN UNIVERSAL JOINT FAILURE, ALLOWING THE I
Risk: DETACHMENT OF THE DRIVELINE FROM THE AXLE MAY CAUSE THE VEHICLE TO LOSE POWER AND BECOME DISABLED IN THE ROADWAY. ALSO, THE DRIVELINE COULD DROP FROM THE VEHICLE INTO THE ROADWAY INCREASING THE RISK OF A CRASH.
Fix: PACCAR IS WORKING WITH ITS SUPPLIER TO REMEDY THE VEHICLES FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING FEBRUARY 2011. OWNERS MAY CONTACT KENWORTH AT 425-828-5440 AND PETERBILT AT 940-591-4196.
Service bulletins (34)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-10-13 · 42-070 · Service Bulletin/Repair Instructions
due to supplier constraints, an authorized aftermarket surge tank has been made available.
Engine 2026-09-11 · P001 · Service Bulletin/Repair Instructions
"kenworth: dealers should check the chassis list and sir weekly for vin changes. 2 chassis added to the chassis list. peterbilt: dealers should check the chassis list and sir weekly for vin changes. 10 chassis added to the chassis list."
Visibility:windshield Wiper/Washer 2021-02-10 · 02-160 · Service Bulletin/Repair Instructions
information only â windshield washer pumps have a high no trouble found rate. washer pumps may fail to spray due to a clogged filter.
Electrical System 2020-06-08 · 32-015 · Service Bulletin/Repair Instructions
information only: this bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
Equipment 2020-03-17 · 32-016 · Service Bulletin/Repair Instructions
information only: proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
Vehicle Speed Control 2020-03-03 · 34-085 · Service Bulletin/Repair Instructions
information only â vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
Showing the 6 most recent of 34 bulletins. Search all of them free at nhtsa.gov.
What owners report
2010-02-19 · Trailer Hitches:fifth Wheel Assembly · 170,950 mi“tl*the contact drove a 2007 t800 kenworth truck. when driving approximately 10 mph in reverse and trying to lock the trailer in place, the fifth wheel handle failed to lock which caused the fifth wheel to slide. the mechanic told her that she would need to manually lock the trailer. she also stated that all of the trucks were experiencing the same…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.