Problems owners report
Complaints filed with NHTSA about the 2008 Kenworth T600, by the system named in each complaint. One complaint can name several.
- Engine and engine cooling1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Recalls in Canada
12 Transport Canada recalls for the 2008 Kenworth T600.
| 2011130 24 Mar 2011 | Engine On certain trucks equipped with a Caterpillar C15 diesel engine, the Diesel Particulate Filter (DPF) combustion tube may fail. This could result in a vehicle f… |
| 2010441 13 Dec 2010 | Powertrain On certain vehicles, the bearing surfaces of the extended lube universal joint that attaches the inter-axle driveline to the drive axle may become prematurely w… |
| 2009314 29 Oct 2009 | Brakes Certain vehicles may suffer cracking of various brake assembly components (i.e. brake cam tube mounting flanges, brake air chamber bracket, brake air chamber, b… |
| 2009247 19 Aug 2009 | Engine On certain vehicles equipped with a Caterpillar C15 engine, the Variable Valve Actuation (VVA) oil line may wear against the P-clip retaining the oil line. An … |
| 2008358 1 Oct 2008 | Suspension Certain vehicle configuration which includes an AG400 rear suspension, long stroke brake chambers, and wide base tires may develop an increase in lateral and ve… |
| 2008349 24 Sept 2008 | Other On certain trucks, the inadequate stiffness of the Diesel Particulate Filter (DPF) bracket could result in the separation of the DPF from the chassis, which co… |
| 2008001 7 Jan 2008 | Brakes Certain vehicles fail to comply with requirements of CMVSS 121 - Air Brake System. The air lines were incorrectly constructed with only four layers of extruded… |
| 2007209 21 Jun 2007 | Other On certain trucks, the removable front tow hitch assembly may fail. This could result in personal injury or property damage if the assembly failed during the u… |
| 2007145 8 May 2007 | Fuel System On certain trucks, when the ignition key is in the 'ON' position, the pre-heater, located in the fuel filter base, is energized. If this pre-heater is energize… |
| 2007090 20 Mar 2007 | Other On certain trucks, the axle housing may have been manufactured with steel that was out of specification (9.5mm thick instead of 11mm thick), which could result … |
| 2007080 15 Mar 2007 | Electrical On certain trucks, the trailer light wiring harness may have been routed incorrectly during vehicle assembly. This could cause the wires within the harness plu… |
| 2006314 17 Nov 2006 | Steering On certain trucks, the tilt locking mechanism on the steering column may disengage, preventing the steering column from locking into predetermined positions. S… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
PACCAR IS RECALLING CERTAIN MODEL YEAR 2007-2011 KENWORTH C500, T2000, T600, AND T660, AS WELL AS MODEL YEAR 2009-2011 PETERBILT 387 AND 388 TRUCKS EQUIPPED WITH CATERPILLAR C15 ENGINE AND MANUFACTURED FROM MAY 11, 2006, THROUGH SEPTEMBER 17, 2010. DEGRADATION OF A COMBUSTION TUBE WELD CAN CAUSE RADIAL HEAT IMPINGEMENT ON THE BODY WHICH MAY BURN THROUGH CERTAIN BODIES USED ON C15 ENGINES.
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 INTER-AXLE DRIVELINE TO DETACH FROM THE AXLE.
KENWORTH IS RECALLING 3,423 MY 2004-2009 T2000, T800,T600, W900 AND T660 VEHICLES. INCREASED BRAKE EXCITATION IN A CERTAIN VEHICLE CONFIGURATION WHICH INCLUDES BENDIX DRUM BRAKES, WIDE BASE LOW PROFILE SINGLE TIRES, AND AN AG400 OR AG460 REAR SUSPENSION, DUE TO ITS UNIQUE BRAKE CLOCKING AND CAM TUBE LENGTH, CAN CAUSE FATIGUE AND CRACKING TO BRAKE ASSEMBLY COMPONENTS.
PACCAR IS RECALLING 130 MY 2004-2009 T2000, T800, T600, W900 AND T660 KENWORTH TRUCKS BUILT WITH AN AG400 REAR SUSPENSION, LONG STROKE BRAKE CHAMBERS, AND WIDE BASE TIRES (SUPER SINGLES). THESE VEHICLES MAY DEVELOP AN INCREASE IN LATERAL AND VERTICAL AXLE MOVEMENT. THIS MOVEMENT MAY CAUSE PART OR PARTS OF THE BRAKE ASSEMBLY (BRAKE CAM TUBE SUPPORT, BRAKE CHAMBER BRACKET, BRAKE CHAMBER, BRAKE SPIDER) TO DEVELOP FATIGUE CRACKS, POSSIBLY RESULTING IN THE FAILURE OF THE PART OR PARTS WITHIN THE BRAKE ASSEMBLY.
PACCAR IS RECALLING 4,883 MY 2006-2009 KENWORTH T600, T660, T800, W900, T2000 AND MY 2008-2009 PETERBILT 365, 367, 379, 384, 386, 387, 388 AND 389 TRUCKS. INADEQUATE STIFFNESS OF THE DIESEL PARTICULATE FILTER (DPF) BRACKET COULD RESULT IN SEPARATION OF THE DPF FROM THE CHASSIS.
CERTAIN TRUCKS EQUIPPED WITH EATON SYNFLEX ECLIPSE BRAND EXTRUDED NYLON AIR BRAKE HOSE TUBING FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 106, "BRAKE HOSES." THE TUBING WAS MANUFACTURED WITH ONLY FOUR LAYERS OF NYLON MATERIAL, INSTEAD OF THE SPECIFIED FIVE LAYERS.
ON CERTAIN TRUCKS, THE REMOVABLE TOW HITCH ,WHEN USED TO TOW OR LIFT A VEHICLE, CAN FAIL DUE TO DEFECTIVE MATERIAL IN THE TOW HITCH.
ON CERTAIN TRUCKS, IF THE IGNITION SWITCH IS TURNED ON PRIOR TO INITIAL START UP IN THE MANUFACTURING PLANT OR DURING THE FILTER REPLACEMENT IN THE FIELD, A SMALL FLAME WILL IGNITE WHEN THE FUEL IS ADDED TO PRIME THE SYSTEM.
ON CERTAIN TRUCKS, THE AXLE HOUSINGS MAY HAVE BEEN MANUFACTURED WITH STEEL THAT WAS OUT OF SPECIFICATION WHICH COULD RESULT IN A FATIGUE FAILURE OVER TIME.
CERTAIN TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." THE TRAILER LIGHT LINE MAY HAVE BEEN ROUTED USING TOO TIGHT OF A BEND RADIUS. THIS ROUTING METHOD COULD CAUSE THE WIRES WITHIN THE HARNESS PLUG TO BE PULLED AWAY FROM THE CHASSIS PLUG RESULTING IN AN INTERMITTENT OR COMPLETE ELECTRICAL POWER LOSS TO THE TRAILER.
ON CERTAIN TRUCKS EQUIPPED WITH A TRW TILT/TELESCOPING STEERING COLUMN, THE TILT LOCKING MECHANISM ON THE STEERING COLUMN MAY DISENGAGE. THIS COULD PREVENT THE STEERING COLUMN FROM LOCKING IN TO PREDETERMINED POSITIONS.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Kenworth told its dealers about the 2008 Kenworth T600: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10188550 | Information Only Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter. |
| 10177021 | 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. |
| 10173212 | Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles. |
| 10173205 | Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage. |
| 10168703 | Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor. |
| 10045239 | KENWORTH: REGARDING UPDATE INFORMATION FOR ENGINE BRAKE AND THROTTLE PEDAL POSITION RETURN RANGE, WHICH WAS TOO NARROW TO ENGAGE AND ENGINE BRAKE WAS NOT ENGAGING. *PE |
| 10040167 | PACCAR: INFORMATION ON PREMATURE FAN CLUTCH LINING WEAR. *RM |
| 10040166 | PACCAR: INFORMATION ON FAN HUB BEARINGS INSPECTION AND WARRANTY EXTENSION DUE TO A HIGHER THAN NORMAL FAILURE RATE. *RM |
| 10040165 | PACCAR: THERE ARE COOLING MODULES THAT MAY HAVE A LOOSE CONNECTION AT THE CHARGE AIR COOLER MOUNTING. *RM |
| 10030394 | KENWORTH TRUCK SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. A NEW STANDARD AXLE LUBE WOULD BE STANDARD INCHASSIS BEGINNING 9/15/08. THE CHASSIS LISTED WERE MANUFACTURED AFTER THAT DATE BUT WITH THE PREVIOUS STANDARD LUBE. MODELS C500, T600, T800 AND W900. CSC LETTER REC'D. *PE |
| 10027646 | KENWORTH TRUCKS: REDUCED ENGINE POWER FROM FUEL STARVATION. ANY MODEL KENWORTH EQUIPPED WITH THE 2007 EMISSIONS COMPLIANT ISX ENGINE AND OPTIONAL DAVCO 382 FUEL FILTER, BUILT PRIOR TO 8/11/08, *PE |
| 10027484 | KENWORTH TRUCKS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. EXHAUST SPACER SHORTAGE CAMPAIGN. CHASSIS LISTED MAY HAVE BEEN MANUFACTURED WITHOUT EXHAUST SPACER(S). ONE OR BOTH OF THE SPACERS M80-1021 AND M80-1022 MAY NOT HAVE BEEN INSTALLED. CSC LETTER WAS RECEIVED. *PE |
| 10026728 | KENWORTH TRUCKS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CHASSIS' ORDERED WITH SYNTHETIC TRANSMISSION FLUID BUT MAY HAVE HAD NON SYNTHETIC FLUID INSTALLED AT THE KENWORTH FACTORY. CSC LETTER WAS RECEIVED. *PE |
| 10025307 | KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. OIL FILL SUPPORT BRACKET CAMPAIGN. AN ASSEMBLY PROCESS MAY HAVE RESULTED IN OMITTING AN OIL TUBE SUPPORT BRACKET. ORIGINAL PUBLICATION 6/11/2008. CSC WAS RECEIVED. *PE |
| 10024921 | WINDSHIELD REPAIRS ON CONVENTIONAL CABS. ALL C500'S, T300'S, T600'S, T800'S AND W900'S EQUIPPED WITH CURVED GLASS. MODEL YEAR UNKNOWN. *NJ |
NHTSA manufacturer communications (public domain)
NHTSA investigations
Driveshaft separates from tractor
Horton Fan Hub Failures
REAR BRAKE AIR CHAMBER MTG BRACKETS
NHTSA Office of Defects Investigation