Total Complaints
3 filings
KENWORTH T660 · model year
3 NHTSA complaints, 1 crash report, and 14 recall campaigns listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2008KENWORTHT660 carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 1 fire, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 2008 T660 is engine and engine cooling:engine:diesel with 2 filings, followed by electrical system (1). Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 14 NHTSA recall campaigns listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 3 investigation files overlapping the 2008 T660. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
Total Complaints
3 filings
Crashes Reported
1 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ENGINE AND ENGINE COOLING:ENGINE:DIESEL | 2 |
| ELECTRICAL SYSTEM | 1 |
SERVICE BRAKES, AIR
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 TUB
TRAILER HITCHES
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.
SUSPENSION
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
ENGINE AND ENGINE COOLING
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
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
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.
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
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
PARKING BRAKE:CONVENTIONAL:AIR
PACCAR IS RECALLING 1,043 MY 2008-2009 KENWORTH C500, T2000,T660, T800 AND W900 TRUCKS EQUIPPED WITH BENDIX MV-3 DASH CONTROL VALVES. THE MOLDED VALVE BODY HAS AN INCORRECT CORE PIN IN THE INJECTION MOLD CAUSING THE VALVE BODY TO BE OVERSIZED IN THE DOUBLE CHECK VALVE AREA. THIS CONDITION CAN ALLO
STEERING:GEAR BOX:SHAFT SECTOR
ON CERTAIN KENWORTH AND PETERBILT HEAVY DUTY TRUCKS EQUIPPED WITH TAS-85 TRW STEERING GEARS, THE INNER SURFACE OF THE OUTER SECTOR SHAFT TEETH OF THE STEERING GEARS MAY HAVE AN INCORRECT INVOLUTE PROFILE, WHICH MAY LEAD TO CHIPPING AND DAMAGE OF THE GEARING SYSTEM.
SERVICE BRAKES, AIR:DISC
PACCAR IS RECALLING 140 MY 2005, 2007-2009 T800, W900, AND T660 TRUCKS. THE CALIPER MOUNTING FASTENERS ATTACHING THE AIR DISC BRAKE CALIPER ASSEMBLY TO THE TORQUE PLATE MAY HAVE RECEIVED INSUFFICIENT TORQUE DURING THE INSTALLATION PROCESS. THE INSUFFICIENT TORQUE MAY ALLOW THE AIR DISC BRAKE CALIP
POWER TRAIN:AXLE ASSEMBLY
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
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
ON CERTAIN TRUCKS BUILT WITH CUMMINS C15 OR ISX ENGINES AND EQUIPPED WITH HORTON ENGINE FANS, DURABILITY TESTING REVEALED MICRO CRACKS IN THE FAN BLADES.
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
PACCAR IS RECALLING 6,169 MY 2008 KENWORTH T300, T660, T800, T2000, W900 AND C500 VEHICLES AND MY 2008-2009 PETERBILT MODELS 365, 367, 384, 387, 388, 389 AND 389 KITS. CERTAIN DOOR LATCH ASSEMBLIES ON THESE VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 20
ELECTRONIC STABILITY CONTROL (ESC)
PACCAR Incorporated (PACCAR) is recalling certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 vehicles equipped with NAMUX Software. In the event that the Anti-lo
STEERING:COLUMN
PACCAR IS RECALLING CERTAIN MODEL YEAR 2008-2010 TRUCKS EQUIPPED WITH TRW STEERING SHAFTS. THE CIRCUMFERENTIAL WELD AROUND THE STEERING SHAFT TUBE THAT WELDS THE SPLINED TUBE TO THE NON-SPLINED TUBE MAY BE MISLOCATED. MISLOCATION OF THE CIRCUMFERENTIAL WELD MAY ALLOW THE SPLINED TUBE AND NON-SPLIN
2008 KENWORTH T660 WITH A CATERPILLAR C-15 ENGINE. CONSUMER STATES TRUCK CAUGHT FIRE AFTER ACCIDENT *TGW THE CONSUMER STATED A TANKER TRUCK SUDDENLY STOPPED UNEXPECTEDLY AND THE CONSUMERS HUSBAND HIT THE TANKERS BUMPER. SMOKE AND FLAMES STARTED POURING OUT FROM UNDER THE GOOD OF THE TRACTOR. THE CONSUMERS HUSBAND GRABBED THE EXTINGUISHER, RAN TO THE FRONT OF THE TRUNK, BUT BECAUSE OF THE SMOKE AND FLAMES, HE WAS UNABLE TO OPEN THE HOOD. HE DISCHARGED THE FIRE EXTINGUISHER UNDER THE DRIVER'S SIDE WHEEL WELL, BUT THE ENTIRE TRACTOR WAS SOON ENGULFED IN FLAMES. THE FIRE DEPARTMENT EXTINGUISHED THE FLAMES AND THE TRACTOR WAS TOWED TO AN IMPOUND YARD. THE INSURANCE INVESTIGATORS COULD NOT DETERMINE THE CAUSE OF THE FIRE, DUE TO THE AMOUNT OF FIRE DAMAGE TO THE ENGINE. *JB
Mileage: 32,000
CUMMINS ISX ENGINE SHUT DOWN TWELVE TIMES SINCE AUG (7 MONTH PERIOD) ON HWY OFTEN REQUIRING A TOW UPDATED 4/26/10 *CN IT WAS FINALLY DETERMINED THE WIRING HARNESS THAT SUPPLIED POWER TO THE ECM WAS NOT CONNECTED PROPERLY FROM THE FACTORY. OVER TIME, THE CONNECTION BECAME WORSE WHICH CAUSED THE ENGINE TO SHUT DOWN. UPDATED 06/04/10. *JB
CUMMINS ISX ENGINE SHUT DOWN TWELVE TIMES SINCE AUG (7 MONTH PERIOD) ON HWY OFTEN REQUIRING A TOW UPDATED 4/26/10 *CN IT WAS FINALLY DETERMINED THE WIRING HARNESS THAT SUPPLIED POWER TO THE ECM WAS NOT CONNECTED PROPERLY FROM THE FACTORY. OVER TIME, THE CONNECTION BECAME WORSE WHICH CAUSED THE ENGINE TO SHUT DOWN. UPDATED 06/04/10. *JB
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2008 KENWORTH T660; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.