2006 Kenworth T800
Only 4 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 4 complaints on file — too few for a fair verdict. The data below is complete but unranked.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 1987 | 0 |
| 1988 | 0 |
| 1989 | 0 |
| 1990 | 0 |
| 1991 | 0 |
| 1992 | 0 |
| 1993 | 0 |
| 1994 | 2 |
| 1995 | 2 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 1999 | 4 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 0 |
| 2003 | 1 |
| 2004 | 3 |
| 2005 | 3 |
| 2006 | 4 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 2 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 1 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
KNOWN PROBLEM AREAS
Only 4 complaints on file for this model year -- too few to rank by share. Raw counts only, below.
3 of 4 total reports mention: electrical system.
FIREShow complaint excerpts
BOOSTER CABLE ROUTING AND CABLE MOUNTING ON 2002 KENWORTH FOUND TO BE CAUSE OF FIRE. *TR
NHTSA ODI report, 20100830
BOOSTER CABLE ROUTING AND CABLE MOUNTING ON 2002 KENWORTH FOUND TO BE CAUSE OF FIRE. *TR
NHTSA ODI report, 20100830
BOOSTER CABLE ROUTING AND CABLE MOUNTING ON 2006 KENWORTH FOUND TO BE CAUSE OF FIRE. *TR
NHTSA ODI report, 20100830
1 of 4 total reports mentions: service brakes, hydraulic.
SAFETY TIMELINE
ON CERTAIN TRUCKS EQUIPPED WITH THE BENDIX ELECTRONIC STABILITY CONTROL (ESP) SYSTEM, THE SYSTEM USES MULTIPLE SENSORS AND AN ELECTRONIC CONTROL UNIT (ECU) TO CONTROL VEHICLE UNDER STEER, OVER-STEER,
Remedy: BECAUSE OF THE IMMEDIATE AND SUBSTANTIAL RISK, KENWORTH AND PETERBILT DEALERS WILL FIRST DEACTIVATE THE YAW CONTROL FEATURE OF THE BENDIX ESP SYSTEM PREVENTING INADVERTENT ESP ACTIVATION. WHEN PARTS A
Campaign 05V543000 — check if this car was fixed
ON CERTAIN TRACTORS EQUIPPED WITH CATERPILLAR DIESEL ENGINES, THE VARIABLE VALVE ACTUATION OIL LINE MAY WEAR AGAINST THE SHARP EDGE OF THE CYLINDER HEAD IF NOT POSITIONED CORRECTLY.
Remedy: CATERPILLAR, IN CONJUNCTION WITH PACCAR, WILL BE CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN FREE OF CHARGE. OWNERS MAY CALL CATERPILLAR AT 309-675-6496, KENWORTH AT 425-828-5440,
Campaign 05V570000 — check if this car was fixed
ON CERTAIN TRUCKS EQUIPPED WITH CHALMERS REAR SUSPENSIONS, THE ADJUSTABLE TORQUE ROD END CASTINGS MAY BE BRITTLE. A BRITTLE ROD END CASTING MAY FRACTURE WITHOUT WARNING, CAUSING THE VEHICLES' REAR AX
Remedy: DEALERS WILL INSPECT THE VEHICLES TO DETERMINE IF THEY WERE MANUFACTURED WITH A SUSPECT TORQUE ROD END. IF A SUSPECT TORQUE ROD END IS FOUND, THE ENTIRE TORQUE ROD WILL BE REPLACED. THE RECALL BEGAN
Campaign 06V391000 — check if this car was fixed
ON CERTAIN TRUCKS, AN RA529 KING PIN RELEASE AIR VALVE WAS MANUFACTURED WITH THE INTERNAL SPOOL INSTALLED BACKWARDS. THIS RESULTS IN THE AIR OPTION OF THE KING PIN RELEASE SYSTEM BEING INOPERABLE. T
Remedy: KENWORTH WILL INSPECT THE KING PIN RELEASE SYSTEM AND SUSPECT VALVE. IF ANY VEHICLES HAVE A NONCONFORMING VALVE OR INCORRECT PLUMBING, IT WILL BE REPLACED AND RE-PLUMBED. THE RECALL BEGAN ON NOVEMBE
Campaign 06V461000 — check if this car was fixed
ON CERTAIN TRUCKS, THE WIRING, PARTS, OR TRANSMISSION PROGRAMMING REQUIRED FOR THE AUTO NEUTRAL FEATURE TO FUNCTION AS DESIGNED WERE EITHER NOT INSTALLED, CONNECTED, OR PROGRAMMED PROPERLY.
Remedy: DEALERS WILL INSPECT THE AFFECTED VEHICLES TO ENSURE THE AUTO NEUTRAL FEATURE FUNCTIONS PROPERLY AND, IF NEEDED, WILL MAKE THE NECESSARY REPAIRS FREE OF CHARGE. THE RECALL BEGAN ON MAY 9, 2007. OWNE
Campaign 07V107000 — check if this car was fixed
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, INCR
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.
Campaign 07V090000 — check if this car was fixed
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.
Remedy: DEALERS WILL REPLACE THE TOW PIN ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 4, 2007. OWNERS MAY CONTACT KENWORTH AT 425-828-5440 OR PETERBILT AT 940-591-4201.
Campaign 07V269000 — check if this car was fixed
ON CERTAIN TRUCKS EQUIPPED WITH CATERPILLAR C11, C13 OR C15 ENGINES, THE OIL FILL CAP CAN BECOME DISLODGED DUE TO CAP DAMAGE OR IMPROPER INSTALLATION AND BECOME LODGED IN THE U-JOINT OF THE STEERING D
Remedy: PACCAR IS WORKING WITH CATERPILLAR TO REPAIR THESE VEHICLES. REVISED OIL CAP RETENTION BASED ON THE ENGINE MODEL/CONFIGURATION WILL BE INCORPORATED TO PREVENT STEERING LOCK-UP. THE RECALL BEGAN DURI
Campaign 07V279000 — check if this car was fixed
TRAILER LIGHT PLUG FAILURE
PACCAR IS RECALLING 130 MY 2005-2007 KENWORTH C500, T800, W900, AND PETERBILT MODELS 357 AND 379 TRACTOR TRAILERS EQUIPPED WITH FABCO SLACK ADJUSTERS ON SISU AXLES. THE SLACK ADJUSTERS MAY FAIL AS A
Remedy: DEALERS WILL INSPECT AND REPLACE THE SLACK ADJUSTERS FREE OF CHARGE. THE RECALL BEGAN ON MARCH 21, 2008. OWNERS MAY CONTACT KENWORTH AT 1-425-828-5440 AND PETERBILT AT 1-940-591-4196.
Campaign 08V099000 — check if this car was fixed
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 PARTICULA
Remedy: PACCAR IS WORKING WITH CATERPILLAR TO REPAIR THESE VEHICLES (PLEASE SEE 08E041). OWNERS MAY CONTACT CATERPILLAR AT 1-800-447-4986 OR KENWORTH AT 1-425-828-5440 OR PETERBILT AT 1-940-591-4196.
Campaign 08V487000 — check if this car was fixed
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 VEHIC
Remedy: DEALERS WILL INSTALL THE CAM TUBE SUPPORT BRACKETS ON ALL OF THE REAR AXLE WHEEL ENDS. INSPECT THE REAR AXLE BRAKE ASSEMBLY AND REPLACE IT IF CRACKED. THE RECALL IS EXPECTED TO BEGIN DURING NOVEMBER
Campaign 08V485000 — check if this car was fixed
REAR BRAKE AIR CHAMBER MTG BRACKETS
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 PROFI
Remedy: DEALERS WILL INSPECT THE REAR AXLE BRAKES ASSEMBLY, REPLACE CRACKED REAR AXLE BRAKES ASSEMBLY COMPONENTS WHERE REQUIRED, AND INSTALL CAM TUBE SUPPORT BRACKETS ON ALL REAR AXLE WHEEL ENDS FREE OF CHARG
Campaign 09V239000 — check if this car was fixed
ON CERTAIN EMERGENCY VEHICLES EQUIPPED WITH CUMMINS ISL CM850 DIESEL ENGINES, THE CONNECTING RODS WHICH TRANSFER ENERGY FROM THE PISTON TO THE CRANKSHAFT ARE DEFECTIVE AND CAN RESULT IN SEIZURE OF THE PISTON PIN.
Remedy: PACCAR IS WORKING WITH CUMMINS TO REPLACE THE CONNECTING RODS FREE OF CHARGE (PLEASE SEE 06E037). OWNERS MAY CONTACT CUMMINS AT 1-800-DIESELS OR KENWORTH AT 1-425-828-5440.
Campaign 07V467000 — check if this car was fixed
BUY-SMART CHECKLIST
2006 Kenworth T800 — pre-purchase inspection
- Test/inspect for electrical system issues (3 reports on file for this year).
- Test/inspect for service brakes, hydraulic issues (1 reports on file for this year).
- Verify recall 07V467000 (engine and engine cooling) has been completed.
- Verify recall 05V543000 (steering) has been completed.
- Verify recall 05V570000 (engine and engine cooling) has been completed.
- Verify recall 06V391000 (power train) has been completed.
- Verify recall 06V461000 (trailer hitches) has been completed.
- Verify recall 07V107000 (power train) has been completed.
- Verify recall 07V090000 (service brakes, air) has been completed.
- Verify recall 07V269000 (trailer hitches) has been completed.
- Verify recall 07V279000 (engine and engine cooling) has been completed.
- Verify recall 08V099000 (service brakes, air) has been completed.
- Verify recall 08V487000 (engine and engine cooling) has been completed.
- Verify recall 08V485000 (suspension) has been completed.
- Verify recall 09V239000 (service brakes, air) has been completed.
FAQ
Is the 2006 Kenworth T800 reliable?
There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
What are the most common problems with the 2006 Kenworth T800?
The most-reported component is electrical system, accounting for 75% of complaints on file.
How many recalls does the 2006 Kenworth T800 have?
13 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.