2004 Kenworth T800

○ Not enough data
2004 Kenworth T800
RENDERED 2026-08-02T14:01:38.681Z

Only 3 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 3 complaints on file — too few for a fair verdict. The data below is complete but unranked.

How is this computed?

COMPLAINTS PER YEAR

Complaints per year, Kenworth T800 Bar chart of distinct NHTSA complaints filed per model year, 2004 highlighted. 1987: 0 complaints 1987 1988: 0 complaints 1989: 0 complaints 1990: 0 complaints 1991: 0 complaints 1992: 0 complaints 1992 1993: 0 complaints 1994: 2 complaints 1995: 2 complaints 1996: 1 complaints 1997: 1 complaints 1997 1998: 1 complaints 1999: 4 complaints 2000: 1 complaints 2001: 1 complaints 2002: 0 complaints 2002 2003: 1 complaints 2004: 3 complaints 2004 2005: 3 complaints 2006: 4 complaints 2007: 1 complaints 2007 2008: 1 complaints 2009: 2 complaints 2010: 1 complaints 2011: 1 complaints 2012: 1 complaints 2012 2013: 0 complaints 2014: 0 complaints 2015: 0 complaints 2016: 1 complaints 2017: 0 complaints 2017 2018: 1 complaints 2019: 0 complaints 2020: 0 complaints 2021: 0 complaints 2022: 0 complaints 2022 2023: 0 complaints 2024: 0 complaints 2025: 0 complaints 2025
2004: 3 complaints
View as data table
YearComplaints
19870
19880
19890
19900
19910
19920
19930
19942
19952
19961
19971
19981
19994
20001
20011
20020
20031
20043
20053
20064
20071
20081
20092
20101
20111
20121
20130
20140
20150
20161
20170
20181
20190
20200
20210
20220
20230
20240
20250

KNOWN PROBLEM AREAS

Only 3 complaints on file for this model year -- too few to rank by share. Raw counts only, below.

VEHICLE SPEED CONTROL

1 of 3 total reports mentions: vehicle speed control.

CRASH INJURY
Show complaint excerpts

SUDDEN FULL UNCONTROLLED ACCELERATION BROUGHT ON BY A REAR END COLLISION WHILE MY VEHICLE WAS STOPPED IN TRAFFIC. DUMP TRUCK WITH ALLISON AUTOMATIC TRANSMISSION.

NHTSA ODI report, 20050421

ELECTRICAL SYSTEM

1 of 3 total reports mentions: electrical system.

FIRE
Show complaint excerpts

TL*THE CONTACT OWNS A 2004 KENWORTH T800B TRUCK. THE CONTACT STATED THE GEAR WAS IN THE PARK POSITION WITH THE ENGINE IN OPERATION WHEN SHE EXITED THE VEHICLE. THE CONTACT NOTICED FLAMES EMITTING FROM THE INSTRUMENT PANEL UPON ENTERING THE VEHICLE.

NHTSA ODI report, 20110429

SAFETY TIMELINE

R 20040507 — electrical system

CERTAIN TRUCKS EQUIPPED WITH EATON FULLER ULTRASONIC TRANSMISSIONS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 102, "TRANSMISSION SHIFT LEVER SEQUENCE, STARTER IN

Remedy: DEALERS WILL REPAIR THE CONNECTIONS IN THE WIRING HARNESS IF NECESSARY. OWNER NOTIFICATION BEGAN ON MAY 7, 2004. OWNERS SHOULD CONTACT KENWORTH AT 1-425-828-5440.

Campaign 04V174000 — check if this car was fixed

R 20040812 — equipment

CERTAIN TRUCKS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 120, 'TIRE SELECTION AND RIMS FOR MOTOR VEHICLES OTHER THAN PASSENGER CARS.' THE TIRE PRESSURE WAS OMIT

Remedy: OWNERS WILL BE PROVIDED WITH A CORRECTED LABEL. THE RECALL BEGAN AUGUST 12, 2004. OWNERS SHOULD CONTACT KENWORTH AT 1-425-828-5440.

Campaign 04V356000 — check if this car was fixed

R 20040831 — electrical system

ON CERTAIN TRUCKS EQUIPPED WITH A COMBINATION OF CATERPILLAR C11/C13 ENGINES AND AN OPTIONAL LEECE NEVILLE BRUSHLESS ALTERNATOR, A CHAFFING POINT MAY EXIST BETWEEN A HEAT SHIELD ON THE ENGINE AND THE

Remedy: DEALERS WILL CHANGE THE ALTERNATOR TO A BRUSH-TYPE ALTERNATOR THAT IS SHORTER IN LENGTH AND PROVIDE THE NECESSARY CLEARANCE TO ALL SURROUNDING COMPONENTS. THE RECALL BEGAN AUGUST 31, 2004. OWNERS SH

Campaign 04V360000 — check if this car was fixed

R 20041112 — power train

ON CERTAIN TRUCKS BUILT WITH THE OPTIONAL DANA SPL DRIVELINE, THE U-JOINT FASTENERS AT THE OUTPUT YOKE OF THE TRANSMISSION WERE NOT PROPERLY TIGHTENED.

Remedy: DEALERS WILL VERIFY THE TORQUE OF THE U-JOINT FASTENERS. PARTS SHOWING EXCESSIVE WEAR WILL BE REPLACED. THE RECALL BEGAN ON NOVEMBER 12, 2004. OWNERS SHOULD CONTACT KENWORTH AT 1-425-828-5440.

Campaign 04V449000 — check if this car was fixed

R 20041119 — structure

ON CERTAIN TRUCKS, SOME OF THE HUCK BOLTS ON THE CAB MAY NOT HAVE BEEN PROPERLY INSTALLED.

Remedy: DEALERS WILL INSPECT AND REPLACE THE HUCK BOLTS ON THE CAB ATTACHING STRUCTURE OF THE LEFT-HAND DOOR APERTURE, IF NECESSARY. THE RECALL BEGAN ON NOVEMBER 19, 2004. OWNERS SHOULD CONTACT KENWORTH AT

Campaign 04V533000 — check if this car was fixed

R 20050113 — electrical system

ON CERTAIN TRUCKS, THE POWER FEED HARNESS P92-1993 TERMINALS WERE NOT PROPERLY CRIMPED.

Remedy: DEALERS WILL REPLACE THE HARNESS. THE RECALL BEGAN JANUARY 13, 2005. OWNERS SHOULD CONTACT KENWORTH AT 1-425-828-5440.

Campaign 04V580000 — check if this car was fixed

R 20050404 — engine and engine cooling

ON CERTAIN TRUCKS EQUIPPED WITH WEBASTO HEATERS, THE BURNER TUBES ARE MADE OF MATERIAL THAT DOES NOT MEET SPECIFICATIONS AND COULD FAIL PREMATURELY.

Remedy: DEALERS WILL REPLACE THE SUSPECTED DEFECTIVE PARTS FREE OF CHARGE. THE RECALL BEGAN ON APRIL 4, 2004. OWNERS MAY CONTACT KENWORTH AT 425-828-5440 OR PETERBILT AT 940-591-4201.

Campaign 05V084000 — check if this car was fixed

R 20050610 — suspension

ON CERTAIN HEAVY DUTY CLASS 8 TRUCKS, THE SUSPENSION HAS TRANSVERSE BEAM CASTINGS THAT MAY FRACTURE UNDER NORMAL LOADS. IF A CASTING BREAKS WHEN THE VEHICLE IS TRAVELING ON A ROADWAY THERE IS THE POT

Remedy: DEALERS WILL INSPECT AND REPLACE THE DEFECTIVE TRANSVERSE BEAM ASSEMBLIES FREE OF CHARGE. THE RECALL BEGAN ON JUNE 10, 2005, WITH LETTERS BEING MAILED TO PETERBILT OWNERS; AND ON JUNE 17, 2005, FOR K

Campaign 05V189000 — check if this car was fixed

R 20060417 — engine and engine cooling

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

R 20070509 — power train

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

R 20090126 — 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 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

R 20090720 — 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 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

BUY-SMART CHECKLIST

2004 Kenworth T800 — pre-purchase inspection

  • Test/inspect for vehicle speed control issues (1 reports on file for this year).
  • Test/inspect for electrical system issues (1 reports on file for this year).
  • Verify recall 04V174000 (electrical system) has been completed.
  • Verify recall 04V356000 (equipment) has been completed.
  • Verify recall 04V360000 (electrical system) has been completed.
  • Verify recall 04V449000 (power train) has been completed.
  • Verify recall 04V533000 (structure) has been completed.
  • Verify recall 04V580000 (electrical system) has been completed.
  • Verify recall 05V084000 (engine and engine cooling) has been completed.
  • Verify recall 05V189000 (suspension) has been completed.
  • Verify recall 05V570000 (engine and engine cooling) has been completed.
  • Verify recall 07V107000 (power train) has been completed.
  • Verify recall 08V485000 (suspension) has been completed.
  • Verify recall 09V239000 (service brakes, air) has been completed.

FAQ

Is the 2004 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 2004 Kenworth T800?

The most-reported component is vehicle speed control, accounting for 33% of complaints on file.

How many recalls does the 2004 Kenworth T800 have?

12 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.