AI DamageKenworth T800: problems, complaints, bulletins
Summary for the Kenworth T800 across 10 model years: 0 owner complaints and 52 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 53 |
| Engine and cooling | 0 | 0 | 31 |
| Electrical system | 0 | 0 | 26 |
| Equipment | 0 | 0 | 20 |
| Fuel system | 0 | 0 | 10 |
| Service brakes | 0 | 0 | 10 |
| Powertrain | 0 | 0 | 9 |
| Steering | 0 | 0 | 9 |
| Seat belts | 0 | 0 | 8 |
| Seats | 0 | 0 | 8 |
| Structure | 0 | 0 | 6 |
| Forward collision avoidance | 0 | 0 | 5 |
| Visibility | 0 | 0 | 5 |
| Wheels | 0 | 0 | 4 |
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "Kenworth
- The verbiage in the Introduction section has been updated
- The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to…
- The PACCAR Powertrain Prognostics Webcast video link has been removed
- Kenworth - The Warranty section has been updated to include Peterbilt-specific SRT codes for…
- EMY21-25 GHG Label Replacement (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels…
- (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation
- The attached procedures document has been updated with more detail and explanations
- KW & PB DEF Quality Sensor part number Q21-6127-001 for Cummins X15 engines has been added to this…
- KW & PB DEF Quality Sensor part number Q21-6127-001 for PACCAR PX-7 and Cummins X15 engines has been added…
- Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values
- CARB Chassis Update - Chassis list updated with 5 KW and 31 PB additional chassis
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.