AI DamagePeterbilt 320: problems, complaints, bulletins
Summary for the Peterbilt 320 across 8 model years: 0 owner complaints and 36 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 | 23 |
| Equipment | 0 | 0 | 23 |
| Engine and cooling | 0 | 0 | 21 |
| Service brakes | 0 | 0 | 20 |
| Electrical system | 0 | 0 | 17 |
| Structure | 0 | 0 | 11 |
| Visibility | 0 | 0 | 11 |
| Powertrain | 0 | 0 | 10 |
| Fuel system | 0 | 0 | 6 |
| Vehicle speed control | 0 | 0 | 6 |
| Steering | 0 | 0 | 3 |
| Wheels | 0 | 0 | 3 |
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.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "Kenworth
- Certain vehicle model year 2022 Kenworth chassis equipped with Engine Model Year (EMY) 2021 PACCAR MX…
- Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting…
- 7/700 Service Agreement - Letter Only
- 07/24/2024 - Updated the Emissions Warranty Coverage tables
- Emissions Recall Certain vehicles with PACCAR MX-11 and MX-13 EMY2016 engines with less than 300,000 miles…
- An engine software defect exists in certain vehicles equipped with EMY17 MX-13 and MX-11 engines that…
- RFID (Radio Frequency ID) tags are being added and used to track Non-Test Ready (NTR) trucks to…
- Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis…
- The service information for Bendix Air Dryer maintenance is being updated to include new procedures
- This bulletin provides information on the EPA21 MX fuel injector cleaning procedure and includes suggested…
- Information Only â New Level 1 required tools are available to support MY21B MX engines
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.