Vehicle recall 04V378000 · August 2, 2004
2003 Peterbilt 320
Certain trucks equipped with nexgen liquid natural gas (lng) tanks are being recalled.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Certain trucks equipped with nexgen liquid natural gas (lng) tanks are being recalled. The introduction of water into the discharge side of both the primary and secondary relief valves simultaneously and subsequent freezing in service can render the valves temporarily inoperative.
- Consequence
- If not inspected the risk of tank over-pressurization and a catastrophic tank rupture can occur, potentially resulting in serious injury or death.
- Remedy
- Nexgen will notify the customer, perform an inspection, and provide instructions for ordering and installing the retrofit kit. Owners should contact nexgen at 1-770-720-6780 or peterbilt at 1-940-591-4201.
- Notes
- Paccar recall no, 704-c.customers can also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash 2-dot (1-888-327-4236).
Recall details
- NHTSA campaign
- 04V378000
- Reported to NHTSA
- August 2, 2004
- Filed by
- PACCAR INCORPORATED
- Manufacturer campaign
- 704-C
- Vehicles potentially affected
- 1
- Initiated by
- NHTSA’s Office of Defects Investigation
- Components
- Fuel system, other › Storage › Tank assembly › Pressure relief devices
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Peterbilt 320 (2003): 2003
Has your Peterbilt been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Peterbilt dealer can also check your VIN. Recall repairs are free.