Paccar/peterbilt/nexgen /lng tanks
Defect 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.
Safety Consequence
If not inspected the risk of tank over-pressurization and a catastrophic tank rupture can occur, potentially resulting in serious injury or death.
Corrective Action
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.
Similar Recalls
Other recalls from Paccar Incorporated or involving Fuel System, Other.
FAQ: Recall 04V378000
Your rights, the repair process, and what each field on this page means.
What is recall 04V378000?
NHTSA recall 04V378000 was issued by Paccar Incorporated on August 2, 2004. It addresses: Paccar/peterbilt/nexgen /lng tanks. The recall affects approximately 1 vehicles, with the defect involving the Fuel System, Other component.
How do I get this recall repaired?
Contact any authorized Paccar Incorporated dealer and reference NHTSA recall ID 04V378000 or the manufacturer campaign number 704-C. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.