Reliability & 5-year cost of ownership — 2004 Peterbilt 379
NHTSA data on file today
The 2004 Peterbilt 379 has 4 NHTSA recall campaigns and 1 owner complaint on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #13V593000 Certification Label Missing Information NHTSA notice
- NHTSA #07V044000 BRAKE PROPORTIONING VALVE ASSEMBLY NHTSA notice
- NHTSA #06V251000 ICON ELECTRONIC SERVICE TOOL/CUMMINS NHTSA notice
- NHTSA #05V570000 VARIABLE VALVE ACTUATION OIL LINE/OIL LEAK NHTSA notice
Most-cited components in owner complaints
- Engine and Engine Cooling 1 complaint
Average
Estimated 5-year repair + maintenance cost: $15,000–$25,000AI estimate — not from NHTSA data
The 2004 Peterbilt 379 has a moderate recall history, with issues related to brakes and engine cooling. Owner complaints are rare, indicating relatively stable performance. However, the recalls suggest areas of potential concern, particularly around engine and air braking systems.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| engine valve actuation | 100,000–150,000 miles | $500–$1,500 | occasional |
| air brake hose | 60,000–100,000 miles | $100–$300 | occasional |
| engine control system | 80,000–120,000 miles | $300–$700 | rare |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 15,000 miles
- Air filter replacement every 30,000 miles
- Brake system inspection annually
- Coolant system flush every 60,000 miles
- Engine valve adjustment every 100,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Engine losing power unexpectedly
- Air brakes not engaging properly
- Unintended engine starts
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2004 Peterbilt 379 at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.