Reliability & 5-year cost of ownership — 1999 Peterbilt 379
NHTSA data on file today
The 1999 Peterbilt 379 has 6 NHTSA recall campaigns and 5 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #03V125000 PACCAR/ARVINMERITOR/SKF/FRONT AXLE HUBS NHTSA notice
- NHTSA #02V037003 PACCAR/ARVINMERITOR/TRW TIE ROD ENDS (20EDL) NHTSA notice
- NHTSA #01V140006 PACCAR/TRW TIE ROD ENDS (20EDL) NHTSA notice
- NHTSA #01V179000 PACCAR/PETERBILT/CAB DOORS NHTSA notice
- NHTSA #01V044005 PACCAR/TRW STEERING SYSTEMS/TIE ROD NHTSA notice
- NHTSA #99V181001 PACCAR/ENGINE STALL NHTSA notice
Most-cited components in owner complaints
- Engine and Engine Cooling 2 complaints
- Fuel System, Diesel 1 complaint
- Fuel System, Gasoline 1 complaint
- Power Train 1 complaint
- Steering 1 complaint
Of the 5 complaints on file, 1 reports a fire (owner-reported, not verified by NHTSA).
Average
Estimated 5-year repair + maintenance cost: $8,000–$12,000AI estimate — not from NHTSA data
The 1999 Peterbilt 379 shows an average reliability profile. Significant issues include tie rod assembly complications and a known problem with front hub unit bearings, impacting steering and suspension. Though complaints are fewer, these key areas suggest moderate attention and care may be needed.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| Tie rod assembly | 60,000–100,000 miles | $700–$1,500 | common |
| Front hub unit bearings | 80,000–120,000 miles | $500–$1,000 | occasional |
| Ignition module | 70,000–110,000 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 10,000 miles
- Brake inspection bi-annually
- Transmission fluid replacement every 60,000 miles
- Coolant system flush every 50,000 miles
- Air filter replacement annually
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Steering vibrations or looseness
- Unusual noises from front hubs
- Irregular idling or stalling
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 1999 Peterbilt 379 at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.