AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2021 Ford F-550 Sd
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $10,000–$15,000
The 2021 Ford F-550 SD shows moderate reliability concerns, with fuel system issues being the most frequent. Recalls mainly address fuel pump failures and visibility problems. Common owner complaints align with recall issues, suggesting an average overall rating based on recurring problems.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| Fuel pump | 30,000–60,000 miles | $800–$1,500 | very common |
| Rearview camera | 20,000–50,000 miles | $300–$600 | common |
| Windshield wipers | 15,000–45,000 miles | $200–$400 | common |
| Underhood fuel filter | 30,000–70,000 miles | $100–$250 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil change every 5,000 miles
- Brake inspection annually
- Fuel filter replacement annually
- Air filter replacement every 30,000 miles
- Transmission fluid change every 50,000 miles
- Tire rotation every 10,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Engine stalling
- Fuel odor in the cabin
- Unresponsive rear camera
- Windshield wiper malfunction
- Unusual fuel consumption
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.