AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2018 Ram Promaster
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $9,000–$13,500
The 2018 Ram ProMaster tends to face issues with electrical systems and engine components. Recalls on the radiator fan overheating and transmission shifter cable separation add to the vehicle's challenges. Frequent complaints highlight persistent issues that could lead to significant repair costs over time.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| Radiator fan | 30,000–60,000 miles | $400–$700 | very common |
| Transmission shifter cable | 40,000–70,000 miles | $250–$400 | common |
| Engine cooling system | 60,000–90,000 miles | $500–$850 | occasional |
| Electrical wiring | 50,000–80,000 miles | $200–$500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 7,500 miles
- Brake fluid replacement every 30,000 miles
- Cooling system flush every 60,000 miles
- Transmission service every 60,000 miles
- Air filter replacement annually
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Overheating warning light
- Transmission shift issues
- Cooling fan noise
- Electrical shorts or failures
Generated by gpt-4o on 8/18/2026. Cost ranges are conservative estimates that account for typical regional variation.