4G63 Turbo
Mitsubishi · 2.0L Turbo I4
1992–2007
"Legendary Evo I-IX engine. Cast-iron block, forged crank. Tuning icon. 600hp+ on stock internals possible. Maintenance-intensive."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
Head gasket failure (high boost / neglect)
▸Coolant loss, overheating, milky oil
Legendary engine. Head gasket only concern at very high mileage or with modified boost.
Stock use in Greece: very reliable. 350k+ km documented. Only risk is modification or neglect.
Turbo wear at extreme mileage
▸Boost loss, slight smoke
Turbo extremely durable. Only concern at 200k+ km.
Legendary engine for Greek market. Parts available everywhere.
Other Mitsubishi Engines
Tuning Potential
600hp+ on stock block
Frequently Asked Questions
Is the Mitsubishi 4G63 Turbo reliable?
The Mitsubishi 4G63 Turbo scores 70/100 with a verdict of ACCEPTABLE. It has 2 documented issues with total repair costs between €1,400 and €3,500.
What are the common problems with the 4G63 Turbo?
The most common issues are:
- Head gasket failure (high boost / neglect) — moderate, repair cost €800–€2,000, 100,000 km–200,000 km
- Turbo wear at extreme mileage — minor, repair cost €600–€1,500, 200,000 km–∞
How much does it cost to repair the 4G63 Turbo?
Total potential repair costs for all 2 known issues range from €1,400 to €3,500. The most expensive issue is typically .
What years was the 4G63 Turbo produced?
The Mitsubishi 4G63 Turbo was produced from 1992 to 2007. It is a 1997cc I4 petrol turbo engine.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.