The 2.6-liter Mitsubishi 4G54 or G54B gasoline engine was produced from 1978 to 1992 and was installed on the Pajero SUV, L200 pickup truck and a number of Chrysler cars. After the end of production in Japan, the motor was assembled by Chinese companies for quite some time.
The 4G5 family includes engines: 4G52 and 4G53.
The engine was installed on:
- Mitsubishi Debonair A30 in 1978 – 1986;
- Mitsubishi Starion A180 in 1982 – 1989;
- Mitsubishi Pajero L040 in 1982 – 1991; Pajero V30 in 1991 – 1992;
- Chrysler LeBaron in 1982 – 1985;
- Chrysler New Yorker in 1983 – 1985;
- Chrysler Sigma in 1980 – 1987;
- Chrysler Town & Country in 1982 – 1985;
- Dodge Caravan in 1984 – 1987;
- Dodge Challenger 2 in 1978 – 1983.
Specifications
| Production years | 1978-1992 |
| Displacement, cc | 2555 |
| Fuel system | carburetor (4G54 carburetor) injector (4G54B ECI-multi) injector (4G54T ECI-Turbo) |
| Power output, hp | 103 – 114 (4G54 carburetor) 131 – 137 (4G54B ECI-multi) 175 (4G54T ECI-Turbo) |
| Torque output, Nm | 188 – 198 (4G54 carburetor) 212 – 220 (4G54B ECI-multi) 314 (4G54T ECI-Turbo) |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 91.1 |
| Piston stroke, mm | 98 |
| Compression ratio | 8.4 – 8.8 (4G54 carburetor) 9.2 (4G54B ECI-multi) 7.0 (4G54T ECI-Turbo) |
| Features | no |
| Hydraulic lifters | no (4G54 carburetor) as an option (4G54B ECI-multi) no (4G54T ECI-Turbo) |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no (4G54 carburetor) no (4G54B ECI-multi) TD05-12A (4G54T ECI-Turbo) |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.9 |
| Fuel type | petrol |
| Euro standards | EURO 1 (4G54 carburetor) EURO 2 (4G54B ECI-multi) EURO 2 (4G54T ECI-Turbo) |
| Fuel consumption, L/100 km (for Mitsubishi Pajero 1985) — city — highway — combined |
15.7 10.2 12.9 |
| Engine lifespan, km | ~450 000 |
| Weight, kg | 200 |
Disadvantages of the Mitsubishi 4G54 engine
- This engine is very reliable and has an impressive resource;
- However, due to its rarity, you will certainly have problems with service and spare parts;
- Many modifications are equipped with a Mikuni carburetor that needs to be serviced;
- On a run of more than 200 – 250 thousand km, it may require the intervention of a timing chain;
- Most versions do not have hydraulic lifters and clearances will have to be adjusted.
