The Chrysler 45RFE 4-speed automatic transmission was produced in the United States from 1998 to 2003 and was installed in rear- and all-wheel drive models with PowerTech 3.7 EKG and 4.7 EVA engines. In many markets, this transmission is known as the Jeep Cherokee (Liberty) automatic transmission.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | rear / all wheel |
| Engine volume, l | up to 4.7 |
| Torque output, Nm | up to 450 |
| Recommended oil | Mopar ATF+4 (MS-9602) |
| Oil capacity, liter | 13.3 |
| Replacing the oil | every 60 000 km |
| Replacing the filter | every 60 000 km |
| Gearbox lifespan, km | ~350 000 km |
Gear ratios Chrysler 45RFE
Using the 2002 Jeep Cherokee with a 3.7-liter engine as an example:
| Main | 3.73 |
| 1st | 3.00 |
| 2nd | 1.67 1.50 in kick-down mode |
| 3rd | 1.00 |
| 4th | 0.75 |
| Reverse | 3.00 |
Using
The transmission was installed on:
- Dodge Dakota 2 (DN) in 1999 – 2002;
- Dodge Durango 1 (DN) in 1999 – 2002;
- Dodge Ram 3 (DT) in 2001 – 2002;
- Jeep Cherokee 3 (KJ) in 2001 – 2003;
- Jeep Grand Cherokee 2 (WJ) in 1998 – 2002.
Disadvantages of the Chrysler 45RFE gearbox
- This is a fairly durable transmission, and with frequent oil changes, it lasts up to 350,000 km;
- Dirty lubricant in the gearbox wears out the oil pump and its rubberized cover;
- Then the pressure drops, and the clutches in the Overdrive or Underdrive packages burn out;
- The first version of the solenoid block was not particularly reliable, but the second is better;
- Failures in the electronic transmission control system are also common.
