The Chrysler 47RH (or A618) 4-speed automatic transmission was produced from 1993 to 1995 and was installed in Dodge Ram 8.0-liter Magnum engines and 5.9-liter Cummins diesel engines. This automatic transmission served as the basis for the popular 47RE and 48RE electronically controlled automatic transmissions.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | rear / all wheel |
| Engine volume, l | up to 8.0 |
| Torque output, Nm | up to 610 |
| Recommended oil | Mopar ATF+4 (MS-9602) |
| Oil capacity, liter | 14.5 |
| Replacing the oil | every 50 000 km |
| Replacing the filter | every 50 000 km |
| Gearbox lifespan, km | ~360 000 km |
| Weight, kg | 91 |
Gear ratios Chrysler 47RH
Using a 1994 Dodge Ram with an 8.0 liter engine as an example:
| Main | 3.55 |
| 1st | 2.45 |
| 2nd | 1.45 |
| 3rd | 1.00 |
| 4th | 0.69 |
| Reverse | 2.21 |
Using
The transmission was installed on:
- Dodge Ram 2 (DR) in 1993 – 1995.
Disadvantages of the Chrysler 47RH gearbox
- This is a reliable automatic transmission, but problems do occur at high mileage;
- Renew the torque converter clutch every 150,000 km, otherwise the solenoids will become clogged with dirt;
- Lower pressure will cause the clutches in the Direct and Forward clutch packs to burn out;
- At 200,000 km, the brake band and reverse drum often need to be replaced;
- Also, the unreliable centrifugal regulator and wiring are often criticized on forums.
