The Mitsubishi W4A32 4-speed automatic transmission was produced from 1991 to 1997 and was installed on all-wheel drive versions of such right-hand drive models as Shariot or RVR. A number of sources describe a front-wheel drive version of the F4A32, but in reality there is no such automatic transmission.
This series includes: F4A21, F4A22, F4A23, F4A33, F4A41, F4A42, F4A51, W4A32, F5A51.
Specifications
| Production years | 1991 – 1997 |
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | all wheel |
| Engine volume, l | up to 2.4 |
| Torque output, Nm | up to 200 |
| Recommended oil | Mitsubishi ATF SP III |
| Oil capacity, liter | 6.7 |
| Replacing the oil | every 80,000 km |
| Replacing the filter | every 160,000 km |
| Gearbox lifespan, km | ~250 000 |
Gear ratios Mitsubishi W4A32
Using the example of a Mitsubishi Chariot 1993 with a 2.4 liter engine:
| Main | 4.422 |
| 1st | 2.551 |
| 2nd | 1.488 |
| 3rd | 1.000 |
| 4th | 0.685 |
| Reverse | 2.176 |
The transmission was installed on:
- Mitsubishi Galant 7 (E5) in 1992 – 1996;
- Mitsubishi Space Runner 1 (N1) in 1991 – 1997;
- Mitsubishi Space Wagon 2 (UF) in 1991 – 1997.
Disadvantages of the Mitsubishi W4A32 gearbox
- This is a fairly reliable old-school automatic transmission and all its problems are mainly age-related.
- And the most famous is shaft vibration due to wear of the torque converter clutches.
- Vibrations quickly break the bushings, and then the lubricant pressure in the transmission drops.
- Due to the drop in pressure, the clutches in the bags burn, and the dirt from them clogs the valve body.
- If you disassemble the gearbox, then update all the seals, as they tend to leak.
