Gearbox Mitsubishi W4A32

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.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top