Gearbox Aisin TB-50LS

The Aisin TB-50LS 5-speed automatic transmission has been produced in Japan since 2002 and is installed on many rear-wheel drive and all-wheel drive models such as the Toyota Land Cruiser or Lexus GX470. On Mitsubishi SUVs this automatic transmission is known as A5AWF, on Toyota as A750E, A750F and A750H.


Production years since 2002
Type automatic transmission
Number of gears 5
Type of drive all wheel / rear
Engine volume, l up to 4.7
Torque output, Nm up to 450
Recommended oil Toyota ATF WS
Oil capacity, liter 10.5
Replacing the oil every 60,000 km
Replacing the filter every 60,000 km
Gearbox lifespan, km ~400 000
Weight, kg 86

Gear ratios Aisin TB-50LS

Using the example of a Lexus GX470 2005 with a 4.7 liter engine:

Main 3.727
1st 3.520
2nd 2.042
3rd 1.400
4th 1.000
5th 0.716
Reverse 3.224

The transmission was installed on:

  • Isuzu D-Max 2 (RT), MU-X 1 (RF);
  • Kia Sorento 1 (BL);
  • Lexus GX470 1 (J120), LX470 2 (J100);
  • Mitsubishi Pajero 4 (V90), Pajero Sport 3 (KS), L200 5 (KK);
  • Suzuki Grand Vitara 2 (JT);
  • Toyota 4Runner 4 (N210), 4Runner 5 (N280), Crown 12 (S180), FJ Cruiser 1 (XJ10), Fortuner 1 (AN50), Fortuner 2 (AN160), Hilux 7 (AN10), Hilux 8 (AN120), Land Cruiser 100 (J100), LC Prado 120 (J120), Mark X 1 (X120), Sequoia 1 (XK30), Sequoia 2 (XK60), Tacoma 2 (N220), Tundra 1 (XK30), Tundra 2 (XK50).

Disadvantages of the TB-50LS gearbox

  • This is a fairly reliable gearbox and problems arise only at high mileage;
  • First, the torque converter lock-up clutch wears out, contaminating the oil;
  • And then dirty oil damages the solenoids and corrodes the valve body channels;
  • Worn torque converter clutch causes vibrations that break the oil pump bushing;
  • Then lubricant leaks appear, and a significant drop in level is dangerous for the transmission.

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