The Jatco JF403E or RE4F04A 4-speed automatic transmission has been produced since 1990 and is installed in large sedans with engines up to 3.0 liters and 290 Nm of torque. In Mazda vehicles, this transmission carries its own designation, the LJ4A-EL.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | front |
| Engine volume, l | up to 3.0 |
| Torque output, Nm | up to 290 |
| Recommended oil | Nissan ATF Matic Fluid D |
| Oil capacity, liter | 8.4 |
| Replacing the oil | every 75 000 km |
| Replacing the filter | every 75 000 km |
| Gearbox lifespan, km | ~250 000 km |
Gear ratios Jatco RE4F04A
Using the example of a 1998 Mazda Millenia with a 2.0 liter engine:
| Main | 4.375 |
| 1st | 2.784 |
| 2nd | 1.544 |
| 3rd | 1.000 |
| 4th | 0.697 |
| Reverse | 2.333 |
Using
The transmission was installed on:
- Infiniti I30 1 (A32) in 1995 – 1999; I30 2 (A33) in 1999 – 2004;
- Isuzu Impulse 2 (JT) in 1990 – 1993;
- Mazda Millenia I (TA) in 1992 – 2002;
- Samsung SM5 1 (A32) in 1998 – 2005;
- Samsung SM7 1 (EX2) in 2004 – 2011;
- Nissan Altima 1 (U13) in 1993 – 1997; Altima 2 (L30) in 1998 – 2001;
- Nissan Maxima 4 (A32) in 1994 – 2000; Maxima 5 (A33) in 1999 – 2006;
- Nissan Teana 1 (J31) in 2003 – 2008;
- Nissan Presage 1 (U30) in 1998 – 2003;
- Nissan Primera 3 (P12) in 2001 – 2008;
- Nissan X-Trail 1 (T30) in 2000 – 2007.
Disadvantages of the Jatco JF403E gearbox
- All problems with this reliable automatic transmission are related, one way or another, to oil contamination;
- Friction wear products are carried by the lubricant throughout the transmission, clogging everything;
- Clogged valve body solenoids cause jerking and lurching during shifts;
- A leaking pump seal is a sign of wear in the torque converter lockup;
- Due to oil starvation, the rear planetary gear splines quickly wear out.
