RE4R03A / RE4R01A Auto Transmission Differences

[NissanGQ4.2]

Can any one tell me what the differences are between the RE4R03A and RE4R01A auto gearboxes are???

Cheers

Todd

[Ben-e-boy]

I dont really know at a guess Id say one is for a 3.0L petrol/2.8L diesel and the other would be for th 4.2L ???

[YNOT]

I dont really know at a guess Id say one is for a 3.0L petrol/2.8L diesel and the other would be for th 4.2L ???

3lt petrol (RB30) and 2.8lt diesel (RD28) were manual only, no auto option.
I don't know the answer to the original question.

Tony

[NissanGQ4.2]

thanks guys

don't worry Tony I don't know the answer 2 the original question either *LMAO*

[YNOT]

AT a quick look on the internet it would seem Ben was on the right track. RE4R01A was fitted to RB series engines among others, but I don't think it was ever fitted to any Patrols.

Tony

[NissanGQ4.2]

Jatco 4R03 transmission

From Wikipedia, the free encyclopedia

This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (August 2010) The 4R03 was a 4-speed automatic transmission from Nissan Motor Company, Ltd.'s Jatco subsidiary.
Applications

• 1989–1996 Nissan 300ZX Twin-Turbo
• 1988–1998 Nissan Patrol
• 1990–2001 Infiniti Q45

Jatco 4R01 transmission

From Wikipedia, the free encyclopedia

This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2009) RL4R01A/RE4R01A Manufacturer Jatco Production 1988–2001 Predecessor 4N71 Class 4-speed longitudinal automatic transmission The 4R01 was a 4-speed automatic transmission from Nissan's Jatco subsidiary. It was available as either a light-duty ("RL4R01A") or medium-duty ("RE4R01A") unit for rear wheel drive vehicles with longitudinal engines. Mazda called the medium-duty version their R4A-EL.
Applications

• RL4R01A
  
  • 1990–1998 Nissan Pathfinder
  • 1990–1997 Nissan Hardbody Truck
  • 1998–2001 Nissan Frontier
  
  

• RE4R01A
  
  • 1988–1998 Nissan Pathfinder
  • 1990–1997 Nissan Hardbody Truck
  • 1989–1998 Nissan 240SX
  • 1989–1999 Mazda MPV
  • 1990–1992 Infiniti M30
  • 1990–1998 Nissan Pathfinder
  • 1990–1993 Mazda Pickup
  • 1990–1997 Nissan 300ZX Non-Turbo
  • 1992–1995 Mazda 929
  • 1992–1997 Infiniti J30
  • 1993–1996 Mazda RX-7
  • 1997–2000 Infiniti QX4
  • 1998–2001 Nissan Pathfinder
  • 1999–2001 Nissan Frontier
  • 2000–2001 Nissan Xterra
  • –1989 Nissan Van

[Chaz]

The RE4R01A was Nissans standard 4 speed auto from the late 80’s and used in virtually all models that had an auto trans option. The RE4R03A is simply a heavy duty version of the R01A. To my knowledge it was only used in the Patrol, the V8 Infinity and 300ZX Turbo by Nissan, but was also used in some Isuzu and Mazda light trucks. There are also front wheel drive versions eg, the RE4F01A.
The physical difference is mostly with the valving/programming and number of clutches per pack. It would be similar to the difference between the GM Trimatic TH180 4, 6 and 8 cylinder versions.