Nissan
Source-verified model
Nissan RE4R03A
The 4-speed automatic transmission RE4R03A ( RL4R01А/JR403E, RG4R01А) for engines with the capacity from 2 up to 3-liters was produced by Jatco in 1988 for the off-road vehicle Patrol. This transmission made a good impression and after some adjustments in 1999, it became widely used for RWD Nissan models. This gearbox found application on sport cars 300ZX and on Infiniti Q45 with V8 engines.
Speeds
4
Type
AT
Drive
RWD/AWD
ATF capacity (L)
8,7
ATF change (L)
4
ATF type
Dexron III
Other and alternative codes of this transmission
RE4R03A
RE4R03-A
verified naming
OEM designation
source name
Common problems & symptoms
Problems and symptoms reported for this transmission, compiled from repair sources. Not a complete list.
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Gaskets and Seals Degradation
Most common repair need; gasket and seal kit replacement is the typical service procedure for this transmission.
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Bushing Wear Severe Conditions
Bushings require replacement on vehicles operated under severe or heavy-duty driving conditions.
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One-Way Clutch Failure
Rare failure of one or more one-way clutches requiring replacement in this transmission.
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Solenoid Pack Contamination
Solenoid sets become contaminated and require cleaning; full replacement is rare but occasionally necessary.
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About this transmission
Transmission general data
The 4-speed automatic transmission RE4R03A ( RL4R01А/JR403E, RG4R01А) for engines with the capacity from 2 up to 3-liters was produced by Jatco in 1988 for the off-road vehicle Patrol. This transmission made a good impression and after some adjustments in 1999, it became widely used for RWD Nissan models. This gearbox found application on sport cars 300ZX and on Infiniti Q45 with V8 engines.
Technical issues and repair guidelines
This transmission is quite reliable as all rear-driven Nissan vehicles. In terms of design, this transmission is similar to RE4R01B\A and R4A-EL produced by Mazda. Repair parts for this gearbox are ordered in very rare cases. Therefore, in most cases owners of cars equipped with this transmission prefer to replace it with a new or used unit, rather then to spare time and money on its repair.
Typical problems of this transmission are similar to problems of the RE4R01A\B transmission. In most cases, repair specialists order the repair kit of gaskets and seals when they have to deal with this transmission. Sometimes, it is required to replace bushings on cars operating under severe conditions. In rare cases, it is necessary to change one of one-way clutches or set of solenoids, which get cleaned more often than replaced. Not complicated repair procedures for this reliable transmission can add several years to its service life.
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