The 4R01 was a 4-speed

automatic transmission An automatic transmission (sometimes abbreviated to auto or AT) is a multi-speed transmission used in internal combustion engine-based motor vehicles that does not require any input from the driver to change forward gears under normal driving c ...

from

Nissan , trade name, trading as Nissan Motor Corporation and often shortened to Nissan, is a Japanese multinational corporation, multinational Automotive industry, automobile manufacturer headquartered in Nishi-ku, Yokohama, Japan. The company sells ...

Jatco , abbreviated from "Japan Automatic Transmission COmpany", is a company that manufactures automatic transmissions for automobiles. History In August 1943, Nissan established an aircraft engine production plant in the town of Yoshiwara, Shizuoka ...

subsidiary for

rear wheel drive Rear-wheel drive (RWD) is a form of engine and transmission layout used in motor vehicles, in which the engine drives the rear wheels only. Until the late 20th century, rear-wheel drive was the most common configuration for cars. Most rear-wheel ...

vehicles with

longitudinal engine In automotive engineering, a longitudinal engine is an internal combustion engine in which the crankshaft is oriented along the long axis of the vehicle, front to back. Use This type of motor is usually used for rear-wheel drive cars, except ...

Versions

RL4R01A

The RL4R01A is a hydraulic controlled unit for its main operation. Shift timing is based on throttle cable position and governor pressure. Its only electronic parts are two solenoids, one for the torque converter clutch, and the other for the manual overdrive cancel switch, but these do not affect the gears control and passing. It is also called JR402 by Jatco.

RE4R01A

The RE4R01A (or Jatco JR402E ) is a fully electronic controlled unit. It is also called JR402E by Jatco and R4A-EL by Mazda. Despite the internals are mostly the same, valve bodies, cases and housings have some divergences with the RL4R01A.

RE4R01B

The RE4R01B is a RE4R01A with some little changes, like the valve body, filter, some solenoids and the band. Like the RE4R01A, it is also called JR402E by Jatco.

Specifications

Main design

For its four forward gear ratios and reverse, the 4R01 uses five

clutch A clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft to a driven shaft. In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). ...

, one band and two

one-way clutch One-way or one way may refer to: * One-way traffic, a street either facilitating only one-way traffic, or designed to direct vehicles to move in one direction *One-way travel, a trip that does not return to its origin Music *One Way (American ba ...

Strength

There are some versions stronger than others. These can be either RL4R01A or RE4R01A. The differences between these versions are the number of discs of the High clutch (4 to 5) and Forward clutch (5 to 8).

Gear ratios

Applications

* RL4R01A ** 1998–2004 Nissan Frontier (D22) *** 1998–2004

KA24DE The KA engines were a series of four-stroke inline-four gasoline piston engines manufactured by Nissan, which were offered in 2.0 and 2.4 L. The engines blocks were made of cast-iron, while the cylinder heads were made of aluminum. Despite their ...

(Type A). ** 1990–1997 Nissan Hardbody Truck (D21) *** 1990–1997 KA24E (Type A). ** 1990–1995 Nissan Pathfinder (WD21) *** 1990–1995 KA24E (Type A). * RE4R01A ** 1992–1997

Infiniti J30 The Infiniti J30, marketed as the Nissan Leopard J Ferie in Japan, was a rear wheel drive luxury car. The J30 went into production on April 7, 1992 as a 1993 model to replace the M30 (which was a coupe), and was launched in the United States afte ...

** 1990–1992

Infiniti M30 The Infiniti M is a line of mid-size luxury (executive) cars from the Infiniti luxury division of Nissan. From 2013 (model year 2014) on it has been marketed as the Infiniti Q70, reflecting the company's new naming scheme. The first iteration was ...

** 1997–2003

Infiniti QX4 The Nissan Pathfinder is a range of sport utility vehicles manufactured by Nissan since 1985. The vehicle was originally sharing Nissan's compact pickup truck platform, and having been through four generations is now in its fifth incarnation. Si ...

** 1992–1995

Mazda 929 The Mazda 929 is a full-size car which was sold by the Japanese automobile manufacturer Mazda between 1973 and 1997. Mazda used the 929 nameplate for export markets only, badge engineering In the automotive industry, rebadging is a form of ...

** 1989–1999

Mazda MPV The Mazda MPV (Multi-Purpose Passenger Vehicle) is a minivan manufactured by Mazda. Introduced in 1988 as a rear-wheel-drive model with optional selectable four-wheel drive, this was replaced in 1999 with a front-wheel-drive version with optional ...

** 1990–1993 Mazda Pickup ** 1993–1996

Mazda RX-7 The Mazda RX-7 is a front-engine, rear-wheel-drive, rotary engine-powered sports car that was manufactured and marketed by Mazda from 1978 until 2002 across three generations, all of which made use of a compact, lightweight Wankel rotary engine. ...

** 1989–1994 Nissan 240SX (S13) *** 1989–1990 KA24E (Type A). *** 1991–1994 KA24DE (Type A). ** 1995–1998 Nissan 240SX (S14) *** 1995–1998 KA24DE (Type A). ** 1990–1997 Nissan 300ZX Non-Turbo ** 1999–2004 Nissan Frontier (D22) *** 1999–2004 VG33E (Type A). *** 2001–2004 VG33ER (Type A). ** 1987–1999

Nissan Gloria The Gloria ( ja, 日産・グロリア) is a large luxury car made from 1959 by the Prince Motor Company, and later by Nissan Motors since its merger with the former - hence being originally marketed as Prince Gloria and later as Nissan Gloria. ...

** 1990–1997 Nissan Hardbody Truck (D21) *** 1990–1995

VG30E The VG engine family consists of V6 engines designed and produced by Nissan for several vehicles in the Nissan lineup. The VG series was introduced in 1983, becoming Nissan's and Japan's first mass-produced V6 engine. VG engines displace between 2 ...

2WD (Type A). *** 1990–1995

4WD (Type B). ** 1990–1995 Nissan Pathfinder (WD21) *** 1990–1995 VG30E 2WD (Type A). *** 1990–1995 VG30E 4WD (Type B). ** 1996–2004 Nissan Pathfinder (R50) *** 1996–2000 VG33E (Type A). *** 2001–2004 VQ35DE (Type A). ** 1996–1998 Nissan Skyline R33 GTS turbo ** 1996–2001

Nissan Stagea The Nissan Stagea is a station wagon produced by Nissan from 1996 to 2007. It was originally produced by Nissan in 1996 as direct competition for the Subaru Legacy Touring wagon in Japan, and was exclusive to '' Nissan Prince Store'' Japanese ...

** 2000–2004

Nissan Xterra The Nissan Xterra is a truck-based compact SUV manufactured and marketed by Nissan from 1999–2015 across two generations; the first (1999–2004) sharing a platform as well as front bumper, hood, A-pillar, windshield and front doors with the ...

** –1989 Nissan Van * RE4R01B ** 1992–2004

Nissan Skyline The is a brand of automobile originally produced by the Prince Motor Company starting in 1957, and then by Nissan after the two companies merged in 1967. After the merger, the Skyline and its larger counterpart, the Nissan Gloria, were sold in ...

References

*RL4R01A ATSG manual, April 2004 edition *RE4R01A ATSG manual, March 2003 edition *Nissan Pathfinder (WD21) 1994 FSM *Nissan Frontier (D22) 1999 FSM *Nissan Hardbody Truck (D21) 1995 FSM *Nissan 240SX (S13) 1991 FSM