Why Buy a 1998 Nissan Transmission from Auto Power Source
Model year 1998 is a changeover year on both sides of the Nissan line-up. The Frontier D22 is brand new, replacing the D21 Hardbody. The Altima L30 is brand new, replacing the U13. The 240SX S14 is in its final year, coupe only. And the Quest is still the first-generation V40 with the 3.0L VG30E, because the V41 does not arrive until 1999. A part listed simply as "1998 Nissan automatic" can be any of five unrelated gearboxes. We hold 12 tested units for the year and identify each one by family before it is offered.
The hard line on this page runs between the longitudinal rear-drive units and the transverse front-drive units. The RE4R01A sits behind the Pathfinder, the Frontier and the 240SX, with its output on a tailshaft and, on 4x4 trucks, a transfer case behind it. The Maxima's RE4F04A, the 200SX's RE4F03A and the Altima and Quest units are transaxles, with the differential inside the case. No adapting makes one do the other job, and the manual side is the same: the FS5R30A truck box shares nothing with the front-drive 5-speeds.
One 1998 trap is worth naming on its own. The 240SX S14 coupe and the Pathfinder R50 both run an RE4R01A-family automatic, so the two look closely related on paper. They are not the same part: the bellhousing, tailshaft, calibration and valve body follow the car, and a truck unit will not drop into the coupe. We treat them as separate parts and confirm against the VIN rather than selling one as the other.
Every unit is shift-tested and inspected before listing, photographed before crating, and shipped free anywhere in the continental US with a warranty on the unit itself. If the VIN says the part we hold is the wrong part, we say so rather than shipping it and hoping, which is why this page is organised by family instead of by car.
Your 1998 Nissan Transmission Options: Compared
Most 1998 Nissan owners face four real choices when the transmission fails:
← Swipe sideways to see all columns →
| Option |
Cost |
Reliability |
Warranty |
Fitment Match |
| Used OEM (this collection) |
$$$ Best Value |
High — tested |
Included |
VIN-matched |
| New OEM (dealer) |
$$$$$ 2-4× more |
High |
Manufacturer |
Exact |
| Rebuilt / Reman |
$$$$ |
Varies |
6-12 mo |
May adapt |
| Junkyard |
$ Cheapest |
Unknown |
None |
DIY |
Tested used OEM hits the sweet spot — same engineering as new, fraction of the cost.
1998 Nissan Transmission Buying Guide
5 things to verify before buying a used 1998 Nissan transmission:
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Settle rear-drive against front-drive first. This is the only question that matters on a 1998 Nissan, and it is settled by the car. Pathfinder, Frontier and 240SX take the longitudinal RE4R01A or the FS5R30A truck manual; 200SX, Altima, Maxima, Quest and Sentra take a transverse transaxle. Nothing crosses that line in either direction, and no adapter plate changes it.
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Do not assume two RE4R01A units are the same part. The 240SX coupe and the Pathfinder share the family name but not the hardware: bellhousing, tailshaft and calibration follow the car, and the 4x4 Pathfinder adds a transfer case the coupe never had. Read which vehicle a listing came from, not just the family code.
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Check which generation the car is. 1998 is the first Frontier D22 and the first Altima L30, the last 240SX S14, and the last first-generation Quest V40. A 1997 Altima or a 1999 Quest is a different vehicle on a different transaxle, so a part that fits one of those will not fit the 1998 car.
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Match the engine to the case. The 1.6L GA16DE in the 200SX and Sentra, the 2.4L KA24DE in the Altima, Frontier and 240SX, the 3.0L VQ30DE in the Maxima and the 3.0L VG30E in the Quest each pair with their own unit. The Maxima listing is also split on whether the car has the limited-slip differential.
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Confirm the match with your own VIN before you order. Your VIN settles the transmission code, drivetrain and build split in one step. Text it to +1-307-441-5554 and we will confirm in writing exactly which unit fits your vehicle before you pay.
Our ASE-certified technicians verify every one of these points against your VIN before any unit ships.