Nissan RE4R03A 4-Speed Automatic Transmission (RWD/4WD) · Nissan / Infiniti · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
1995–2004 Nissan Pathfinder, 1997–2004 Nissan Frontier (V6), 1997–2002 Infiniti QX4
| Configuration | 4-speed automatic RWD/4WD transmission |
|---|---|
| Gear Ratios | 1st 2.78:1 · 2nd 1.54:1 · 3rd 1.00:1 · 4th 0.69:1 · Rev 2.27:1 |
| Fluid Type | Nissan Matic-K ATF |
| Fluid Capacity | 9.0 qts total, 4.2 qts service refill |
The RE4R03A shares the endemic governor circuit failure of all RE4-series transmissions. Failure causes limp mode and high-RPM shift timing.
Symptoms: Late shifts, DTC P0745 or P1762, limp mode with 3rd gear only
The overdrive (4th gear) band wears from normal use, causing slip specifically in 4th gear on highway.
Symptoms: Highway slip at cruise, RPM flare in 4th gear, engagement shudder when OD engages
The front differential oil seal leaks ATF into the 4WD transfer unit on Pathfinder applications.
Symptoms: ATF leak from front axle area, 4WD engagement issues, puddle under vehicle after parking
RE4R03A rebuild replaces governor solenoid, OD band set, all clutch packs, and all seals. 4WD transfer compatibility and front differential seal are inspected. Torque converter is rebuilt.
Nissan Matic-K ATF every 30,000 miles. Check 4WD transfer case fluid and front differential fluid separately on Pathfinder. Do not mix Matic-K with earlier Matic-D in the same sump.
1995–2004 Pathfinder, 1997–2004 Frontier V6, and 1997–2002 Infiniti QX4.
A full rebuild ranges $1,550–$2,050 at Chicago Transmission.
Nissan Matic-K ATF for RE4R03A-equipped Pathfinders.
This is the overdrive band wearing — a common RE4R03A issue. The band needs adjustment or replacement.
Typically 2–3 business days at Chicago Transmission.
Free diagnostic, written estimate, lifetime warranty. Chicago's RE4R03A rebuild specialists since 1987.
