RE4F04A Master Rebuild Kit 1992-2006, new and ready to install. Fits the RE4F04A. Ships fast from the USA.
If your Nissan Maxima, Altima, Quest, Sentra SE-R 2.5, Infiniti I30 or I35, or Mercury Villager has a four-speed automatic that slips into third, flares between gears or leaves black, burnt-smelling fluid with clutch material in the pan, the clutches inside the RE4F04A are done and the unit needs a real overhaul. This RE4F04A master rebuild kit for 1992-2006 is aimed at that job: a complete teardown where the frictions and the rubber and gasket sealing are all replaced at once, rather than patching one leak or one clutch pack and sending the car back out.
The RE4F04A is Jatco's large-case front-drive four-speed, later sold under the JF403E name. It applies a set of multi-disc clutches and a band, all fed by line pressure from the valve body, to make each gear. Every piston in that stack depends on lip seals and on plastic or Teflon sealing rings that carry fluid from the case into spinning drums. When those seals harden and the friction material glazes, apply pressure leaks away, the clutches slip, and the heat that creates finishes off whatever was left. A master kit puts back the wearing soft parts as a set. The kit pictured includes the friction plates, the gasket set, piston seals, O-rings and the sealing rings; ask us for the exact packing list before you order if you need to know whether steels, a filter or a band are included.
This is the step up from our RE4F04A overhaul kit, which covers gaskets and seals only. If the frictions are worn, a seal-only kit just reseals a transmission that will keep slipping.
Check the fluid level hot and look at the pan and filter first. Clean fluid with a single electrical fault usually means a solenoid problem; scan for codes and test the solenoids before committing to a rebuild. Our transmission slipping diagnosis guide walks through separating a pressure problem from worn clutches, and a line pressure check with a gauge, covered in our transmission pressure testing guide, tells you whether the pump and valve body are delivering what the clutches need. If pressure is normal and the unit still slips, the clutch packs and seals are the problem and a master kit is the right purchase. If you are weighing the labor against a swap, read rebuild vs replace vs reman first.
This kit is listed for the RE4F04A from 1992 to 2006. TransGo's identification sheet groups the large-case units into A and V models (1992-1999 Maxima, 1993-1999 Altima, 1993-2002 Quest and Mercury Villager, 1995-1999 Infiniti I30) and B models (2000-2003 Maxima, 2000-2006 Altima and Sentra SE-R 2.5L, 2000-2001 I30, 2002 I35). The two use different valve bodies, harness routing and lockup control, and the small-case RE4F03 in the regular Sentra, 200SX and G20 is a different transmission altogether. Clutch and seal content can change across those revisions, so compare your drum and piston count, case and pan gasket to the photo, or send us your year, model and VIN and we will confirm the fit before it ships. Browse every transmission we carry on the shop by transmission page.
| Fits | RE4F04A 1992-2006 |
| Part type | Master Rebuild Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
An overhaul kit is the gaskets, seals and sealing rings only. This master kit also includes friction plates, as pictured, so it is the one to use when the clutches are slipping or burnt. Ask us for the full packing list if you need to confirm steels, filter or band.
Both use the large-case RE4F04A B model, which is inside the 1992-2006 range listed. Because Nissan revised the unit between the A/V and B models, send us your year and VIN and we will confirm the kit matches before it ships.
Those use the small-case RE4F03, a different transmission. This kit is for the large-case RE4F04A only.
Replace the EPC (line pressure) solenoid, which TransGo recommends on every overhaul, and inspect the pump, input drum, bushings and planetary. Flush the cooler so old debris does not reach the new clutches.
Use the Nissan ATF listed in your owner's manual for your model year. Check the level with the fluid hot; TransGo notes the factory level runs low and suggests about 1/4 to 3/8 inch above the full mark hot.
Clear any stored codes, road test through every gear with the fluid at operating temperature, and recheck the level hot. Inspect for leaks at the pan and cooler lines after the first drive.
