RE4F04B Master Rebuild Kit Nissan Altima Maxima 3.5L

This is a master rebuild kit for the RE4F04B, the Jatco-built four-speed automatic transaxle Nissan ran behind the VQ V6. It covers the 2000-2004 Maxima 3.0L and 3.5L and the 2003-2004 Altima 3.5L, and the same family sits under the Infiniti I30 and I35. Before you order, match the RE4F04B stamping on your valve body cover or the tag on the case, because Nissan used several close cousins (RE4F04A, RE4F04V) that share parts but not all of them.

A master kit is what you reach for when the unit is coming apart on the bench, not just leaking. It carries the friction clutch plates, the steel reaction plates, and a full overhaul gasket and seal set so every drum and the pump get resealed as it goes back together. That is the difference between a master kit and a plain reseal or filter kit: you are replacing the wear items that actually slip, not just stopping a drip.

These boxes typically come in with a burned forward or high clutch, a slip or flare on the 3-4 shift, or a shudder that shows up warm. Once the clutch packs are cooked, new frictions and steels plus fresh seals to hold apply pressure are the only real fix. Confirm the exact plate count and any drum-specific parts against your teardown before assembly, since kit contents vary by build year.