Replaces the pickup filter and 22-bolt pan gasket on the Nissan/Infiniti RE5R05A 5-speed automatic. Fits Titan, Frontier, Armada, 350Z, G35, M35 and more.
If you are servicing the five-speed automatic in a Nissan Titan, Frontier, Xterra, Armada or Pathfinder, or an Infiniti G35, FX35, M35 or QX56, this is the kit you need on the bench when the pan comes off: one pickup filter and one 22-bolt pan gasket for the Jatco RE5R05A. It replaces Nissan filter 31728-97X00 and lines up with the common aftermarket interchange numbers B-327, JT510, 15513, 15538 and 46240-4C000. Buyers usually land here for one of two reasons: a scheduled fluid and filter service, or a weeping pan gasket on a high-mileage truck that has started leaving drops on the driveway.
The RE5R05A is a rear-drive, electronically controlled five-speed. Everything it does depends on clean, steady oil from the pump: the solenoids in the valve body meter that oil to the clutch packs and the front band, and the torque converter clutch relies on it too. The pickup filter sits inside the pan and screens every drop before it reaches the pump inlet. As friction material and fine metal build up in the media, flow drops, the pump works harder, and pressure at the solenoids becomes less consistent. The gasket keeps the oil supply sealed. On these trucks the pan sits low and takes road debris and heat cycles, so a hardened gasket that leaks slowly is a common reason the level ends up low without anyone noticing.
Look at the fluid before you buy anything else. Red, clean fluid with a harsh or flaring shift usually points to the valve body or solenoids, not the filter. Burnt fluid with a layer of fine material on the magnet means wear inside the unit, and a new filter is the right first step before you judge how far it has gone. Milky fluid means coolant intrusion, and Sonnax notes that roughly half of the RE5R05A cores its engineers see have water damage from failed radiator coolers. Our RE5R05A service guide for Pathfinder, Armada and QX56 walks through reading the fluid, checking the level and what each finding means.
The listing covers the RE5R05A (also seen as A5SR1) across the rear-drive Nissan and Infiniti range: 2004-2015 Titan 5.6L, 2005-2015 Armada, 2005-2015 Frontier 2.5L and 4.0L, 2005-2015 Xterra 4.0L, 2005-2012 Pathfinder, 2012-2015 NV1500, NV2500 and NV3500, the 350Z with the automatic, and Infiniti EX35, FX35, FX45, G35, G37, M35, M45, Q45 and QX56. The transmission first appeared in the 2002 Q45, and Nissan made running changes over its long production. Some models changed transmissions partway through a generation, and a few changed pans mid-run. Before you order, compare the pan outline and bolt count with the 22-bolt gasket in the photos. If you are not sure, send us your year and VIN and we will confirm it. You can browse every part we carry for this unit on the RE5R05A parts page.
If the magnet shows heavy wear, plan the next step before the truck goes back in service. A replacement RE5R05A pump fixes a scored pump that was starved for oil. If the shift complaint continues with clean fluid, look at the RE5R05A solenoid kit or a replacement valve body.
| Fits transmission | Nissan/Infiniti RE5R05A 5-speed automatic (A5SR1) |
| Includes | 1 pan/pickup filter, 1 pan gasket |
| Pan gasket | 22-bolt |
| Replaces OE | 31728-97X00 (B-327, JT510, 46240-4C000, 15513, 15538) |
| Fitment | 350Z, Armada, Frontier, Xterra, Titan, Pathfinder, NV1500/2500/3500, EX35, FX35/45, G35, G37, M35, M45, Q45, QX56 |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for the RE5R05A five-speed in the 2004-2015 Titan and 2005-2015 Armada, along with the Frontier, Xterra, Pathfinder and several Infiniti models. Count the bolts on your pan and compare its shape with the 22-bolt gasket in the photos. If you want us to check, send your year and VIN.
Nissan specifies Matic S ATF for the RE5R05A, and the owner's manual lists Matic J as the approved alternative. Do not top off with a universal or multi-vehicle fluid. Set the level at operating temperature.
Only when a restricted filter was starving the pump. If the fluid is burnt and the magnet is covered in friction material, the clutches are already worn, and the filter service is just the first step. Clean fluid with a harsh shift usually means a valve body or solenoid fault.
No. That means the radiator cooler has failed and coolant has mixed into the transmission. Replace or bypass the cooler, flush the system, and expect to inspect or rebuild the clutch packs. The filter and gasket go in as part of that repair, not in place of it.
Change it any time the pan comes off, and whenever you change the fluid on a truck that tows or has unknown history. A pan drop only replaces part of the fluid, so a second drain and fill afterward refreshes more of it.
No. Fit the gasket dry on clean, flat surfaces and tighten the bolts evenly to spec. Sealant can squeeze into the pan and end up on the new filter.
