RE5R05A Input Drum 2003-2008, used and ready to install. Fits the RE5R05A. Ships fast from the USA.
If your 2003-2008 Nissan or Infiniti came back from the shop with a cracked or scored input drum on the bench, or you found shiny metal in the pan along with a slip that shows up in the same gears every time, this is the piece you are looking for. This listing is a used, original-equipment RE5R05A input drum for the 2003-2008 production years, priced well below a new drum. The photo shows the drum as a complete assembly with the gear section still attached below it, so you can compare it side by side with the one you pulled. It is covered by a 1-year warranty.
The RE5R05A is the Jatco five-speed rear-drive automatic that Nissan and Infiniti put behind both their V6 and V8 engines. Like every drum in the unit, the input drum is a rotating housing that holds a clutch pack and the piston that squeezes it. Fluid is fed into the drum through sealing rings that ride on a stationary support; when the solenoid for that clutch opens, pressure pushes the piston and locks the frictions to the steels. The drum has to stay perfectly round, the piston bore has to stay smooth, and the bushing has to keep it centered, or the pressure bleeds off before it ever reaches the plates. A drum with a cracked spline, a worn bushing or a scored bore will slip even with brand-new frictions installed, which is why rebuilders replace the drum and not just the plates.
Before you buy any hard part, look at the fluid. Many 2005-2010 Nissan trucks lose the transmission cooler inside the radiator, and coolant in the fluid attacks clutch bonding and bushings everywhere in the unit. If the fluid is milky, the drum is only one item on a much longer list, and the cooler has to be replaced or bypassed first. With the unit apart, clean the drum and inspect the splines for cracks, check the bushing for wear, and air check the piston at regulated pressure. Do not stop at the drum: an ATRA article in Gears Magazine described a RE5R05A with a harsh 1-2 shift that was finally traced to sealing ring lands worn to 0.018 inch of clearance against a 0.005 inch spec. A drum that will not hold air can be the drum, or it can be the support it rides on. Our RE5R05A service guide walks through the fluid check and the common failure points.
This drum is listed for RE5R05A transmissions built for the 2003-2008 model years. That window covers early Infiniti rear-drive applications and the first generation of the Frontier, Xterra, Pathfinder, Titan, Armada and QX56. The RE5R05A was revised during its run, and Sonnax notes three different valve body designs alone, so internal parts were not always identical across every year and engine. Lay your old drum next to our photo and match the spline count, the gear section and any casting marks before you order, or send us your year and VIN and we will confirm it fits. If your build is outside this window, compare the 2003-2006 RE5R05A input drum and the 2003 input drum, or browse every part in the RE5R05A collection.
Because this is a used part, treat it as a core that needs a proper prep. Clean it thoroughly, remove the clutch pack, and install fresh frictions, steels and piston seals rather than reusing what came in it. Check the bushing and the sealing ring surfaces, air check the piston before the drum goes in the case, and set the clutch clearance to the factory figure with a feeler gauge. Lube the new sealing rings with assembly gel so they do not cut on installation. A RE5R05A master rebuild kit supplies the seals and gaskets for the rest of the job, and a filter and pan gasket kit keeps debris from the old drum out of the new valve body. Refill with Nissan Matic-S ATF, then road test until the fluid reaches full operating temperature, since some RE5R05A pressure problems only appear once the fluid is hot.
| Fits | RE5R05A 2003-2008 |
| Part type | Input Drum |
| Condition | Used |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for 2003-2008 RE5R05A transmissions, which includes the 2006 Titan. Because the unit changed during production, compare your old drum with the photo or send us your year and VIN so we can confirm the match before it ships.
No. This is a used OEM drum assembly as shown in the photo. Plan to install new frictions, steels and piston seals from a rebuild kit rather than reusing the plates inside it.
Look for cracked splines, a worn bushing, a scored piston bore or a drum that will not hold regulated air. If new frictions keep burning in the same pack, the drum or the sealing rings that feed it are leaking pressure.
Use Nissan Matic-S ATF, the fluid Nissan specifies for these trucks. If the old fluid was milky from a failed radiator cooler, flush the cooler lines and replace or bypass the cooler before refilling.
After a rebuild, drive the vehicle until the fluid is fully warm and let the transmission adapt. If shifts stay harsh or soft, have a Nissan-capable scan tool reset the adaptives, and check for leaking sealing rings if a single shift stays wrong.
