I need my Z's TCM(Transmission Control Module) part number.
Nissan have valve body assay included TCM only.
They don't have TCM separately.
I have to replace TCM.
I'm looking for used one.
So I need TCM's part number

I got some of the part number from Nissan Consumer
Center.

"31705ce802"

They handle valve body assay only.
Probably, It is whole assay's part number.
Please let me know What TCM fit to my car, Part number and any else information.

2004 Nissan 350z Convertible Touring A/T

 

As I mentioned in your previous thread, the TCM and valve body are available only as one part from the Nissan supplier to Nissan. That is the only way it can be purchased new. There is no official service part number for the TCM. You have a couple options:
1. Buy new TCM/valve body from Nissan
2. Find used TCM/valve body for your car

Your local dealer can use their parts system to tell you your original part number TCM/valve body, as well as the latest level part number that can be used for your car. Whether they will provide all of this information or not will depend on who you are dealing with behind the parts counter.