I have a 2001 LS430 that needs a driver side seat control module. Upon looking through several lexus parts website, there is a discrepancy on part numbers being for driver or pass side.
I have two numbers
89710-50110
89710-50120
Part is discontinued from Lexus.
Can someone tell me for sure which number is for the drivers side

 

Looks like the -50110 is for the drivers seat. Perhaps a call to a local dealer to verify? From what I find on the internet, -50110 is what you need.

Pull the door panel and see what part number is on the Module. I believe it's mounted in the door.