Cuao

I need to replace the passenger rear bearing hub assembly on my 2004 Lexus RX 330 AWD. The car makes a loud hum as you increase speed and continues at speed. There are several manufacturers of the replacement assembly. Some start at $30 and go all the way up to $150. In my research I found that NSK brand is OEM. But here is my question. NSK offers two assemblies. One is around $85. The other one is around $110 but comes with a built in sensor of some sort. Can anyone tell me which one I need? Any help will be much appreciated!! Thank you in advance.

I am looking to replace the rear wheel hub assembly on my 2004 RX330 AWD. There are several assemblies available. NSK has one with the built in sensor ($110) and one without the sensor ($85). My question is which one does the car take?