New key fob question

[Tano]

So when I bought my truck it had no key fob. I saw them on amazon for $30 but apparently there are two different p/n's and you gotta get the right one for your truck so how do I know which to get?

Thanks,
Tano

 

[chevyburnout1]

My best guess would be to call a dealership and have them look it up under your VIN.