Source for TPMS Replacements? 2020 CX-9

I found a listing for compatible Mazda OEM TPMS sensors on eBay, P/N BBM2-37-140A. The set was $50 for all four. They were used and came off of a different Mazda, but they've been working great for the last 5-6 years.

The actual OEM P/N for the Mazda CX-9 TPMS sensors is BBM2-37-140B. Autel makes TPMS sensors that will work, but I think you have to program them to the car using a special tool sold by Autel. If you buy the TPMS sensors from a tire shop, they'll be able to program them to the car so you don't have to buy the tool yourself.
 
Thanks for the response sm1ke. So we can use either A or B sensors on my 2020 CX9? No programming needed? If I replace with either of these part numbers, all I need to do is drive around for a bit and it should work with my car?
 
Thanks for the response sm1ke. So we can use either A or B sensors on my 2020 CX9? No programming needed? If I replace with either of these part numbers, all I need to do is drive around for a bit and it should work with my car?

In my experience, yes, that's correct. You just have to get them installed and then drive around with them for a bit.

Worst case scenario, you stop by a Mazda dealership for them to program the TPMS sensors to your car, but I don't recall ever having to do that.
 

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