Could someone please tell me what BI and BL mean for Mazda. I have to purchase two front wheel wheel bearings and it’s a 2013 model Mazda 3. But I’m not sure weather that BL and BI is anything important when ordering them🙏🏻Julie
These are different "generations" (Mazda's term) of the car. BK was manufactured from 2003-09, BL 2009-13, BM 2013-16, BN 2016-present.
I have no idea what "BI" would be, unless it's a typo. Anything earlier than the BK wasn't a "Mazda 3".
The BM was actually the "2014 model" even though it was launched in mid 2013, so the OP's "2013 model" should be a BL.