Maybe you can help me out. I changed my oil last night (I'm at 15k). I went ahead and let the dealer do my 10k service because it's free, figured I'd give them a chance, etc.
Long story short, the used filter I pulled out was a 15613-YZZA1 (AKA 04152-YZZA1). Diameter is the same, but it is significantly shorter than the 15613-YZZA2 (AKA 04152-YZZA5) I've been running (which I have a box of in the garage).
Seems as though the A1 is for the 2GR v6 motors in the Rav4/Sienna and some 2A 4cyl motors. I can't imagine they are interchangeable...are they?
Just wanted to make sure I have the facts before sending an email to the service manager.
Also, here is the link to the Toyota filter application chart I've been using:
https://www.toyota.com/toyota-owners...ters2015_final[1].pdf