[MaineSubadoox3]

Not sure if this help, used a kit like this from NAPA to fix my 08 Forester.

Idler Pulley Adjuster Bolt Kit

 

[MaineSubadoox3]

You are correct, the kit I purchased was for a Toyota, however, all I can say is it’s working. Sometimes one should not over think it, many parts on Subarus have Mazda written on them. Respectfully