Parts for your 2012 Mazda 6-Oil seals

2012 Mazda 6 oil seals — what they do and when to replace them

Oil seals are absolutely used on the 2012 Mazda 6. Technical documentation such as the Mazda6 (GH, 2008–2012) Workshop Manual lists multiple seals including the front and rear crankshaft oil seals, camshaft oil seals, and transaxle/differential side oil seals (sections: Engine L5‑VE “Crankshaft Oil Seal Replacement” and “Camshaft Oil Seal Replacement”