A part can't be OEM with a Toyota P/N and also be "aftermarket" at the same time. OEM parts can be made by anyone, but if it's sold as a branded Toyota part with a Toyota P/N, then it's OEM, the same part that the dealership would sell. Parts that are "equivalent to" and "meet OEM" specs are simply aftermarket parts.I just ordered an OEM 90915-YZZN1 filter from Oreilly auto parts. I called and they said it’s after market…
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