I want to do a transmission fluid change on our 2019 RAV4 with the 8 speed. I already did it on my 2015 Camry with the 6 speed on these sealed units. Anyway, I cannot find the part number for the fill and drain plug crush washers on the 8 speed. The dealer won't even tell me because they said I shouldn't be doing it myself because it's too complicated (they don't know me). I never had a problem finding them online for the Camry. Has anyone done this on an 8 speed and know the part numbers? Thanks!