This is a Toyota OEM 2jzgte rear main seal. We recommend replacing this seal whenever doing a clutch replacement or JZ engine swap. This seal is somewhat more labor intensive to replace as it requires the transmission and engine to be separated so we only use Toyota OEM rear main seals because they are the best quality. This rear main seal will work with all 2jz/1jz engines including non-turbo and VVT-i variants. Be weary of cheaper, inferior quality seals that are sometimes marketed as OEM, as they have been known to leak!