This is a genuine Nissan RB25 crank pulley harmonic balancer for the Skyline R33 model. It is an OE/OEM part number A2303-75T00. The brand is Nissan and the manufacturer part number is A2303-75T00. This part is specifically designed for engines and engine parts in the car and truck parts and accessories category on eBay Motors. It is perfect for anyone in search of a reliable crankshaft for their Nissan Skyline R33 model.