Nissan Part No.13021-42L11 Ensure your engine is working at its peak by using a Nissan genuine crankshaft sprocket. Whether you're making a repair or rebuilding an entire engine, this sprocket guarantees perfect fitment. Compatible with the following engines: NissanRB20E Nissan RB20DE NissanRB20DET NissanRB25DE NissanRB25DET Nissan RB30E Nissan RB30ET