Genuine OEM Nissan Input Shaft 3rd Gear, part number 3226000QAB. This is a critical internal component of the transmission responsible for engaging third gear. It is precision-engineered to mesh correctly with other gear sets, ensuring smooth and reliable shifting. The shaft's dimensions and material hardness are crucial for withstanding the forces involved in power transmission. Genuine OEM parts ensure the exact tolerances and material specifications required for long-term transmission performance and reliability.