Genuine OEM Mazda Rear Wheel Reduction Gearbox, part number FZ211958XD. This gearbox is a key component of the drivetrain, responsible for transferring power to the rear wheels and providing the necessary gear reduction. It ensures smooth and efficient power delivery. The precise engineering of OEM parts guarantees optimal gear meshing and quiet operation. Genuine OEM parts are manufactured to exact specifications, ensuring the reliability and performance of your vehicle's drivetrain.