General description 1Pair Transmission Sensors Y3/9B4 Y3/9B5 are designed for use with the 722.8 Control Unit, specifically for A-Class (W169) and B-Class (W245) vehicles equipped with 722.8 CVT Transmission models A150, A160, A170, A180, A200, B150, B170, B180, and B200. These sensors are essential for diagnosing issues related to the rpm signal and gear ratio in the continuously variable automatic transmission (CVT). Technical specifications Colour: Black Material: ABS Part Numbers: A 1695451032, A 1695451062, A 0034462410, A 1693700406, A 1693700506, A 1693700606, A 1693700706, A 1693700806, A 1693701006, A 1693701106 Measurement allowed error: +/- 1-3cm Usage Helps diagnose error codes: P 0722, P 0730, P 0793, P 0896 related to the CVT system. Other information Package includes: 2x Transmission Sensors Note: Light and different displays may cause the color of the item in the picture to differ slightly from the actual product.