Mitsubishi F421 Input Speed Sensor OEM# 42620-39200
As you can see in the picture, this is a OEM component.
BorgWarner Morse TEC chain systems are at the heart of today's most popular front-, four-, and all-wheel drive drivetrains. Hy-Vo® and Morse Gemini® set the benchmark for quiet, efficient, durable input and output systems in transmissions and transfer cases for automotive, truck, construction, and off-road applications around the world