Used Input Gear 1990–2019

The input gear is the first point of contact between the engine and the rest of the gearbox. It sits at the front of the transmission and meshes with the clutch or torque converter output to transfer engine torque into the gear stack. When it wears out, you feel it. Chipped or worn teeth cause grinding noises and difficulty getting into gear. On high-mileage vehicles and anything used for towing, input gear wear is a natural result of the load those gears carry. Leave it alone long enough and metal particles contaminate the transmission fluid and start damaging everything else inside. Replacing the input gear early prevents a cascade of failures that can write off an otherwise serviceable transmission. There's a real cost difference between swapping a gear and rebuilding an entire box. Redline carries 12 Input Gear options from 4 sellers, covering 8 makes including Chevrolet, Honda, Lexus, Infiniti, Mercedes Benz. Use the year, make, and model filter to confirm tooth count and material spec before buying. OEM parts match the original, which matters for proper mesh with the mating gears. Used OEM input gears cost far less than new dealer pricing and deliver the same fit.