Pto Gear, an aftermarket component, is compatible with OEM part number R42014. This part is designed for use in John Deere tractor models 4050, 4320, 4230, 4430, 4250, 4055, 3020, 4440, 4255, 4450, 4040, 4240, 4020, 4455, 2510, 4030, 2840, 3120, 4000, 3130, and 3030. Always verify part number and equipment model before ordering to ensure proper fit.