This Radiator Cap is compatible with OEM part numbers RE24897, AR76619, and RE39103. It fits John Deere tractor models 4050, 4640, 4250, 4055, 4440, 4850, 4255, 4450, 4040, 4240, 4455, 4840, and 4650. Always verify part number and equipment model before ordering to ensure proper fit.
