Function: P556745 Fuel Filter effectively remove solid impurities and contaminants in the fuel (rust, pieces of paint, dirt, etc.), to avoid blockage of the fuel system increase engine power. For John Deere 4050, 4055, 4240S, 4250, 4255, 4350, 4400, 4420,4425, 4450, 4455, 4555, 4560, 4650, 4755, 4760, 4850, 4955, 4960.