Ford Fuel Injector BL3Z-9F593-A BL3Z-9F593-B CM5211 FJ1138

Ford injector BL3Z-9F593-A/BL3Z-9F593-B/CM5211/FJ1138 direct replacement of original numbers; highly universal; core function is precise control of fuel injection to ensure engine combustion efficiency. Fits Ford models after 2000, such as Focus, Mondeo; after installation, issues like rough idle, weak acceleration, and high fuel consumption are resolved. If cold-start difficulty, black smoke from exhaust, or engine vibration appears, injector wear is likely; replace with professional technician.