ECOGARD XA5775 Premium Engine Air Filter Fits 2008-2011 Ford Focus COMPATIBLE with 2008-2011 Ford Focus. IMPROVE PERFORMANCE by changing your vehicle's air filter at least every 12,000 miles (or as recommended in your car owner's manual); to ensure your vehicle's engine has the clean and efficient air flow it needs for fast acceleration and long term power. AVOID INCREASED ENGINE WEAR caused by dirty air intake filters that may allow damaging particles to get into the engine. FACTORY FIT FOR EASY INSTALLATION. Replaces: FRAM CA10488 Purolator A35775 WIX 49890 Motorcraft FA1890 OE 8S4Z-9601A. SPECIFICALLY ENGINEERED AND TESTED for Ford OE (original equipment) engine air filter's fit, form, and function.