ECOGARD XA10004 Premium Engine Air Filter Fits 2013-2018 Acura RDX COMPATIBLE with 2013-2018 Acura RDX. 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 CA11413 Purolator A36276 WIX 49211 OE 17220-R8A-A01. SPECIFICALLY ENGINEERED AND TESTED for Acura OE (original equipment) engine air filter's fit, form, and function.