Premium Guard Air Filter PA5418 | Fits 2010-2002 Ford Explorer, 2010-2007 Explorer Sport Trac, 2005-2003 Lincoln Aviator, and 2010-2002 Mercury Mountaineer Superior Engine Protection and Enhanced Engine Performance with up to 99% cleaner air flowing into the engine. High capacity air filter media for removal of dust and other debris while providing high airflow, to ensure optimal engine performance. Compatible with Ford Explorer, Explorer Sport Trac, Lincoln Aviator, and Mercury Mountaineer. Precisely designed, engineered, and tested to meet and exceed all OE air filter requirements. Replaces 6L2Z-9601-A, CA9332, AF1695, A25418, and 42484 air filters. Always check fitment using the Vehicle Filter. Premium Guard Air Filters are a perfect fit inside the housing as per the OE design. 2002-2010 Ford Explorer 4.0L 2002-2005 Ford Explorer 4.6L 2007-2010 Ford Explorer Sport Trac 4.0L 2003-2005 Lincoln Aviator 4.6L 2002-2010 Mercury Mountaineer 4.0L 2002-2005 Mercury Mountaineer 4.6L <u>Engine Light Comes On</u>: Many cars are equipped with an airflow sensor that sets off the check engine light. <u>Visual Inspection</u>: Premium Guard automotive air filters are white so you can see if they&#039;re dirty. Check the outside and inner layers of the filter paper for dust and debris. <u>Reduced Fuel Economy</u>: When engines get less oxygen, they consume more fuel. If you notice fuel economy going down, you may need to replace the air filter. <u>Engine Misfiring</u>: Restricted air supply results in unburnt fuel exiting the engine as soot residue. Soot accumulates on the spark plugs, which can cause the engine to misfire. <u>Reduced Horsepower</u>: Replacing the air filter can improve acceleration or horsepower. If your car doesnt respond well or jerks when you step on the accelerator, the engine may not be receiving the air it needs to perform. <u>Black Sooty Smoke or Flames</u>: Poor air supply can result in fuel not burning completely during the combustion cycle. Unburnt fuel exits the car through the exhaust pipe, possibly resulting in smoke or flames. Driving conditions Dusty roads Humid climates Congested roads and heavy-traffic areas