Valve Cover Gasket Set for 2004-2006 Ford F-150 F-250 F-350 Expedition Explorer Mustang Lincoln Navigator Mark LT 4.6L 5.4L Engine Replace 3L3Z-6584-EA 3L3Z-6584-DB VS50664R

Four symptoms of bad valve cover gasket Burning oil smell Valve cover is dirty and leaking oil Engine is low on oil Engine is running rough and causing misfires Sometimes when oil leaks from a valve cover gasket it leaks all the way down to the spark plug galley and eventually seeps inside the spark plug tubes. This will cause a misfire or reduce engine performance. It can also cause a fire under your hood if it goes unrepaired. One of the most important gaskets that keep cylinder head hardware protected from the elements and keeps oil from escaping from your motor is the valve cover gasket. Most valve cover gaskets are made from plastic or cork and are used as a seal between the cylinder head and the valve cover itself. Feature: Constructed of premium materials, adopted advanced process manufacturing technology and precise alignment technology allow the gasket to be firmly attached to the cover and accurately mounted to the port. Ensures that they can retain their shape and resilience during extreme temperature swings, and maintain their sealing properties under constant vibration It securely seals the gasket set, effectively preventing motor oil from leaking out as it travels around the camshafts, rockers and valves and preventing other harmful substances from entering the valve train. Strictly manufactured with top materials and professionally tested, meets or exceeds strict OE standards (with regard to quality, assembly and function), and ensures worry-free and consistent sealing performance. Manufacturer Part Number: 3L3Z-6584-EA 3L3Z-6584-DB VS50664R Vehicle Type Compatibility: 2004 2005 2006 4.6L 5.4L Ford Triton engine, including Ford F-150, F-250 Super Duty, F-350 Super Duty, Expedition, Explorer, Mustang, Lincoln Navigator, Mark LT, Mercury Mountaineer