All components of your Mercury vehicle will ultimately give in to the various forces and elements that these components encounter. The plastic parts located in your vehicle's ignition, engine and exhaust systems will soon surrender to the heat and vibration in which these parts are constantly exposed to. One of these parts that often experience too much heat and vibration is the distributor cap. Your vehicle's manual will actually indicate the necessary information as to when you should replace your Mercury distributor cap. In most cases, the engine itself will show signs of a defective and malfunctioning distributor. To monitor the problem in your Mercury distributor cap, visual inspection is the best way to do it. Check if the cap and the terminal towers begin to show cracks. Closely examine the cap and check the presence of grey carbon tracks. Remove the cap and check for carbon tracks inside the distributor as well. You can also look for signs of wear and tear which includes carbon deposits, worn-out terminals, and cracks. The insides of your distributor cap should be all the time clean. Otherwise, if the cap shows signs of dirt deposits, this means that the sparks have been arcing from point to point within the cap. Now, if your Mercury distributor cap is already showing signs of a possible damage, immediate replacement should be done. Replacement for your Mercury distributor cap can be purchased here in our site. Visit our online catalog for the detailed list of premium grade Mercury distributor caps and other replacement parts for your Mercury vehicle. Scouting for high quality Mercury distributor cap from one store to another is no longer necessary. You can browse our site from the comforts of your home. You can freely select from the wide selection of products we cater.