To be specific, in starting the vehicles Mercury Cougar has some specific Spark Plug Wire that is used as the link between ignition coil and spark plugs for the electrical supply. They are also referred to as high tension leads or HT leads they are carefully made with heat resistant insulating to avoid arcing and long durability. Both spark plug wires come in accurate cut length and come with a metal terminal for properly connecting to the spark plugs. Some advanced technologies include resistive conductor, inductor coil, and other anti-interference technologies. A few of the optimal spark plug wires have a built-in brass terminal which offers a way of reducing corrosion. Some engines had a coil wire, newer models came with coil packs or individual ignition coils that sits right on spark plugs, eliminating wires running between spark plugs an coils. It is important therefore that these wires are well maintained and placed appropriately so as to produce the optimal of the engine and at the same time have the durability of the engine enhanced.
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