![]() Due to this short lifespan, most copper spark plugs need to be changed every 20,000 miles. With a full line of spark plugs, coils, and wire sets, NGK covers 95 of import and domestic vehicles on the market. Over time, this wear leads to the spark plugs fouling and not working as efficiently as they did when they were new. The nickel-alloy outer material used in the copper spark plug isn’t as hard as other metals so it wears down more quickly with the high pressure and heat created in the cylinder of the engine. ![]() Copper spark plugs are also often used in older (pre-1980s) vehicles with a distributor-based ignition system. They are often installed as original equipment in turbocharged engines and engines with higher compression ratios. A standard spark plug typically features a nickel-alloy outer material fused to the copper-core electrodes.Ĭopper spark plugs run cooler and provide more power in performance driving situations. While almost all spark plugs feature a copper core, many people refer to the common spark plug as a “copper” spark plug. The copper spark plug is the most common and cheapest plug available. Please refer to the vehicle model compatibility table when selecting. Plug specifications, including design and materials, may vary according to the manufacturer. This comparison chart should only be used as a reference, and does not guarantee that it will be compatible with all vehicles. NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. What are the advantages and disadvantages of the copper spark plug? Quickly find CHAMPION to NGK spark plug cross references. These metals also help extend the interval between spark plug changes and decrease the misfire rate. The use of metals like nickel alloy, platinum and iridium reduces the wear caused by high voltage sparks. This is the vital spark that starts the combustion process. The metal channels the high voltage from the spark plug wire through the spark plug so it can spark when it goes across the small gap between the central electrode and the side electrode. Manufacturers use precious and other metals in the center and side electrodes of a spark plug. ASME B18.2.What is the purpose of metal in a spark plug? Spark Plug Gap (inches) Champion: NGK: Mega-Fire: Denso: BOSCH: Husqvarna 2100CDW : 4.00 × 0.25 × 4.00 : 0.
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