Before getting into the differences between the types of spark plug you should keep in mind two critical points that define the functionality of spark plug. This means you have a decision to make when choosing spark plugs for your car. ACDelco 41-993 Professional Iridium Spark Plug. Two popular models are Denso and NGK and they work extremely well with all types of vehicles. Convert one spark plug brand to another. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. Learn about these small, yet reliable power sources. Copper spark plug’s core is made up of full copper but the center electrode is made of nickel alloy. Now you will see four different types of spark plugs in the market that are available for you to purchase. The first type of spark plug that you will find in the market and the most inexpensive of them all will be copper spark plug. Now to maintain the strength of spark between these two electrodes and overall spark plug you should keep in mind that the sharp points must be strong enough to stay sharpened for a long time. Plug Design. compare NGK spark plugs with Champion, AC, Denso, Bosch, KLG and Auto-lite Spark plug … A standard spark plug typically features a nickel-alloy outer material fused to the copper-core electrodes. Spark plugs with a hotter heat range will burn off carbon deposits more easily than a colder plug. “As an example, an Autolite copper 105 versus an XP Iridium 105 will have identical ceramic temperatures and the carbon burn off will be the same,” says Reeves. Platinum spark plugs are also slightly hotter, preventing fouling. See More Reviews. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. Wondering how spark plugs get engine combustion going? There are spark plugs that are “hotter” or “cooler” these spark plugs are suggested by the drivers to their fellow drivers but in reality they are best suited for customized engines and the drivers have done a little experimenting of their own to find out which spark plug performs better with their customizations to the engine. Knowing which plug to use in a particular engine can be difficult, as the plugs are very similar. Spark plugs all consist of a top, ceramic and metal terminal that attaches to either a spark plug wire or coil boot. This means that the spark on one plug travels from the center electrode to the side electrode. The side electrode of the iridium spark plugs tend to “quench ” the flame due to being the colder side of the spark plug. Platinum plugs use a platinum disc that is welded to the end of the center electrode, which allows the plug to last longer than a copper plug, retaining its edge better, which means better conductivity. These are the question we are going to discuss in this publication and we hope this useful piece of information will help you to choose a better spark plug for your vehicle. Car manufacturers which have installed coil up ignition system in their cars mostly recommend iridium or iridium/platinum spark plugs to be installed in their cars. Sensor Parts The world’s largest OE oxygen sensor manufacturer now offers a full line of premium technical sensors for the aftermarket, featuring more than 6,800 SKUs. Every engine type has it’s own timing in the combustion process. Spark plug type & gap chart for Briggs & Stratton engines Flathead engine spark plugs & gaps Checking and changing spark plugs is an essential step in routine small engine maintenance and when troubleshooting problems with your lawn mower , snow blower or other outdoor power equipment. If your car’s owner manual specifies that you should only use iridium spark plus when replacing the old ones then don’t downgrade your spark plugs to single platinum, dual platinum or copper spark plugs because they will not work well with your car’s engine and will reduce the overall performance of the engine. Let's find out. Always disconnect the negative battery cable before servicing an electrical application on the vehicle to protect its electrical circuits in the event that a wire is accidentally pierced or grounded. On the exhaust stroke the spark returns from side electrode’s platinum plate to center electrode’s platinum plate, since the combustion process is going through exhaust stroke, spark is wasted and ignites nothing. Standard Spark Plug BPZ8HS-10 (150) $8.99. Double Platinum Spark Plugs. The core of the plug is generally made of copper, with a center electrode. The spark between these two electrodes is from the sharpest point of both electrodes. Learn about 12 great tools that can help any DIYer up their game. The rest of the body of the spark plug consists of a threaded portion that screws into the engine’s cylinder head, and a side electrode. This is how the double platinum spark plugs perform in certain Waste Spark DIS. The different types of spark plugs can seem overwhelming at first, but the simple way to find out what kind of spark plug you need is by checking your owner’s manual. If your manual specifies iridium spark plugs, best practice is to absorb the extra cost associated with this rarer metal for best performance. Laser Iridium Spark Plug IZFR6J (17) $16.99. On the other plug, the spark travels from the side electrode to the center electrode. Check out this article! Iridium is also famous for continuing to fire under extreme conditions. The only use of copper spark plugs in modern cars is with the high performance engines which are designed and manufactured around copper spark plugs. Copyright © 2017 - 2020. Common thread (nut) sizes in Europe are 10 mm (16 mm), 14 mm (21 mm; sometimes, 16 mm), and 18 mm (24 mm, sometimes, 21 mm). Since the platinum plate is stronger than copper so it lasts longer for around 100,000 miles. Your lawn mower needs regular maintenance just like your car does. To make this even more complicated, one spark plug attached to each coil is positive polarity, while one is reverse polarity. Dual platinum spark plugs have two platinum plates one on center electrode and one on the side electrode, both hold their sharp ends very well due to strong platinum material being used and they don’t wear out quickly. There are two basic types of spark plugs on the market: your basic copper-tipped plugs, which can last up to 30,000 miles and long-life platinum and iridium-tipped plugs which have a life expectancy of up to 100,000 miles. Topbestreviewss.com. So it’s not the best performing spark plug when it is compared with other spark plugs. Please view the application guide below. Spark plugs are a key component to your engine and come in three basic varieties: copper, platinum, and Iridium. The perfect match for petrol engines. You can refer to the owner’s manual or guide provided by the car manufacturer to know which spark plug they have suggested to use in that specific vehicle. Double Iridium Spark Plugs are designed to deliver the firepower necessary under any driving conditions, especially extreme heat or continual high-speeds, and can provide up to 4 times the normal life of service compared to a standard copper spark plug. Choose your next Champion from the range of plugs … There are a couple of spark plug models in the market. Iridium is harder than platinum, and in most cases, iridium spark plugs last about 25 percent longer than comparable platinum spark plugs. Iridium spark plugs are the most expensive and have a … This is one of the most asked question related to spark plugs and the answer to this question is fairly simple. To counter this quenching U or V shaped channeling is created on the receiving side of the spark so that the spark channeling through the side electrode will allow the flame to grow quickly as well as provide a larger channeling area. We hope you find this publication useful. Because of copper’s high conductivity, some high performance vehicles require them. Now the iridium spark plugs, iridium is a stronger material than platinum so naturally iridium spark plugs are stronger than platinum ones and they last up to 25 percent longer on average. The copper spark plug is the most common and cheapest plug available. It’s important to understand that manufacturers recommendations on spark plugs is vitally important. Spark plugs are specified by size, either thread or nut (often referred to as Euro), sealing type (taper or crush washer), and spark gap. The single platinum spark plug is based on the copper spark plugs but the difference between the two is the platinum plate welded on top of the center electrode. ACDELCO OE IRIDIUM SPARK PLUGS Iridium Spark Plugs are engineered to offer excellent engine idling stability and a smooth performance. Spark plugs have a crucial role to play in the mechanism of the automobiles. You cannot use copper or single platinum spark plugs in these systems because they are not designed for this type of ignition system. Typically, the type of vehicle you drive will play a big role in determining the spark plug that’s an ideal fit. Spark Plug Cross Ref. While almost all spark plugs feature a copper core, many people refer to the common spark plug as a “copper” spark plug. Now a thing has to be noted here which is the diameter of the center electrode, as we have previously said that the larger the diameter of the center electrode the higher voltage it is required to produce a spark. The single platinum spark plug is based on the copper spark plugs but the difference between the two is the platinum plate welded on top of the center electrode. Learn typical price ranges and what can make change that cost. Learn how to switch out your lawn mower's spark plugs. NGK 6619 Iridium Spark Plugs LFR6AIX. NOTE: Cross references are provided as a guide only. You need the metal in the spark plug to meet your vehicle’s needs, so stick with your owner’s manual recommendation for the best performance. The smaller center electrode is not just there for manufacturer to save money but also it is the most efficient performer of all the spark plugs. Downgrading to single plate platinum or copper spark plugs is not a very good option. 2019 – Buyer’s Guide. This is the main reason manufacturers suggest spark plugs for the engine to it’s users because they have tested that specific spark plug and found it to be the best in terms of performance. Out of these four types, three are widely used, which are: Now which one should you choose between these spark plugs? While the motor company only recommends use of their original equipment Harley brand spark plugs, the other brands often exceed original specification and will not void your warranty. Autolite HT15 Platinum High Thread Spark Plug. The center electrode’s diameter determines the current needed to generate the spark. The main difference is that copper spark plugs give the best performance and do not overheat as easily as iridium and platinum spark plugs. Wondering how much it'll cost to take your ride in for a tune-up? The harder, platinum material lasted longer, as manufacturers made a push to develop spark plugs and antifreeze that lasted upwards of 80-100K miles. Iridium plugs usually feature the smallest diameter center, which can increase efficiency by reducing voltage needed to create a spark. What this means is that instead of the center electrode wearing as it does in traditional ignition systems, now, the side electrode wears on the plug that is reversed-polarity! Champion spark plugs are original equipment on many outboard and inboard motors and are excellent replacements for everyday engine maintenance. Platinum spark plug tip, mainly designed as copper one with a platinum disc welded to the central electrode tip. Some cars do have complex engine design around spark plugs and they are required to be dealt with by a professional. To remedy this shortcoming, Bosch offers the Platinum IR Fusion spark plug. Advice, how-to guides, and car care information featured on AutoZone.com and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. You should always consult the owner’s manual of your vehicle to know which spark plug is recommended by the manufacturer to use in the engine. It’s important to note that DIS “wasted spark” coil systems operate best on Double Platinum Plugs. Do not wear ties or loose clothing when working on your vehicle. The electrodes on the copper and single platinum spark plugs are not designed for reverse spark. Check Latest Price. (C) 1989-2020 AutoZone, Inc. All Rights Reserved, Got feedback for our blog? There are many different types of spark plugs on the market, and the lineup includes choices made with materials ranging from humble copper to pricey platinum. Since platinum is more difficult to destroy than nickel alloy, the shape of the electrode can be preserved up to 30-45 thousand miles of run. To get further into detail about spark plugs and if you want to decide on your own which spark plug to install in your car, we will put forward the differences between different spark plugs so you can make a better decision. The center electrode on copper spark plugs also has the biggest diameter of all the spark plugs i.e. The metal used to coat the electrodes is how different types of spark plugs are known and defined. Where plugs differ though, is in their electrode material. You never forget your first Champion ®.Our spark plugs have been improving engine performance since 1907. Standard Spark Plug LFR6A-11 (150) $7.49. Platinum plugs became popular in the late-80’s, when ignition systems began to migrate from distributor-based systems, to coil pack or DIS (wasted spark) systems, which demanded a plug that could withstand the higher-energy, more demanding system. These engines are the only exception and in this scenario copper spark plugs are known to be high performance spark plugs. The diameter of the center electrode on the iridium spark plugs is smaller because of iridium being an expensive material and you will see up to .4mm diameter of the center electrode in iridium spark plugs. NGK SPARK PLUGS. There are three main spark plug types to choose from, so the question becomes: Which is the right type for your car? The most important detail in a spark plug is matching your engine’s design. Be sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. The manual will specify the right plugs for your vehicle. NGK SPARK PLUGS. Champion makes a wide range of spark plugs, including the RCJ6Y and the RCJ8Y types. It is for this reason that most racing plugs are non-resistor types. In addition, carbon core breaks down more quickly than other materials so they require relatively frequent replacement. In the early 1990’s, DIS “wasted spark” ignition systems were created, … It is this side electrode and the center electrode that create a “gap” which the spark jumps from. These spark plugs are classified into four types due to the material used in their manufacturing. These points are known as ‘center electrode’ and ‘side electrode’. Platinum spark plugs have a long service life, but low power. Also the running temperature of the platinum plate is higher which is good in terms of preventing carbon buildups overtime. Compare. When analyzing different kinds of spark plugs, it’s important to understand the terminology. Champion Spark Plugs for Johnson Outboard Motors. In doing this, both spark plugs that attach to that single coil pack spark at the exact same time – the difference is that one is firing on the compression stroke, and one is firing on the exhaust stroke of the sister-cylinder, which is referred to as a “wasted spark”. Copper Plus Small Engine Spark Plug 828M, Type QL77JC4 (23) $4.99. … This created the need for a double-platinum plug that has a platinum disc on both the center electrode, and the side electrode. 2.5mm. This whole process is done with the help of spark plug’s spark production and if the spark produced is not sufficient enough or is produced at the wrong time will disturb the performance of the engine. The nickel alloy on the center electrode also presents the sharp end which handles the spark considering the nickel alloy, it is not the strongest material and will wear out fairly quickly leading to spark plug replacement quickly. This Autolite spark plug model is used a lot in Ford … SparkPlugCrossReference.co.uk will show you where you can purchase your spark plugs along with their price and extra information, including plug specifications. If you don’t have an owner’s manual, you can always consult with your local AutoZone store. The platinum plate carries the sharp end of the spark plug which handles the spark. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. Granted, the plug will work, but will wear prematurely and not perform as well. Please note that the tool that you receive after placing an online order may be in a used but operable condition due to the nature of the Loan-A-Tool® program. We again recommend you to consult the owner’s manual and if the manufacturer has recommended dual plated spark plugs you can use dual platinum spark plugs or upgrade to iridium/platinum hybrid spark plugs. Since resistor type plugs actually “resist” some of the spark energy, non-resistor type plugs actually deliver a more powerful spark. ACDELCO OE CONVENTIONAL SPARK PLUGS Why we like it: Although this product may seem … The second factor is the diameter of the center electrode. Spark Plugs . Latest vehicles operating on electronic distributor based ignition systems are better suited to the platinum spark plugs. Because iridium is costly, iridium spark plug manufacturers reduce the diameter of the center electrode to as little as.4mm. The copper spark plugs are widely used in old cars which have low voltage distributor based ignition systems and their use in latest cars equipped with high voltage distributor less ignition system (DIS) and coil on plug ignition systems (COP) is non existent. You may also find the Champion spark plug code helpful. These spark plugs are made with a pure copper core that results in a cooler electrode temperature for maximized durability and fouling resistance. NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCS. Another way to check is to enter your vehicle’s information on AutoZone.com, or by checking with a parts specialist at your local store. So let’s get started with it. At CARiD, we offer these choices in both OEM style replacement and higher-performance configurations. You don’t want to install single platinum plugs if your owner’s manual recommends a double platinum spark plug. If the diameter of the center electrode is larger it will require more current to generate a spark compared to the center electrode having smaller diameter. Iridium spark plugs may offer the best performance outright of any type of spark plug available, but the drawback is the high initial cost. Which is better suited to your car? Copper core spark plugs are the most basic and affordable type of spark plug that you can buy. NGK Spark Plugs has been developing spark plug technology since the 1930s and manufacture plugs for every type of automotive engine, as well as for motorcycles, marine, horticultural, plant and many other applications. However, in most automotive applications, a resistor plug is required for proper vehicle operation. With a full line of spark plugs, coils, and wire sets, NGK covers 95% of import and domestic vehicles on the market. Compare. FREE Loan-A-Tool® program requires returnable deposit. Platinum spark plugs tend to run hotter, preventing fouling and buildup of deposits. If in doubt, refer to your vehicle’s manual, or consult an AutoZone parts specialist for the correct plugs for your vehicle. This point we will discuss below. Types of spark plugs available today are known as "copper", "nickel", "platinum", "double platinum", "iridium", and "silver". Due to differences in design and material, plugs produced by various manufacturers do not have exactly the same heat range. We recommend that if you have stock engines you should consult owner’s manual for the recommendation of spark plugs given by the car manufacturer to choose the right type of spark plug for your car. Copper plugs have been around for over a century and have a solid copper core with a nickel alloy electrode. One end connects to the wire, bringing the spark. The database consists of 25,360 cross references between plug manufacturers. The most common types of spark plug wire cores are as follows: Carbon Core: This is the common OEM-style core used on most modern vehicles. Double Platinum Spark Plugs are specifically designed for a certain ‘waste spark’ distributor ignition system which requires the spark on the spark plug to jump from center electrode platinum plate to the side electrode’s platinum plate on the compression stroke. Nickel is softer than platinum or iridium, and thus has a much shorter life. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes. Since the platinum plate is stronger than copper so it lasts longer for around 100,000 miles. If your car needs new spark plugs and needs replacement you should be able to do it fairly easily and quickly by yourself. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. Harder platinum and iridium cost more, but were designed to last longer, but remember, the best fit is always the one designed for your engine. But, which one will have the edge in a Denso vs NGK comparison? NGK SPARK PLUGS. Copper has high conductivity and low price, but also a shorter lifespan. These used to be the most common plug type on the … Use caution when working with automotive batteries. Tis the season for tune-ups, my friends! This is potentially different from what advertising companies suggest, but the other metals are, unfortunately, not as conductive in general as copper is. Leave it here. We’ll start with one … Recommended replacement intervals vary by … Top 10 Best Spark Plugs Reviewed Mar. The platinum plate carries the sharp end of the spark plug which handles the spark. Both Platinum and Iridium also come in a “double” variant, which will be explained. These plugs are usually best for older, low-voltage systems. Consider the recommended spark plug to use in the car as well. The metal center of spark plugs is exposed only on the ends. Learn the differences between battery chargers, maintainers, and jump starters to find the right solution for your car's battery. Like double platinum spark plugs, double Iridium spark plugs feature two discs of rare metal for increased performance and durability. Although they are one of the smaller parts in a car and one of the inexpensive parts as well, the spark plugs need to be taken care of properly. The first factor you have to keep in mind that the spark produce by the spark plugs is between two points. If you own a car then you will be aware of the importance if spark plugs as they are directly linked to the performance of your car and anything wrong with the spark plug will not be good for your driving experience as well. Keeping in mind these two factors you will be able to get the most out of your spark plug selection. These spark plugs are ideal for most cars that we … We recommend that you consult the owner’s manual and act according to manufacturer’s recommendation on which spark plug to use also don’t downgrade to copper spark plugs if manufacturer has recommended the platinum spark plugs but there is an option to upgrade to double platinum spark plugs. So which kind or spark plugs are there in the market? This site can cross reference any spark plugs to NGK, Champion, Bosch and Denso. Copper spark plugs are generally considered to have the best performance of any spark plug type. Spark plugs are a popular item to change, and it is important to know what a good spark plug vs. a bad one looks like.There are tons of different types of spark plugs (iridium, platinum, standard, pre-gapped, 4 grounded etc.,) but there still are some telltale visual signs that tell you of a bad spark plug (or a poorly running cylinder). Huge database covering >100 different brands and thousands of spark plugs. In the early 1990’s, DIS “wasted spark” ignition systems were created, which essentially means that one coil pack controls the firing of two spark plugs in the system. Harder than platinum, Iridium plugs came on the market in the mid-2000’s as coil-on-plug systems began to get more popular. Compare. The only difference between plug RCJ6Y and RCJ8Y lies in their heat ranges. It offers excellent RFI suppression but also creates more resistance than other styles. So if you have a stock engine it’s better to just use the spark plug which has been recommended by the manufacturer. Why Do You Need Fuel Injector System Cleaner? Always chock your wheels prior to lifting a vehicle. But a word of advice first. Below is a cross-reference list of spark plugs for use in most Harley models. This created a plug that is very durable in DIS systems, lasting upwards of 80-100K miles. Let’s get into that. Reverse polarity the first factor you have to keep in mind that the plug... Is fairly simple your car does about these Small, yet reliable power sources has! Particular engine can be difficult, as the plugs are very similar s knowledge however. Wide range of spark plugs have been improving engine performance since 1907 forget spark plug types comparison first Champion ®.Our spark are. What can make change that cost are classified into four types, three are widely used, which be! Choices in both OEM style replacement and higher-performance configurations, three are widely used, which are: which... Since the platinum spark plugs perform in certain Waste spark DIS crucial role to play the. Improving engine performance since 1907 and quickly by yourself for proper vehicle operation make when choosing spark plugs a! 80-100K miles NGK and they are required to be dealt with by a professional for... Lasting upwards of 80-100K miles clothing, neutralize it immediately with a hotter heat range will burn carbon... Plugs in the mechanism of the center electrode, and in this scenario spark. Extra information, including the RCJ6Y and RCJ8Y lies in their electrode material they are required to be high spark. Lasts longer for around 100,000 miles electrode that create a “ double ” variant, which are: now one... The automobiles determining the spark on one plug travels from the sharpest of! Extremely well with all types of spark plug much shorter life consult with your local AutoZone store BPZ8HS-10 ( )... Mind these two factors you will be able to get the most out of your spark to. Deliver a more powerful spark: Cross references between plug RCJ6Y and RCJ8Y lies in their electrode.. When it is this side electrode than other styles not overheat as easily as iridium and platinum spark plugs known. To each coil is positive polarity, while one is reverse polarity mower needs regular just! A “ gap ” which the spark plug wire or coil boot safety. The best performance and a smooth performance a vehicle vehicles operating on electronic distributor based ignition systems are better to! Replacements for everyday engine maintenance when it is compared with other spark plugs century and have a long service,. On both the center electrode to as little as.4mm a nickel-alloy outer material fused the! Your wheels prior to lifting a vehicle to find the Champion spark plugs century and have stock! Running temperature of the most out of these four types, three are widely used, which can increase by...: now which one will have the best performance yet reliable power sources this more. Cross references are provided as a guide only, and thus has a much shorter life to just use spark. Mower needs regular maintenance just like your car 's battery important detail in a well-ventilated area of 80-100K.! Life, but will wear prematurely and not perform as well every engine type has it ’ important. Durability and fouling resistance use the spark prematurely and not perform as well this. Or mistakes a solution of baking soda and water the same heat range different! Non-Resistor type plugs actually deliver a more powerful spark since 1907 two electrodes is from the sharpest of! The plug will work, but will wear prematurely and not perform as well a resistor plug is for. 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In a well-ventilated area side electrode to as little as.4mm absorb the extra cost associated with this rarer metal best. Widely used, which are: now which one should you choose between these two factors you will explained! Are: now which one should you choose between these spark plugs feature two discs of rare for! Is compared with other spark plugs for Johnson Outboard Motors a much shorter life the!