The second factor is the diameter of the center electrode. NOTE: Cross references are provided as a guide only. Tis the season for tune-ups, my friends! compare NGK spark plugs with Champion, AC, Denso, Bosch, KLG and Auto-lite Spark plug … 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. The only difference between plug RCJ6Y and RCJ8Y lies in their heat ranges. Copper spark plugs are generally considered to have the best performance of any spark plug type. 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. ACDELCO OE CONVENTIONAL SPARK PLUGS Harder than platinum, Iridium plugs came on the market in the mid-2000’s as coil-on-plug systems began to get more popular. When analyzing different kinds of spark plugs, it’s important to understand the terminology. In addition, carbon core breaks down more quickly than other materials so they require relatively frequent replacement. The platinum plate carries the sharp end of the spark plug which handles the spark. It’s important to note that DIS “wasted spark” coil systems operate best on Double Platinum Plugs. Spark plugs with a hotter heat range will burn off carbon deposits more easily than a colder plug. Spark plugs are a key component to your engine and come in three basic varieties: copper, platinum, and Iridium. We hope you find this publication useful. FREE Loan-A-Tool® program requires returnable deposit. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. These spark plugs are made with a pure copper core that results in a cooler electrode temperature for maximized durability and fouling resistance. This point we will discuss below. The platinum plate carries the sharp end of the spark plug which handles the spark. The center electrode on copper spark plugs also has the biggest diameter of all the spark plugs i.e. Granted, the plug will work, but will wear prematurely and not perform as well. Downgrading to single plate platinum or copper spark plugs is not a very good option. (C) 1989-2020 AutoZone, Inc. All Rights Reserved, Got feedback for our blog? 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. These spark plugs are ideal for most cars that we … The core of the plug is generally made of copper, with a center electrode. 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). Consider the recommended spark plug to use in the car as well. Out of these four types, three are widely used, which are: Now which one should you choose between these spark plugs? 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. The manual will specify the right plugs for your vehicle. Wondering how spark plugs get engine combustion going? Standard Spark Plug LFR6A-11 (150) $7.49. Types of spark plugs available today are known as "copper", "nickel", "platinum", "double platinum", "iridium", and "silver". It is this side electrode and the center electrode that create a “gap” which the spark jumps from. 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. Learn about 12 great tools that can help any DIYer up their game. Compare. Some cars do have complex engine design around spark plugs and they are required to be dealt with by a professional. Platinum spark plugs tend to run hotter, preventing fouling and buildup of deposits. Wondering how much it'll cost to take your ride in for a tune-up? These engines are the only exception and in this scenario copper spark plugs are known to be high performance spark plugs. 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. With a full line of spark plugs, coils, and wire sets, NGK covers 95% of import and domestic vehicles on the market. 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. If your car needs new spark plugs and needs replacement you should be able to do it fairly easily and quickly by yourself. 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. The spark between these two electrodes is from the sharpest point of both electrodes. These used to be the most common plug type on the … 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. 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. Copper spark plug’s core is made up of full copper but the center electrode is made of nickel alloy. You never forget your first Champion ®.Our spark plugs have been improving engine performance since 1907. Knowing which plug to use in a particular engine can be difficult, as the plugs are very similar. SparkPlugCrossReference.co.uk will show you where you can purchase your spark plugs along with their price and extra information, including plug specifications. The main difference is that copper spark plugs give the best performance and do not overheat as easily as iridium and platinum spark plugs. 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. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. It offers excellent RFI suppression but also creates more resistance than other styles. A standard spark plug typically features a nickel-alloy outer material fused to the copper-core electrodes. Nickel is softer than platinum or iridium, and thus has a much shorter life. Topbestreviewss.com. So if you have a stock engine it’s better to just use the spark plug which has been recommended by the manufacturer. 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. Laser Iridium Spark Plug IZFR6J (17) $16.99. The database consists of 25,360 cross references between plug manufacturers. Where plugs differ though, is in their electrode material. Because iridium is costly, iridium spark plug manufacturers reduce the diameter of the center electrode to as little as.4mm. 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. Spark plugs have a crucial role to play in the mechanism of the automobiles. 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. Which is better suited to your car? If you don’t have an owner’s manual, you can always consult with your local AutoZone store. This site can cross reference any spark plugs to NGK, Champion, Bosch and Denso. Iridium plugs usually feature the smallest diameter center, which can increase efficiency by reducing voltage needed to create a spark. NGK 6619 Iridium Spark Plugs LFR6AIX. 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. There are a couple of spark plug models in the market. Huge database covering >100 different brands and thousands of spark plugs. “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. Due to differences in design and material, plugs produced by various manufacturers do not have exactly the same heat range. NGK SPARK PLUGS. But, which one will have the edge in a Denso vs NGK comparison? 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. So let’s get started with it. Use caution when working with automotive batteries. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. It is for this reason that most racing plugs are non-resistor types. Spark Plug Cross Ref. To make this even more complicated, one spark plug attached to each coil is positive polarity, while one is reverse polarity. 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. Champion spark plugs are original equipment on many outboard and inboard motors and are excellent replacements for everyday engine maintenance. Since resistor type plugs actually “resist” some of the spark energy, non-resistor type plugs actually deliver a more powerful spark. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. 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. NGK SPARK PLUGS. Keeping in mind these two factors you will be able to get the most out of your spark plug selection. 2019 – Buyer’s Guide. Standard Spark Plug BPZ8HS-10 (150) $8.99. Let’s get into that. Iridium is harder than platinum, and in most cases, iridium spark plugs last about 25 percent longer than comparable platinum spark plugs. This means you have a decision to make when choosing spark plugs for your car. Compare. Recommended replacement intervals vary by … Double Platinum Spark Plugs. If in doubt, refer to your vehicle’s manual, or consult an AutoZone parts specialist for the correct plugs for your vehicle. 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. 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. Every engine type has it’s own timing in the combustion process. However, in most automotive applications, a resistor plug is required for proper vehicle operation. This means that the spark on one plug travels from the center electrode to the side electrode. Iridium spark plugs are the most expensive and have a … 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). Learn about these small, yet reliable power sources. The harder, platinum material lasted longer, as manufacturers made a push to develop spark plugs and antifreeze that lasted upwards of 80-100K miles. Spark Plugs . Please view the application guide below. 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. Convert one spark plug brand to another. Learn typical price ranges and what can make change that cost. 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. 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. Typically, the type of vehicle you drive will play a big role in determining the spark plug that’s an ideal fit. 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. There are three main spark plug types to choose from, so the question becomes: Which is the right type for your car? You don’t want to install single platinum plugs if your owner’s manual recommends a double platinum spark plug. Since the platinum plate is stronger than copper so it lasts longer for around 100,000 miles. So it’s not the best performing spark plug when it is compared with other spark plugs. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes. 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 created the need for a double-platinum plug that has a platinum disc on both the center electrode, and the side electrode. Spark plugs all consist of a top, ceramic and metal terminal that attaches to either a spark plug wire or coil boot. 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. Spark plugs are specified by size, either thread or nut (often referred to as Euro), sealing type (taper or crush washer), and spark gap. Platinum spark plugs are also slightly hotter, preventing fouling. Autolite HT15 Platinum High Thread Spark Plug. Copper core spark plugs are the most basic and affordable type of spark plug that you can buy. This is one of the most asked question related to spark plugs and the answer to this question is fairly simple. 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 only use of copper spark plugs in modern cars is with the high performance engines which are designed and manufactured around copper spark plugs. 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. 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. Since the platinum plate is stronger than copper so it lasts longer for around 100,000 miles. Below is a cross-reference list of spark plugs for use in most Harley models. Learn how to switch out your lawn mower's spark plugs. So which kind or spark plugs are there in the market? Copyright © 2017 - 2020. 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. Plug Design. Your lawn mower needs regular maintenance just like your car does. Check Latest Price. 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