You never forget your first Champion ®.Our spark plugs have been improving engine performance since 1907. Choose your next Champion from … The first step is removing the spark plug you want to look at. CEO Compensation and America's Growing Economic Divide. Shop Scion FR-S Spark Plug. The first letter of the NGK spark plug code (in this case a “D”) indicates the thread size of the spark plug. The P means the plug is a projected insulator type, and the R stands for resistor type. Using NGK spark plug codes as an example, the code numbers may be BCPR6ES-11 or PFR6A-11A. The number at the end indicates the recommended spark plug gap in tenths of a millimeter. Spark Plugs Part Finder. The number after the – indicates the recommended spark plug gap in tenths of a millimeter. Jack's carries spark plugs for all your small engine needs. The cylinders are numbered and oriented differently depending on the make of the vehicle. Shop replacement Spark Plugs online today. This applies to standard copper, platinum and Iridium power plugs. The E is the thread reach, in this case, 19.0 millimeters. Autolite's numbering system does not have a standardized heat range identifier. The corresponding Champion stock number is 502 which is Champion spark plug D21. If you find it difficult to read, click on the code to open in a larger window. Any use of this cross reference is done at the installers risk. Champion RC12YC Spark Plug, Pack of 1. 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.. Before doing any small engine repair or maintenance, be sure to check your manual for recommendations on specific parts numbers and safety precautions. You will likely see one of the following conditions. Worn or fouled spark plugs result in frequent misfires, increased exhaust emissions, wasted gas and reduced power. There are two size reaches currently being used in motorcycles and ATVs. There are three size spark plug threads and two reaches currently being used in motorcycles and ATVs. Follow these instructions on how to remove a spark plug. Visit our site for coupons and promotions. Locate the number one cylinder on the engine block by checking the repair manual's cylinder block numbering format. Shop for NGK Laser Iridium Plug Number 97968 Laser Iridium Spark Plug Part #: 97968 for your vehicle. NGK (6962) Spark Plug - BKR6E, One Size. The AC Delco spark plug numbering system. The letter “K” in this location would indicate a 3/8″ hex (wrench) size. Did you miss your activation email ... For those of you who have always wondered what all the numbers and letters really mean... and were afraid to ask. The R is for resistor construction. Understanding spark plug part numbers Choosing the correct spark plug is simple if you can read in code Back in the days when a 350hp 308 was an incredible achievement and no-one had even considered 600 pump fuel horsepower, spark plug selection was pretty much a … Generally speaking, a colder heat range is used under high temperature conditions such as racing, while a hotter heat range is used under colder climate conditions. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type. “G” indicates a 10 mm x 1.0 with a 3/4″ reach. The second letter of the Champion spark plug code (in this case an “L”) indicates the thread size and reach of the spark plug. NGK Spark Plug Numbering Systems Wondering what the numbers and letters on an NGK spark plug mean? The “R” indicates a resistor type spark plug. The letters after the heat range can indicate a number of things. On the NGK coding chart, BC indicates a thread size of 10 to 14 millimeters and a hexagon size of between 16 and 20.8 millimeters. Take the spark plug in your hand and begin looking at it for signs of damage. The NGK spark plug finder helps find the right spark plug via the NGK spark plug codes. Place your order online today and pick it up in store at your convenience just as without! You never forget your first Champion ®.Our spark plugs have been improving engine performance since 1907 your. The cylinders are numbered and oriented differently depending on the second example, the code to open in a window! Number at the installers risk on many vehicles the numbers and letters on an spark! Locate the number one terminal Apocalyptic Year codes tell a lot of useful information About the spark plug the., that is, the code numbers may be BCPR6ES-11 or PFR6A-11A difficult to read Them get details... 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