NGK UR5 - Alternative spark plugs. The last digit in an Autolite part number represents the heat range within a plug family. The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. Don't just ask for a spark plug, insist on NGK. These ideas are both false. As a result, more heat stays in the ceramic firing end and less is dissipated to the engine. For example, a 10 heat range in Champion is not the same as a 10 heat range in NGK nor the same in Autolite. Iridium IX® vs. OE Iridium Spark Plugs NGK builds two types of iridium spark plugs: OE Iridium and Iridium IX®. Refer to recommendation section for specific engine applications Comp. NGK.com specializes in hard to find NGK products. One misconception is that the heat range is related to the spark temperature or intensity. UPC: 087295127711. NGK Spark plugs are available in a variety of heat ranges to work in any stock or modified engine. Actual OE or equivalent replacement spark plug. View All Current Rebates and Promotions . We are not NGK Spark Plugs USA. Learn more. Summit Racing Part Number: NGK-2771. Summit Racing Gift Cards - Always the Perfect Gift! Often hotter heat ranges have been used to address a fuel delivery or oil consumption problem. and material, plugs produced by various manufacturers do not have exactly the same heat range. Another common misconception is that the spark plug is designed as a heat sink to “remove” heat from the combustion chamber. Some NGK Racing Plugs are also available in half heat ranges. In identical spark plug types, the difference from one full heat range to the next is the ability to remove 70°C to 100°C from the combustion chamber. If the heat range is too cold, the spark plug will be unable to properly self-clean by burning off carbon deposits. This is a video I made about spark plugs, their function, and mainly focused on the heat range. Typically the heat range for NGK Spark Plugs varies from 2-11. One of the most misunderstood aspects of spark plugs – is the heat range. The last digit in an Autolite part number represents the heat range within a plug family. Autolite has 2544, 2545 and 2546 available. NGK V-POWER SPARK PLUG - 2771 - UR5 - NGK 2771: Available online or at your local NAPA Auto Parts store. Autolite spark plug heat range is generally indicated by the last digit of the part number. Part# NGK STK # NGK # Comp. All dual precious metal plugs are designed to provide maximum longevity.… Read More. A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. Summit Racing Gift Cards - Always the Perfect Gift! A COLDER or 'harder' spark plug is more suited to a hotter running engine (i.e. Don't just ask for a spark plug, insist on NGK. Choosing the right heat range is crucial for high performance engines. A colder plug would be # R5671A-11 (heat range 11), a hotter plug would be # R5671A-9 (heat range 9). Explanation of a Spark Plugs Heat Range from NGK Spark Plugs USA Autolite has 2544, 2545 and 2546 available. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. For example, R6120-85 has a 8.5 heat range and R6120-105 has a … The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. Secure Online Ordering. https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html If the average operating temperature of a Holden Commodore (which uses a 6 heat range) was 700°C the addition of LPG would exceed the operating range of 870°C. Share - NGK V-Power Heat Range 5 Spark Plug (UR5) - ngk2771. Est. We also share information about your use of our site with our advertising and analytics partners. NGK Denso Champion Heat Range Equivalents A Spark Plug's heat range is a measure of it's ability to conduct heat away from its firing end. If the heat range is not optimal, then serious trouble can be the result. NGK.com specializes in hard to find NGK products. Autolite's numbering system does not have a standardized heat range identifier. Every plug in the Laser Series was designed for an OEM application. Part Type: Spark Plugs. Free shipping for many products! Product Line: NGK V-Power Spark Plugs. Heat range is the speed at which a spark plug can transfer heat from the firing tip to the cylinder head water jacket and into the cooling system. As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. The world leader in spark plug technology for over 80 years. There are 72 replacement spark plugs for NGK UR5. 100% Guaranteed Satisfaction Hassle-Free Returns Awesome … Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. Be the first to know about sales and promotions, The last digit in an Autolite part number represents the heat range. As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. Heat sink to “ remove ” heat from the combustion chamber for a spark plug dissipates its firing temperature. Optimal firing end temperature is approximately 500°C ( 932°F ) to 800°C ( ). Are also available in half heat ranges to work in any stock or modified engine (.... In a variety of heat ranges not optimal, then serious trouble can be the first to know about and. A plug family, and 2546 is the hotest temperature or intensity recommendation section for specific engine applications Comp cross. 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