As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. NGK V-Power Heat Range 5 Spark Plug (UR5) - ngk2771. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. NGK V-POWER SPARK PLUG - 2771 - UR5 - NGK 2771: Available online or at your local NAPA Auto Parts store. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. Spark plugs are designed to operate in a temperature range of 450 – 870°C, when an engine is modified (generally to produce more power which produces more heat) in turn the engine and subsequent spark plug temperatures increase. Shop Now . For a spark plug to function properly, it must have a tip temperature high enough to burn off carbon deposits (self-cleaning) and avoid fouling, while remaining low enough to avoid overheating the ceramic firing end and pre-ignition. Summit Racing Gift Cards - Always the Perfect Gift! To contact them, click here. Part# NGK STK # NGK # Comp. Choosing the right heat range is crucial for high performance engines. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. Autolite has 2544, 2545 and 2546 available. The heat rating is a measure of the amount of heat dissipation.The heat range of a spark plug is the range in which the plug works well thermally. The optimal firing end temperature is approximately 500°C (932°F) to 800°C (1472°F). We use cookies to personalise ads and to analyse our traffic. Learn more. https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html Iridium IX® vs. OE Iridium Spark Plugs NGK builds two types of iridium spark plugs: OE Iridium and Iridium IX®. 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. New NTK Technical Sensors. Find many great new & used options and get the best deals for NGK Spark Plug 2771 UR5 at the best online prices at eBay! Learn more. Autolite has 2544, 2545 and 2546 available. high performance, high revving, tuned or driven very hard), the shorter heat path will conduct heat more quickly, ensuring that the tip does not overheat. Refer to recommendation section for specific engine applications Comp. Some NGK Racing Plugs are also available in half heat ranges. The last digit in an Autolite part number represents the heat range within a plug family. One of the most misunderstood aspects of spark plugs – is the heat range. Part Type: Spark Plugs. The term hot/cold is commonly used to describe whether a spark plug heats up easily (hot) or … Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). We also share information about your use of our site with our advertising and analytics partners. Product Line: NGK V-Power Spark Plugs. These ideas are both false. Heat Range: 7; Resists carbon buildup and pre-ignition; High alumina ceramics for better heat transfer and electrical insulation; Solid copper core and nickel tipped electrode provide a longer plus life A colder plug would be # R5671A-11 (heat range 11), a hotter plug would be # R5671A-9 (heat range 9). Shop Now . Whether the spark plugs are fitted in a lawnmower, boat, or a race car, the spark plug tip temperature must remain between 500C-850°C. NGK V-Power Spark Plug Heat Range 5 (FR5) NGK V-Power Spark Plug (ZFR7F-11) NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Another common misconception is that the spark plug is designed as a heat sink to “remove” heat from the combustion chamber. 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. See cross reference chart for NGK UR5 and more than 80.000 other spark plugs. 1969. View All Current Rebates and Promotions . Every plug in the Laser Series was designed for an OEM application. Spark Plug Heat Range Cross Reference . As such a colder plug may be required. 2544 is the coldest plug in that plug family, and 2546 is the hotest. NGK spark plugs use a heat range index ranging from 2 to 12 with 2 being the hottest spark plug and 12 being the coldest. For example, take the 254x plug series. Free Returns. The world leader in spark plug technology for over 80 years. Part# NGK STK # NGK # Comp. Summit Racing Gift Cards - Always the Perfect Gift! A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. Installing a hotter heat range plug will reduce the pre-ignition safety margin, so it is better to correct the mechanical or tuning issue instead of changing the plug heat range. Use this handy chart to determine the best spark plug for your heat range selection, or cross reference the racing spark plug you are currently using to try a different brand of spark plug. Find NGK Spark Plugs Spark Plugs Shorty Spark Plug and get Free Shipping on Orders Over $99 at Summit Racing! We are not NGK Spark Plugs USA. Free shipping for many products! Specials. Understanding Spark Plug Heat Range. UPC: 087295127711. 2544 is the coldest plug in that plug family, and 2546 is the hotest. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. $2.39 NGK 2771 UR5 Spark Plug - Same Day Shipping. The last digit in an Autolite part number represents the heat range within a plug family. Typically the heat range for NGK Spark Plugs varies from 2-11. 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. Don't just ask for a spark plug, insist on NGK. NGK SPARK PLUG is the world’s leading manufacturer of spark plugs, glow plugs, and lambda sensors, and supplies a vast range of products from the field of ignition and sensor technology. Shorty Spark Plug: No Resistor: Yes Manufacturer Heat Range: 5 Explanation of a Spark Plugs Heat Range from NGK Spark Plugs USA As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. Advanced Tuners/Engine Builders Section. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. We are not NGK Spark Plugs USA. There are 72 replacement spark plugs for NGK UR5. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. The spark plug is heated during combustion and must dissipate that heat to the cylinder head at a certain rate to avoid overheating the ceramic firing end. Summit Racing Gift Cards - Always the Perfect Gift! For example, a 10 heat range in Champion is not the same as a 10 heat range in NGK nor the same in Autolite. 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. NGK UR5 - Alternative spark plugs. Spark Plugs; Reverse Engineer Parts by Dimension. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. For example, R6120-85 has a 8.5 heat range and R6120-105 has a … 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. E3 does not have a standardized heat range identifier. The world leader in spark plug technology for over 80 years. Actual OE or equivalent replacement spark plug. Be the first to know about sales and promotions, The last digit in an Autolite part number represents the heat range. If the tip temperature is lower than 500°C, the insulator area surrounding the centre electrode will not be hot enough to burn off … Often hotter heat ranges have been used to address a fuel delivery or oil consumption problem. This is a video I made about spark plugs, their function, and mainly focused on the heat range. If the heat range is not optimal, then serious trouble can be the result. A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. Share - NGK V-Power Heat Range 5 Spark Plug (UR5) - ngk2771. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. Inside the United States 1-800-230-3030 1-800 … Autolite spark plug heat range is generally indicated by the last digit of the part number. Summit Racing Part Number: NGK-2771. Secure Online Ordering. Learn more. Find NGK Spark Plugs Spark Plugs 5 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! Spark plugs heat ranges can vary massively from plug to plug, and (rather frustratingly) can be recorded in a number of different ways, making comparison between brands rather hard. Generally, if a plug has a hotter heat rating it's simply not as thermally resistant as a cooler graded plug. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. Free Shipping On All Sensors Over $75. Manufacturer's Part Number: UR5. Depending on the modification will … Read more. Spark plugs may physically appear to be the same but have a different heat range based on the insulator design or shape. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. These are displayed as a 2 or 3 digit number after the hyphen. 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. NGK.com specializes in hard to find NGK products. Don't just ask for a spark plug, insist on NGK. A COLDER or 'harder' spark plug is more suited to a hotter running engine (i.e. A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. 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. PayPal Accepted. 100% Guaranteed Satisfaction Hassle-Free Returns Awesome … We are not NGK Spark Plugs USA. Autolite's numbering system does not have a standardized heat range identifier. This number indicates the thermal characteristics of a spark plug, or how ‘hot’ or ‘cold’ a spark plug is. For example, take the 254x plug series. NGK Spark plugs are available in a variety of heat ranges to work in any stock or modified engine. 2544 is the coldest plug in that plug family, and 2546 is the hotest. Spark plug heat range is the measure of how fast the spark plug tip dissipates combustion heat. NGK.com specializes in hard to find NGK products. For most vehicles, the factory recommended heat range is sufficient; however, on some modified or special-use engines, alternative heat ranges may be necessary. Est. NGK.com specializes in hard to find NGK products. and material, plugs produced by various manufacturers do not have exactly the same heat range. NOTE: Due to differences in design and materials the plugs listed in cross reference section are not exactly alike. Designed to operate over a much wider heat range than ordinary plugs. As a result, more heat stays in the ceramic firing end and less is dissipated to the engine. If the heat range is too cold, the spark plug will be unable to properly self-clean by burning off carbon deposits. The heat range numbering system used by spark plug manufacturers is not universal. Part# NGK STK # NGK # R44T 7052 YR5 S121F 5123 DR8HS 25 6630 UR4 R44TS 2771 UR5 S121XL 2120 D8EA 25 2771 UR5 * The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. One misconception is that the heat range is related to the spark temperature or intensity. The heat range must be carefully selected for proper spark plug thermal performance. Find NGK Spark Plugs Spark Plugs 7 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! All dual precious metal plugs are designed to provide maximum longevity.… Read More. Shop Now . 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Racing Gift Cards - Always the Perfect Gift, and 2546 is the hotest Departments ; ;... ; Brands ; Savings Central ; Call Us manufacturers do not have a standardized heat range within a plug.. Range within a plug family 's numbering system used by spark plug thermal performance plug dissipates firing! Remove ” heat from the combustion chamber leading vehicles in operation coverage reinforces NGK as the Ignition Specialist -.! One of the plug is approximately 500°C ( 932°F ) to 800°C ( 1472°F ) a graded! If the heat range ngk ur5 spark plug heat range a hotter running engine ( i.e are displayed as a cooler graded.... Every plug in that plug family operation coverage reinforces NGK as the Ignition Specialist a! First to know about sales and promotions, the last digit in an Autolite part number represents the range... Optimal, then serious trouble can be the same but have a standardized to! 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