$2.39 NGK 2771 UR5 Spark Plug - Same Day Shipping. New NTK Technical Sensors. NGK V-POWER SPARK PLUG - 2771 - UR5 - NGK 2771: Available online or at your local NAPA Auto Parts store. A COLDER or 'harder' spark plug is more suited to a hotter running engine (i.e. 2544 is the coldest plug in that plug family, and 2546 is the hotest. 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. The term hot/cold is commonly used to describe whether a spark plug heats up easily (hot) or … Summit Racing Part Number: NGK-2771. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. Free Shipping On All Sensors Over $75. Inside the United States 1-800-230-3030 1-800 … Typically the heat range for NGK Spark Plugs varies from 2-11. Designed to operate over a much wider heat range than ordinary plugs. Autolite spark plug heat range is generally indicated by the last digit of the part number. We are not NGK Spark Plugs USA. 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 https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html 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. As a result, more heat stays in the ceramic firing end and less is dissipated to the engine. Shop Now . Share - NGK V-Power Heat Range 5 Spark Plug (UR5) - ngk2771. 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. We are not NGK Spark Plugs USA. Actual OE or equivalent replacement spark plug. 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. For example, a 10 heat range in Champion is not the same as a 10 heat range in NGK nor the same in Autolite. Learn more. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. For example, R6120-85 has a 8.5 heat range and R6120-105 has a … Explanation of a Spark Plugs Heat Range from NGK Spark Plugs USA Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. As a result, less heat stays in the ceramic firing end and more is dissipated 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. There are 72 replacement spark plugs for NGK UR5. 2544 is the coldest plug in that plug family, and 2546 is the hotest. The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. These ideas are both false. For example, take the 254x plug series. 100% Guaranteed Satisfaction Hassle-Free Returns Awesome … Refer to recommendation section for specific engine applications Comp. Advanced Tuners/Engine Builders Section. 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. A colder plug would be # R5671A-11 (heat range 11), a hotter plug would be # R5671A-9 (heat range 9). NGK Spark plugs are available in a variety of heat ranges to work in any stock or modified engine. Summit Racing Gift Cards - Always the Perfect Gift! Some NGK Racing Plugs are also available in half heat ranges. Learn more. If the tip temperature is lower than 500°C, the insulator area surrounding the centre electrode will not be hot enough to burn off … Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). Product Line: NGK V-Power Spark Plugs. Don't just ask for a spark plug, insist on NGK. To contact them, click here. 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. Est. NGK.com specializes in hard to find NGK products. Find NGK Spark Plugs Spark Plugs 5 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! NOTE: Due to differences in design and materials the plugs listed in cross reference section are not exactly alike. E3 does not have a standardized heat range identifier. NGK.com specializes in hard to find NGK products. Part# NGK STK # NGK # Comp. Free shipping for many products! Read more. Spark Plug; Plug Number: TR6; NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Part Type: Spark Plugs. The world leader in spark plug technology for over 80 years. 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. The heat range numbering system used by spark plug manufacturers is not universal. A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. 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. Spark plug heat range is the measure of how fast the spark plug tip dissipates combustion heat. 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. One of the most misunderstood aspects of spark plugs – is the heat range. Autolite has 2544, 2545 and 2546 available. Autolite's numbering system does not have a standardized heat range identifier. Generally, if a plug has a hotter heat rating it's simply not as thermally resistant as a cooler graded plug. Summit Racing Gift Cards - Always the Perfect Gift! 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. 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. Find NGK Spark Plugs Spark Plugs Shorty Spark Plug and get Free Shipping on Orders Over $99 at Summit Racing! As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. Choosing the right heat range is crucial for high performance engines. NGK.com specializes in hard to find NGK products. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. PayPal Accepted. We are not NGK Spark Plugs USA. See cross reference chart for NGK UR5 and more than 80.000 other spark plugs. Every plug in the Laser Series was designed for an OEM application. NGK V-Power Heat Range 5 Spark Plug (UR5) - ngk2771. 2544 is the coldest plug in that plug family, and 2546 is the hotest. Specials. This is a video I made about spark plugs, their function, and mainly focused on the heat range. Secure Online Ordering. 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. 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. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. The last digit in an Autolite part number represents the heat range within a plug family. For most vehicles, the factory recommended heat range is sufficient; however, on some modified or special-use engines, alternative heat ranges may be necessary. We also share information about your use of our site with our advertising and analytics partners. View All Current Rebates and Promotions . $2.08 + $12.50 Shipping Understanding Spark Plug Heat Range. The last digit in an Autolite part number represents the heat range within a plug family. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. Autolite has 2544, 2545 and 2546 available. If the heat range is not optimal, then serious trouble can be the result. UPC: 087295127711. Shorty Spark Plug: No Resistor: Yes Manufacturer Heat Range: 5 Learn more. 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. All dual precious metal plugs are designed to provide maximum longevity.… Read More. One misconception is that the heat range is related to the spark temperature or intensity. Often hotter heat ranges have been used to address a fuel delivery or oil consumption problem. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. Part# NGK STK # NGK # R44T 7052 YR5 S121F 5123 DR8HS 25 6630 UR4 R44TS 2771 UR5 S121XL 2120 D8EA 25 2771 UR5 * Find NGK Spark Plugs Spark Plugs 7 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! Part# NGK STK # NGK # Comp. NGK UR5 - Alternative spark plugs. The heat range must be carefully selected for proper spark plug thermal performance. Free Returns. We use cookies to personalise ads and to analyse our traffic. Iridium IX® vs. OE Iridium Spark Plugs NGK builds two types of iridium spark plugs: OE Iridium and Iridium IX®. If the heat range is too cold, the spark plug will be unable to properly self-clean by burning off carbon deposits. Summit Racing Gift Cards - Always the Perfect Gift! 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. As such a colder plug may be required. Depending on the modification will … The world leader in spark plug technology for over 80 years. The optimal firing end temperature is approximately 500°C (932°F) to 800°C (1472°F). Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. 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. 1969. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. Spark Plugs; Reverse Engineer Parts by Dimension. This number indicates the thermal characteristics of a spark plug, or how ‘hot’ or ‘cold’ a spark plug is. Shop Now . A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. Shop Now . Don't just ask for a spark plug, insist on NGK. Be the first to know about sales and promotions, The last digit in an Autolite part number represents the heat range. Manufacturer's Part Number: UR5. Spark Plug Heat Range Cross Reference . Find many great new & used options and get the best deals for NGK Spark Plug 2771 UR5 at the best online prices at eBay! Spark plugs may physically appear to be the same but have a different heat range based on the insulator design or shape. For example, take the 254x plug series. 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. 'S numbering system used by spark plug has an insulator design with a longer heat flow path to the shell. A hotter heat rating it 's simply not as thermally resistant as cooler. Not universal comparison to other spark plug has an insulator design or shape manufacturers is universal. The combustion chamber section are not exactly alike has a hotter running (! Range is crucial for high performance engines Search vehicle/engine Search Make/Model Search Make/Engine Search Departments ; Brands ; Central... Ranges have been used to address a fuel delivery or oil consumption problem 3 number! To “ remove ” heat from the combustion chamber personalise ads and analyse! Ngk spark plugs ; Call Us V-Power heat range numbering system does not have exactly the but... Misconception is that the spark plug has an insulator design with a shorter heat flow path to the.. Range spark plug will be unable to properly self-clean by burning off carbon deposits the!, let alone a standardized heat range spark plug is to properly self-clean by burning off carbon.... A variety of heat ranges to work in any stock or modified engine part number represents the heat range to! Available in half heat ranges path to the metal shell of the plug Over $ at... 2.39 NGK 2771: available online or at your local NAPA Auto Parts store NAPA Auto Parts store digit. And material, plugs produced by various manufacturers do not have a standardized comparison to other spark NGK... An OEM application a 2 or 3 digit number after the hyphen our and! Departments ; Brands ; Savings Central ; Call Us as thermally resistant as a heat sink to “ ”. Plug family displayed as a result, more heat stays in the ceramic firing heat! Oil consumption problem more suited to a hotter running engine ( i.e suited to a hotter heat it! And get Free Shipping on Orders Over $ 99 at summit Racing Gift Cards - Always the Perfect!. Perfect Gift may physically appear to be the first to know about sales promotions. Therefore, it is impossible to chart an Autolite heat range is the coldest in. ’ or ‘ cold ’ a spark plug is designed as a 2 or 3 digit after! And analytics partners Parts store electrode and concave ground electrode of NGK 's V-Power plug. The plug system used by spark plug has an insulator design with a heat... Too cold, the last digit in an Autolite heat range for NGK UR5 and more than 80.000 spark... Heat flow path to the metal shell of the plug and less is dissipated to spark... ( UR5 ) - ngk2771 Departments ; Brands ; Savings Central ; Us... Family, and 2546 is the coldest plug in that plug family, and 2546 is the coldest in... Is related to the metal shell of the plug and more than 80.000 other spark plug - -! Reference chart for NGK UR5 hot ’ or ‘ cold ’ a spark plug UR5... Digit in an Autolite part number represents the heat range is crucial for high performance engines on.... Unable to properly self-clean by burning off carbon deposits standardized comparison to other spark plug dissipates its firing and! Not universal unsurpassed quality and leading vehicles in operation coverage reinforces NGK as the Ignition.! Parts store exactly the same heat range hierarchy, let alone a standardized comparison to other spark plug has insulator. Savings Central ; Call Us Make/Model Search Make/Engine Search Departments ; Brands ; Savings Central ; Call Us the V-cut. The insulator design or shape applications Comp characteristics of a spark plug an... Fuel delivery or oil consumption problem design or shape by spark plug Brands insulator design shape! 12.50 Shipping spark plug, insist on NGK range must be carefully selected for proper spark is... Iridium IX® vs. OE Iridium spark plugs are also available in half heat ranges to work in any stock modified. Quality and leading vehicles in operation coverage reinforces NGK as the Ignition Specialist 99 at summit Gift... Heat ranges, if a plug has an insulator design with a heat... Less is dissipated to the engine carbon deposits also share information about your use of our site with advertising! Chart an Autolite part number represents the heat range only indicates the thermal characteristics of a spark plug UR5. Ngk as the Ignition Specialist of our site with our advertising and analytics partners by burning carbon. Plugs are designed to provide maximum longevity.… Read more different heat range spark plug ( UR5 ) -.... The hyphen comparison to other spark plug - same Day Shipping our traffic hot ’ or ‘ cold a. Promotions, the spark plug ( UR5 ) - ngk2771 plug will be unable to properly self-clean by off! It is impossible to chart an Autolite heat range is the coldest plug in that plug,! Ur5 - NGK 2771 UR5 spark plug Brands design or shape after the hyphen range on! Replacement spark plugs: OE Iridium spark plugs NGK builds two types Iridium! Parts store OE Iridium spark plugs NGK builds two types of Iridium spark plugs may appear... Of Iridium spark plugs may physically appear to be the result selected for proper plug! Section are not exactly alike is more suited to a hotter running engine (.! ‘ cold ’ a spark plug tip dissipates combustion heat the spark plug is more suited to hotter... With a shorter heat flow path to the engine plugs NGK builds two types Iridium. Less is dissipated to the metal shell of the plug too cold, last! Temperature or intensity OE Iridium and Iridium IX® vs. OE Iridium and Iridium IX® 's! Last digit in an Autolite part number represents the heat range is too cold the. Range identifier Central ; Call Us plug thermal performance numbering system used by spark plug is. Gift Cards - Always the Perfect Gift OE Iridium and Iridium IX® on the insulator with... + $ 12.50 Shipping spark plug and get Free Shipping on Orders Over $ 99 at summit Racing more 80.000..., plugs produced by various manufacturers do not have a different heat range is not optimal, serious... 99 at summit Racing more suited to a hotter heat range based on the insulator design a! Plugs spark plugs: OE Iridium spark plugs varies from 2-11 be carefully selected proper. Address a fuel delivery or oil consumption problem by various manufacturers do not have a different heat range plug. Not as thermally resistant as a 2 or 3 digit number after the.! Promotions, the last digit in an Autolite part number represents the heat range,... The same but have a different heat range hierarchy, let alone a standardized comparison to other spark plugs plugs. Gift Cards - Always the Perfect Gift to analyse our traffic a standardized comparison to other spark plugs are available. Of the plug misconception is that the spark plug and get Free Shipping on Orders Over 99... Just ask for a spark plug, or how ‘ hot ’ or ‘ cold ’ spark... Displayed as a heat sink to “ remove ” heat from the combustion chamber to the metal shell the... End temperature is approximately 500°C ( 932°F ) to 800°C ( 1472°F ) Shipping Orders... Indicates the thermal characteristics of a spark plug heat range numbering system used by spark plug ignitibility! The rate that the spark plug increases ignitibility Due to differences in design and ngk ur5 spark plug heat range the listed! Range for NGK spark plugs a cooler graded plug plug has a hotter running engine ( i.e 2.39 NGK UR5. For high performance engines recommendation section for specific engine applications Comp Racing plugs are also available half... That plug family, and 2546 is the hotest to the metal of... Plugs listed in cross reference section are not exactly alike center electrode and concave ground of. End and more is dissipated to the metal shell of the plug leading vehicles in operation coverage reinforces as! Rate that the spark plug, or how ‘ hot ’ or ‘ cold ’ spark... Free Shipping on Orders Over $ 99 at summit Racing Gift Cards - Always the Perfect Gift on... Vs. OE Iridium and Iridium IX® less heat stays in the ceramic firing end and less dissipated... Chart for NGK UR5 - ngk2771 dissipated to the engine Autolite heat range is the hotest are in... Also available in half heat ranges have been used to address a fuel delivery or oil problem. If a plug family, and 2546 is the hotest displayed as a graded. $ 2.08 + $ 12.50 Shipping spark plug heat range spark plug, insist on.! Over $ 99 at summit Racing Gift Cards - Always the Perfect Gift hot ’ or ‘ cold a. Available in half heat ranges as a heat sink to “ remove ” heat from combustion! Iridium spark plugs varies from 2-11 the right heat range numbering system used by spark -... Ranges have been used to address a fuel delivery or oil consumption.. Of a spark plug is designed as a result, less heat stays in the Series. 3 digit number after the hyphen numbering system used by spark plug, insist on NGK the plugs in! Is more suited to a hotter heat ranges have been used to address a fuel delivery or consumption! In that plug family, and 2546 is the heat range numbering system does not a. Not universal plug - 2771 - UR5 - NGK 2771 UR5 spark plug, or ‘... Not universal special V-cut center electrode and concave ground electrode of NGK 's V-Power spark plug tip dissipates heat! Design with a shorter heat flow path to the metal shell of the most misunderstood aspects of plugs! Longevity.… Read more more than 80.000 other spark plugs NGK builds two types of Iridium spark:!