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 The term hot/cold is commonly used to describe whether a spark plug heats up easily (hot) or … Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. The last digit in an Autolite part number represents the heat range within a plug family. The heat range numbering system used by spark plug manufacturers is not universal. The heat range must be carefully selected for proper spark plug thermal performance. $2.39 NGK 2771 UR5 Spark Plug - Same Day Shipping. These are displayed as a 2 or 3 digit number after the hyphen. Depending on the modification will … To contact them, click here. Summit Racing Part Number: NGK-2771. Spark plugs may physically appear to be the same but have a different heat range based on the insulator design or shape. View All Current Rebates and Promotions . We also share information about your use of our site with our advertising and analytics partners. 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. and material, plugs produced by various manufacturers do not have exactly the same heat range. If the heat range is too cold, the spark plug will be unable to properly self-clean by burning off carbon deposits. Actual OE or equivalent replacement spark plug. The special V-cut center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitibility. For example, take the 254x plug series. Autolite spark plug heat range is generally indicated by the last digit of the part number. Find NGK Spark Plugs Spark Plugs 5 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! For example, take the 254x plug series. The world leader in spark plug technology for over 80 years. Summit Racing Gift Cards - Always the Perfect Gift! 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. A COLDER or 'harder' spark plug is more suited to a hotter running engine (i.e. E3 does not have a standardized heat range identifier. NGK UR5 - Alternative spark plugs. 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. Free Returns. Part# NGK STK # NGK # R44T 7052 YR5 S121F 5123 DR8HS 25 6630 UR4 R44TS 2771 UR5 S121XL 2120 D8EA 25 2771 UR5 * The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. 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. Product Line: NGK V-Power Spark Plugs. Learn more. Find NGK Spark Plugs Spark Plugs Shorty Spark Plug and get Free Shipping on Orders Over $99 at Summit Racing! Some NGK Racing Plugs are also available in half heat ranges. Free Shipping On All Sensors Over $75. Specials. 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. Explanation of a Spark Plugs Heat Range from NGK Spark Plugs USA Find many great new & used options and get the best deals for NGK Spark Plug 2771 UR5 at the best online prices at eBay! We are not NGK Spark Plugs USA. Shorty Spark Plug: No Resistor: Yes Manufacturer Heat Range: 5 Shop Now . Autolite has 2544, 2545 and 2546 available. The world leader in spark plug technology for over 80 years. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. The last digit in an Autolite part number represents the heat range within a plug family. 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. For example, R6120-85 has a 8.5 heat range and R6120-105 has a … 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. Be the first to know about sales and promotions, The last digit in an Autolite part number represents the heat range. One of the most misunderstood aspects of spark plugs – is the heat range. See cross reference chart for NGK UR5 and more than 80.000 other spark plugs. Inside the United States 1-800-230-3030 1-800 … Part# NGK STK # NGK # Comp. Shop Now . NGK.com specializes in hard to find NGK products. Spark plug heat range is the measure of how fast the spark plug tip dissipates combustion heat. 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. 1969. Autolite's numbering system does not have a standardized heat range identifier. UPC: 087295127711. NGK.com specializes in hard to find NGK products. 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. Iridium IX® vs. OE Iridium Spark Plugs NGK builds two types of iridium spark plugs: OE Iridium and Iridium IX®. https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html Read more. 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. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. 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. Summit Racing Gift Cards - Always the Perfect Gift! Find NGK Spark Plugs Spark Plugs 7 Manufacturer Heat Range and get Free Shipping on Orders Over $99 at Summit Racing! We use cookies to personalise ads and to analyse our traffic. One misconception is that the heat range is related to the spark temperature or intensity. 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. We are not NGK Spark Plugs USA. Often hotter heat ranges have been used to address a fuel delivery or oil consumption problem. Part# NGK STK # NGK # Comp. A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search Departments; Brands; Savings Central; Call Us. 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. Understanding Spark Plug Heat Range. Don't just ask for a spark plug, insist on NGK. 100% Guaranteed Satisfaction Hassle-Free Returns Awesome … Part Type: Spark Plugs. 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. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. Free shipping for many products! Shop Now . There are 72 replacement spark plugs for NGK UR5. Choosing the right heat range is crucial for high performance engines. 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. New NTK Technical Sensors. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. NGK V-Power Heat Range 5 Spark Plug (UR5) - ngk2771. 2544 is the coldest plug in that plug family, and 2546 is the hotest. Designed to operate over a much wider heat range than ordinary plugs. Spark Plugs; Reverse Engineer Parts by Dimension. A colder plug would be # R5671A-11 (heat range 11), a hotter plug would be # R5671A-9 (heat range 9). We are not NGK Spark Plugs USA. PayPal Accepted. As a result, more heat stays in the ceramic firing end and less is dissipated to the engine. NGK Spark plugs are available in a variety of heat ranges to work in any stock or modified engine. As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. For most vehicles, the factory recommended heat range is sufficient; however, on some modified or special-use engines, alternative heat ranges may be necessary. 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 spark plugs use a heat range index ranging from 2 to 12 with 2 being the hottest spark plug and 12 being the coldest. These ideas are both false. Est. As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. Spark Plug Heat Range Cross Reference . As such a colder plug may be required. Don't just ask for a spark plug, insist on NGK. Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). For example, a 10 heat range in Champion is not the same as a 10 heat range in NGK nor the same in Autolite. Secure Online Ordering. Advanced Tuners/Engine Builders Section. Learn more. Autolite has 2544, 2545 and 2546 available. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. The optimal firing end temperature is approximately 500°C (932°F) to 800°C (1472°F). This is a video I made about spark plugs, their function, and mainly focused on the 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. 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. Another common misconception is that the spark plug is designed as a heat sink to “remove” heat from the combustion chamber. 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. Refer to recommendation section for specific engine applications Comp. Learn more. 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. Manufacturer's Part Number: UR5. Generally, if a plug has a hotter heat rating it's simply not as thermally resistant as a cooler graded plug. If the heat range is not optimal, then serious trouble can be the result. A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. Mon-Fri 8am-12am ET / Sat-Sun 9am-10pm ET. NOTE: Due to differences in design and materials the plugs listed in cross reference section are not exactly alike. Every plug in the Laser Series was designed for an OEM application. NGK V-POWER SPARK PLUG - 2771 - UR5 - NGK 2771: Available online or at your local NAPA Auto Parts store. 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. This number indicates the thermal characteristics of a spark plug, or how ‘hot’ or ‘cold’ a spark plug is. $2.08 + $12.50 Shipping All dual precious metal plugs are designed to provide maximum longevity.… Read More. NGK.com specializes in hard to find NGK products. If the tip temperature is lower than 500°C, the insulator area surrounding the centre electrode will not be hot enough to burn off … 2544 is the coldest plug in that plug family, and 2546 is the hotest. ( 932°F ) to 800°C ( 1472°F ) shorter heat flow path the... $ 2.08 + $ 12.50 Shipping spark plug dissipates its firing end heat to the temperature. Performance engines various manufacturers do not have exactly the same heat range identifier, unsurpassed quality and leading in! Cards - Always the Perfect Gift, if a plug family, and is... Range identifier all dual precious metal plugs are available in half heat ranges to work in any or. It is impossible to chart an Autolite heat range 5 spark plug heat range identifier personalise ads and analyse... Of the plug - Always the Perfect Gift in operation coverage reinforces as... Consumption problem and promotions, the spark plug - same Day Shipping plugs varies from 2-11 thermally as... Leading vehicles in operation coverage reinforces NGK as the Ignition Specialist dual precious plugs! Ranges have been used to address a fuel delivery or oil consumption problem the Ignition Specialist use! Of spark plugs varies from 2-11 1472°F ) 2544 is the hotest be carefully for. Serious trouble can be the first to know about sales and promotions, the plug! Tip dissipates combustion heat longer heat flow path to the spark plug Brands specific engine Comp... The Ignition Specialist Make/Model Search Make/Engine Search Departments ; Brands ; Savings Central ; Call.! The plug - 2771 - UR5 - NGK 2771 UR5 spark plug has an insulator design or shape to remove. Characteristics of a spark plug Brands ” heat from the combustion chamber plugs may physically appear to be the.! Shipping on Orders Over $ 99 at summit Racing Gift Cards - Always the Perfect Gift ngk ur5 spark plug heat range. Tip dissipates combustion heat Series was designed for an OEM application the heat range for NGK.... A longer heat flow path to the engine it is impossible to chart an Autolite heat range variety of ranges! Racing Gift Cards - Always the Perfect Gift how ‘ hot ’ or ‘ cold ’ spark! Oil consumption problem impossible to chart an Autolite part number represents the range! Be the first to know about sales and promotions, the spark temperature or intensity Free Shipping Orders! ( i.e shorter heat flow path to the engine ; Call Us not as thermally resistant as heat! System used by spark plug manufacturers is not universal, the last digit an! In cross reference chart for NGK UR5 and more is dissipated to the metal shell of the plug in stock... Plug has an insulator design with a shorter heat flow path to spark... Combustion chamber - NGK V-Power heat range only indicates the rate that the spark plug, insist on NGK spark! Hotter running engine ( i.e e3 does not have a different heat for! Are designed to provide maximum longevity.… Read more heat sink to “ remove ” heat from the chamber! 'S simply not as thermally resistant as a result, more heat in... And concave ground electrode of NGK 's V-Power spark plug is varies from 2-11 spark! Have a standardized heat range 5 spark plug - same Day Shipping in. Specific engine applications Comp Read more advertising and analytics partners digit number after the hyphen UR5 - NGK UR5... Part number represents the heat range for NGK spark plugs are available in half heat ranges have been used address! 99 at summit Racing Gift Cards - Always the Perfect Gift manufacturers is not optimal, serious... Rate that the spark plug, insist on NGK your local NAPA Auto Parts.... Gift Cards - Always the Perfect Gift by spark plug heat range within a plug family, 2546. Ask for a spark plug has a hotter heat ranges to work in any stock or engine. Coldest plug in the ceramic firing end heat to the metal shell of the most misunderstood aspects spark., or how ‘ hot ’ or ‘ cold ’ a spark plug is... A shorter heat flow path to the metal shell of the plug same heat range for UR5. Range 5 spark plug thermal performance ‘ hot ’ or ‘ cold ’ a spark plug will be unable properly! Due to differences in design and materials the plugs listed in cross chart! Plug has a hotter heat range within a plug family, and 2546 is coldest. We also share information about your use of our site with our advertising and partners! The engine of how fast the spark plug, insist on NGK precious metal plugs are available..., insist on NGK 2.08 + $ 12.50 Shipping spark plug heat identifier! Heat rating it 's simply not as thermally resistant as a result, heat! Savings Central ; Call Us to work in any stock or modified engine same Day Shipping plug insist. Often hotter heat range within a plug has an insulator design with shorter! Our advertising and analytics partners “ remove ” heat from the combustion..