Sparkplug cross reference between Autolite Racing, AC Delco, Champion and NGK. . . For additional assistance contact our tech team at 888-800-9629. 180 SPARK PLUGS CROSS REFERENCE AC-DELCO ACCEL S/P 121XLS . . . Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. . 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. . Most parts stores have a cross … Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. Higher number indicate hot plug (for example 5 or 4) and low number indicate cold heat range (for example 1 or ). Part Finder Your auto parts, All makes and models. Shop for ACDelco Rapidfire Platinum Spark Plug Part #: 4 for your vehicle. . . BoschSparkPlugs.net is part of the SparkPlugs.com family - an authorized Bosch distributor. For example, SK20PR-A11 has a heat range of 20. If they are, Autolite 3923 or 3924 and AC Fr3LS or Bosch 7557 may work if they are the heat range you need. Starting with part # RCJ7Y (heat range 7), a colder plug would be # RCJ6Y (heat range 6), a hotter plug would be # RCJ8Y (heat range 8). For example, FR6DC+ has a heat range of 6. To contact Bosch USA, click here. Shop for ACDelco Spark Plug Part #: R44XLS for your vehicle. If it exists, you can add the part to your cart. . Typically, the heat range is indicated within the manufacturer's part number for each plug. 0882 40TS. 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. The lower the number, the colder the plug. . Place your order online today and pick it up in store at your convenience. Be the first to know about sales and promotions. . Place your order online today and pick it up in store … At this time the colder Pulstar heat range 2 is available in 3 designs. Get product details, choose a store, and get directions. The last digit in an Autolite part number represents the heat range within a plug family. Heat Range: 3 Additional Details More Information Brand ACDelco Cross Reference MERCURY MARINE 33-862029 CRUSADER MARINE 7243030 R030008A NGK TR5 … AC Delco 41-905 AC Delco 43TS AC Delco 45TS AC Delco CR43TS AC Delco CR43TSM AC Delco ... Any use of this cross reference is done at the installers risk. For additional assistance contact our tech team at 888-800-9629. » New Competitive Cross Reference Search Champion plugs are hotter the higher the number, colder the lower the number. . . 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. Determining correct spark plug heat double platinum spark plugs unled acdelco spark plugs ue 2004 1Spark Plug Cross Reference Heat Range ChartHeat Range Conversion ChartAc Delco Spark Plug Heat Range Chart LasvegCant Find Ac Plug Heat Range Chart Hot Rod ForumSpark Plug Cross Reference Heat Range ChartAc Delco Spark Plug Heat Range Chart LasvegAutolite Racing … . 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. Example: R5671A-10 has a heat range of 10. . 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, RV15YC6 has a heat range of 15. Get product details, choose a store, and get directions. FOR ANY MODIFIED APPLICATIONS, PLEASE CONTACT OUR … Bosch plugs get hotter the higher the number, colder the lower the number. . . . Be the first to know about sales and promotions, The last digit in an Autolite part number represents the heat range. A low heat range or hot spark plug has a long, thin insulator nose that heats up easily but does not dissipate the heat to the metal shell readily . For example, take the 254x plug series. E3 Spark Plug Cross Reference for AC Delco, Autolite, Bosch, Champion, Denso, Motorcraft, NGK, and Splitfire spark plugs. Always refer to catalogue data to select the recommended product for specific engines. Choosing the right heat range is crucial for high performance engines. If it exists, you can add the part to your cart. A colder plug would be # R5671A-11 (heat range 11), a hotter plug would be # R5671A-9 (heat range 9). Most parts stores have a cross referance chart. Ac Delco Spark Plug Heat Inside the cylinder, spark plugs are subjected to severe conditions such as 25,000 volts or more of electricity, temperatures reaching 4,000 degrees Fahrenheit, and pressure up to 2,000 psi. Autolite Racing AC Delco Champion NGK NGK Stock Number AR12 40TS RV9YC R5674-7 5034 AR13 RV9YC R5674-6 4449 AR23 Autolite has 2544, 2545 and 2546 available. Examples have been provided below for some of the brands we supply. Resilient and reliable, our spark plugs are designed to withstand the harsh elements of the engine. Denso Iridium Power plugs feature the heat range at the end of the part number. Autolite indicates the heat range with the last digit of the part number. Find a Battery Stockist Search for your local battery stockist! . Pulstar indicates the heat range by the number "1" or "2" in the plug number. . Spark Plugs The kind of firepower you expect from ACDelco. Denso plugs get colder the higher the number, hotter the lower the number. . . See cross reference chart for AC Delco R44XLS and more than 80.000 other spark plugs. We also share information about your use of our site with our advertising and analytics partners. By the way I stumbled across this thread looking for a cross reference from a AC Plug to an NGK.....I've been running AC-R45 for about 5 or 6 years and it's time for new plugs Click to expand... Joe look at it like this, if you have a (stock) 250hp 350ci engine and rebuild it to be 325hp you should probably drop the heat range to the next colder plug from what you were using. AC Delco 45 NGK B4 AC Delco 46 NGK B4 AC Delco 12556183 NGK PTR5C-13 AC Delco 40TS NGK R5674-7 AC Delco 41-101 NGK ITR4A-15 AC Delco 41-2XLS NGK BPR7ES AC Delco 41-4XLS NGK BP6ES AC Delco … Autolite's numbering system does not have a standardized heat range identifier. A one-piece ceramic insulator. The number at the end of the part indicates the gap. For example, BCPR6ES-11 has a heat range of 6. … Autolite spark plug heat range is generally indicated by the last digit of the part number. . The higher the number, the hotter the plug. Spark Plug Heat Range Cross Reference 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.