Ac delco heat range spark plug charts

It is a common misconception that spark plugs create heat. They don’t. the spark plug heat range only indicates the rate at which the spark plug dissipates its firing end heat to the engine. Selecting a spark plug with the proper heat range will ensure that the tip will maintain a temperature high enough to prevent fouling, yet be cool enough ...

ACDelco GM Genuine Parts Iridium Spark Plugs 12681659. Spark Plug, Iridium Tip, Copper Core, Tapered Seat, 16mm Wrench Diameter, One Ground Strap, 0.984 in. Reach, Each. Part Number: ADO-41-125. Not Yet Reviewed. Estimated Ship Date: Jun 17, 2024 (if ordered today)Ac delco spark plugs for 4.3lAc delco spark plug chart heat range Ngk plugs delcoSpark plugs. Dayton auto and memorabilia museumAc delco spark plug application guide Amazon.com: acdelco 32g professional glow plug (pack of 1): automotiveAc delco spark plug application chart.AC Delco 41-627 or 41-629. In the early 1990s, an all-numeric, identification code was developed to ensure that the proper spark plug would be selected for … Heat Range: 12. Hex Size (mm): 16mm. Hex Size (in): 5/8 ... ACDelco Rapidfire Platinum Spark Plug - 15. Part #: 15 Line: ACD Aug 23, 2004 · Other way around 43 is hotter than 44, do a search for spark plug cross reference on the internet I found a very good that lists just about every plug made and their heat ranges. Reply Like. 08-23-2004, 01:50 PM. # 3. Paul L.

Mar 9, 2021 ... After significant efforts to isolate a persistent misfire, I have come across one more hurdle to overcome. In today's world, you need to be ...ACDELCO R43 Specifications. ACDelco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance. A copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability you're looking for while improving its resistance to low-speed carbon fouling.Download. ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications.Apr 15, 2023 · Ac Delco Spark Plug Application Guide | Free Nude Porn Photos. Plug reference chart spark cross range heat accel champion academia pdf edu Plug acdelco spark iridium ac chart delco plugs 41 heat professional pro gm amazon each set warranty additional parts read [infographic] spark plug heat range chart Get up to a $48 mail-in rebate on qualifying ACDelco Spark Plug purchases: $3 REBATE for each ACDelco GM OE Iridium Spark Plug. $2 REBATE for each ACDelco OE or Gold Double Platinum Spark Plug. $1 REBATE for each ACDelco Gold Rapidfire Single Platinum Spark Plug. $0.50 REBATE for each ACDelco OE or Gold Conventional Spark Plug.

The spark plug is what started it all for ACDelco. Now, with over 100 years of innovation behind each spark plug, you know you’re covered. From the old to the new and even the nonautomotive, ACDelco has spark plugs to fit just about every need. ACDelco Regular Spark Plugs are precisely engineered and manufactured to provide everyday ... A spark plug’s heat range is the degree to which it disperses heat. Spark plugs with high heat dispersal are referred to as cold, while plugs with less heat-dissipating characteristics are known as hot. The structure of the spark plug affects the heat rating: Length of insulator nose. Surface area. Material of center electrode. Specialized Ac Delco Spark Plugs Heat Range Chart manufacturer in China, if you want to buy Ac Delco Spark Plugs Heat Range Chart, please contact us. Company Details LIXIN INDUSTRIAL & TRADE CO.,Limited [Zhejiang,China] Business Type: Manufacturer , Trade Company Main Markets: Worldwide , Africa , Asia , Europe Exporter: 61% - 70% Certs ... What is Spark Plug Heat Range? A spark plug’s heat range is the degree to which it disperses heat. Spark plugs with high heat dispersal are referred to as cold, while plugs with less heat-dissipating characteristics are known as hot. The structure of the spark plug affects the heat rating: Length of insulator nose. Surface area.(2) Plug specifications (design, materials, etc.) varies according to manufacturer. (3) Choose your plug model by referring to the vehicle model compatibility table. (4) When choosing a plug model for tuning vehicles and vehicles not listed in the vehicle model compatibility chart, the customer is responsible for determining the correct plug.

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Spark plugs, glow plugs, household plugs, industrial plugs, and spark plugs for marine. Spark plugs, glow plugs, marine plugs, racing plugs, and plugs for household applications: Heat Range (colder) 43 55: Plug gaps: Properly gapped: Not gapped: Compatibility: Optimum for General Motors cars, Chevy, Buick, Cadillac, discontinued, and non-GM carsspark plug heat range. Jump to Latest Follow 29K views 3 replies 3 participants last post by sqzbox Sep 16, 2010. S. sqzbox Discussion starter 3162 posts · Joined 2009 Add to quote; Only show this user #1 · Sep 15, 2010. When I put my 350 together 2 yrs ago, I used AC R44TS plugs. ...Replacement spark plugs for AC DELCO CR43TS on Amazon. ACDelco CR43TS 5614029 (05614029) Professional Conventional Spark Plug BOX OF 8. USD 24.53. ACDelco Professional CR43TS Conventional Spark Plug (Pack of 1) USD 2.79. Denso (5331) ITF20 Spark Plugs, Pack of 4. USD 28.50.An AC Delco 41-110 is an iridium-single electrode, NGK spark plug with a diameter of 0.651″, has a lifespan of 53000 miles to 82000 miles, and is adjustable in Silverado combustion engine. It improves fuel economy from 12% to 14%, has low heat resistance can cost around $12 to $16. However, a 41-162 is a Denso plug with a single iridium ...With coverage for most older vehicles on the road today and robust design, ACDelco Regular Spark Plugs are an economical choice for solid performance. Technical Download (PDF) Catalogue Flyers Warranty. ... The copper-core center electrode allows for a longer insulator tip length for a given heat range, which helps prevent low-speed carbon ...1965 autolite spark plug racing heat range chart book. Ac delco spark plug heat range chartChampion spark plugs heat range chart 1965 autolite spark plug racing heat range chart bookAutolite bosch ngk accel plugs iridium brisk denso yttrium resistor groove oe truckid w0133 authorized powersportsid n5 civic savana lgs.

performance may result. See your local installer or retailer for details. The prefix “41” stands for the manufacturer’s product line (e.g., 41 = spark plug). Numbers. after the prefix indicate the type of spark plug and also the specific application: · 100 – 199 = Iridium. · 600 – 699 = Resistor.Mar 29, 2010 · Which plug is hotter? AC Delco 41-627 or 41-629. In the early 1990s, an all-numeric, identification code was developed to ensure that the proper spark plug would be selected for replacement in specific engine applications. The numeric code does not in any way correspond to the heat range of the spark plug. Check condition of old spark plugs and driving conditions of application and adjust heat rating if appropriate. To function correctly, spark plugs need to operate hot enough to burn off deposits, and remain below pre-ignition temperature. INSTALLATION GUIDE. ACDelco RAPIDFIRE platinum spark plugs fit engines that require conventional or platinum plugs—offering quicker throttle response, smoother idle, better corrosion protection, and greater longevity when compared to conventional plugs. ... Manufacturer Heat Range. 12 (4) 8 (2) 1 (1) 14 (1) Get Results; Electrode Core Material. Copper (12 ...ACDelco Iridium Spark Plugs are the latest evolution in high-performance plug electrode material and are designed to last 100,000 miles.* Iridium is one of the hardest materials used in spark plugs today, which allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration.The relationship between the spark plug temperature and vehicle speed and heat range is expressed with a graph like that in the figure. There are restrictions on the temperatures at which spark plugs can be used: the lower limit is the self-cleaning temperature and the upper limit is the pre-ignition temperature.A spark plug only functions completely when …Delco ac chart plug plugs reach colder looking lt edit saysAc delco spark plugs for 4.3l Stock volkswagen engine bosch super plus wr8ac spark plug 14mm thread 1Cant find ac plug heat range chart..... Acdelco 14155s professional molded heater hose, heaterAutolite spark plug heat range chart tabla de grados â· autoliteâ Ac delco …[V] Shell Design - This refers to the thread size and reach of the spark plug. [15] Heat Range - The middle number indicates the heat range of the spark plug, the higher the number the hotter the heat range. [YC] Firing End Design - The letters after the heat rating indicates a special spark plug construction feature called the firing end ... Do you need to convert the heat range of your spark plugs? NGK.com has a handy heat range conversion chart that can help you find the right NGK product for your engine. Whether you need standard, racing, or iridium spark plugs, NGK.com has them all. Visit NGK.com today and get the best deals on hard to find NGK products.

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Cooler spark plugsAc delco "7" spark plugs Cant find ac plug heat range chart....Ac delco spark plugs for 4.3l. Ac Delco Plug Chart Check Details Ac delco spark plug application guide. Ac delco spark plug chartSpark plug heat range and what you need to know Ngk spark plug heat range chartSpark acdelco delco equipment …ACDelco GM Original Equipment R45TS Conventional Spark Plug. USD 2.17. AC Delco R45TS Spark Plug Set of 8 for Chevy GMC Buick Cadillac Pontiac Olds. USD 27.44. Denso (5330) ITF16 Spark Plugs, Pack of 4. USD 29.08. Denso (5330) ITF16 Iridium Power Spark Plug, (Pack of 1) USD 8.12. Champion Copper Plus 18 Spark Plug RV15YC4.HEAT RANGE CHART - COPPER PLUS SPARK PLUG / STOCK NUMBER Federal-Mogul Document #1521 Thread Size Heat Range Non-Resistor Stock No. Resistor Stock No. Non-Resistor Stock NO. Resistor Stock No. 10mm 1/4" Rch. 5/8" Hex NORM UY6 842 Auxiliary Gap 10mm 5/16" Rch. NORM Y82 877 14mm Hex 10mm .492" Rch. HOT 5/8" Hex COLD Z6 889 Z9Y 808 10mm 1/2" Rch ...Spark delco nairneSpark plug range delco Battery acdelco chart warranty advantage vw eurovan fits iiAc delco spark plug application guide. Kozy Heat Slayton 42 Reviews: R45ts Spark Plug Heat Range Check Details Delco ac chart plug plugs reach colder looking lt edit says.. Autolite® 4302 - Copper Spark Plug - … The shorter the path, the faster the heat is dissipated and the cooler the plug. Heavy Loads / High Speeds • SHORT Insulator Tip • Fast Heat Transfer • LOWER Heat Range • COLD PLUG The longer the path, the slower the heat is dissipated and the hotter the plug. Short Trip / Stop-and-Go • LONG Insulator Tip • Slow Heat Transfer Which spark plug| repair guides Spark plug ac heat range plugs delco numbering system chart forum k10 equivalent modern rods hot forums corvetteforum replyPlug acdelco spark iridium ac chart delco plugs 41 heat pro each gm amazon professional glow parts warranty read comparison. Ngk Bpr6es Spark Plug Cross …AC Delco car batteries are sold at a large number of retailers. To find the nearest retailer, simply go to their website and enter your zip code at the top of the page. It will red...An ideal plug for vehicles requiring platinum performance or older vehicles calling for regular plugs, ACDelco’s Double Platinum Spark Plugs can give up to 100,000 kms# of service in some applications. # Maintenance needs vary with different uses and conditions. See Owner’s Manual for more information.

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The range of thermal values for BRISK spark plugs extend from the warmest to the coldest, namely 19, 18, 17, 15, 14, 12, 10 and 08. "Hot" spark plugs remove heat from the combustion area relatively slowly. They have a longer insulator tip and they achieve a temperature higher than the deposition zone relatively fast.The heat range of a spark plug is the range in which the plug works well thermally. The heat rating of NGK spark plugs is indicated by a number; lower numbers …Older small-block Chevys used a short thread reach (right) of .430-inch, while later small-block plugs beginning in the late ‘80s lengthened this spec to .680-inch (left), which is now also standard for Gen III and IV GM LS engines. GM’s Gen V engines have pushed this now to nearly an inch at .980-inch.An AC Delco 41-110 is an iridium-single electrode, NGK spark plug with a diameter of 0.651″, has a lifespan of 53000 miles to 82000 miles, and is adjustable in Silverado combustion engine. It improves fuel economy from 12% to 14%, has low heat resistance can cost around $12 to $16. However, a 41-162 is a Denso plug with a single iridium ...Ac delco r44t conventional spark plug | repair guides Hot rods. Cant find AC plug heat range chart.... - Hot Rod Forum : Hotrodders. Delco ac chart plug plugs reach colder looking lt edit says Heat range plug chart ac spark cant find hotrodders forum hot reference size cross go Accel autolite ngk spark plug plugs brisk iridium denso … Specialized Ac Delco Spark Plugs Heat Range Chart manufacturer in China, if you want to buy Ac Delco Spark Plugs Heat Range Chart, please contact us. Company Details LIXIN INDUSTRIAL & TRADE CO.,Limited [Zhejiang,China] Business Type: Manufacturer , Trade Company Main Markets: Worldwide , Africa , Asia , Europe Exporter: 61% - 70% Certs ... The range of thermal values for BRISK spark plugs extend from the warmest to the coldest, namely 19, 18, 17, 15, 14, 12, 10 and 08. "Hot" spark plugs remove heat from the combustion area relatively slowly. They have a longer insulator tip and they achieve a temperature higher than the deposition zone relatively fast.The ac delco spark plug decoder tableAmazon.com: acdelco r43ts professional conventional spark plug (pack of Heat range spark plug chart plugs ngk ac champion forums ranges reference cross pelicanparts porsche temperature vs forum find sizeSpark plug info.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 … ….

more heat, low heat dissipation. k Spark plug with medium heat-range code number. Insulator nose area smaller than in “hot plug.” Lower heat absorption, better heat dissipation. l Spark plug with low heat-range code number (“cold plug”). Smaller insulator nose area absorbs little heat. Very good heat dissipation through short thermal ...Feb 17, 2004 · Feb 23, 2004. #13. Actually, Most, if not all of the new style AC-Delco Rapidfire plugs are platinum. AC-Delco phased out the old style copper core Rapidfire plugs that had the serated center electrode. I'm running the new platinum Rapidfire in my 98 Chevy truck with the 5.7L and they seem to work very good. Heat Range Chart VDL Fuel System's Spark Plug Heat Range Recommendations Note that these heat ranges are Champion's numbers and can be converted to the equivalent plug for any major brand. ... ACDelco; gmparts.com; Autolite; (855) 200-5200; autolite.com; Bosch; (888) 715-3616; boschautoparts.com; Brisk …ACDelco Iridium Spark Plugs are the latest evolution in high-performance plug electrode material and are designed to last 100,000 miles.* Iridium is one of the hardest materials used in spark plugs today, which allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration.Download. ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications.Spark Plug Heat Range Chart : Cobb Carpet Supply, Online Sales. Check Details. Heat range plug chart ac spark cant find hotrodders forum hot reference size cross go. Ac delco heat range chartSpark plug range delco Heat delco plugs kozy slaytonSpark plug briggs stratton. Heat range chart for ngk spark plugsHeat spark …We would like to show you a description here but the site won’t allow us.Visually inspect spark plugs for signs of wear. Follow these steps to remove spark plugs for inspection, servicing or replacement: Grasp the spark plug boot and gently rotate it 90 degrees counterclockwise. Pull the spark plug boot and cable away from the spark plug. If necessary, use a spark plug boot removing tool.USD 16.99. Replacement For (Pack of 4) Champion Spark Plugs for AC Delco 41-602 41602 41-603 41603 Motor. USD 19.99. ACDelco GM Original Equipment 41-602 Conventional Spark Plug. USD 2.24. ACDelco GM Original Equipment 41-602 Conventional Spark Plug (Pack of 2) USD 4.48. BKR7E 4644 V-Power Spark Plugs, 4 …Points ignition systems can use up to .030” to .035” spark plug gap for stock or mild performance applications. High energy electronic ignitions such as GM HEI, Ford Duraspark, Ford TFI, and Mopar electronic ignitions can use up to .040” to .045” spark plug gap for stock or mild performance applications. Ac delco heat range spark plug charts, Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . long-lasting performance, time and time again. Patented, one-piece insulator design - withstands temperature pressure and vibration. The copper core electrode - helps transfer heat, which is important for today's smaller hotter-running engines., 707773443538. Our Price: $10.99. Current Stock: 48. Quantity: Description. Additional Details. ACDelco 12621258 41-110 Iridium Spark Plug. ACDelco Professional Iridium Spark Plugs are a high quality replacement ideal for many vehicles on the road today., Spark delco nairneSpark plug range delco Battery acdelco chart warranty advantage vw eurovan fits iiAc delco spark plug application guide. Kozy Heat Slayton 42 Reviews: R45ts Spark Plug Heat Range Check Details Delco ac chart plug plugs reach colder looking lt edit says.. Autolite® 4302 - Copper Spark Plug - …, Heat Range: 12. Hex Size (mm): 16mm. Hex Size (in): 5/8 ... ACDelco Rapidfire Platinum Spark Plug - 15. Part #: 15 Line: ACD , Massachussetts. Feb 14, 2005. #3. i dont think so---! An R 45T would be one range hotter--the R 43T is one range COLDER than a R 44T plug---You probably wont notice much difference,its not that great of a jump up --if you are trying to avoid plug fouling from high oil consumption,or a rich mixture you could use non-foulers with the original ..., Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires. Nickel-chrome alloy sheathing helps prevent corrosion on center electrode. Available for use in Marine applications. Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . long-lasting performance, time and time …, AC Delco Spark Plugs. NGK Spark Plugs. Spark Plug Cross Reference Chart: NGK Plugs A – B. Spark Plug Cross Reference Chart: NGK Plugs R – Z. Weeks Motorcycle …, make sure to check the head, I use an r43xls in my bbc this is a large diameter plug with a washer. the ts plug is for tapered seat and the x means extended. 69 chevelle. 408 bb M20 12bolt 3.31. 12.5 @ 107MPH. 72 El Camino all original., As climate change sends heat waves across the globe, the need for better AC systems rises. This article explores some of the new AC systems on the horizon. Expert Advice On Improvi..., Oct 25, 2020 ... I have AC 45 plugs ... 136656d1176322684-cooler-spark-plugs-delco.jpg ... I was simply referring to the plural of plugs with heat range 45 which ..., Performing a bit of simple, routine maintenance on your lawn mower will make it last longer, and keep it running smoothly all summer long. From changing the oil and spark plug to c..., The Ac Delco Spark Plug Decoder Table The Ac Delco Spark. Product Review Racing Technology Ap 22. Auto Parts Spark Plugs And Glow Plugs Acdelco. Upped Comp Pistons What Spark Plugs Third Generation F Body. ... Ngk Heat Range Chart Trinity ..., A spark plug’s heat range is the degree to which it disperses heat. Spark plugs with high heat dispersal are referred to as cold, while plugs with less heat-dissipating characteristics are known as hot. The structure of the spark plug affects the heat rating: Length of insulator nose. Surface area. Material of center electrode. , The spark plug is what started it all for ACDelco. Now, with over 100 years of innovation behind each spark plug, you know you’re covered. From the old to the new and even the nonautomotive, ACDelco has spark plugs to fit just about every need. ACDelco Regular Spark Plugs are precisely engineered and manufactured to provide everyday ..., Plug acdelco spark iridium ac chart delco plugs 41 heat pro each gm amazon professional glow warranty read comparison additional. Cant find ac plug heat range chart....Ngk spark plug plugs codes read reference racing thread engine alfetta chart heat range code denso lexus sym honda malaysia Spark plugsAc delco spark …, Jan 16, 2024 · The Acdelco Heat Range Chart Is A Chart That Provides The Heat Rating In Addition To Other Characteristics Of The Acdelco Spark Plugs. Beagle sort by oldest first j jaguarmkix 17 posts · joined 2008 #2 · mar 29, 2010 they are of the same heat. , Ranges firing speed Tech tip: spark plug heat range cross reference Guide to understanding spark plug heat ranges. Ac Delco Spark Plug Heat Range Chart. Ngk vs. ac delco spark plugs Spark plug delco mancave Spark plug reference cross ngk heat plugs range chart racing garage doors gif friday featured stuff car engine exactly …, Wildfires burn about five million acres in the U.S. every year. Learn about the causes of wildfires, how wildfires behave and how firefighters fight them. Advertisement ­In just se..., Replacement spark plugs for AC DELCO R44LTS6 on Amazon. ACDelco GM Original Equipment R44LTS6 Conventional Spark Plug. USD 9.12. ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1) USD 2.40. ACDelco R44LTS6 19300384 Professional Conventional Spark Plug - Lot of 4. USD 14.99. Denso (5023) T16EPR-U15 Traditional …, Ribless insulator that helps to improve the plug-to-boot seal; Reduced sparking voltage and greater corrosion protection* Tapered center wire electrode with a platinum pad reduces the firing diameter and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage*, The ac delco spark plug decoder tableAmazon.com: acdelco r43ts professional conventional spark plug (pack of Heat range spark plug chart plugs ngk ac champion forums ranges reference cross pelicanparts porsche temperature vs forum find sizeSpark plug info., 707773443538. Our Price: $10.99. Current Stock: 48. Quantity: Description. Additional Details. ACDelco 12621258 41-110 Iridium Spark Plug. ACDelco Professional Iridium Spark Plugs are a high quality replacement ideal for many vehicles on the road today., DOUBLE PLATINUM SPARK PLUGS. An ideal plug for vehicles requiring platinum performance or older vehicles calling for regular plugs, ACDelco’s Double Platinum Spark Plugs can give up to 100,000 kms# of service in some applications. # Maintenance needs vary with different uses and conditions. See Owner’s Manual for more information. , Ac delco spark plug torque chartSpark ngk bosch r10 bougies asianthomas renvois Ac delco spark plug chart heat rangeBriggs stratton hotter davidson suggestion thirdgen forums 71z innovations2019 yarta. ... Ac Delco Spark Plug Chart Heat Range - Best Picture Of Chart Anyimage.Org. Check Details. Delco spark plug question - Hot …, There is no hotter heat range AC Delco Rapid Fire spark plug that is a replacement for a AC Delco #10 Rapid Fire spark plug. The AC Delco #10 is as hot as they come. A conventional copper electrode replacement for an AC Delco #10 Rapid Fire platinum tip spark plug is a AC Delco R43T spark plug. If you want one step hotter than AC Delco R43T ..., Available for use in Marine applications. Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . long-lasting performance, time and time again. Patented, one-piece insulator design - withstands temperature pressure and vibration. The copper core electrode - helps transfer heat, which is important for today ..., Available for use in Marine applications. Smoother ride, reliable performance - ACDelco Spark Plugs boost your vehicle's performance . long-lasting performance, time and time again. Patented, one-piece insulator design - withstands temperature pressure and vibration. The copper core electrode - helps transfer heat, which is important for today ..., The Acdelco Heat Range Chart Is A Chart That Provides The Heat Rating In Addition To Other Characteristics Of The Acdelco Spark Plugs. Beagle sort by oldest first j jaguarmkix 17 posts · joined 2008 #2 · mar 29, 2010 they are of the same heat., Mar 29, 2010 · Which plug is hotter? AC Delco 41-627 or 41-629. In the early 1990s, an all-numeric, identification code was developed to ensure that the proper spark plug would be selected for replacement in specific engine applications. The numeric code does not in any way correspond to the heat range of the spark plug. , The AC Delco Spark Plug Decoder Table Prefix and suffix letters are used to identify a specific type plus the numbers relate to thread size and heat range. For example, the …, and material, plugs produced by various manufacturers do not have exactly the same heat range. Refer to recommendation section for specific engine applications Comp. Part# NGK STK # NGK # Comp. Part# NGK STK # NGK # Comp. Part# NGK STK # NGK # 44 3510 B6S 41-963 7740 PTR5C-13 45FFS 6222 BPR5HS 45 3210 B4 41-965 2467 PTR5A-13 45L 3112 B4L, Onan Spark Plugs: Both the 4K & 6K use the same heat range spark plug. Plug gap for both is .020” Cummins Onan spark plugs are part# 167-0262-99 <$7. The X-‐7525B service manual Section 24C page28 calls for the use of an AC Delco R46S spark plug. Possible spark plugs that cross for AC DELCO R46S:, Do you need to convert the heat range of your spark plugs? NGK.com has a handy heat range conversion chart that can help you find the right NGK product for your engine. Whether you need standard, racing, or iridium spark plugs, NGK.com has them all. Visit NGK.com today and get the best deals on hard to find NGK products.