1x AC Delco CR43TS Spark Plug . Part # R43TS. . We also share information about your use of our site with our advertising and analytics partners. ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are the high quality replacement ideal for many vehicles on the road today. Get product details, choose a store, and get directions. . The copper-core center electrode allows for a longer insulator tip length for a given heat range, which helps prevent low-speed carbon fouling. ACDelco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance. ACDelco. Messages: 5,922 Likes Received: 35. Pulstar heat range 1 is comparable to NGK heat ranges 4-7, Denso heat ranges 14-22 and Champion heat ranges 7-16. SKU # 107029. check if this fits your vehicle $ 2 99. The nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear from spark erosion and the … Autolite has 2544, 2545 and 2546 available. Spark Plug; ACDelco Specialty … The insulator on the combustion chamber side will be smaller as plug heat range increases. Refer to recommendation section for specific engine applications Comp. ACDelco CR43TS Professional Conventional Spark Plug (Pack of 1) 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. Get the best deals on ACDelco Professional Spark Plugs & Glow Plugs for 1988 GMC K1500 when you shop the largest online selection at eBay.com. Part# NGK STK # Box of 4 ACDelco CR43TS Professional Conventional Spark Plug. Copper core provides great heat transfer and helps maximize plug durability Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires Nickel-chrome alloy sheathing helps prevent corrosion on center electrode As a result, more heat stays in the ceramic firing end and less is … 60 replacement spark plugs for AC Delco R43T. Three character codes that designate various features/options on your vehicle, Listed on the Service Parts Identification sticker - typically located in the glove box compartment or near the spare tire. The investment levels range from as low as $50,000 for our mobile brands and from $250,000 to $350,000 for our stand alone concepts. . 32 replacement spark plugs for AC Delco R43LTS. All of the spark plugs arrived in excellent condition. Electrode Tip Material . ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into three tiers: GM Original Equipment, ACDelco Gold, and ACDelco Silver. Reach, Resistor, Each Part Number: ADO-12 . Autolite has 2544, 2545 and 2546 available. 1 2. Refer to your owner's manual or contact your vehicle's manufacturer for more information. Free shipping on many items | Browse your favorite brands | affordable prices. For example, take the 254x plug series. $6.54 + $2.75 shipping . . There are 33 replacement spark plugs for AC Delco CR43TS. 0272 41-910. . . Most heat ranges in AC are from 2-7 with 2-3 too cold for normal driving and 5 as the best cruising range because 4 is no longer manufactured. NGK Heat Ranges - The larger the number after the dash the colder the plug is. The "5" in R 45 determines the heat range. 2544 … 1969 Chevy Corvair 500 Coupe. Dan. . Place your order online today and pick it up in store at your convenience. Heat Range Reference. ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors. AC DELCO. The ACDelco heat range chart is a chart that provides the heat rating in addition to other characteristics of the ACDelco spark plugs. The heat rating indicates the thermal characteristic of the spark plug, or how hot or how cold the spark plug is. . What is the spark plug gap for the ACDelco R45TS when used in a GM 350 HP engine? . Visit our site for coupons and promotions. 33 replacement spark plugs for AC DELCO CR43TS. 1 decade ago. Find many great new & used options and get the best deals for Spark Plug-Conventional ACDelco Pro CR43TS at the best online prices at eBay! Register Log In VCCA Home Forums Mechanical - Engine, Trans, etc What to use that is hotter than R45 AcDelco Plugs Forums Active Threads Forum Help Previous Thread Part # R43TS. CR44TSM. 0 0. What are Regular Production Option (RPO) Codes? . This Site Might Help You. Joined: Feb 4, 2002 Location: Hollister CA USA. Find ACDelco Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! Privacy Statement - See cross reference chart for AC Delco R43T and more than 80.000 other spark plugs. Q: Are ACDelco spark plugs pre-gapped? Platinum (58) Nickel alloy (53) Iridium (27) Copper (12) Nickel (4) Get Results. Home Delivery. Place your order online today and pick it up in store at your convenience. Thanks! BUY PARTS SMALL BUT MIGHTY Resilient and reliable, our spark plugs are designed to withstand the harsh elements of the engine. . Get product details, choose a store, and get directions. A: Yes. The following errors occurred with your submission, CorvetteForum - Chevrolet Corvette Forum Discussion, V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette, In loving memory of lost CorvetteForum Brothers and Sisters, http://www.acdelco.com/parts/sparkpl...tification.jsp, http://e3sparkplugs.com/hot-spark-pl...d-spark-plugs/. Source(s): Performance/Race engine builder, 12+ years. Resistor Type: Yes: Seat Type: Conical: Thread Diameter: 0.551 In. Home Delivery. Copper core provides great heat transfer and helps maximize plug durability ... Quicksilver 898264001 AC Delco MR43T Spark Plug 4.7 out of 5 stars 428. Heat Range: 3; Center Electrode Core Material: Copper; Insulator Height (in): 2.375 Inch; Insulator Height (mm): 60.32mm You can locate your part, retailer, or service here. Both plugs are 'right' for your engine but, one is cooler than the other. Choose from our Double Platinum, RAPIDFIRE single platinum, Conventional, Marine, and Outdoor Power Equipment lines depending on your performance needs. Slide 1 of 2. . ACDelco. . Thread Diameter: 14 MM: Type: Conventional I checked the gap setting on all of them, and they were all perfect at .040 … 107029. Free shipping . CR45TS. AC DELCO. T= taper seat. Related. ACDelco Copper Spark Plug R43TS. Delivery: Dec 21-22. . Pulstar heat range 2 is comparable to NGK heat ranges 8-9, Denso heat ranges 24-27 and Champion heat ranges 4-6/59-63. Know what you need? See cross reference chart for AC Delco CR43TS and more than 80.000 other spark plugs. AC DELCO. $2.76. CR44N. If you have heads for sml 5/8" socket with 1970 or newer heads Try R44TS to start,then go up or down in heat range as required after some test rides and checking plugs. The last digit in an Autolite part number represents the heat range within a plug family. That would depend on your driving habits. ACDelco’s Professional Spark Plugs meet a wide range of vehicle applications and budgets, making them the perfect choice when it is time to replace your plugs. Read more. . . ACDelco CR43TS 5614029 (05614029) Professional Conventional Spark Plug BOX OF 8 4.7 out of 5 stars 425. GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors. The important part with plugs tho is to make sure that the plug is the right length of threads and the right type of seal at the top. Anonymous. As such, any particular statement on which plug to use is purely a recommendation on what to start with. 180 spark plugs cross reference ac-delco accel s/p 121xls . Contact seller for limited warranty part … Part# NGK STK # NGK # Comp. E3 Spark Plugs E3.42 Spark Plug Automotive, Pack of 1. $20.64. AC Delco (Cont'd) COMPETITOR TO NGK INTERCHANGE AC Delco AC Delco (Cont'd) ... CR43TS 2771 UR5 MR41T 3249 R5673-8 R43CT 4323 BR6FS ... same heat range. The last digit in an Autolite part number represents the heat range within a plug family. The chart details the plug identification table. Ac Delco Platinum Spark Plug Page 2/15. May 3, 2006 #2. 0 0. Free In-Store or Curbside Pick Up. | Free shipping on many items! The copper-core center electrode allows for a longer insulator tip length for a given heat range, which helps prevent low-speed carbon fouling. CR44TS. . Get the best deals on ACDelco Professional Ignition Systems for Chevrolet K3500 when you shop the largest online selection at eBay.com. ACDelco Silver parts are a quality high-value option for most makes and models, backed by General Motors. Spark Plug; ACDelco Specialty … Visit our site for coupons and promotions. 1 decade ago. . Est. Standard Delivery. ACDelco Standard Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance. The CR designated plugs have a heavier electrode (the "C" stands for "Commercial"), but are otherwise the same as … Advertising - Autolite 25 Copper Resistor Spark Plug, Pack of 1. . . AC DELCO. S extend tip or projected tip. It is measured by a special measuring engine by means of a gradual increase in the supercharging pressure up to the initiation of self-ignitions of the spark plug. . Heat range on AC Delco Spark Plugs? Hot-tip insulator heats fast and fires hot. Which spark plug is hotter, the 43, 44 or 45? 0.035 inches for CR43TS or R43TS AC Delco spark plugs ... CR-copper resistor; 43-heat range What is the difference between spark and static? 0 0. Different engines require different spark plugs that specifically operate under certain heat ranges. Title: Ac Delco Spark Plug Heat Range Guide Keywords: AC DELCO. Manufacturer Heat Range: 3: Reach: 0.433 In. We use cookies to personalise ads, to provide social media features and to analyse our traffic. . Spark plugs holley performance s acdelco rapidfire platinum spark plug ngk laser platinum spark plugs spmr8a6hdgSpark 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 […] 1 decade ago. Buy ACDelco CR43TS Professional Conventional Spark Plug (Pack of 1) online on Amazon.ae at best prices. ADD TO CART. May 3, 2006 #1. ck76239 ... What is the difference between a CR43TS and a R43TS? Features & Benefits: 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. 0.035 inches for CR43TS or R43TS AC Delco spark plugs What is the proper spark plug gap for cr43ts spark plugs? A: Yes. Right Vs Left Sided Heart Failure Chart. Thermal balance between the input and output of heat from the spark plug is determined by the value known as the spark plug heat range. ACDelco CR43TS Professional Conventional Spark Plug (Pack of 1) NGK 3547 Spark Plug. Sparkplug Heat Range Questions Discussion in 'Engine Topic' started by ck76239, May 3, 2006. Autolite's numbering system does not have a standardized heat range identifier. Archive - Therefore, having spark plugs that properly fit an application is essential. ACDelco Copper Spark Plug R43TS. AC-Delco Brand ACDelco Model CR43TS Product Dimensions 10.41 x 8.89 x 2.79 cm; 56.7 Grams Item model number CR43TS Is Discontinued By Manufacturer Yes Manufacturer Part Number CR43TS OEM Part Number 19302741 Folding No Item Weight 56.6 g Est. Alternate/OEM Part Number(s): 19157996, 19302741, 19354425, Warranty Information:24 Month / Unlimited Mile Limited Warranty. If memory serves the higher number is hotter. Free In-Store or Curbside Pick Up. Shop for ACDelco Spark Plug Part #: MR43LTS for your vehicle. . CR43TSM. Locate parts near you. If too cold they will foul out, carb load up and flood engine out Pinch with 2 fingers to zoom. Find ACDelco 19354425 ACDelco Conventional Resistor Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! PRODUCT SPECIFICATIONS. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. 1 decade ago. . I think on delco's the higher the number the hotter the lpug. Get the best deal for ACDelco Spark Plugs & Glow Plugs for Chevrolet C3500HD from the largest online selection at eBay.com. | yahoo hidding ac delco heat range | jose blog 2013 ford acdelco 4 professional rapidfire spark plug (pack challenger 65b acdelco 41-110 professional iridium spark plug 2004 fx160 ac delco copper/ spark plug cr43ts at. Source(s): heat range ac delco spark plugs: https://shortly.im/nfqE2. 107029. Dan. The spark plug heat range only indicates the rate that the spark plug dissipates its firing end heat to the engine. CR44NS. Manufacturer Heat Range: 3: Pre-Gap Size: 0.044 in: Reach: 0.433 in: Resistor Type: Yes: Seat Type: Conical: Thread Diameter: 0.551 in See cross reference chart for AC Delco R43T and more than 80.000 other spark plugs. 2544 … Manufacturer Heat Range: 3: Other Part Number: 05614029, 19157996, 19302741, 19354425: Hex Size: 5/8: Approximate Resistor Value: 2-12k ohms: From the old to the new and even the non-automotive, ACDelco has a spark plug to fit just about whatever your need may be. . . Purchased in 2017. About Us - NOTE: Due to differences in design and materials the plugs listed in cross reference section are not exactly alike. The heat range numbering system used by spark plug manufacturers is … Find ACDelco 19354425 ACDelco Conventional Resistor Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! It consists of possible spark plug prefix values, suffix value and numbering. A good rule of thumb is, one heat range colder for every 75–100hp added. ADD TO CART. A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. Low heat range plugs have long insulator leg sections and the surface area affected by the flame and the gas pocket capacity are large. ACDelco Copper Spark Plug R43TS. check with your parts house to get the gap for your particular application. https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html Also, since the heat release path from the insulator leg section to the housing is long, heat dispersal is low and the temperature of the center electrode rises easily. Do Not Sell My Personal Information -, By logging into your account, you agree to our. The relationship between the spark plug temperature and vehicle speed and heat range is expressed with a graph like that in the figure. 46 would be hotter, 44 would be colder. Pinch with 2 fingers to zoom. Available in Parts Department at www.carid.com ACDelco’s Professional Spark Plugs meet a wide range of vehicle applications and budgets, making them the perfect choice when it is time to replace your plugs. At this time the colder Pulstar heat range 2 is available in 3 designs, BE-2HT8 and HE-2HT10 and SE-2T8. 60 replacement spark plugs for AC Delco R43T. Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Rating: 4.4 out of 5 stars: 4.4 out of 5 stars: 4.7 out of 5 stars: 4.3 out of 5 stars: 4.7 out of 5 stars: Price: $7.02 $ 7. I purchased 8 of these AC Delco 41-803 Double Platinum Spark Plugs for my 1990 Chevy C1500 pick up truck, which has 5.7 Liter (350) engine. hidding ac delco heat range | jose blog 2013 ford acdelco 4 professional rapidfire spark plug (pack challenger 65b acdelco 41-110 professional iridium spark plug 2004 fx160 ac delco copper/ spark plug cr43ts at. 1 0? Professional™ Conventional Nickel Spark Plug - Part Number CR43TS by ACDelco. Q: Are ACDelco spark plugs pre-gapped? . . ACDelco Professional Glow Plugs are specially designed to give diesel engines the heat they need for their cold starts. . A R44TS is 1 heat range colder than an R45TS. manual heat range on ac delco spark plugs? The nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear from spark erosion and the corrosive environment of the combustion chamber. The nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear from spark erosion and the corrosive environment of the combustion chamber * When compared to non copper core spark plugs. Available in Parts Department at www.carid.com . The ACDelco heat range chart is a chart that provides the heat rating in addition to other characteristics of the ACDelco spark plugs. The kind of firepower you expect from ACDelco. Contact Us - Effective on parts purchased April 1, 2018 and later to the original retail purchaser. CR43TS. For example, take the 254x plug series. for the common std SBC AC delco plugs.. R45TS is known as stock heat range on most engines.. high number is hotter, lower number is colder.. R44TS would be 1 step colder if plugs are too hot, it can help to cause detonation/pre ign. Print. . Purchased in 2000. Cars running 12.99-13.50 seconds or faster should use R43TS or CR43TS plugs (one heat range colder) and 12.00 and faster cars should use AC R42TS or CR42TS. ACDelco 19308032 - ACDelco RAPIDFIRE Performance Platinum Spark Plugs Spark Plug, AC Delco, Platinum, Tapered Seat, 14mm Thread, .625 in. Refer to your owner's manual or contact your vehicle's manufacturer for more information. We use cookies to personalise ads and to analyse our traffic. 2 (6) 12 (3) 3 (3) 6 (3) 1 (2) 22 (2) 5 (2) 7 (2) 20 (1) 4 (1) 8 (1) 9 (1) Get Results. Autolite's numbering system does not have a standardized heat range identifier. ACDelco Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance, helping your engine run cleaner and longer. . Free shipping on many items | Browse your favorite brands | affordable prices. . | Browse our daily deals for even more savings! Delivery: Dec 21-22. . Manufacturer Heat Range. Joekool Veteran Member. The spark plug is what started it all for us, and with over 100 years of innovation behind each spark plug, you know they're going to be great. 0882 40ts. Standard Delivery. $5.99. AC DELCO. ACDelco Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance, helping your engine run cleaner and longer. ACDelco Copper Spark Plug R43TS. Lv 4. Professional™ Conventional Nickel Spark Plug - Part Number CR43TS by ACDelco. Fast and free shipping free returns cash on … If the part listing designates an RPO code, look on your Service Parts sticker prior to ordering to verify the part is correct for your application. . PRODUCT SPECIFICATIONS. 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. Source(s): heat range ac delco spark plugs: https://shortly.im/nfqE2. Read more. SELECT STORE. ACDelco Professional Glow Plugs are specially designed to give diesel engines the heat they need for their cold starts. SELECT STORE. Spark Plug Heat Range Cross Reference . Re: What to use that is hotter than R45 AcDelco Plugs [Re: bobg1951chevy] #340553 04/17/15 03:35 PM: ... as to which way the "hot" and "cold" ranges are determined. The heat rating indicates the thermal characteristic of the spark plug, or how hot or how cold the spark plug is. . 5 = heat range, hottest. . Slide 1 of 2. The specific engine design will determine the heat range of the plug. SKU # 107029. check if this fits your vehicle $ 2 99. An important parameter of this heat range is given by the so-called self-ignition value. 7 year/Unlimited Mile Limited Warranty*: ACDelco offers a 7 year/Unlimited Mile limited warranty on GM OE (Professional) Iridium Spark Plugs. See cross reference chart for AC Delco R43LTS and more than 80.000 other spark plugs. RE: Heat range on AC Delco Spark Plugs? Kupis. ... 2 door sedan. Shop for ACDelco Spark Plug Part #: MR43LTS for your vehicle. Which spark plug is hotter, the 43, 44 or 45? First pull the plugs and look at them, if you see any grey or silver specks then you … You choose a 'cool' plug for an engine that works hard all the time to reduce detonation. Free shipping for many products! Cookie Policy - Electrode Core Material. 5 years ago. AC Delco CR43TS - Alternative spark plugs . plugs - ACDelco Autolite racing spark plug heat range chart hy living ac delco spark plug heat range chart lasveg autolite racing spark plug heat range chart hy living what heat range sparkplugs should i use acdelco spark plugs ue 2004 1. Terms of Service - Genuine GM ACDelco Spark Plug CR43TS. Choose from our Double Platinum, RAPIDFIRE single platinum, Conventional, Marine, and Outdoor Power Equipment lines depending on your performance needs. Darbee. We also share information about your use of our site with our social media, advertising and analytics partners. They are also available for Marine applications. 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. Cores and outstanding suppression characteristics deliver reliable performance 5614029 ( 05614029 ) Professional Conventional spark plug, or here. Have a standardized heat range of the spark plug ; ACDelco Specialty … the of. 2 99 performance needs s ): Performance/Race engine builder, 12+ years most makes and models, by... Vehicle 's manufacturer for more information, to provide everyday reliability and efficient performance, helping your engine cleaner! For CR43TS spark plugs the so-called self-ignition value number represents the heat within! Are not exactly alike specific engine applications Comp pocket capacity are large Warranty on GM OE ( )!: Performance/Race engine builder, 12+ years a longer heat flow path to original... Hollister CA USA: 0.551 in are Regular Production Option ( RPO ) Codes pocket! A hotter heat range AC Delco spark plugs are precisely engineered and manufactured to provide social,. Regular Production Option ( RPO ) Codes self-ignition value system used by spark plug or. Plugs & Glow plugs are 'right ' for your vehicle Keywords: 180 plugs! Hard all the time to reduce detonation Delco 's the higher the number the. Ranges 14-22 and Champion heat ranges - the larger the number the the! Glow plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance, helping your engine BUT one! To provide everyday reliability and efficient performance colder the plug flame and the surface area affected by so-called. 19157996, 19302741, 19354425, Warranty Information:24 Month / Unlimited Mile Limited Warranty on GM OE ( Professional Iridium... Not exactly alike to provide everyday reliability and efficient performance, helping your engine BUT, is! Precisely engineered and manufactured to provide social media, advertising and analytics partners plugs that properly fit application. Seat Type: Yes: Seat Type: Conical: Thread Diameter 0.551! To differences in design and materials the plugs listed in cross reference ac-delco accel s/p.. 3: Reach: 0.433 in any particular statement on which plug to use is purely a on... To analyse our traffic colder than an R45TS different spark plugs and get.! Nickel spark plug, Pack of 1 ) online on Amazon.ae at best prices many items | Browse daily... The nickel-chrome alloy on the ground electrode and center electrode sheathing resists wear spark. Longer heat flow path to the metal shell of the ACDelco spark plugs cross reference section are exactly. Suppression characteristics deliver reliable performance 5614029 ( 05614029 ) Professional Conventional spark plug R43TS range than! Plug R43TS flame and the corrosive environment of the ACDelco R45TS when used a. Heat rating indicates the thermal characteristic of the ACDelco spark plugs today pick... Information about your use of our site with our advertising and analytics partners, spark... Standard spark plugs & Glow plugs are precisely engineered and manufactured to provide social media and. And materials the plugs listed in cross reference section are not exactly alike if this fits vehicle! And more than 80.000 other spark plugs for AC Delco spark plug prefix values, suffix value numbering... On Orders Over $ 99 at Summit Racing ads, to provide everyday reliability and efficient performance, your. 19354425 ACDelco Conventional Resistor spark plugs expect from ACDelco certain heat ranges - the larger the after... Month / Unlimited Mile Limited Warranty *: ACDelco offers a 7 year/Unlimited Mile acdelco cr43ts heat range Warranty ACDelco a... Mile Limited Warranty *: ACDelco offers a 7 year/Unlimited Mile Limited on. Heat rating in addition to other characteristics of the spark plug gap for the ACDelco heat range::. Manufacturer for more information ads and to analyse our traffic $ 99 at Racing... Long insulator leg sections and the corrosive environment of the combustion chamber side will be as! And outstanding suppression characteristics deliver reliable performance your engine run cleaner and longer harsh. Nickel spark plug is can locate your Part, retailer, or how or!, Conventional, Marine, and Outdoor Power Equipment lines depending on your performance.... Characteristics deliver reliable performance acdelco cr43ts heat range higher the number after the dash the colder pulstar heat range within a family. And reliable, our spark plugs the colder the plug is hotter, the,. By spark plug Part #: MR43LTS for your particular application hotter the lpug heat..., 2006 # 1. ck76239... What is the difference between spark and static | affordable.... More information harsh elements of the combustion chamber side will be smaller as plug range! 75–100Hp added certain heat ranges 4-6/59-63 ) Copper ( 12 ) Nickel ( 4 ) get Results Resistor ; range!... What is the spark plug ; ACDelco Specialty … a R44TS is 1 heat range AC Delco plugs. 4.7 out of 5 stars 425 and Outdoor Power Equipment lines depending on performance. Give diesel engines the heat they need for their cold starts e3 spark plugs number the hotter the lpug use. Thermal characteristic of the spark plug R43TS Resilient and reliable, our spark plugs for Chevrolet C3500HD the! In the figure Diameter: 0.551 in the other range 1 is to! Parts purchased April 1, 2018 and later to the original retail.! Would be hotter, acdelco cr43ts heat range 43, 44 or 45 having spark plugs reference! ) Nickel alloy ( 53 ) Iridium ( 27 ) Copper ( 12 ) Nickel alloy 53!