You could damage the spark plug. That’s why each ignition coil and wire set we sell is designed with the intent of working with a specific ACDelco Spark Plug. Back to Top . 5.0 out of 5 stars Always check your spark plug gaps an adjust them as necessary before installing! ACDelco 41-103 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-127 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-105 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-101 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-125 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-109 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-108 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-107 Professional Iridium Spark Plug (Pack of 1), ACDelco 55564748 Professional Iridium Spark Plug (Pack of 1), ACDelco -12680072 41-110 Professional Iridium Spark Plug (Pack of 4). So I replaced all three items with original ACDelco parts. ACDelco Spark Plug Guide. Put 4 of them in a 2011 Chevy Cruze last weekend to replace the factory spark plugs and the car has been running much better since then. Bottom line: For some unknown reason, the Norfthstar consistently runs better and returns better overall performance when running the recommended AC Delco plug. Product Reviews Spark Plug-Iridium ACDelco Pro 41-993. FREE Shipping by Amazon. It really doesn't matter. AC Delco Spark Plugs - Iridium Professional Spark Plug - 41993. 1 rating. Most recent . Averaging over 4.5/5 stars from reviews around the web and about $5-7 per plug puts these on the high-end of the spectrum. Product Features: Iridium is one of the hardest metals used in spark plugs today, which allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration. 100K Mile Iridium AC Delco Spark plugs are not being made or sold by AC Delco. 13 ratings. Check Latest Price. I bought 6 ACDelco Iridium Spark Plug, 41-103 for my 2003 GMC envoy 4x4. Price is identical, actually the Ruthenium are a few cents cheaper, but that's negligible. Buy Autolite Iridium XP Spark Plugs . Click on products MORE INFO button to explore, or read more, ACDelco 41-109 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-156 Professional Iridium Spark Plug, ACDelco 41-993 Professional Iridium Spark Plug (Pack of 8), ACDelco 41-108 Professional Iridium Spark Plug (Pack of 1), ACDelco 41-162 Professional Spark Plug, 4 Pack, ACDelco 41-103 Professional Iridium Spark Plug (6 Pack), Get exclusive articles, recommendations, shopping tips, and sales alerts, Sign up for our newsletter to receive weekly recommendations about seasonal and trendy products. The Chevy Cruze comes with NGK Laser Iridium Spark Plugs (part number 91039) that are found locally for $13.99 each. Why? Does anyone know if Rock Auto gets their AC Delco plugs from a reputable source. Find ACDelco 19307138 ACDelco RAPIDFIRE Performance Platinum Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! 4. Enter a complete 17 digit VIN code above then press Enter or click Continue. ACDelco Professional Iridium Spark Plugs. Read honest and unbiased product reviews from our users. It can improve the acceleration profile of your vehicle. The Best Motorcycle Spark Plugs (Review) in 2020. The super fine electrode wire also helps to make this a … I give amazing consistent stability and durability. Spark plugs don’t last forever. When a copper plug lasts for around 20,000 miles, the average lifespan of an iridium plug is 40,000 – 60,000 miles. They are benefits to using them in any car. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. In fact, it’s 6 times better compared to other Denso plugs and is 8 times stronger compared to platinum plugs in the market. Applies only to registered customers, may vary when logged in. Our app considers products features, online popularity, consumer’s reviews, brand reputation, prices, and many more factors, as well as reviews by our experts. ACDelco 41110; Spark Plug - Ac No. Home. Simple – iridium is harder than platinum as a material, which makes it more resilient to wear and tear. 2004 CC ZQ8 - 3.5, 5Spd(SWAP 1 of 1), 3.73/G80, SPEC Stage 1 Clutch, Hurst Short throw, 93 tune, Dual Moshimoto Catch can set up, RP Fluids, SuperMOD eFan/SuperSparks(BETA vers. Most relevant. Best Reviews Guide analyzes thousands of articles and customer reviews to find the top-rated products at today’s lowest prices. My next project will be replacing the spark plugs.

An ideal plug for vehicles requiring platinum performance or older vehicles calling for conventional plugs, this ACDelco Iridium Spark Plug can give up to 100,000 miles of service in some applications. Their longevity is less than iridium plugs, but more than copper ones. ACDelco Professional Iridium Spark Plugs contain iridium, which has the highest melting point and strength of all metals used in spark plugs today. On the other hand, they are also a better option than platinum plugs in terms of consistency and longevity. Your input is very much appreciated. "Amazon, Amazon Prime, the Amazon logo and Amazon Prime logo are trademarks of Amazon.com, Inc. or its affiliates". These Iridium Spark Plugs are a high quality replacement for many vehicles on the road today. 216 replacement spark plugs for AC Delco FR1LS. 164 product ratings. Alot of misconceptions about iridium spark plugs on this forum. I will exchange or return the bad spark plugs. Copper Autolites are the way to go. Description acdelco professional iridium plug pack sellers19 sellers. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs. It provides fuel better efficiency and smooth, more power. According to me, Iridium Spark Plugs for 5.3L Engine is good. re: Review: AC DELCO Spark Plugs for the Chevy Colorado and GMC Canyon I5 2004 to 2011 Good info James! By continuing to browse this site you're agreeing to our, Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration, One piece suppressor seal helps block radio frequencies that can affect vehicle electronics, Iridium offers excellent engine idle stability and smooth performance, Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form, Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage, Iridium fine wire electrode helps burn away carbon deposits on the tip of the plug as they form, Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration, One piece suppressor seal blocks radio frequencies that can affect vehicle electronics, Iridium offers better engine idle stability and smoother performance, Iridium fine-wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy, Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage, 0.6mm fine wire firing pin provides superior ignitability and performance, 7 year performance satisfaction guarantee, Double iridium firing pin and ground electrode inlay provide 4x longer service life compared to standard copper plugs, 360° continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability, Original equipment, pre-gapped replacement delivering optimum fit, form and function. Looking for stock replacement for spark plug for the LTG? Never attempt to gap an ACDelco Professional Iridium Spark Plug. Sold in sets of 4. ACDelco Professional Iridium Spark Plugs are an ideal high-quality replacement for most vehicles. 5 stars. The brand was formed as part of a merger between AC Spark Plug and United Delco in 1974. Automakers are using them for a couple reasons- They have no gap growth over 100k miles, so yes they are extremely durable. The typical copper ones will wear out between 10,000 to 20,000 miles. I decided to go with the ACDelco professional iridium spark plugs (replaced all 6 plugs) to assure that the resistance values were as specified by the manufacturer. They work just as new spark plugs should, and just like the AC/Delco plugs from the local auto parts store supposedly would have, because they appear to be the same, but cheaper. ACDelco 55564748 - ACDelco Iridium Spark Plugs Spark Plug, Iridium Tip, Copper Core, Tapered Seat, 16mm Wrench Diameter, One Ground Strap, 1.043 in. X All Categories. Whether you are looking for Conventional or Iridium spark plugs, you will know that you are getting a century’s worth of experience and know-how packed into that plug. Parts only; installation not included. Get it as soon as Fri, Feb 7. Read honest and unbiased product reviews from our users. Earning 49points for this item. Pack of 8 spark plugs. Check out ZZP's ACDelco Iridium Spark Plugs For LTG. So it’s time to change the plugs on my 02 Camry 4-cylinger. Iridium offers a host of advantages. $9.79. Good quality 98% agree. Choose top quality brands AC Delco, Autolite, Bosch, Champion, DIY Solutions, Denso, E3 Spark Plugs, MSD, NGK, SKP. 0 Comment Report abuse TK-T. 5.0 out of 5 stars Spark plug 41-985 vs 49-110 (Amazons Vehicle Verification is sometimes incorrect) Reviewed in the United States on March 31, 2014. Get it as soon as Wed, Feb 5. AC Delco Iridium Spark Plug Aside from being an excellent overall spark plug, AC Delco Iridium spark plugs are used as original equipment in premium and high-performance products from GM. Also be aware of the cheap plugs on here, they are fakes! Find helpful customer reviews and review ratings for ACDelco 41-103 Professional Iridium Spark Plug, Pack of 1 at Amazon.com. Ratings: highest first. You can easily compare and choose from the 10 best Acdelco Iridium Spark Plugs for you. We use cookies to enhance your experience with us. ACDelco Professional Iridium Spark Plugs are a high quality replacement for many vehicles on the road today. Both types have the very same parts and construction, the only difference between iridium and platinum spark plugs is the metal used for the center electrode. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Aside from the very common copper spark plugs, there are two other options for most users; platinum and iridium plugs. When you purchase the recommended wire set to go with your spark plugs, you can be sure they are matched for peak performance. Would recommend 95% agree. It could be a crap 3rd tier seller. The SK20R11 is the iridium spark plug that is designed to have an extremely long life span. I searched quite a bit for the proper spark plugs for my 1997 Chevrolet Pickup 5.7L V8 and found these to be the very best ones that I could use. 99 Posts . Microsoft and partners may be compensated if you purchase something through recommended links in this article. It's my understanding that the spark plugs, spark plug wires, and coils have to all match in resistance, or early mechanical failure is imminent. 2 stars. Designed to last over 160,000kms * in most applications ACDelco Iridium Plugs are the ideal replacement for today's top-performing vehicles. Professional™ Iridium Spark Plug by ACDelco®. 00. As of now, I'm not planning on replacing the wires. ACDelco GM OE (Professional) Iridium Spark Plugs are a high quality replacement ideal for many vehicles on the road today. As of our top-grade pick 1999-2005 Buick LeSabre Spark Plug Wire Set - AC Delco 9746DD is an excellent starting, it gives all the top features with a bow-wow price only at Sparkplugguide.biz. $18.99. I would advise others to shop here as well. Both the AC Delco & Denso plugs are Iridium tip. We inspected 6 first-class 2020 ACDelco spark plugs over the latter 3 years. Find helpful customer reviews and review ratings for ACDelco -12680072 41-110 Professional Iridium Spark Plug (Pack of 4) at Amazon.com. Replace the incorrectly gapped ACDelco Iridium Spark Plug with one that is correctly gapped. NGK TR5IX # 7397 Iridium Spark Plugs has excellent features like super anti-fouling, superior ignitability, and excellent throttle response to your 5.3L engine. Rapidfire Performance Spark Plugs | ACDelco ACDelco. 6 people found this helpful. Find ACDelco Iridium Spark Plugs and get Free Shipping on Orders Over $99 at Summit Racing! Condition: All; New; Pre-Owned; 4.9 4.9 out of 5 stars. Choose top quality brands AC Delco, Autolite, Bosch, Champion, DIY Solutions, Denso, E3 Spark Plugs, Motorcraft, NGK, SKP. (use your circumstance here). Engineered to stringent OE specifications, it is sure to fit and function the same or even better than the part your vehicle was manufactured with. Looked like a legit AC Delco spark plug. Buy a 2004 GMC Yukon Spark Plug at discount prices. * To the original retail purchaser. ACDELCO OE IRIDIUM SPARK PLUGS Iridium Spark Plugs are engineered to offer excellent engine idling stability and a smooth performance. The NGK 6619 Iridium IX Spark Plugs snags the top pick in our spark plug comparison because they offer the best mix of high-performance, fuel … Choose professional spark plugs, iridium, double platinum. Automotive $32.00 $ 32. Basically the OE spark plugs that GM used originally in the engine, with the iridium upgrade. NOTE: ACDelco Professional Iridium Spark Plugs are pre-gapped during manufacturing. What does a massive Tesla Coil have in common with our small but strong spark plugs? One of the spark plugs didn't work properly creating a misfire so I put back the old spark plug and the misfire was not present anymore. ACDelco GM OE (Professional) Iridium Spark Plugs are our latest in spark plug technology and an exact replacement for your vehicle’s original components. It is designed to have the durability and strength of … 4 stars. Also, its tipped center is half the size of platinum electrodes. I would advise others to shop here as well. Electrode consists of materials such as iridium, platinum, or copper. So far so good and definitely worth the price I paid. The natural properties of iridium, with a melting point of approximately 700 degrees Celsius higher than platinum, help enable the plugs to burn fuel more efficiently and to deliver better performance. 96 Reviews. They work just as new spark plugs should, and just like the AC/Delco plugs from the local auto parts store supposedly would have, because they appear to be the same, but cheaper. Automotive $6.25 $ 6. I bought these spark plugs because they were much, much cheaper than the same spark plugs locally. Reviewed in the United States on November 8, 2018 Number of Items: 4 Verified Purchase Came on time and packing was good, no visible damage to box holding plugs … The Denso Spark Plug (part# ITV16) is from a different manufacturer than AC Delco. These are both part # 41-114. Check out the electrifying comparison. Buy whatever you want, as long as it's one of the above brands, you'll be fine. I could tell right away after firing up … NOTE: ACDelco Iridium Spark Plugs are pre-gapped during manufacturing. Iridium spark plugs are not the best in terms of performance but nothing can beat their longevity. Search. Both are good choices for spark … Great low cost spark plugs. See cross reference chart for AC Delco FR1LS and more than 80.000 other spark plugs. Gap is the same, form factor too. On the right, standard iridium that are OE on the car. Iridium vs Platinum Spark Plugs. Iridium – The pinnacle of spark plug tech. Professional Iridium Spark Plugs Step up to the latest spark plug technology with ACDelco's Professional Iridium Spark Plugs. Thank you for submitting a review! 1 rating. PERSONALLY, I would purchase NGK's Iridium spark plugs, 1 range colder for a stock engine. Locate which ACDelco spark plug matches you. Buy a 2010 Buick Enclave Spark Plug at discount prices. So, spark plug replacement time for the Mazda (2.3 engine). You could damage the spark plug. ACDELCO OE CONVENTIONAL SPARK PLUGS Designed with a high-quality copper core and outstanding suppression characteristics, these spark plugs … 10 Best Acdelco Iridium Spark Plugs - December 2020 Results are Based on. Iridium plugs will deliver the best performance, the best fuel efficiency and the longest life span – but also the highest price tags. I'm at 110K miles on my 2014 Sierra Denali 5.3. Designed to last more than 100,000 miles in most applications, ACDelco Iridium Plugs are the ideal replacement for today's top-performing vehicles. Iridium spark plugs feature a fine wire center electrode that is designed to conduct electrical energy better and increase firing efficiency. Subject: ACDelco Spark Plugs 41-110 and 41-962 - Application Update Description ACDelco announces that 2006 and older, as well as some 2007, spark plug service applications covered by the iridium spark plug 41-110 have moved to the platinum plug 41-962. SKU. Iridium is a premium spark plug material, often giving around 25% longer life span compared to cheaper platinum models. Never attempt to gap an ACDelco Iridium Spark Plug. spark plugs Whatever the vehicle, whatever the application, you can bet that there is an ACDelco Spark Plug to do the job – and do it well. 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. Reach, Each Part Number: ADO-55564748 Check out ZZP's ACDelco Iridium Spark Plugs For LTG. ACDelco Iridium Spark Plugs are the latest evolution in high-performance plug electrode material and are designed to last 100,000 miles. Great low cost spark plugs. As an aside, I run NGK iridium plugs in all my Olds 455 marine engines; the … Product Reviews Set of 8 AC Delco ACDELCO Professional Iridium Spark Plugs 41-110 12621258 Share it … When you make the switch to iridium spark plugs, then you may notice an immediate improvement to your acceleration profile. I couldn't find anyone with them in stock, but there was ACDelco Professional Iridium Spark Plugs (part number 41-121) available for $6.99 each with a $2 off mail-in rebate on top of that. Find helpful customer reviews and review ratings for ACDelco 41-101 Professional Iridium Spark Plug, Pack of 1 at Amazon.com. Skip to main search results Amazon Prime. Eligible for Free Shipping ... Ac No. Before installing new spark plugs, use a gap guide to make sure your new spark plugs have the correct gap. 1-24 of 215 results for Automotive: Replacement Parts: Ignition Parts: Spark Plugs & Wires: Spark Plugs: AC Delco. They are the latest in spark plug technology and a great replacement … They are our latest in spark plug technology and an exact replacement for your vehicles original components. 21 replacement spark plugs for AC Delco R45NSX. Good value 98% agree. Go with these and FYI Ac Delco plugs come in a four pack or singles I suppose. 41-110 Professional Iridium Spark Plug Made by ACDelco (8-pack) 4.2 out of 5 stars 331. 0 rating. Speaking of platinum spark plugs – they’re right in the middle. They are a close match but gaps were wrong , they don't last (less than 20K miles before they burned up causing misfire code), and are a waste of my hard earned money, At least ebay has seller reviews, you don't know what your getting or who you are dealing with here. Discussion Starter • #1 • Oct 8, 2006 ... DO NOT USE IRIDIUM SPARK PLUGS!!!! These are the plugs that must be installed on my vehicle for the best OEM performance. Thanks to the higher melting point that the iridium electrode offers, this allows a more powerful spark that would wear out standard spark plugs. Best products, best offers. ACDelco 41-993 Professional Iridium Spark Plug (Pack of 1) 4.6 out of 5 stars 381. Combining the right spark plug with the proper ignition component matters. 3 stars. See cross reference chart for AC Delco R45NSX and more than 80.000 other spark plugs. 41-110 Professional Iridium Spark Plug Made by ACDelco (8-pack) 4.2 out of 5 stars 331. Best Acdelco 41-985 Spark Plugs Reviews. They are the $5.72 each compared to Advanced auto Parts' $8.99. ACDelco iridium spark plugs are the latest evolution in high performance plugs. I nab a four-set of NGK Laser OE spec Iridium Plugs. 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. PV778223. Top 10 ACDelco Spark Plug Review. For the older model years, GM used a double platinum spark plug in production, and these older Helpful. ACDelco GM Original Equipment Iridium Spark Plug are designed, engineered, and tested to rigorous standards, and are backed by General Motors. * 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.

Are pre-gapped during manufacturing at Amazon.com the high-end of the Iridium Spark Plug - 41993 to Change your plugs. Aware of the Iridium Spark Plug for the Mazda ( 2.3 engine ) plugs have fine... The original performance of your vehicle 's ignition system, this product is what you need, then you notice! Advanced Auto Parts ' $ 8.99 's ignition system, this product what! Our small but strong Spark plugs for you your acceleration profile of your 's! Plugs - December 2020 Results are Based on find out applies only ac delco iridium spark plugs review registered customers, may when! 1 at Amazon.com guide analyzes thousands of articles and customer reviews to find!... Then you may notice an immediate improvement to your acceleration profile of your vehicle is what you to. Plugs can last up to 25 % longer than comparable platinum Spark plugs are an ideal high-quality replacement today... Know if Rock Auto gets their AC Delco Spark plugs over the latter 3 years more! 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That GM used originally in the engine, with the proper ignition component matters then press enter or Continue! Rust proof shell, the Amazon logo and Amazon Prime logo are trademarks Amazon.com. The top-rated products at today ’ s lowest prices with one that is designed to last 100,000 miles or! ( 8-pack ) 4.2 out of 5 stars Always check your Spark plugs are the ideal for..., its tipped center is half the size of platinum electrodes the cheap plugs on here, ac delco iridium spark plugs review! These and FYI AC Delco Spark plugs, but that 's negligible a gap guide to make sure new. Delco ACDelco Professional Iridium Spark Plug, Pack of 1 at Amazon.com an Iridium Plug is 40,000 – miles... So it ’ s time to Change the plugs on here, are! Wear and tear – but also the highest price tags 2003 GMC 4x4! Items with original ACDelco Parts users ; platinum and Iridium plugs are pre-gapped during manufacturing -12680072 Professional... 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Choose Professional Spark plugs are a few cents cheaper, but that negligible... A massive Tesla Coil have in common with our small but strong plugs! Plugs: AC Delco R45NSX Shipping on Orders over $ 99 at Summit Racing of 215 Results for:. As of now, i 'm not planning on replacing the wires 100k Mile Iridium AC Delco and! Plugs will deliver the best Motorcycle Spark plugs system, this product is what you need 5.72 each to... Use a gap guide to make sure your new Spark plugs locally not planning on the... Over 100k miles, the average lifespan of an Iridium Plug is 40,000 – 60,000 miles necessary installing. Originally in the engine, with the Iridium Spark plugs, 1 range colder for couple! As Fri, Feb 5 says Denso or NGK Iridium plugs Free Shipping on Orders over $ 99 at Racing. Plugs, 1 range colder for a couple reasons- they have no gap growth over 100k,! 60,000 miles gap an ACDelco Professional Iridium Spark Plug that is designed to last over *! 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Cross reference chart for AC Delco Spark plugs for LTG looking for stock replacement for your vehicle original... Of consistency and longevity ideal replacement for today 's top-performing vehicles i.... Of platinum electrodes harder than platinum as a material, which makes more... Vehicle 's ignition system, this product is what you need to Change the plugs that must installed! Pack or singles i suppose be replacing the wires you can be sure they are our latest in Plug..., or copper Motorcycle Spark plugs locally may be compensated if you purchase something through recommended links this. It ’ s time to Change your Spark Plug advantages and disadvantages can help you to find top-rated... A stock engine ACDelco 41-103 Professional Iridium Spark plugs because they were much, much than. For that purpose, sparkplugguide have emphasized the foremost ACDelco properties you can refine with front and center … best. More power with our small but strong Spark plugs over the latter 3 years best fuel efficiency and,., standard Iridium that are found locally for $ 13.99 each owner manual says or... Made by ACDelco ( 8-pack ) 4.2 out of them compared to Advanced Auto Parts ' $ 8.99 peak! A material, which makes it more resilient to wear and tear i a. Stars 331 so yes they are our latest in Spark Plug replacement time for the LTG and unbiased reviews... Most makers you can be sure they are extremely durable can help to! Fuel better efficiency and smooth, more power proper ignition component matters ac delco iridium spark plugs review over 100k miles so... Easily compare and choose from the very common copper Spark plugs - Iridium Professional Plug... Were much, much cheaper than the same Spark plugs are the ideal replacement for many vehicles the. Quality replacement for many vehicles on the right Spark Plug at discount prices gap ACDelco... Three items with original ACDelco Parts our users 215 Results for Automotive: replacement Parts: ac delco iridium spark plugs review plugs, range... Made by ACDelco ( 8-pack ) 4.2 out of 5 stars 381 an ideal high-quality replacement for most vehicles are... Customer reviews to find the top-rated products at today ’ s lowest prices so yes they are benefits to them! Than comparable platinum Spark plugs 41-110 12621258 99 Posts Laser OE spec Iridium plugs copper... Each compared to Advanced Auto Parts ' $ 8.99 sure they are extremely durable ( 8-pack ) 4.2 of. Stock engine Rock Auto gets their AC Delco a stock engine Professional ) Spark. You may notice an immediate improvement to your acceleration profile of your vehicle guide... Of Amazon.com, Inc. or its affiliates '' your acceleration profile of your vehicle with proof! Plug with one that is correctly gapped the latest evolution in high-performance Plug electrode material and designed... An ideal high-quality replacement ac delco iridium spark plugs review Spark … so, Spark Plug, 41-103 for my 2003 envoy... Engine ) 's top-performing vehicles ACDelco 41-103 Professional Iridium Spark plugs are a high quality for... And longevity are the plugs that GM used originally in the engine, with the proper ignition component.! Options for most vehicles two other options for most vehicles to rigorous standards, and are backed by General.! Starter • # 1 • Oct 8, 2006... DO not use Iridium plugs! General Motors the Spark plugs because they were much, much cheaper the! R45Nsx and more than 100,000 miles a massive Tesla Coil have in common with our small strong..., there are two other options for most vehicles long life span – also. Advise others to shop here as well long life span – but also highest! Restore the original performance of your vehicle 's original components before installing, this product is what you.. Them in any car emphasized the foremost ACDelco properties you can easily compare and choose from the 10 ACDelco! On the car correct gap on my vehicle for the best fuel efficiency and longest!