Are you trying to find automotive replacement spark plugs among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling automotive replacement spark plugs on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 21 hours of research and did 21 automotive replacement spark plugs tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best automotive replacement spark plugs you can buy today
- Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
- The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
- Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
- Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
- Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties
- Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response
- The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
- Longer insulator , the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
- Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
- Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties. Resistor Value-5K Ohm. Hex Size-5/8 inch
- MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions
- IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer
- CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life
- high nickel alloy side electrode maintains precise gap
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs
- G-Power Platinum
- Designed to operate over a much wider heat range than ordinary plugs
- Resists carbon buildup and pre-ignition
- Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
- EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
- FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
- OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
- CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability
- EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
- FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
- OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
- CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability
- Machine rolled threads prevent seizing or cross threading during installation and removal
- 100% pre-fired to assure the highest quality possible
- Purified alumina powder insulator provides exceptional strength and thermal conductivity
- Five rib insulator prevents flashover
- Copper-glass seal bonds center electrode and insulator for a gas-tight seal
- Iridium offers excellent engine idle stability and smooth performance
- Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
- Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
- One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
- Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- MAXIMUM PERFORMANCE: Every Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration.
- IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer
- CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life
- FUEL EFFICIENCY: The Autolite Platinum automotive replacement spark plug works to optimize engine performance for a longer life and improved fuel economy.
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs
- [Vehicle Fitment]: Compatible with Acura CL 2001-2003 V6 3.2L(TypeS, Engine Code: J32A2; Gap 0.044 inch), TL 2002-2003 V6 3.2L(TypeS; Gap 0.044 inch); Compatible with Dodge B1500 1997-1998 V6 3.9L(Gap 0.040 inch), B2500 1997 V6 3.9L(Gap 0.040 inch), Dakota 1997-2003 V6 3.9L(Gap 0.040 inch), Durango 1998-1999 V6 3.9L(Gap 0.040 inch), Ram 1500 1997-2001 V6 3.9L(Gap 0.040 inch), Ram 1500 Van 1999-2003 V6 3.9L(Gap 0.040 inch), Ram 2500 Van 2001 V6 3.9L(Gap 0.040 inch)
- [Vehicle Fitment-2]: Compatible with Dodge Nitro 2007-2011 V6 3.7L, Ram 1500 2002-2010 V6 3.7L, Dakota 2004-2010 V6 3.7L, Durango 2004-2009 V6 3.7L;Compatible with Ford Probe 1993-1997 V6 2.5L; Compatible with Jeep Commander XK 2006-2010 V6 3.7L, Grand Cherokee WK 2005-2010 V6 3.7L, Liberty XJ 2002-2012 V6 3.7L; Compatible with Mitsubishi Raider 2006-2009 V6 3.7L; Compatible with Ram 1500 2011-2013 V6 3.7L, Dakota 2011 V6 3.7L---Gap 0.044 inch
- [Reference Number]: 6441, ZFR6FIX-11, ZFR6FIX11, 1UNH18110, 99906910X9020, BY481ZFR6F, MZ602069, XP5224
- [Specifications]: ①Center Electrode Tip Material: Iridium; ②Center Electrode Core Material: Platinum; ③Resistance (ohms): 5000; ④Gap Size (IN): 0.040/0.044; ⑤Hex Size (IN): 5/8; ⑥Insulator Height (mm): 50.50; ⑦Reach (mm): 19.05; ⑧Thread Diameter (MM): 14.00
- [Engineered for Longevity]: For optimal engine performance and longevity, it is recommended to replace platinum iridium spark plugs at mileage intervals of 80,000 to 100,000 miles
- EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
- FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
- OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
- CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability
- [Vehicle Fitment]: Compatible with Ford Escape 2017-2019 L4 1.5L, Fusion 2014-2020 L4 1.5L --- Gap 0.028"
- [Reference Number]: 91924, ILZNAR8A7G, DS7G12405BA, HYFS094YEC
- [Specifications]: ①Center Electrode Tip Material: Iridium; ②Center Electrode Core Material: Platinum; ③Resistance (ohms): 5000; ④Gap Size (IN): 0.028; ⑤Hex Size (IN): 5/9; ⑥Insulator Height (mm): 52.5; ⑦Reach (mm): 25; ⑧Thread Diameter (MM): 12
- [Exceptional Ignitability]: Designed alongside OEMs and engineered for maximum ignition performance
- [Engineered for Longevity]: For optimal engine performance and longevity, it is recommended to replace platinum iridium spark plugs at mileage intervals of 80,000 to 100,000 miles
- NGK 97968 ILZKBR7B8G Laser Iridium Spark Plug
- Pack of 4
- [Vehicle Fitment]: Compatible with Hyundai Accent 2012-2019 L4 1.6L, Compatible with Elantra 2011-2011 L4 1.8L, Compatible with Veloster 2012-2017 L4 1.6L (Naturally Aspirated); Compatible with Kia Rio 2012-2019 L4 1.6L (Naturally Aspirated), Soul 2012-2019 L4 1.6L (Naturally Aspirated) --- Gap: 0.040"
- [Reference Number]: 92873, LZKR6AIX
- [Specifications]: ①Center Electrode Tip Material: Iridium; ②Center Electrode Core Material: Platinum; ③Resistance (ohms): 5000; ④Gap Size (IN): 0.036; ⑤Hex Size (IN): 5/8; ⑥Insulator Height (mm): 50.20; ⑦Reach (mm): 26.5; ⑧Thread Diameter (MM): 12.00
- [Exceptional Ignitability]: Designed alongside OEMs and engineered for maximum ignition performance
- [Engineered for Longevity]: For optimal engine performance and longevity, it is recommended to replace platinum iridium spark plugs at mileage intervals of 80,000 to 100,000 miles
- MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions
- IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer
- CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life
- high nickel alloy side electrode maintains precise gap
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs
- MAXIMUM PERFORMANCE: Every Copper Spark Plug has a full copper core electrode which provides higher thermal conductivity for better performance in all conditions
- IMPROVED DURABILITY: All Autolite spark plugs are Leak proof and come with a heat fused internal seal for long lasting durability
- CONSTRUCTION: These replacement spark plugs have a copper-glass seal which bonds the insulator and the terminal post center electrode together
- FUEL EFFICIENCY: The Autolite copper automotive replacement spark plug are guaranteed to deliver quick starts, better fuel economy and smooth acceleration
- AUTOLITE ADVANTAGE: Since 1936, Autolite has been a trusted leader and innovator in spark plug technology. You can count on our copper plugs for performance and value, backed by decades of experience and passion
- Denso 4704
- 0.4mm Iridium Center Electrode
- 0.7mm Platinum Ground Electrode
- Larger spark translates to more power and superior fuel economy
- 0.4 mm iridium center electrode, world's smallest diameter that maximizes firing potential
- One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
- Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
- Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Motorcraft Spark Plug - SP509X
- Item Package Dimension: 3.7L x 0.9W x 0.86H inches
- Item Package Weight - 0.019 Pounds
- Item Package Quantity - 1
- Product Type - SPARK PLUG
- Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.
- Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer
- NGK is the world's largest supplier of OEM spark plugs
- Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Quantity Needed.
- This Listing is for 8 Spark Plugs
How to choose a good automotive replacement spark plugs
Does the idea of finding a fantastic automotive replacement spark plugs make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in automotive replacement spark plugs. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top automotive replacement spark plugs products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top automotive replacement spark plugs on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top automotive replacement spark plugs brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top automotive replacement spark plugs based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the automotive replacement spark plugs were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good automotive replacement spark plugs, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your automotive replacement spark plugs.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting automotive replacement spark plugs for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our automotive replacement spark plugs. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what automotive replacement spark plugs should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on automotive replacement spark plugs.
