2021 Honda Civic Ignition and Tune-Up Products

Name: Ignition Coil
Brand: Delphi
SKU: GN10284
Price: 82.99 USD

Below you will find various in-demand Honda Ignition and Tune-Up Products, components and accessories for your 2021 Civic. Advance Auto Parts has popular Civic parts like Spark Plugs, Ignition Coils and Boots, Ignition Kits and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other Civic model years including 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023 and more. Select a category of 2021 Honda Civic Ignition and Tune-Up Products below and start saving instantly.

Popular 2021 Honda Civic Ignition and Tune-Up Products Categories

Ignition Knock (Detonation) Sensor Kits

Spark Plugs

Ignition Coils

Essential Ignition and Tune-Up Products for 2021 Honda Civics

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$82.99

Every single Delphi ignition coil is designed and endurance tested using high quality materials. This ensures fast starts, consistent engine performance and optimized fuel efficiency. We makes more than 10 million ignition coils for North America each year, and each one is engineered to OE design specifications for vehicles from Ford, Toyota, Nissan, Lexus, GM, Mazda, Chrysler, Subaru, Acura and more.

Product Features:

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

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$46.99

Edelbrock Ignition Coil No. 22739 is a universal 12-volt cannister-style coil designed as a high-quality direct bolt-on replacement for OEM ignition coils. This advanced coil has a primary resistance of 1.4 ohms with an output of 42,000 volts. Internally, each Edelbrock Coil features heavy-duty primary and secondary windings for higher energy and greater spark that can help to provide quicker starts with improved idle quality. With a durable oil-filled housing, Edelbrock Coils are resistant to heat, shock and vibration with an effective operating range of 0 to 6,500 RPM.

Product Features:

output of 42000V

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$143.99

Hitachi’s Ignition Coils (IGCs) provide the needed energy for today’s high efficiency, high power vehicles. High quality materials ensure that even under the most extreme conditions, Hitachi’s IGCs will not deform or malfunction. Our ignition coils help to produce optimal engine efficiency resulting in reliable performance and gas mileage. Electronic connection points are welded to providing durability during heat cycles. Details such as materials, high turns ratios, and protected circuitry provide a durable and reliable product approved by OE manufacturers. Designed to meet the exact needs of each specific vehicle, Hitachi’s ignition coils are the premium choice.

Product Features:

Benefits of these quality Ignition Coils include efficient spark and reduced need for wires, long product life, and consistent voltage and amperage output.

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$87.99

NGK ignition coils are manufactured to meet or exceed OE standards for the highest durability and operational performance, so they can be installed with confidence. NGK and their family of automotive products have over 80 years’ experience and are driven by extreme dedication to innovation, performance and quality. With state-of-the-art manufacturing, inventory and distribution facilities in North America and globally, NGK is dedicated to providing customers with world-class products and services. Developed and rigorously tested in our ISO 17025 accredited test lab under the most extreme conditions, NGK’s coil designs will outperform all others – far beyond operational environments a vehicle would actually experience. NGK ignition coils have vast coverage including late-model domestic and import vehicles. NGK’s OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist.

Product Features:

OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
EASE OF INSTALLATION: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
THE NGK DIFFERENCE: Featuring superior materials and design enhancements
EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils

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$114.99

Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$71.99

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

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$125.99

Benefits of these quality Ignition Coils include efficient spark and reduced need for wires, long product life, and consistent voltage and amperage output.

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$78.99

Direct Ignition Coil

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$165.99

Carquest Premium ignition coil sets meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coil sets are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coil sets with an industry-leading warranty. Carquest Premium ignition coil sets are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
Extensive design validation testing to ensure long-lasting reliability
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$21.99

NGK Laser Platinum spark plugs provide high ignitability and longer service life compared to conventional nickel spark plugs. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applications. Laser platinum plugs provide stable idling, superior anti-fouling, improved fuel efficiency and lower emissions. High-grade pure alumina ceramic and 98% pure copper core prevents spark plug from overheating and provides reliable starts. Most Laser Platinum spark plugs feature a platinum pad on the ground electrode for even wear in distributor less ignition systems.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire platinum alloy center electrode provides consistent performance
PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire platinum alloy plugs

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$9.49

ACDelco Professional Double Platinum Spark Plugs are premium aftermarket plugs, and are a high quality replacement for many vehicles on the road today. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:

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
Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
Available for use in Marine applications
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

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$6.49

The U-Groove Spark Plug is engineered to deliver OE performance with exceptional durability, lasting twice as long as most conventional plugs. Featuring an OEM-specified special ground electrode configuration, it ensures optimal ignition and reliable operation. The nickel center electrode tip and precision machine-rolled threads minimize seizing and cross-threading, making it ideal for delicate aluminum heads. Designed with a flat seat type, this spark plug is compatible with a wide range of applications, including classic and collector cars. Each unit is 100 percent pre-fired to guarantee consistent performance, providing a dependable solution for vehicles requiring high-quality ignition components.

Product Features:

OEM specified special ground electrode configuration
Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
Wide range of part numbers for thousands of applications, including classic and collector cars
Lasts twice as long as most conventional plugs
100 percent pre-fired to assure reliable operation
U-Groove Conventional

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$11.49

The Iridium Power Spark Plug (IK16L) is engineered for maximum spark energy and efficiency, featuring the world’s smallest iridium center electrode at just 0.4mm. This innovative design enhances spark performance, ensuring optimal combustion for superior horsepower and fuel efficiency. Built with a patented 360-degree laser welding assembly process, it delivers unmatched durability, withstanding temperatures exceeding 4000 Deg F. The U-groove and taper-cut ground electrode maximize flame propagation, while the burnished nickel plating offers exceptional resistance to high temperatures and corrosion. Requiring 5,000 volts less to fire compared to conventional spark plugs, it guarantees reliable starts, fewer misfires under heavy loads, and consistent performance even in extreme conditions. Designed with a flat seat type and crafted from durable iridium material, this spark plug is built to last. With a wide range of part numbers, it is compatible with thousands of applications, including classic and collector cars, making it a versatile and high-performance choice for automotive enthusiasts.

Product Features:

World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
Patented 360-degree laser welding assembly process
U-groove and taper cut ground electrode to maximize flame propagation.
Withstands temperatures greater than 4000 degree Fahrenheit
Burnished nickel plating for high temperature endurance and superior corrosion resistance
Wide range of part numbers for thousands of applications, including classic and collector cars
Iridium Power
Superior Performance: This spark plug requires 5,000 volts less to fire compared to conventional spark plugs, providing maximum performance even under extreme conditions.
Enhanced Horsepower and Efficiency: Experience more horsepower, faster and easier starts, fewer misfires under heavy loads, and improved fuel efficiency with the DENSO Iridium Power spark plug.
Durable Iridium Material: Constructed with a durable iridium center electrode tip and a flat seat type, this spark plug ensures long-lasting performance and reliability.

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$6.99

Double Platinum Spark Plug: Enhanced Durability & Longer Service Life is engineered for peak performance and reliability. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring consistent ignition and extended service life. The yttrium-enhanced ground electrode offers superior heat transfer, making it highly durable under extreme temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for added safety. Designed with a mid-projection standard center electrode and flat seat type, this performance-grade spark plug is ideal for distributor-less ignition system (DIS) engines. Both the center and ground electrode tips are crafted from platinum, delivering unmatched durability and efficiency. With a built-in resistor, this spark plug ensures smooth operation and reliable performance, making it a valuable upgrade over copper and standard platinum plugs. Perfect for drivers seeking enhanced ignition reliability and longer-lasting durability.

Product Features:

Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
The multi-rib insulator prevents flash-over.
Designed with a built-in resistor to ensure smooth operation and reliable performance, enhancing ignition efficiency and reducing electromagnetic interference.

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$8.49

The Champion Iridium Spark Plug (RC10WYPB4) is engineered for drivers who demand peak performance and durability. Featuring a fine-wire iridium center electrode and an iridium-platinum ground electrode, this premium spark plug ensures maximum ignitability and a sharper spark focus for enhanced engine efficiency. The V-trimmed ground electrode design promotes precise spark delivery, while the Heat-Active alloy enables the electrodes to quickly reach and maintain optimal operating temperatures under all engine loads. Built with a flat seat type and resistor technology, it provides stable performance and reduces interference. Designed for longevity, the iridium center electrode offers exceptional wear resistance, making it ideal for high-performance applications. Whether you’re looking to boost your vehicle’s power or maintain consistent performance, this spark plug delivers unmatched reliability and value.

Product Features:

Champion Iridium – Maximum Performance. Premium Spark Plug
Iridium center electrode delivers maximum life
Fine-wire center electrode and V-trimmed for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Maintains stable operating temperature under all engine loads
Heat-Active alloy allows electrodes to reach optimal temperature quickly

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$6.99

Champion Double Platinum Power spark plugs are engineered to deliver exceptional performance and durability for your vehicle. Featuring a platinum fine-wire center electrode and a platinum pad ground electrode, these spark plugs ensure greater wear resistance and sharper spark focus for reliable ignition. The Heat-Active alloy optimizes electrode temperature under all engine loads, maintaining stable operation and enhancing overall efficiency. With a V-trimmed ground electrode design, these spark plugs promote precise spark delivery for improved ignitability. As an OE replacement, they are designed to seamlessly fit your vehicle, offering compatibility and dependable performance. Whether you’re seeking enhanced durability or more powerful ignition, these spark plugs are built to meet the demands of modern engines while providing long-lasting value.

Product Features:

Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Platinum center and ground electrode for greater wear resistance
Maintains stable operating temperature under all engine loads
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
OE Replacement: Designed as an OE replacement, ensuring compatibility and reliable performance for your vehicle.

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$8.49

The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger and faster flame kernel. This translates to improved power output by up to 6% on average and significant fuel savings, while also reducing engine carbon deposits for a cleaner burn. Constructed with durable nickel for both the center and ground electrode tips, this spark plug is built to last. Its gasket seat type ensures a secure fit, and the pre-gapped design eliminates the need for adjustments, making installation hassle-free. Upgrade to this advanced spark plug for enhanced engine performance, better fuel efficiency, and a cleaner, more reliable ride.

Product Features:

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.

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$9.99

Champion Double Platinum Power spark plugs are engineered to deliver exceptional performance and durability for your vehicle. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, these spark plugs ensure greater wear resistance and sharper spark focus for a more efficient ignition process. The innovative Heat-Active alloy allows the electrodes to maintain optimal operating temperatures under all engine loads, ensuring consistent performance and reliability. The V-trimmed ground electrode design further enhances ignitability, promoting a stable and powerful spark. Designed as a standard replacement, these spark plugs are equipped with a resistor and a flat seat type for seamless compatibility with a wide range of engines. Whether you’re looking for improved fuel efficiency or long-lasting performance, these spark plugs are built to meet your needs with precision and quality.

Product Features:

Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Platinum center and ground electrode for greater wear resistance
Maintains stable operating temperature under all engine loads
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature

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$70.99

Check engine light on and vehicle running rough? Could be a failed knock sensor. This ignition knock sensor kit combines both necessary sensors and the wiring harness that joins them for a complete repair in one package.

Product Features:

Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
Quality assured – benchmarked against original components for performance and quality
Excellent value – original equipment quality at significant cost savings

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$95.99

Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
Quality assured – benchmarked against original components for performance and quality
Excellent value – original equipment quality at significant cost savings

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$79.99

Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
Quality assured – benchmarked against original components for performance and quality
Excellent value – original equipment quality at significant cost savings

Upgrade your 2021 Honda Civic with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2021 Honda Civic, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Honda or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Civic functioning at its best. At Advance Auto Parts, we offer a wide selection of 18 Ignition and Tune-Up Products for the 2021 Honda Civic, designed to meet your needs without breaking the bank. From Spark Plug replacements to Ignition Coils and Boots upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Ignition and Tune-Up Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Ignition and Tune-Up Products for your 2021 Honda Civic at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $6.99 to $76.99, with an average price of $31.55. Our 18 Ignition and Tune-Up Products in stock come from 8 trusted brands, so you’re sure to find the right part for your 2021 Honda Civic without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2021 Honda Civic, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like DENSO Autolite, and more. DENSO Ignition and Tune-Up Products start at just $11.99 and boast an impressive 4.6 stars average rating from customers. With 129 customer reviews and counting, our 2021 Honda Civic Ignition and Tune-Up Products have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Ignition and Tune-Up Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2021 Honda Civic is always ready to roll. We’re committed to providing you with everything you need to keep your Civic in top shape, all in one place. Start shopping confidently below for your 2021 Honda Civic!

Best-Selling Spark Plugs for 2021 Honda Civics

Enhance the driving experience in your Honda with 12 quality Spark Plug components, starting at $6.99.

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$11.99

The Iridium TT Spark Plug combines the durability of an OE-style plug with the unmatched power and torque of high-performance engineering. Featuring a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm Needle Tip Ground Electrode promotes higher spark energy and reduces heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of Iridium for superior durability, complemented by a 360-degree laser welding process for exceptional structural strength. With the ability to withstand temperatures exceeding 4000 degrees Fahrenheit, it delivers reliable performance under extreme conditions. Its advanced Twin-Tip Technology enhances fuel economy, allowing you to drive around the Earth over four times with lower emissions. Constructed with durable materials, including an Iridium Center Electrode Tip and a Flat Seat Type, this spark plug ensures robust and efficient operation, making it a smart choice for drivers seeking endurance and peak performance.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power and Torque of high performance.
Withstands temperatures greater than 4000 degree Fahrenheit
Iridium TT
Enhanced Fuel Economy: Drive around the Earth over 4 times with lower emissions and better fuel economy, thanks to the advanced Twin-Tip Technology.
Durable Materials: Constructed with an Iridium Center Electrode Tip and a Flat Seat Type, ensuring robust and reliable performance.

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$26.99

Engineered for unmatched performance and longevity, this Iridium Long-Life Spark Plug is crafted with DENSO’s patented Iridium Alloy, featuring a fine wire center electrode for optimal ignition efficiency. Its Platinum Needle Tip Ground Electrode enhances spark energy while minimizing heat quenching, ensuring reliable performance even under extreme conditions. Built to endure temperatures exceeding 4,000 Deg F, this spark plug is designed for high-performance ignition systems and special fuel setups. The 360-degree laser welding process guarantees a robust bond and structural integrity, delivering sustained spark performance for over 100,000 miles. With a lifespan up to three times longer than conventional plugs, this flat-seat spark plug offers exceptional durability and value, meeting the strictest OE standards for emissions, performance, and reliability.

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
Platinum Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Sustained spark performance over 100,000 miles
Lasts up to three times as long as conventional plugs
Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
Iridium Long Life (SIP)

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$10.99

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:

0.6 mm finewire design improves ignitability
Patented V-trimmed platinum sidewire technology resists wear
OE equivalent design is engineered for every engine
Designed for better overall durability with virtually no gap erosion
Double Iridium-Enhanced Alloy Technology Center Electrode: Improves durability and wear resistance for a longer-lasting spark plug.
Engineered in the USA: Designed with over 100 years of Autolite engineering experience for superior quality and performance.
Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.

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$10.99

Double Platinum Spark Plug: Enhanced Durability & Performance is engineered for exceptional reliability and efficiency, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. The yttrium-enhanced ground electrode delivers superior heat transfer, providing unmatched durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for consistent performance. With a mid-projection center electrode and flat seat type, this performance-grade spark plug is designed to meet demanding engine requirements. Both the center and ground electrode tips are crafted from platinum, ensuring reliable ignition and enhanced durability. Whether you’re seeking improved engine efficiency or reduced maintenance, this spark plug delivers superior value and performance.

Product Features:

Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
The multi-rib insulator prevents flash-over.
Designed with a mid-projection center electrode and flat seat type to meet the demanding requirements of modern engines, ensuring consistent and reliable performance.

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$15.99

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered c

Product Features:

SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs

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$15.99

NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug, Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.

Product Features:

HIGH IGNITABILITY DOUBLE FINE ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with opposed fine wire platinum ground electrode
RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
PLATINUM PIN TYPE GROUND ELECTRODE: Provides more complete fuel burn, quicker throttle response, smoother idle and better cold starts
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modern vehicles using OE DFE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
Specialized OEM Tip Designs: Features DFE and PSPE tip designs for superior ignitability.
Industry-Leading Durability: Ruthenium center electrode ensures exceptional durability.

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$10.99

Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.

Product Features:

Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
Nickel-plated shell to resist corrosion.
High-alumina ceramic insulator for increased strength.
Laser welded 0.5mm Iridium finewire center electrode.
Proprietary platinum sidewire technology.

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$34.99

NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium High Ignitability spark plugs are tested to the highest standards to ensure quality and dur

Product Features:

ACTUAL OE or EQUIVALENT HIGH IGNITABILITY DESIGN: DFE tip and iridium alloy center electrode produce the most advanced OE spark plug technology
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
DFE DESIGN: Double fine electrode (platinum pin) provides more complete fuel burn, quicker throttle response, smoother idle and better cold starts
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE DFE iridium alloy plugs

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$24.99

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center elect

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs

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$6.99

NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

Product Features:

SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs

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$21.49

Engineered for unmatched performance and longevity, this Iridium Long-Life Spark Plug is crafted to meet the strictest OE standards for durability and emissions. Featuring DENSO’s patented Iridium Alloy with a 90% Iridium fine wire center electrode, it delivers sustained spark performance for over 100,000 miles, lasting up to three times longer than conventional plugs. The platinum ground electrode ensures extended life, while the 360-degree laser welding process guarantees a superior bond and structural integrity. Designed to endure extreme temperatures exceeding 4,000 Deg F, this spark plug is ideal for high-performance ignition systems and special fuel setups. With a flat seat type and cutting-edge technology, it offers exceptional reliability and value for drivers seeking long-lasting, high-quality ignition components.

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
Platinum ground electrode for extended life
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Sustained spark performance over 100,000 miles
Lasts up to three times as long as conventional plugs
Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
Iridium Long Life

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$8.49

The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by projecting the spark to ignite the air/fuel mixture more quickly, resulting in a larger and faster flame kernel. This advanced design improves power output by up to 6% on average within typical operating ranges, while also promoting fuel savings and reducing engine carbon deposits. Crafted with durable nickel for both the center and ground electrode tips, this spark plug is built to last. Pre-gapped at the factory for optimal performance, it eliminates the need for adjustments, making installation hassle-free. With its cleaner-burning combustion and enhanced energy efficiency, this spark plug is a smart upgrade for drivers seeking improved engine performance and long-term value.

Product Features:

E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
The Spark Plugs are pre-gapped at the factory and cannot be adjusted.

Top Picks for 2021 Honda Civic Ignition Kits

Upgrade Honda Civics with top-quality Ignition Kits parts, including 1 OEM and aftermarket selections for your 2021 model.

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from

$70.99

Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
Quality assured – benchmarked against original components for performance and quality
Excellent value – original equipment quality at significant cost savings

Top-Rated Ignition and Tune-Up Products Brands For Your 2021 Honda Civic

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2021 Honda Civics. Below you’ll find some of our best rated Ignition and Tune-Up Products from DENSO and Autolite, and more. Ignition and Tune-Up Products from these brands that fit a 2021 Civic start at just $10.99 and are rated as high as 4.6 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular DENSO 2021 Honda Civic Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2021 Honda Civic, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. DENSO ticks all of those boxes. We offer a wide selection of DENSO Ignition and Tune-Up Products, specifically designed for the 2021 Honda Civic. With over 2 DENSO brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $11.99, with an average price of just $19.49. Plus, with over 19 customer reviews and an average rating of 4.6 stars, you can trust that our DENSO Ignition and Tune-Up Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $26.99

(2)

Iridium Long-Life Spark Plug: Super Ignition, OE Performance, DXE22HQR-D11S

“Great product”

from $11.99

(17)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT

“None”

Popular Autolite 2021 Honda Civic Ignition and Tune-Up Products

Autolite auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 2021 Honda Civic owner should feel confident when installing genuine Autolite parts in their vehicle. To ensure the best fit and performance for your 2021 Civic, Advance Auto Parts carries a full inventory of 2 Autolite Ignition and Tune-Up Products. Plus you will be keeping your Honda in peak condition while saving money because prices on these Autolite Ignition and Tune-Up Products range up to $10.99, plus, with more than 22 customer reviews and an impressive 4.6 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

from $10.99

(21)

Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition

“Autolite Plugs have always done great .”

from $10.99

(1)

Double Platinum Spark Plug: Enhanced Durability & Performance

“My car runs smutty”

FAQs for 2021 Honda Civic Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2021 Honda Civics?

Out of 18 Ignition and Tune-Up Products that fit 2021 Honda Civics, the following parts are the top sellers:

Iridium IX Spark Plug (LKAR7BIX-11S): Extreme Ignitability & Durability (12102020) – $15.99
Ruthenium HX Spark Plug (LKAR7AHX-S): High Ignitability & Durability (12069664) – $15.99
Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision Ignition (12008178) – $10.99

What’s the price range for 2021 Honda Civic Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2021 Honda Civic start at $6.99 and go up to $76.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 2021 Honda Civic?

The average price for Ignition and Tune-Up Products for the 2021 Honda Civic is $31.55. Keep in mind the variety of part types within our Ignition and Tune-Up Product category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Ignition and Tune-Up Products for other Honda Civic model years?

Yes, we currently carry Ignition and Tune-Up Products for 51 model years of Honda Civics between 1973 and 2025. Ignition and Tune-Up Products are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Ignition and Tune-Up Products for my 2021 Honda Civic?

The cheapest 2021 Honda Civic Ignition and Tune-Up Products we carry in stock are:

G-Power Spark Plug (LKAR7BGP-S): Enhanced Durability & Efficiency (12102037) – $6.99
DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (11908608) – $8.49
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (10501022) – $10.99
Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision Ignition (12008178) – $10.99
Double Platinum Spark Plug: Enhanced Durability & Performance (11668328) – $10.99

What are the top-rated Ignition and Tune-Up Products that fit the 2021 Honda Civic?

Out of 129 reviews by customers, our 2021 Honda Civic Ignition and Tune-Up Products have an average customer rating of . These are some of the highest-rated Ignition and Tune-Up Product types for the 2021 Honda Civic and their top-rated products:

Spark Plugs
- Iridium Long-Life Spark Plug: Super Ignition, OE Performance, DXE22HQR-D11S (10887927) – $26.99
- Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (10713051) – $11.99
- Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (10501022) – $10.99

What types of Ignition and Tune-Up Products do you sell for my 2021 Honda Civic?

As of 11/2/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2021 Honda Civic:

Can I get help with 2021 Honda Civic Ignition and Tune-Up Product orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Honda Ignition and Tune-Up Products and more.

What is your return policy for Honda Civic Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Honda Civic Ignition and Tune-Up Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2021 Honda Civic Ignition and Tune-Up Products

Delphi – Ignition Coil (Part No.GN10284)

Edelbrock – Ignition Coil No. 22739 12V Cannister Style, 1.4 Ohm Primary Resistance (Part No.22739)

Hitachi – Ignition Coil Actual OE Part – New (Part No.IGC0081)

NGK – Premium COP Type Ignition Coil: Meets or Exceeds OE Specifications (Part No.48885)

Carquest Premium – Ignition Coil (Part No.EBC1235)

Delphi – Ignition Coil (Part No.GN10168)

Hitachi – Ignition Coil Actual OE Part – New (Part No.IGC0065)

MSD Ignition – Direct Ignition Coil (Part No.8219)

Carquest Premium – Ignition Coil Set: Meets or Exceeds OE Specifications, 4 Count (Part No.EBC1018-4)

NGK – OE Series Laser Platinum Spark Plug: Fine Wire Tip, PZFR6F-11 (Part No.3271)

ACDelco – Double Platinum Spark Plug: Long-Lasting Performance & Durability (Part No.41-829)

DENSO – U-Groove Spark Plug: OE Performance, KJ16CR-L11 (Part No.3132)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK16L (Part No.5357)

Autolite – Double Platinum Spark Plug: Enhanced Durability & Longer Service Life (Part No.APP5702)

Champion – Iridium Spark Plug (RC10WYPB4): Maximum Performance & Longevity (Part No.9001)

Champion – Double Platinum Power Spark Plug (RC12PYP): Enhanced Durability & Performance (Part No.7071)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.64)

Champion – Double Platinum Power Spark Plug (RC10PYPB4): Enhanced Ignitability & Durability (Part No.7546)

Dorman – Engine Knock Sensor And Harness Kit (Part No.987-014)

Dorman – Engine Knock Sensor And Harness Kit (Part No.962-704)

Dorman – Engine Knock Sensor And Harness Kit (Part No.962-703)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (Part No.4712)

DENSO – Iridium Long-Life Spark Plug: Super Ignition, OE Performance, DXE22HQR-D11S (Part No.3492)

Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5682)

Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP5682)

NGK – Iridium IX Spark Plug (LKAR7BIX-11S): Extreme Ignitability & Durability (Part No.93501)

NGK – Ruthenium HX Spark Plug (LKAR7AHX-S): High Ignitability & Durability (Part No.92274)

Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision Ignition (Part No.AI5682)

NGK – Laser Iridium Spark Plug (DILKAR7H11GS): High Ignitability & Durability (Part No.96964)

NGK – Laser Iridium Spark Plug (ILZKAR8H8S): Fine Wire Tip for Precision (Part No.95112)

NGK – G-Power Spark Plug (LKAR7BGP-S): Enhanced Durability & Efficiency (Part No.92649)

DENSO – Iridium Long-Life Spark Plug: OE Performance, SXE24HCR8S (Part No.3502)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.81)

Hitachi – Ignition Coil Actual OE Part New (Part No.IGC0096)

Carquest Premium – Ignition Coil (Part No.EBC1131)

Carquest Premium – Ignition Coil (Part No.EBC1116)

Hitachi – Ignition Coil Actual OE Part New (Part No.IGC0095)

Delphi – IGNITION COIL (Part No.GN10886)

Dorman – Engine Knock Sensor And Harness Kit (Part No.987-014)