2021 Mazda MX-5 Miata Ignition and Tune-Up Products

Name: DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
Brand: E3
SKU: E3.74
Price: 8.49 USD
Rating: 4.5 (176 reviews)

Below you will find various in-demand Mazda Ignition and Tune-Up Products, components and accessories for your 2021 MX-5 Miata. Advance Auto Parts has popular MX-5 Miata parts like Ignition Sensors, Ignition Coils and Boots, Spark Plugs and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other MX-5 Miata model years including 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022 and more. Select a category of 2021 Mazda MX-5 Miata Ignition and Tune-Up Products below and start saving instantly.

Popular 2021 Mazda MX-5 Miata Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Knock Sensors

Essential Ignition and Tune-Up Products for 2021 Mazda MX-5 Miatas

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$8.49

The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.74 is a 14mm, 1.000 reach plug with a taper seat. It fits a wide variety of late model applications, especially Ford applications. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.

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 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.
Enhanced Heat Transfer: Three legs securing the Diamond FIRE electrode to the shell ensure excellent heat transfer and create more turbulence in the cylinder.
Wide Compatibility: The E3.74 spark plug is a 14mm, 1.000 reach plug with a taper seat, fitting a wide variety of late model applications, especially Ford vehicles.
Eco-Friendly Performance: Proven to reduce fuel consumption and improve hydrocarbon emissions, contributing to a cleaner environment.
Long-Term Efficiency: The Diamond FIRE side wire is designed for long-term use, maintaining increased power and reduced fuel consumption over time.

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$4.79

With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite continues to lead the industry. Designed and engineered in the USA, these spark plugs feature a high nickel alloy side electrode that maintains a precise gap, and a full platinum tip that ensures virtually no gap erosion for extended life. The necked-down center electrode fires quicker and cleaner with less voltage, resulting in easier starts, quicker acceleration, and improved fuel economy compared to standard plugs.

Product Features:

High nickel alloy side electrode maintains precise gap
Full platinum tip assures virtually no gap erosion for long life
Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
Engineered in the USA: Backed by over 100 years of engineering expertise and industry leadership.

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$10.99

Durability of an OE style plug combined with Power & Torque of high 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 & Torque of high performance.
Withstands temperatures greater than 4000° Fahrenheit
Iridium TT

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$4.29

The Champion Spark Plug Platinum Power Spark Plug is a premium spark plug that delivers powerful performance. It features a Platinum center electrode that ensures long life and a fine-wire center electrode that provides greater ignitability. The V-trimmed ground electrode promotes sharper spark focus, while the Heat-Active alloy allows the electrodes to reach optimal temperature quickly. The Platinum tipped center wire resists wear and helps to reduce misfires. This spark plug is an OE replacement and has a tapered seat type. It also has a resistor type. With its exclusive Heat-Active alloy and advanced design, the Champion Platinum Power spark plug is an excellent choice for those seeking reliable and high-performance spark plugs.

Product Features:

Platinum Power- Premium Spark Plug.‚ Powerful Performance.
Platinum center electrode for long life
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
OE Replacement: This spark plug is an OE replacement, which means it is designed to meet or exceed the original equipment specifications of your vehicle’s manufacturer.
Tapered Seat Type: The tapered seat type of this spark plug ensures a secure fit in the cylinder head, preventing any leaks or misfires that could affect engine performance.

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$11.99

ACDelco GM Original Equipment Iridium Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They are our latest in spark plug technology and an exact replacement for your vehicle’s original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:

Iridium is the latest in spark plug technology and is an exact replacement for vehicles’ original components
Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability
Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance
Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics
Iridium plugs are laser-welded which provides precision welds, reduces excess debris and wear rate, thus increasing durability
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

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$18.99

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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$11.99

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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$13.24

DENSO Iridium Power spark plugs represent a performance breakthrough. The laser-welded center electrode is only 0.4mm in diameter – the slimmest iridium electrode in the industry. The taper-cut side electrode complements the design, delivering reliable spark energy under the most gruelling pressures and temperatures. DENSO engineers used the power of this miraculous metal to produce an iridium center electrode that is only 0.4mm in diameter. With its superior thermal qualities, this whisker-fine electrode is capable of taking the most extreme heat and punishment. This breakthrough was matched to one of DENSO’s most famous innovations, the patented U-Groove ground electrode. The combination of these two features resulted in the Iridium Power® plug, one of the most advanced and innovative spark plugs on the market.

Product Features:

Tapered cut, U-Groove ground electrode
0.4mm iridium center electrode
360-degree laser welding assembly process
Required ignition voltage reduced
Unsurpassed center electrode durability
Available for many performance and power sports applications, including Corvette, Viper, and Harley-Davidson The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.

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$9.99

Our best spark plug! 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.
Designed and Engineered in the USA: Ensures high-quality manufacturing and engineering standards.
Tapered Seat Type: Ensures a secure fit and optimal performance in compatible engines.

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$85.99

Encore Automotive Genuine OE knock sensor detects excessive/unusual pulses caused by the engine ignition and makes proper adjustments to reduce the risk of damaging pistons. Encore Automotive is dedicated to bringing the latest original equipment technologies to the Aftermarket to provide the highest overall value.

Product Features:

Genuine OE Part
Highly accurate engine vibration detection
Excellent material quality

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$66.69

The FAE OE quality knock sensor is engineered to the exact specifications of the vehicle manufacturer to ensure the replacement sensor is the same in quality and function as the part installed as first equipment.

Product Features:

OEM quality direct fit application
Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
Mounting hole is the same size as OE
Maintains OE specifications for frequency response

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$33.99

MotoRad Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:

Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
Designed to meet or exceed all OEM specifications in fit, form & function
Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.

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$58.99

Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$41.99

Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
Designed to meet or exceed all OEM specifications in fit, form & function
Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.

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$62.99

Carquest ignition coils meet original equipment (OE) fit, form and function and are built to ensure reliable starting and performance. Carquest ignition coils are tested to ensure proper spark and perfect fit for each application. These ignition coils are an affordable repair choice to restore the vehicle¿s ignition system performance. Carquest 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:

Long service life and durable performance
High dielectric strength for reliability
Corrosion-resistant connections
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
High reliability
Long service life

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$147.99

Delphi OE technology ignition products are validated to match the vehicles system; OE quality replacement parts for the right fit , form and function; Delphi coils provide OE performance, durability and electromagnetic capacity level requirements.

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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$177.99

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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$68.99

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
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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$67.93

Every WSO ignition coil is developed and designed for its specific application, and engineered for maximum performance. WORLD SOURCEONE ignition coils are designed to operate reliably and dependably under all operating conditions and engine rpm ranges, providing the highest engine performance, low exhaust emissions, and fuel economy objectives. WSO Direct Ignition Coils are designed to adapt the required energy output to match engine-operating conditions and deliver the optimum energy level needed to ignite a diluted stratified charge.

Product Features:

OE-Equivalent and a direct fit application
Superior, reliable performance compared to competitive products
Lower cost alternative to original equipment
No additional time consuming steps needed for installation
Factory original equipment connectors
Improved coil efficiency reduces the need to generate excessive high voltage
Designed to provide durability and performance
Noise abatement technology to eliminate audible coil noise
Lower primary inductance provides high-speed performance
Maximum available voltage under all operating conditions
TS 16949 Certification

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$81.64

The KARLYN Ignition Coil is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces.

Product Features:

OE-Equivalent and a direct fit application
Meets or exceeds the OE specifications for durability and performance
High profile insulation to prevent arching
Radio-Frequency Interference (RFI) Suppression
Engineered to withstand extremes in temperatures

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$41.89

Direct Ignition Coil

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$138.29

Delphi ignition coils feature precise spark timing response for increased fuel economy and faster crank-to-run. The ignition coils provide accurate electrical energy to create a voltage potential at the spark plug, providing for superior engine performance that adjusts to driving and environment conditions. Plus, like all Delphi ignition system components, they enable engine management systems to maintain tighter control over emissions, economy and performance.

Product Features:

Improved dwell accuracy decreases module and coil temperatures for greater reliability
Noise abatement material between laminations reduces audible coil noise
Cassettes have improved primary connector for greater ease of assembly compared to designs with one connector for each coil
Lower primary inductance provides high-speed performance
Early and precise electronic spark timing helps improve fuel economy and provides faster crank-to-run
Higher energy delivered to combustible mixture provides cleaner combustion to help manufacturers meet on-board diagnostics (OBD II) requirements
Direct connection to spark plugs (via small boot) eliminates spark plug wires
Composite iron coils provide programmable energy
Coil per cylinder dwell overlap electronics deliver better high speed performance and better heat dissipation compared to some conventional technologies
Coil per cylinder ramp and fire electronics decrease power dissipation and increase efficiency
Radio frequency interference (RFI)suppressor optional

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$144.99

Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure confidence and product reliability, every time.

Upgrade your 2021 Mazda MX-5 Miata with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2021 Mazda MX-5 Miata, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mazda or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your MX-5 Miata functioning at its best. At Advance Auto Parts, we offer a wide selection of 14 Ignition and Tune-Up Products for the 2021 Mazda MX-5 Miata, designed to meet your needs without breaking the bank. From Ignition Sensor 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 Mazda MX-5 Miata at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $5.99 to $177.99, with an average price of $41.67. Our 14 Ignition and Tune-Up Products in stock come from 6 trusted brands, so you’re sure to find the right part for your 2021 Mazda MX-5 Miata 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 Mazda MX-5 Miata, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like Autolite DENSO, and more. Autolite Ignition and Tune-Up Products start at just $5.99 and boast an impressive 5 stars average rating from customers. With 117 customer reviews and counting, our 2021 Mazda MX-5 Miata 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 Mazda MX-5 Miata is always ready to roll. We’re committed to providing you with everything you need to keep your MX-5 Miata in top shape, all in one place. Start shopping confidently below for your 2021 Mazda MX-5 Miata!

Best-Selling Ignition Sensors for 2021 Mazda MX-5 Miatas

Enhance the driving experience in your Mazda with 1 quality Ignition Sensor components, starting at $58.99.

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$58.99

Top Picks for 2021 Mazda MX-5 Miata Spark Plugs

Upgrade Mazda MX-5 Miatas with top-quality Spark Plugs parts, including 10 OEM and aftermarket selections for your 2021 model.

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$10.99

Durability of an OE style plug combined with Power & Torque of high 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 & Torque of high performance.
Withstands temperatures greater than 4000░ 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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$9.99

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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$5.99

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

Product Features:

Works to optimize engine performance for a longer life and improved fuel economy
OE design
Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
Platinum ball welding process provides a consistent point of contact for enhanced adhesion

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$11.99

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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$14.99

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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$19.99

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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$10.99

Autolite Iridium Ultra Laser Finewire 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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$20.99

Manufactured to the strictest OE performance, durability and emissions standards.

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90% 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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$20.73

NGK’s Laser Iridium Spark Plugs Provide Superior Ignitability and Long Service Life. Fine Wire Iridium Tipped Center Electrode and Fine Wire Platinum Tipped Ground Electrode Ensures Slow Wear Rate Providing Stable Idle, Superior Anti Fouling, Improved Fuel Efficiency and Lower Emissions.

Product Features:

Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Copper Core Aids in Heat Removal
Triple Seals Prevent Leakage

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$6.79

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

Top-Rated Ignition and Tune-Up Products Brands For Your 2021 Mazda MX-5 Miata

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2021 Mazda MX-5 Miatas. Below you’ll find some of our best rated Ignition and Tune-Up Products from Autolite and DENSO, and more. Ignition and Tune-Up Products from these brands that fit a 2021 MX-5 Miata start at just $5.99 and are rated as high as 5 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular Autolite 2021 Mazda MX-5 Miata Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2021 Mazda MX-5 Miata, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. Autolite ticks all of those boxes. We offer a wide selection of Autolite Ignition and Tune-Up Products, specifically designed for the 2021 Mazda MX-5 Miata. With over 3 Autolite 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 $5.99, with an average price of just $8.99. Plus, with over 22 customer reviews and an average rating of 5 stars, you can trust that our Autolite 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.

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$10.99

This product is not rated

Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability

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$9.99

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Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition

“I’ll give it a 5 even though I didn’t realize much of a power or mpg difference. Properly gapped for my application, so I’ll give it that…”

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Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life

“My car runs smutty”

Popular DENSO 2021 Mazda MX-5 Miata Ignition and Tune-Up Products

DENSO auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 2021 Mazda MX-5 Miata owner should feel confident when installing genuine DENSO parts in their vehicle. To ensure the best fit and performance for your 2021 MX-5 Miata, Advance Auto Parts carries a full inventory of 2 DENSO Ignition and Tune-Up Products. Plus you will be keeping your Mazda in peak condition while saving money because prices on these DENSO Ignition and Tune-Up Products range from $10.99 to $20.99, plus, with more than 17 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

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$20.99

This product is not rated

Iridium Long-Life Spark Plug: OE Performance, last 100K+ Miles, ZC20HPR11

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$10.99

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

“Great direct replacement, vehicle is running smoother. Happy with this choice, and I don’t plan on replacing these plugs for at least 100,000 miles.”

FAQs for 2021 Mazda MX-5 Miata Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2021 Mazda MX-5 Miatas?

Out of 14 Ignition and Tune-Up Products that fit 2021 Mazda MX-5 Miatas, the following parts are the top sellers:

Iridium IX Spark Plug: Single Iridium Fine Wire, LKAR7BIX-11S (12102020) – $11.99
Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, LKAR7AHX-S (12069664) – $14.99
OE Series Laser Iridium Spark Plug: Fine Wire Tip Design, ILKAR7L11 (11000219) – $19.99

What’s the price range for 2021 Mazda MX-5 Miata Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2021 Mazda MX-5 Miata start at $5.99 and go up to $177.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 2021 Mazda MX-5 Miata?

The average price for Ignition and Tune-Up Products for the 2021 Mazda MX-5 Miata is $41.67. 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 Mazda MX-5 Miata model years?

Yes, we currently carry Ignition and Tune-Up Products for 18 model years of Mazda MX-5 Miatas between 2006 and 2024. Ignition and Tune-Up Products are bought most frequently for the following model years: 2022, 2020, 2019, 2018, 2017, 2016, 2015, 2014, and 2013.

What are the cheapest Ignition and Tune-Up Products for my 2021 Mazda MX-5 Miata?

The cheapest 2021 Mazda MX-5 Miata Ignition and Tune-Up Products we carry in stock are:

Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (11668328) – $5.99
G-Power Spark Plug: Single Platinum Tip Design, LKAR7BGP (12569876) – $6.79
Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (10501022) – $9.99
Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability (12008178) – $10.99
Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (10713051) – $10.99

What are the top-rated Ignition and Tune-Up Products that fit the 2021 Mazda MX-5 Miata?

Out of 117 reviews by customers, our 2021 Mazda MX-5 Miata 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 Mazda MX-5 Miata and their top-rated products:

Spark Plugs
- Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (10713051) – $10.99
- Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (10501022) – $9.99
- Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (11668328) – $5.99

What types of Ignition and Tune-Up Products do you sell for my 2021 Mazda MX-5 Miata?

As of 2/5/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2021 Mazda MX-5 Miata:

Can I get help with 2021 Mazda MX-5 Miata 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 Mazda Ignition and Tune-Up Products and more.

What is your return policy for Mazda MX-5 Miata Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Mazda MX-5 Miata 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 Mazda MX-5 Miata Ignition and Tune-Up Products

E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.74)

Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP5364)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH20TT (Part No.4711)

Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RES8PYB5 (Part No.3017)

ACDelco – Iridium Spark Plug: Original Equipment Replacement (Part No.41-988)

NGK – OE Series Laser Iridium Spark Plug: Fine Wire Tip Design, LTR6BI-13 (Part No.91725)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, LKAR7BIX-11S (Part No.93501)

DENSO – Iridium Power Spark Plug (Part No.F1000312474ND)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5364)

Encore Automotive – Genuine OE Ignition Knock (Detonation) Sensor (Part No.SKS-J50011)

FAE – FAE Knock Sensor (Part No.F6020245011FAE)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBC3736)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.EKA1064)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBC3697)

Carquest – Ignition Coil: Meets OE Specifications, 1 Count (Part No.26C1083)

Delphi – Ignition Coil (Part No.GN10499)

Delphi – Ignition Coil (Part No.GN10625)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1028)

WSO – Direct Ignition Coil (Part No.F3005572663WSO)

Karlyn – Direct Ignition Coil – (Coil on Plug) (Part No.F3005338981KAR)

WSO – Direct Ignition Coil (Part No.F3005338981WSO)

Delphi – Direct Ignition Coil – (Coil on Plug) (Part No.F3005338981DEL)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1185)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.EKA1064)

Delphi – Ignition Coil (Part No.GN10625)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1185)

WSO – Direct Ignition Coil (Part No.F3005572663WSO)

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

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

Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP5682)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, LKAR7BIX-11S (Part No.93501)

NGK – Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, LKAR7AHX-S (Part No.92274)

NGK – OE Series Laser Iridium Spark Plug: Fine Wire Tip Design, ILKAR7L11 (Part No.94124)

Autolite Iridium – Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability (Part No.AI5682)

DENSO – Iridium Long-Life Spark Plug: OE Performance, last 100K+ Miles, ZC20HPR11 (Part No.3532)

NGK – Laser Iridium Spark Plug (Part No.F1000462052NGK)

NGK – G-Power Spark Plug: Single Platinum Tip Design, LKAR7BGP (Part No.94297)