2018 Mazda 6 Spark Plugs

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Keep Your 2018 Mazda 6 in Top Shape with Quality Spark Plugs

Whether you’re repairing or upgrading your Spark Plug, using high-quality parts is key to keeping your 2018 Mazda 6 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Spark Plugs. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Spark Plugs from Trusted Brands

Looking for a reliable Spark Plug? We’ve got you covered with options from brands you know and trust like Autolite and DENSO. For example, Autolite Spark Plugs start at just $10.99 with an average 4.6 star rating. DENSO offer similar pricing and quality, backed by strong customer feedback. With over 117 reviews and a solid 4.3 star average, you can shop with confidence knowing other Mazda 6 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2018 Mazda 6 Spark Plug at Advance Auto Parts is around $14.82, with a range that starts at $7.99 and goes up to $26.99. With 13 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like NGK Iridium IX Spark Plug (LKAR7BIX-11S): Extreme Ignitability & Durability, 93501, Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5702, and NGK Ruthenium HX Spark Plug (LKAR7AHX-S): High Ignitability & Durability, 92274 start at just $11.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Spark Plug, don’t forget to check out other key components like Ignition Coils and Boots and Ignition Sensors. At Advance Auto Parts, we’re here to help you keep your 2018 Mazda 6 in peak condition, inside and out.

Essential 2018 Mazda 6 Spark Plugs

Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP103 (Part No.XP103)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP103

from

$11.49
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.
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NGK – NGK Ruthenium HX Spark Plug (TR5AHX): High Ignitability & Durability, 94567 (Part No.94567)

NGK Ruthenium HX Spark Plug (TR5AHX): High Ignitability & Durability, 94567

from

$19.49
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.
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NGK – NGK V-Power Nickel Spark Plug (TR5): Enhanced Ignitability & Reliability, 2238 (Part No.2238)

NGK V-Power Nickel Spark Plug (TR5): Enhanced Ignitability & Reliability, 2238

from

$6.49
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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Champion – Champion Platinum Power Spark Plug RE10PMC5 – Powerful Performance & Longevity, 3032 (Part No.3032)

Champion Platinum Power Spark Plug RE10PMC5 - Powerful Performance & Longevity, 3032

from

$5.99
Champion Platinum Power spark plugs deliver powerful performance with the exclusive Premium alloy that reaches and sustains the correct operating temperature. A fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus and reliable ignition for consistent combustion under demanding conditions. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5364 (Part No.XP5364)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5364

from

$11.49
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.
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Champion – Champion Iridium Spark Plug RES9WYPB4 – Maximum Performance & Longevity, 9901 (Part No.9901)

Champion Iridium Spark Plug RES9WYPB4 - Maximum Performance & Longevity, 9901

from

$10.49
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Champion – Champion Iridium Spark Plug RES8WYPB4 – Maximum Performance & Longevity, 9299 (Part No.9299)

Champion Iridium Spark Plug RES8WYPB4 - Maximum Performance & Longevity, 9299

from

$10.99
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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NGK – NGK Iridium IX Spark Plug (TR55IX): Outstanding Acceleration & Durability, 7164 (Part No.7164)

NGK Iridium IX Spark Plug (TR55IX): Outstanding Acceleration & Durability, 7164

from

$14.99
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 cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
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Motorcraft – Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Fuel Consumption, SP-411 (Part No.SP-411)

Motorcraft Platinum Spark Plug: Enhances Durability & Reduces Fuel Consumption, SP-411

from

$7.29
Engineered to meet strict Ford engineering standards, these spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. With a platinum center electrode tip and nickel ground electrode tip, they are resistant to oxidation and arc erosion. The multi-rib insulator protects against misfire, ensuring reliable performance for up to 100,000 miles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, and help prevent false check engine lights. Designed with high-quality materials, Motorcraft spark plugs deliver original equipment performance and reliability for a broad range of domestic and import cars and trucks.
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Motorcraft – Motorcraft High-Durability Spark Plug: Reduces Misfires & Fuel Consumption, SP-478-X (Part No.SP-478-X)

Motorcraft High-Durability Spark Plug: Reduces Misfires & Fuel Consumption, SP-478-X

from

$11.99
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. They are resistant to oxidation and arc erosion, feature a multi-rib insulator to protect against misfire, and offer service intervals of up to 100,000 miles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles and are designed with high-quality materials to provide reliable performance for almost any application. Motorcraft ignition components also help prevent false check engine lights, ensuring confidence and peace of mind.
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Motorcraft – Motorcraft Platinum Spark Plug (AGSF22WM): Enhanced Durability & Reliability, SP-479 (Part No.SP-479)

Motorcraft Platinum Spark Plug (AGSF22WM): Enhanced Durability & Reliability, SP-479

from

$6.79
Platinum Spark Plug (AGSF22WM) offers enhanced durability and reliability, making it the ideal choice for maintaining peak performance in Ford, Lincoln, and Mercury vehicles. Engineered to meet strict Ford standards, these spark plugs are crafted with platinum center and ground electrode tips for superior resistance to oxidation and arc erosion, ensuring long-lasting performance. The tapered seat design and multi-rib insulator work together to eliminate misfires, reduce fuel consumption, and optimize emissions, while preventing false check engine lights. With service intervals of up to 100,000 miles, these spark plugs deliver exceptional value and reliability for both domestic and import cars and trucks. Backed by Motorcraft’s Service Parts Warranty, they are the exact fit for your vehicle, providing the same high-quality performance as the original equipment installed during manufacturing. Designed for a broad range of applications, Motorcraft spark plugs are the trusted solution for drivers seeking confidence and efficiency on the road.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-950 (Part No.41-950)

ACDelco Double Platinum Spark Plug, 41-950

from

$11.49
ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. ACDelco GM Original Equipment parts are the true OE parts installed during the production 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.
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NGK – NGK Ruthenium HX Spark Plug (LTR6AHX): High Ignitability & Durability, 91276 (Part No.91276)

NGK Ruthenium HX Spark Plug (LTR6AHX): High Ignitability & Durability, 91276

from

$19.49
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.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV16TT, 4718 (Part No.4718)

DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITV16TT, 4718

from

$15.49
Durability of an OE style plug combined with Power & Torque of high performance.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.54 (Part No.E3.54)

E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.54

from

$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 flame kernel and improved power output – up to 6% on average. This advanced design not only boosts energy but also promotes fuel savings and reduces engine carbon deposits for a cleaner, more efficient operation. Constructed with durable nickel center and ground electrode tips, it offers long-lasting reliability. The tapered seat type ensures a secure fit, and the pre-gapped design eliminates the need for adjustments, making installation hassle-free. Upgrade to this spark plug for enhanced performance, better fuel economy, and a cleaner engine.”
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DENSO – DENSO Platinum TT Spark Plug – PT16TT, 4511 (Part No.4511)

DENSO Platinum TT Spark Plug - PT16TT, 4511

from

$6.99
The Platinum TT Spark Plug with its innovative Twin-Tip design ensures faster flame propagation, promoting more complete combustion for enhanced engine performance and efficiency. Crafted with a durable platinum center electrode tip, this spark plug offers exceptional longevity and consistent performance, making it a reliable choice for your vehicle. Its tapered seat type ensures a secure fit, reducing the risk of gas leakage and optimizing combustion chamber sealing. Designed for precision and durability, this spark plug not only improves ignition efficiency but also contributes to smoother engine operation and potentially better fuel economy. A perfect blend of advanced technology and robust materials, it delivers excellent value for drivers seeking long-lasting performance and reliability.
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NGK – NGK Ruthenium HX Spark Plug (LTR6BHX): High Ignitability & Durability, 90495 (Part No.90495)

NGK Ruthenium HX Spark Plug (LTR6BHX): High Ignitability & Durability, 90495

from

$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.
See More

NGK – NGK Laser Iridium Spark Plug (ILTR6A-8G): Fine Wire Tip for Precision, 3787 (Part No.3787)

NGK Laser Iridium Spark Plug (ILTR6A-8G): Fine Wire Tip for Precision, 3787

from

$21.99
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 electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
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Autolite Iridium – Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision Ignition, AI5682 (Part No.AI5682)

Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision Ignition, AI5682

from

$11.49
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.
See More

NGK – NGK Laser Platinum Spark Plug (PLTR6A-10G): Enhanced Ignitability & Longevity, 3587 (Part No.3587)

NGK Laser Platinum Spark Plug (PLTR6A-10G): Enhanced Ignitability & Longevity, 3587

from

$13.99
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 distributorless ignition systems.
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ACDelco – ACDelco Conventional Spark Plug, R42LTS (Part No.R42LTS)

ACDelco Conventional Spark Plug, R42LTS

from

$6.49
ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. 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.
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NGK – NGK Iridium IX Spark Plug (LTR6IX): Extreme Ignitability & Durability, 94374 (Part No.94374)

NGK Iridium IX Spark Plug (LTR6IX): Extreme Ignitability & Durability, 94374

from

$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 cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
See More

Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5364 (Part No.APP5364)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5364

from

$7.49
The Double Platinum Spark Plug is engineered for exceptional durability and performance, 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. Its yttrium-enhanced ground electrode delivers superior heat transfer, allowing it to withstand high temperatures and pressures for extended durability. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is designed to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring robust functionality and longevity. Ideal for those seeking enhanced reliability and superior performance, this spark plug is built to meet the demands of modern engines.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.53 (Part No.E3.53)

E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.53

from

$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 – up to 6% on average – and better fuel efficiency, saving you money while reducing engine carbon deposits. Constructed with durable nickel for both the center and ground electrode tips, this spark plug is built to last. Its tapered seat design ensures a secure fit, and the pre-gapped configuration eliminates the need for adjustments, making installation hassle-free. With its advanced technology, this spark plug not only boosts performance but also promotes cleaner combustion, making it a smart upgrade for any vehicle.”
See More

NGK – NGK Laser Iridium Spark Plug (ILKAR7L11): Fine Wire Tip for Precision, 94124 (Part No.94124)

NGK Laser Iridium Spark Plug (ILKAR7L11): Fine Wire Tip for Precision, 94124

from

$26.99
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 electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
See More

NGK – NGK V-Power Nickel Spark Plug (TR55): Enhanced Ignitability & Performance, 3951 (Part No.3951)

NGK V-Power Nickel Spark Plug (TR55): Enhanced Ignitability & Performance, 3951

from

$7.49
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
See More

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

NGK Iridium IX Spark Plug (LKAR7BIX-11S): Extreme Ignitability & Durability, 93501

from

$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 cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
See More

Motorcraft – Motorcraft Spark Plug: Enhanced Durability & Fuel Efficiency, SP-411-X (Part No.SP-411-X)

Motorcraft Spark Plug: Enhanced Durability & Fuel Efficiency, SP-411-X

from

$7.99
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for unmatched performance and reliability. These spark plugs are precisely matched to specific engines, enhancing durability, eliminating misfires, reducing fuel consumption, and optimizing emissions. They are backed by Motorcraft’s Service Parts Warranty and are an exact fit for Ford, Lincoln, and Mercury vehicles. Resistant to oxidation and arc erosion, they feature a multi-rib insulator to protect against misfires and offer service intervals of up to 100,000 miles. Designed with high-quality materials, Motorcraft Spark Plugs provide reliable performance for almost any application and help prevent false check engine lights, ensuring your vehicle runs smoothly and efficiently.
See More

Most Popular Spark Plugs for 2018 Mazda 6s

Enhance your 2018 Mazda 6 with one of the 13 Spark Plugs we have in stock, starting at just $7.99.

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

DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT, 4712

from

$14.49
Durability of an OE style plug combined with Power & Torque of high performance.
See More

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

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5682

from

$11.49
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.
See More

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

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5682

from

$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.
See More

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

NGK Iridium IX Spark Plug (LKAR7BIX-11S): Extreme Ignitability & Durability, 93501

from

$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 cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
See More

Autolite Iridium – Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5702 (Part No.AI5702)

Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5702

from

$11.49
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.
See More

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

NGK Ruthenium HX Spark Plug (LKAR7AHX-S): High Ignitability & Durability, 92274

from

$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.
See More

NGK – NGK Laser Iridium Spark Plug (ILKAR7L11): Fine Wire Tip for Precision, 94124 (Part No.94124)

NGK Laser Iridium Spark Plug (ILKAR7L11): Fine Wire Tip for Precision, 94124

from

$26.99
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 electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
See More

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

Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision Ignition, AI5682

from

$11.49
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.
See More

NGK – NGK Laser Iridium Spark Plug (DILKAR7M8): High Ignitability & Durability, 90288 (Part No.90288)

NGK Laser Iridium Spark Plug (DILKAR7M8): High Ignitability & Durability, 90288

from

$26.99
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 durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Laser Iridium High Ignitability spark plugs feature raised platinum pad or platinum fine wire tip on the ground electrode for even wear in distributorless ignition systems and improved spark performance.
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DENSO – DENSO Iridium Long-Life Spark Plug: OE Performance, ZC20HPR11, 3532 (Part No.3532)

DENSO Iridium Long-Life Spark Plug: OE Performance, ZC20HPR11, 3532

from

$21.99
Manufactured to the strictest OE performance, durability and emissions standards.
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Champion – Champion Iridium Spark Plug REA8WYPB4 – Maximum Performance & Longevity, 9019 (Part No.9019)

Champion Iridium Spark Plug REA8WYPB4 - Maximum Performance & Longevity, 9019

from

$13.99
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
See More

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

E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.81

from

$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.”
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NGK – NGK G-Power Spark Plug (LKAR7BGP): Enhanced Durability & Fuel Efficiency, 94297 (Part No.94297)

NGK G-Power Spark Plug (LKAR7BGP): Enhanced Durability & Fuel Efficiency, 94297

from

$7.99
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.
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Top-Rated Spark Plug Brands For Your 2018 Mazda 6

When it comes to finding the perfect Spark Plug for your 2018 Mazda 6, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Spark Plug brands including Autolite and DENSO, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $10.99. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 2018 Mazda 6, providing peace of mind with parts that meet or exceed OEM standards.

Popular Autolite 2018 Mazda 6 Spark Plugs

If you’re looking for a top-quality Spark Plug for your 2018 Mazda 6, Advance Auto Parts has exactly what you need with our selection of Autolite Spark Plugs. We have 2 Autolite Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $10.99 and an average cost of $11.24, you’ll find the perfect Spark Plug for your needs and budget. Autolite Spark Plugs for the 2018 Mazda 6 come highly rated, with over 22 customer reviews and an impressive average rating of 4.6 stars. Choosing a Autolite Spark Plug from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

Top-Quality DENSO 2018 Mazda 6 Spark Plugs

For those in search of a high-quality Spark Plug for their 2018 Mazda 6, Advance Auto Parts offers a great selection of DENSO Spark Plugs. With 1 DENSO Spark Plugs in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Spark Plugs start at just $14.49, giving you a range of options to suit your budget. Backed by over 17 customer ratings and an average rating of 4.6 stars, DENSO Spark Plugs provide both reliability and excellent performance. Choosing a DENSO Spark Plug from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT, 4712
from $14.49
(17)
DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT, 4712
“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 2018 Mazda 6 Spark Plugs

What are the best-selling Spark Plugs for 2018 Mazda 6s?

What’s the price range for 2018 Mazda 6 Spark Plugs?

The prices of Spark Plugs for the 2018 Mazda 6 range from $7.99 up to $26.99 for the most premium parts.

What is the average price of a Spark Plug for a 2018 Mazda 6?

The average price for Spark Plugs for the 2018 Mazda 6 is $14.82. Keep in mind the variety of part types within our Spark Plug category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Spark Plugs for other Mazda 6 model years?

Yes, we carry Spark Plugs for 17 model years of Mazda 6s between 2003 and 2021. The following model years are the most popular for Spark Plug purchases: 2021, 2020, 2019, 2017, 2016, 2015, 2014, 2013, and 2012.

Does Advance Auto Parts sell Spark Plugs for any other 2018 Mazda models?

Yes. We stock Spark Plugs for 3 other popular 2018 Mazda models. Some of the most popular are 2018 CX-9 Spark Plugs, 2018 CX-5 Spark Plugs, 2018 MX-5 Miata Spark Plugs, and 2018 CX-3 Spark Plugs.

What are the top-rated Spark Plugs that fit the 2018 Mazda 6?

The one 2018 Mazda 6 Spark Plug we have in stock is the NGK G-Power Spark Plug (LKAR7BGP): Enhanced Durability & Fuel Efficiency, 94297. It costs $7.99.

What types of Spark Plugs do you sell for my 2018 Mazda 6?

We currently have just 1 Spark Plug in stock for a 2018 Mazda 6, and as of 8/2/26, it is a Spark Plug.

Can I get help with 2018 Mazda 6 Spark Plug orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mazda Spark Plugs and more.

What is your return policy for Mazda 6 Spark Plugs?

Advance Auto Parts keeps returns simple. For new Mazda 6 Spark Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.