2021 Audi S6 Spark Plugs

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Keep Your 2021 Audi S6 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 2021 Audi S6 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Racing Spark Plugs and 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. For example, Autolite Spark Plugs start at just $5.49 with an average 4.6 star rating. With over 530 reviews and a solid 4.8 star average, you can shop with confidence knowing other Audi S6 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2021 Audi S6 Spark Plug at Advance Auto Parts is around $10.99, with a range that starts at $5.49 and goes up to $29.99. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP3924 and NGK Laser Iridium Spark Plug (SILKGR9A7ES): High Ignitability & Durability, 93560 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 2021 Audi S6 in peak condition, inside and out.

Essential 2021 Audi S6 Spark Plugs

Autolite – Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3923 (Part No.AR3923)

Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3923

from

$5.99
The Racing Resistor Spark Plug is expertly crafted to deliver peak performance on the track, featuring a cut-back ground electrode for optimal ignitability and superior heat transfer, ensuring quicker starts and maximum engine efficiency. Its yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and performance modifications under intense conditions. The anti-corrosive nickel plating resists rust better than black oxide, maintaining durability and long-term efficiency. Designed with a high alumina multi-rib ceramic insulator, it offers exceptional thermal conductivity and insulation, preventing flash-over while enhancing strength. With a mid-projection center electrode and nickel-tipped components, this performance-grade spark plug is built to handle the demands of racing environments, delivering reliability and value for enthusiasts seeking top-tier engine performance.
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Autolite – Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3924 (Part No.AR3924)

Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3924

from

$5.99
The Racing Resistor Spark Plug is expertly crafted to deliver peak performance on the track, featuring a cut-back ground electrode for optimal ignitability and enhanced heat transfer, ensuring quicker starts and maximum engine efficiency. Its yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and performance modifications under intense conditions. The anti-corrosive nickel plating resists rust better than black oxide, maintaining durability and long-term reliability. Designed with a high alumina multi-rib ceramic insulator, it offers superior thermal conductivity and insulation, preventing flash-over while increasing strength. With a mid-projection center electrode and nickel-tipped materials for both the center and ground electrodes, this performance-grade spark plug is built to handle demanding environments. The flat seat design and integrated resistor further enhance its functionality, making it a dependable choice for racers seeking consistent ignition and durability.
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E3 – E3 DiamondFIRE Spark Plug: More Power & Fuel Efficiency, E3.48 (Part No.E3.48)

E3 DiamondFIRE Spark Plug: More Power & Fuel Efficiency, E3.48

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 center and ground electrode tips, this spark plug is built to last. Pre-gapped at the factory for hassle-free installation, it provides consistent, reliable performance. With its advanced design, this spark plug maximizes the energy from every drop of fuel, making it an excellent choice for drivers seeking enhanced power, efficiency, and longevity.”
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Bosch – Bosch EVO Spark Plug: Reliable Ignition & Long Service Life, 8501 (Part No.8501)

Bosch EVO Spark Plug: Reliable Ignition & Long Service Life, 8501

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$13.99
BOSCH EVO spark plugs are engineered to ensure reliable ignition throughout its long service life even under extreme conditions in modern engines. Thanks to its improved insulator design and high dielectric strength (greater than 45 kV), the new EVO spark plugs can withstand irregular combustion – known as mega knocking – that can occur in modern, technologically advanced engines. BOSCH EVO spark plugs are developed and produced with the same high quality as original equipment spark plugs. Today’s turbocharged gasoline direct injection engines place high demands on spark plugs – the new BOSCH EVO meets these needs.
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Champion – Champion Double Platinum Power Spark Plug (RC8PYPB4): Enhanced Durability & Performance, 7545 (Part No.7545)

Champion Double Platinum Power Spark Plug (RC8PYPB4): Enhanced Durability & Performance, 7545

from

$9.89
Champion Double Platinum Power spark plugs are engineered for enhanced durability and performance, making them a premium choice for reliable ignition. Featuring a platinum fine-wire center electrode and platinum pad ground electrode, these spark plugs deliver greater wear resistance and sharper spark focus for optimal ignitability. The V-trimmed ground electrode ensures precise spark delivery, while the exclusive Heat-Active alloy maintains stable operating temperatures under all engine loads, ensuring consistent performance. Designed as a standard replacement, these spark plugs are equipped with a flat seat type and integrated resistor for compatibility with a wide range of vehicles. Whether you’re seeking improved engine efficiency or long-lasting reliability, Champion Double Platinum Power spark plugs provide the powerful performance you need.
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ACDelco – ACDelco Double Platinum Spark Plug, 41-829 (Part No.41-829)

ACDelco Double Platinum Spark Plug, 41-829

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$10.29
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.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 3924 (Part No.3924)

Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 3924

from

$5.49
Autolite Copper spark plugs are crafted to ensure reliable performance and durability for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are designed for extended life, while the mid-projection center electrode enhances ignition efficiency. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell provides exceptional corrosion resistance, making them ideal for long-term use. With a flat seat type and integrated resistor, these spark plugs deliver quick starts and meet performance expectations, offering great value for regular-grade applications.
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NGK – NGK Laser Platinum Spark Plug (BKR6EQUP): High Ignitability & Longevity, 3199 (Part No.3199)

NGK Laser Platinum Spark Plug (BKR6EQUP): High Ignitability & Longevity, 3199

from

$17.99
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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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP3924 (Part No.APP3924)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP3924

from

$7.49
Double Platinum Spark Plug offers enhanced durability and performance with its platinum-to-platinum design, effectively reducing gap erosion and minimizing misfires for a longer service life. Engineered for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining 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 reliable operation. Featuring a mid-projection center electrode and flat seat type, this performance-grade spark plug is built with platinum-tipped electrodes for consistent ignition and lasting reliability. Designed to deliver exceptional value, it is a dependable choice for those seeking improved engine efficiency and longevity.
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NGK – NGK Standard Nickel Spark Plug (BKR6EKUB): Reliable OE Performance, 7969 (Part No.7969)

NGK Standard Nickel Spark Plug (BKR6EKUB): Reliable OE Performance, 7969

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$13.99
NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
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Autolite – Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP3923 (Part No.AP3923)

Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP3923

from

$5.49
Autolite Platinum spark plugs are crafted for superior performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, and enhanced acceleration while boosting fuel efficiency. The platinum firing tip resists gap erosion, extending service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell resists corrosion for long-lasting reliability. Designed with a flat gasket seat type, these spark plugs provide a secure seal for optimal engine performance. With a mid-projection standard center electrode and nickel ground electrode tip, they deliver consistent performance for demanding conditions. Perfect for performance-grade applications, these spark plugs combine advanced materials and engineering to ensure your engine runs smoothly and efficiently.
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DENSO – DENSO Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PK20PR-P8, 3245 (Part No.3245)

DENSO Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PK20PR-P8, 3245

from

$14.99
The Double Platinum Spark Plug (PK20PR-P8) is engineered to meet the highest OE standards for performance, durability, and emissions compliance. Featuring OE-grade platinum on both the center and ground electrodes, it ensures superior thermal conductivity and sustained spark performance for over 60,000 miles. Its premium shell construction with machine-rolled threads enhances durability and provides a secure fit, while the flat seat type ensures optimal compatibility. Designed to reduce secondary required voltage, this spark plug increases ignition efficiency, delivering reliable performance and fewer shop comebacks. With its double platinum design, it offers exceptional longevity and consistent ignition, making it a trusted choice for maintaining your vehicle’s peak performance.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 3923 (Part No.3923)

Autolite Copper Resistor Spark Plug: Quick Starts & Reliable Performance, 3923

from

$4.49
Autolite Copper spark plugs are designed to provide reliable performance and quick starts, making them an essential choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are engineered for extended life, while the high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation strength. With a nickel-plated shell, these plugs resist corrosion, offering durability for long-term use. The mid-projection standard center electrode design, combined with nickel tip materials, ensures optimal spark delivery. Designed with a gasket seat type and equipped with a resistor, these spark plugs meet regular-grade specifications, making them a dependable option for a wide range of applications.
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DENSO – DENSO Iridium Long-Life Spark Plug: OE Performance, SK20PR-A8, 3403 (Part No.3403)

DENSO Iridium Long-Life Spark Plug: OE Performance, SK20PR-A8, 3403

from

$21.99
Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a top-tier choice for your vehicle. 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 specialized fuel setups. With a flat seat type and cutting-edge technology, it offers exceptional reliability and efficiency, making it a valuable upgrade for long-lasting engine performance.
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NGK – NGK Iridium IX Spark Plug (BKR6EIX): Enhanced Ignitability & Durability, 6418 (Part No.6418)

NGK Iridium IX Spark Plug (BKR6EIX): Enhanced Ignitability & Durability, 6418

from

$16.99
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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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20, 5304 (Part No.5304)

DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20, 5304

from

$14.49
Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).
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DENSO – DENSO Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition, 4504 (Part No.4504)

DENSO Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition, 4504

from

$3.99
The Platinum TT Spark Plug with its advanced twin-tip design ensures faster flame propagation for more complete combustion, enhancing ignition performance and efficiency. Featuring a platinum center electrode, it delivers excellent conductivity and durability, while the titanium-enhanced ground strap ensures superior performance and extended lifespan. The flat seat type provides a secure fit, making it compatible with a variety of vehicles. Designed for reliability and longevity, this spark plug is a dependable choice for maintaining consistent engine performance. Its high-quality materials and innovative design make it a valuable addition to your vehicle’s ignition system.
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Motorcraft – Motorcraft Double Platinum Spark Plug: Enhanced Durability & Reliability, SP-485 (Part No.SP-485)

Motorcraft Double Platinum Spark Plug: Enhanced Durability & Reliability, SP-485

from

$4.79
Double Platinum Spark Plug by Motorcraft is engineered to deliver exceptional durability and reliability, making it the ideal choice for Ford, Lincoln, and Mercury vehicles. Designed with platinum center and ground electrode tips, these spark plugs resist oxidation and arc erosion, ensuring long-lasting performance. The multi-rib insulator minimizes misfires, while the gasket seat type guarantees a precise fit. With service intervals of up to 100,000 miles, these spark plugs optimize emissions, reduce fuel consumption, and eliminate misfires, providing a smoother driving experience. Backed by Motorcraft’s Service Parts Warranty, they are crafted from high-quality materials to meet strict Ford engineering standards, offering original equipment performance for a wide range of domestic and import cars and trucks. Motorcraft ignition components also help prevent false check engine lights, giving you confidence in your vehicle’s reliability. These spark plugs are what your vehicle was equipped with at the factory, ensuring compatibility and peace of mind.
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NGK – NGK G-Power Platinum Spark Plug (BKR6EGP): Enhanced Durability & Efficiency, 7092 (Part No.7092)

NGK G-Power Platinum Spark Plug (BKR6EGP): Enhanced Durability & Efficiency, 7092

from

$8.99
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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DENSO – DENSO U-Groove Spark Plug: OE Performance, K20PBR-S10, 5061 (Part No.5061)

DENSO U-Groove Spark Plug: OE Performance, K20PBR-S10, 5061

from

$7.99
The U-Groove Spark Plug features an OEM-specified special ground electrode configuration designed for optimal performance and reliability. Its precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. With a durable nickel center electrode tip, this spark plug ensures long-lasting performance, boasting a lifespan of over 30,000 miles. Pre-fired for dependable operation, it delivers consistent ignition and smooth engine performance. The flat seat type and wide range of part numbers make it compatible with thousands of applications, including classic and collector cars. Built to last twice as long as conventional plugs, this spark plug offers exceptional value and durability, making it a trusted choice for maintaining OE performance in your vehicle.
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NGK – NGK Laser Iridium Spark Plug (SILFER8C7ES): High Ignitability & Durability, 94712 (Part No.94712)

NGK Laser Iridium Spark Plug (SILFER8C7ES): High Ignitability & Durability, 94712

from

$16.99
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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ACDelco – ACDelco Conventional Spark Plug, 41-629 (Part No.41-629)

ACDelco Conventional Spark Plug, 41-629

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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Champion – Champion Iridium Spark Plug RC10WMPB4 – Maximum Performance & Longevity, 9002 (Part No.9002)

Champion Iridium Spark Plug RC10WMPB4 - Maximum Performance & Longevity, 9002

from

$11.99
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 V-Power Nickel Spark Plug (BKR6E): Reliable Performance & Ignitability, 6962 (Part No.6962)

NGK V-Power Nickel Spark Plug (BKR6E): Reliable Performance & Ignitability, 6962

from

$6.99
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 RC9PYC – Powerful Performance & Longevity, 3344 (Part No.3344)

Champion Platinum Power Spark Plug RC9PYC - Powerful Performance & Longevity, 3344

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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Champion – Champion Platinum Power Spark Plug RC12PMCB3 – Powerful Performance & Longevity, 3720 (Part No.3720)

Champion Platinum Power Spark Plug RC12PMCB3 - Powerful Performance & Longevity, 3720

from

$5.19
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, XP3923 (Part No.XP3923)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP3923

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 KEC6WYPB-1 – Maximum Performance & Longevity, 9069 (Part No.9069)

Champion Iridium Spark Plug KEC6WYPB-1 - Maximum Performance & Longevity, 9069

from

$18.49
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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Most Popular Racing Spark Plug for 2021 Audi S6s

Enhance your 2021 Audi S6 with this popular Racing Spark Plug we have in stock, for $5.99.

Autolite – Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3924 (Part No.AR3924)

Autolite Racing Resistor Spark Plug: Enhanced Heat Transfer for Peak Performance, AR3924

from

$5.99
The Racing Resistor Spark Plug is expertly crafted to deliver peak performance on the track, featuring a cut-back ground electrode for optimal ignitability and enhanced heat transfer, ensuring quicker starts and maximum engine efficiency. Its yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and performance modifications under intense conditions. The anti-corrosive nickel plating resists rust better than black oxide, maintaining durability and long-term reliability. Designed with a high alumina multi-rib ceramic insulator, it offers superior thermal conductivity and insulation, preventing flash-over while increasing strength. With a mid-projection center electrode and nickel-tipped materials for both the center and ground electrodes, this performance-grade spark plug is built to handle demanding environments. The flat seat design and integrated resistor further enhance its functionality, making it a dependable choice for racers seeking consistent ignition and durability.
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Best-Selling 2021 Audi S6 Spark Plugs

Upgrade your S6 with one of our 5 best-selling Spark Plugs, earning an average 4.83 stars rating across 247 reviews.

Autolite – Autolite Platinum Spark Plug (AP3924): Improved Performance & Durability (Part No.AP3924)

Autolite Platinum Spark Plug (AP3924): Improved Performance & Durability

from

$5.49
The Autolite Platinum spark plug is a high-performance solution designed to enhance your engine’s efficiency and longevity. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, and improved fuel efficiency while resisting gap erosion for an extended service life. Its high alumina ceramic insulator provides excellent thermal conductivity and superior insulation, boosting overall strength and reliability. The multi-rib insulator design prevents flash-over, while the nickel-plated shell offers exceptional corrosion resistance, ensuring durability even in demanding conditions. With a mid-projection standard center electrode and a flat seat type, this spark plug is tailored for optimal performance in older engine designs. The combination of a platinum tip and nickel ground electrode makes it a dependable choice for those seeking enhanced acceleration and long-lasting performance. Whether you’re maintaining or upgrading, this performance-grade spark plug delivers exceptional value and reliability.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP3924 (Part No.APP3924)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP3924

from

$7.49
Double Platinum Spark Plug offers enhanced durability and performance with its platinum-to-platinum design, effectively reducing gap erosion and minimizing misfires for a longer service life. Engineered for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining 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 reliable operation. Featuring a mid-projection center electrode and flat seat type, this performance-grade spark plug is built with platinum-tipped electrodes for consistent ignition and lasting reliability. Designed to deliver exceptional value, it is a dependable choice for those seeking improved engine efficiency and longevity.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 3924 (Part No.3924)

Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 3924

from

$5.49
Autolite Copper spark plugs are crafted to ensure reliable performance and durability for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are designed for extended life, while the mid-projection center electrode enhances ignition efficiency. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell provides exceptional corrosion resistance, making them ideal for long-term use. With a flat seat type and integrated resistor, these spark plugs deliver quick starts and meet performance expectations, offering great value for regular-grade applications.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP3924 (Part No.XP3924)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP3924

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 Laser Iridium Spark Plug (SILKGR9A7ES): High Ignitability & Durability, 93560 (Part No.93560)

NGK Laser Iridium Spark Plug (SILKGR9A7ES): High Ignitability & Durability, 93560

from

$29.99
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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Top-Rated Spark Plug Brands For Your 2021 Audi S6

When it comes to finding the perfect Spark Plug for your 2021 Audi S6, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Spark Plug brands including Autolite, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $5.49. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 2021 Audi S6, providing peace of mind with parts that meet or exceed OEM standards.

Popular Autolite 2021 Audi S6 Spark Plugs

If you’re looking for a top-quality Spark Plug for your 2021 Audi S6, Advance Auto Parts has exactly what you need with our selection of Autolite Spark Plugs. We have 3 Autolite Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $5.49 and an average cost of $6.16, you’ll find the perfect Spark Plug for your needs and budget. Autolite Spark Plugs for the 2021 Audi S6 come highly rated, with over 247 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.

FAQs for 2021 Audi S6 Spark Plugs

What are the best-selling Spark Plugs for 2021 Audi S6s?

Out of 6 Spark Plugs that fit 2021 Audi S6s, the following parts are the top sellers:

What’s the price range for 2021 Audi S6 Spark Plugs?

The prices of Spark Plugs for the 2021 Audi S6 range from $5.49 up to $29.99 for the most premium parts.

What is the average price of a Spark Plug for a 2021 Audi S6?

The average price for Spark Plugs for the 2021 Audi S6 is $10.99. 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 Audi S6 model years?

Yes, we carry Spark Plugs for 18 model years of Audi S6s between 1995 and 2025. The following model years are the most popular for Spark Plug purchases: 2018, 2017, 2016, 2015, 2014, 2013, 2011, 2010, and 2009.

Does Advance Auto Parts sell Spark Plugs for any other 2021 Audi models?

Yes. We stock Spark Plugs for 15 other popular 2021 Audi models. Some of the most popular are 2021 A6 Quattro Spark Plugs, 2021 TT Quattro Spark Plugs, 2021 Q5 Spark Plugs, 2021 Q7 Spark Plugs, and 2021 R8 Spark Plugs.

What are the top-rated Spark Plugs that fit the 2021 Audi S6?

Based on 530 reviews by customers, our 2021 Audi S6 Spark Plugs have an average customer rating of 4.8 stars. These are the highest-rated categories of Spark Plugs for the 2021 Audi S6 and their top-rated products:

What types of Spark Plugs do you sell for my 2021 Audi S6?

As of 8/2/26, these are some of the most in-demand types of Spark Plugs for a 2021 Audi S6:

Can I get help with 2021 Audi S6 Spark Plug orders?

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

What is your return policy for Audi S6 Spark Plugs?

Advance Auto Parts keeps returns simple. For new Audi S6 Spark Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.