2018 Audi A4 Ignition and Tune-Up Products

Name: Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK20
Brand: DENSO
SKU: 5304
Price: 11.79 USD
Rating: 5.0 (55 reviews)

Below you will find various in-demand Audi Ignition and Tune-Up Products, components and accessories for your 2018 A4. Advance Auto Parts has popular A4 parts like Ignition Kits, Spark Plugs, Ignition Coils and Boots and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other A4 model years including 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019, 2020 and more. Select a category of 2018 Audi A4 Ignition and Tune-Up Products below and start saving instantly.

Popular 2018 Audi A4 Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Direct Ignition Coil Kits

Standard Spark Plug Wires

Ignition Coil Connectors

Ignition Starter Switches

Essential Ignition and Tune-Up Products for 2018 Audi A4s

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$11.79

Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).

Product Features:

World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
Patented 360-degree laser welding assembly process
U-groove and taper cut ground electrode to maximize flame propagation.
Withstands temperatures greater than 4000° Fahrenheit
Burnished nickel plating for high temperature endurance and superior corrosion resistance
Wide range of part numbers for thousands of applications, including classic and collector cars
Iridium Power

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$2.99

Dependable performance. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.

Product Features:

Copper Plus – Dependable Performance and Durability
Copper core center electrode allows for accurate control of heat range for longer life
Superior corrosion resistance
Built to ISO and SAE standards for proven performance
Built to ISO and SAE standards for proven performance

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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: Offers improved durability and wear resistance for a longer-lasting spark plug.
Designed and Engineered in the USA: Reflects over 100 years of Autolite’s engineering experience and expertise.
Gasket Seat Type: Ensures a secure and proper fit for optimal performance.

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$21.57

BERU Platinum spark plugs have electrodes with platinum armoring ensure an extremely high burn-off resistance. The Beru Platinum spark plug is OEM Quality and is guaranteed to meet or exceed the vehicle manufacturers specifications for performance and durability.

Product Features:

Electrodes with platinum armoring ensure an extremely high burn-off resistance.
High thermal conductivity and extremely high resistance to erosion.
Optimal combustion: saves fuel and protects the catalytic converter.
Long life, high dependability.
Good cold starting properties.
Excellent mixture access.
First equipment quality. Where the burn-off resistance and ignition reliability need to be very high, automobile manufacturers such as BMW, Peugeot and Porsche use Beru spark plugs with platinum electrodes.

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$9.49

Coil On Plug Insulator Boot: Spring included, Designed for direct fit

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$152.92

The Karlyn Ignition Wire Set incorporates two layers of high grade silicone for superior heat and voltage protection. The double extruded Silicone-over-Silicone wire contains 19 strands of tinned copper core which provides super conductivity and corrosion resistance.

Product Features:

OE-Equivalent.
OEM style connectors for easy Installation.
Resistant to high temperatures, corrosion and vibration.
Ignition noise suppressed.
Includes O.E. Type Connectors, Looms, Sensors and Harness Clips when required

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$11.14

Prenco Spark Plug Connectors are constructed in our Canadian facility using only premium quality components. All connectors are designed and constructed to match OE fitment and performance. Complete import/domestic coverage, OE quality, OE performance, and OE reliability.

Product Features:

OE-Equivalent and a direct fit application
High profile insulation to prevent arching.
Engineered to withstand extremes in temperatures

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$205.49

Spark Plug Wire Set

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$50.99

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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$31.60

Ignition Switch

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$41.39

Choosing from the comprehensive VIEROL product range means opting for outstanding quality. This is confirmed by the Q+ quality seal for parts in OEM quality MADE IN GERMANY. VIEROL AG is a leading automotive parts distributor located in Oldenburg, Germany. With the trademarks VAICO and VEMO are the service market leaders in more than 125 countries worldwide. As an internationally present automotive supplier, VIEROL AG specializes in electronic and electrical components for German and European vehicles. VIEROL AG quality brands VEMO and VAICO combine innovation and experience, technical expertise and practiced corporate values, commitment to precision and a passion for technology: the invisible, but unquestionable, optimal prerequisites for guaranteed product quality and globally recognized service. Choosing from the comprehensive VIEROL product range means opting for outstanding quality.

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$67.05

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

Designed to OE standards for ease of installation
Copper alloy conductors ensure superior electrical conductivity with low resistive losses
Our parts are 100% tested to verify both mechanical and electrical switching performance
Robust design and high grade materials meet the stringent demands of today’s service professional
BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product

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$128.99

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$29.89

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$30.05

Driveworks offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.

Product Features:

Direct-fit OE replacement ensures ease of installation
Designed to meet OE performance
As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need

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$53.61

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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$36.05

Intermotor® is a complete engine management import line that includes ignition and electrical relays, switches and sensors with a concentration on high technology categories such as computerized engine controls, fuel injection, and emission controls with coverage for every part number with an import nameplate. Intermotor® parts are unrivalled for quality, original fit, form, function, and coverage providing a genuine import part in every box. Intermotor® is the import leader by design.

Product Features:

100% pure copper windings in primary and secondary bobbins improve durability and provide higher resistance to internal shorts and dielectric breakdown
Electronic ignition module profile and feedback signal ensures proper OE fit, form, and function
Thermoplastic housing withstands heat stress for enhanced durability
Internal core made from grain-oriented electrical steel limits loss factor within magnetic circuit to reduce heat that may reduce coil endurance
External core made from oriented silicon steel ensures durability and longevity
Neodymium magnet produces max high voltage output at all speeds
Stainless steel spring resists corrosion
Tin-plated brass terminals improve electrical contact and protect against corrosion

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$44.49

As the innovator and leader in stick coil technology, DENSO has conducted superior testing and inspection processes to insure the highest quality ignition coil. Don’t be fooled by imitations – look for the DENSO name to be sure you’re getting the best.

Product Features:

First Time Fit
Built to DENSO Original Equipment Standards

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$37.99

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:

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.

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$53.99

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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$32.99

100% pure copper windings in primary and secondary bobbins improve durability and provide higher resistance to internal shorts and dielectric breakdown
Electronic ignition module profile and feedback signal ensures proper OE fit, form, and function
Thermoplastic housing withstands heat stress for enhanced durability
Internal core made from grain-oriented electrical steel limits loss factor within magnetic circuit to reduce heat that may reduce coil endurance
External core made from oriented silicon steel ensures durability and longevity
Neodymium magnet produces max high voltage output at all speeds
Stainless steel spring resists corrosion
Tin-plated brass terminals improve electrical contact and protect against corrosion

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$25.99

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$37.64

Kit Contains: 4) High Temperature Leads and Terminal – Pre-Assembled in an OE Type Connector. 4) Heat Shrink Butt Connectors. 1) Terminal Extractor Tool. Failed or Burned Up V with Audi Coils are Most Commonly Caused By Poor Electrical Connections, Wire Harness Breaks or Fouled Spark Plugs. Ignition Coil Harness/Connector Repair Kit Contains: 4) High Temperature Leads and Terminal – Pre-Assembled in an OE Type Connector. 4) Heat Shrink Butt Connectors. 1) Terminal Extractor Tool. Failed or Burned Up V with Audi Coils are Most Commonly Caused By Poor Electrical Connections, Wire Harness Breaks or Fouled Spark Plugs.

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$31.49

WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to

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$46.52

Ign. Coil Connector

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$60.99

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$19.99

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

Upgrade your 2018 Audi A4 with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Audi A4, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your A4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 16 Ignition and Tune-Up Products for the 2018 Audi A4, designed to meet your needs without breaking the bank. From Ignition Kit replacements to Spark Plugs 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 2018 Audi A4 at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $3.49 to $246.99, with an average price of $33.11. Our 16 Ignition and Tune-Up Products in stock come from 8 trusted brands, so you’re sure to find the right part for your 2018 Audi A4 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 2018 Audi A4, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like Autolite, and more. Autolite Ignition and Tune-Up Products start at just $3.49 and boast an impressive 5 stars average rating from customers. With 2,310 customer reviews and counting, our 2018 Audi A4 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 2018 Audi A4 is always ready to roll. We’re committed to providing you with everything you need to keep your A4 in top shape, all in one place. Start shopping confidently below for your 2018 Audi A4!

Best-Selling Ignition Kits for 2018 Audi A4s

Enhance the driving experience in your Audi with 1 quality Ignition Kit components, starting at $246.99.

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$246.99

Direct Ignition Coil

Most Popular 2018 Audi A4 Spark Plugs

Customize your Audi with 9 Spark Plugs products like Spark Plugs, all priced under $18.24.

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$3.49

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration, Autolite Copper Core spark plugs are designed to meet or exceed OES design requirements. Consider upgrading to Autolite Platinum, Double Platinum or Iridium XP plugs for improved engine performance. Copper core plugs are the industry standard.

Product Features:

Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
Multi-rib insulator reduces danger of “flash-over”
One-piece terminal post adds strength
Resistor reduces radio frequency interference (RFI) and electrode erosion
Quick Starts: Autolite Copper Core spark plugs are engineered to ensure your engine starts quickly and reliably every time.
Good Fuel Economy: Designed to optimize fuel efficiency, these spark plugs help you get the most out of every gallon of gas.
Smooth Acceleration: Experience seamless and smooth acceleration with Autolite Copper Core spark plugs, enhancing your driving experience.
OES Design Compliance: These spark plugs are crafted to meet or exceed Original Equipment Service (OES) design requirements, ensuring high-quality performance.
Industry Standard: Autolite Copper Core spark plugs are recognized as the industry standard, backed by over 100 years of engineering expertise and the sale of over 11 billion plugs.

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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: Offers improved durability and wear resistance for a longer-lasting spark plug.
Designed and Engineered in the USA: Reflects over 100 years of Autolite’s engineering experience and expertise.
Gasket Seat Type: Ensures a secure and proper fit for optimal performance.

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$4.79

With over 100 years of engineering expertise and over 11 billion plugs sold, Autolite Platinum spark plugs are designed and engineered in the USA to deliver exceptional performance. Featuring a high nickel alloy side electrode that maintains a precise gap and a full platinum tip that ensures virtually no gap erosion, these spark plugs offer long-lasting durability. 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)
Improved Fuel Economy: Designed to enhance fuel efficiency compared to standard plugs.
Engineered in the USA: Backed by over 100 years of engineering expertise and over 11 billion plugs sold.

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$6.79

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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$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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$17.49

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.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire platinum alloy center electrode provides consistent performance
PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire platinum alloy plugs
Enhanced Fuel Efficiency and Lower Emissions: These spark plugs contribute to improved fuel efficiency and reduced emissions, making them an eco-friendly choice.
Superior Anti-Fouling and Stable Idling: The advanced design provides stable idling and superior resistance to fouling, ensuring consistent engine performance.

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$13.49

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.

Product Features:

HIGH IGNITABILITY PROJECTED SQUARE PLATINUM ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with a unique cut-back PSPE ground electrode
RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
PSPE DESIGN: Projected square platinum electrode shape of the ground electrode provides the best ignitability and service life for high heat engines
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 PSPE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
Enhanced Fuel Burn: Provides a more complete fuel burn, resulting in quicker throttle response, smoother idle, and better cold starts.
Industry-Leading Durability: Ruthenium center electrode ensures exceptional durability and longevity.

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$14.79

Maximum Performance, OE Replacement, KEC6WYPB-1 – the ultimate element for your engine. This premium spark plug features a fine-wire iridium center electrode and a platinum ground electrode, ensuring the sharpest spark focus for maximum performance. The iridium center electrode delivers maximum life, while the V-trimmed ground electrode promotes greater ignitability. With a Heat-Active alloy, the electrodes reach optimal temperature quickly, maintaining stable operating temperatures under all engine loads. This spark plug is designed to provide superior performance and longevity, making it the perfect choice for any engine.

Product Features:

Champion Iridium – Maximum Performance. Premium Spark Plug
Iridium center electrode delivers maximum life
Fine-wire center electrode and V-trimmed for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Maintains stable operating temperature under all engine loads
Heat-Active alloy allows electrodes to reach optimal temperature quickly
Platinum Ground Electrode: Equipped with a platinum ground electrode, this spark plug promotes greater ignitability and enhances overall engine efficiency.
OE Replacement: Designed as an original equipment replacement, the Champion Iridium Spark Plug ensures compatibility and superior performance for any engine.
Resistor Type: This spark plug includes a resistor type, which helps in reducing electromagnetic interference, ensuring smooth and reliable engine operation.

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$18.24

Spark Plug

Top Picks for 2018 Audi A4 Ignition Coils and Boots

Upgrade Audi A4s with top-quality Ignition Coils and Boots parts, including 4 OEM and aftermarket selections for your 2018 model.

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$72.99

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
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

from

$19.99

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$56.99

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.

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$45.25

Ignition Coil

In-Demand Ignition Switches for 2018 Audi A4s

Select from 1 premium Ignition Switches parts for your 2018 Audi A4.

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from

$102.99

Most Sold 2018 Audi A4 Ignition Wires

Explore our best-selling Audi parts for the 2018 A4 among 1 OEM and aftermarket options starting from $9.49.

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from

$9.49

Coil On Plug Insulator Boot: Spring included, Designed for direct fit

Top-Rated Ignition and Tune-Up Products Brands For Your 2018 Audi A4

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2018 Audi A4s. Below you’ll find some of our best rated Ignition and Tune-Up Products from Autolite, and more. Ignition and Tune-Up Products from these brands that fit a 2018 A4 start at just $3.49 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 2018 Audi A4 Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Audi A4, 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 2018 Audi A4. With over 5 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 $3.49, with an average price of just $7.21. Plus, with over 385 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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$3.49

(1)

Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration

“Comes pre gapped and affordable”

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$9.99

(166)

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

“Worked”

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$10.99

This product is not rated

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

“”

FAQs for 2018 Audi A4 Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2018 Audi A4s?

Out of 16 Ignition and Tune-Up Products that fit 2018 Audi A4s, the following parts are the top sellers:

Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability (12102063) – $10.99
OE Series Laser Platinum Spark Plug: Fine Wire Tip Design, PLFER7A8EG (11637750) – $17.49
Ruthenium HX High Ignitability Spark Plug: PSPE Tip Design, LFER7BHX (12069647) – $13.49

What’s the price range for 2018 Audi A4 Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2018 Audi A4 start at $3.49 and go up to $246.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 2018 Audi A4?

The average price for Ignition and Tune-Up Products for the 2018 Audi A4 is $33.11. 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 Audi A4 model years?

Yes, we currently carry Ignition and Tune-Up Products for 24 model years of Audi A4s between 1996 and 2020. Ignition and Tune-Up Products are bought most frequently for the following model years: 2020, 2019, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

What are the cheapest Ignition and Tune-Up Products for my 2018 Audi A4?

The cheapest 2018 Audi A4 Ignition and Tune-Up Products we carry in stock are:

Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (11015588) – $3.49
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (11015495) – $4.79
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (20650247) – $6.79
Coil On Plug Insulator Boot: Spring included, Designed for direct fit (50014346) – $9.49
Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (15650200) – $9.99

What are the top-rated Ignition and Tune-Up Products that fit the 2018 Audi A4?

Out of 2,310 reviews by customers, our 2018 Audi A4 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 2018 Audi A4 and their top-rated products:

Spark Plugs
- Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (11015588) – $3.49
- Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (15650200) – $9.99
- Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (20650247) – $6.79

What types of Ignition and Tune-Up Products do you sell for my 2018 Audi A4?

As of 2/5/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2018 Audi A4:

Can I get help with 2018 Audi A4 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 Audi Ignition and Tune-Up Products and more.

What is your return policy for Audi A4 Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Audi A4 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.

2018 Audi A4 Ignition and Tune-Up Products

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

Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RC9YC4 (Part No.430)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5325)

Beru – Spark Plug (Part No.F10001456527BER)

Carquest Premium – Coil On Plug Insulator Boot: Spring included, Designed for direct fit (Part No.35-7176)

Karlyn – Karlyn Ignition Wire Set (Part No.F102060738KAR)

Prenco – Prenco Spark Plug Connector (Part No.F101086258PRN)

Intermotor Red Wire – Spark Plug Wire Set (Part No.51776)

Carquest Premium – Ignition Switch (Part No.CSA1854)

Febi – Ignition Switch (Part No.M5050115228FEB)

Vemo – Ignition Switch (Part No.M5050115228VMO)

Carquest – Ignition Switch (Part No.CS781)

Carquest Premium – Ignition Switch (Part No.CSC3574)

Vemo – Ignition Switch (Part No.M505063421VMO)

Driveworks – Ignition Coil (Part No.26408)

Delphi – Direct Ignition Coil – (Coil on Plug) (Part No.F3005397860DEL)

Carquest – Ignition Coil (Part No.E1075)

DENSO – Original Equipment Quality Direct Ignition Coil (Part No.673-9303)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1038)

Delphi – IGNITION COIL (Part No.GN10294)

Carquest – Ignition Coil (Part No.E891)

Carquest Premium – A/C Pressure Transducer Connector (Part No.PTA1151)

Karlyn – Ignition Coil Connector Kit, Repair Kit (Part No.F3004331069KAR)

Carquest Premium – Ignition Coil Connector (Part No.HAC1004)

Dorman – Ign. Coil Connector (Part No.F3004706868DOR)

Carquest Premium – Ignition Coil Connector (Part No.PTA3184)

Carquest Premium – Ignition Coil Connector (Part No.PTA1566)

MSD Ignition – Direct Ignition Coil (Part No.87164)

Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.5325)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5325)

Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP5325)

Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP5325)

Autolite Iridium – Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability (Part No.AI5325)

NGK – OE Series Laser Platinum Spark Plug: Fine Wire Tip Design, PLFER7A8EG (Part No.94833)

NGK – Ruthenium HX High Ignitability Spark Plug: PSPE Tip Design, LFER7BHX (Part No.95125)

Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, KEC6WYPB-1 (Part No.9069)

Bosch – Spark Plug (Part No.F10001184274BOS)

Delphi – Ignition Coil (Part No.GN10632)

Carquest Premium – Ignition Coil Connector (Part No.PTA1566)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1291)

Autopart International Inc – Ignition Coil (Part No.F30001928013API)

Carquest Premium – Ignition Switch (Part No.CSA4084)

Carquest Premium – Coil On Plug Insulator Boot: Spring included, Designed for direct fit (Part No.35-7176)