2018 Kia Optima Ignition and Tune-Up Products

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

Popular 2018 Kia Optima Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Knock Sensors

Ignition Starter Switches

Spark Plug Tube Seals

Essential Ignition and Tune-Up Products for 2018 Kia Optimas

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$16.99

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.

Product Features:

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

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$22.95

The DENSO Iridium Long Life spark plug was specifically designed for long service life and consistent performance in the latest, most advanced production cars DENSO’s patented iridium alloy is more durable than even platinum, allowing the center electrode to be shrunk to only 0.7mm in diameter. This produces a dramatic improvement in ignitability and spark plug life. Closely related to platinum and exhibiting even tougher qualities, the rare metal iridium is an ideal material for spark plugs. A fine-wire, 0.7mm iridium center electrode is 360-degree laser welded in place using an exclusive DENSO process, and then matched to a platinum ground electrode. This pair of precision-formed, premium-metal electrodes dramatically extends the plug’s useful life.

Product Features:

Fine-wire iridium center electrode
Platinum ground electrode
360 degree laser-welded spark tip
Sustained spark performance over 100,000 miles
Withstands higher pressures and temperatures

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$3.99

This spark plug features a platinum twin-tip design and a titanium-enhanced ground strap, ensuring superior performance and longevity. The center electrode tip material is made of platinum, providing excellent durability and consistent spark. Additionally, the flat seat type ensures a secure fit, making it an ideal choice for reliable and efficient ignition in your vehicle.

Product Features:

Platinum Twin-Tip Design: The Denso Platinum TT Spark Plug features a unique twin-tip design, enhancing ignition efficiency and performance.
Titanium-Enhanced Ground Strap: Equipped with a titanium-enhanced ground strap, this spark plug ensures superior durability and longevity.
Platinum Center Electrode Tip: The center electrode tip is made of platinum, providing excellent durability and a consistent spark for reliable ignition.
Superior Performance: Designed for enhanced ignition, this spark plug offers reliable and efficient performance, making it a top choice for vehicle maintenance.

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$22.49

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

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90% Ir) and fine wire center electrode
Platinum Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Sustained spark performance over 100,000 miles
Lasts up to three times as long as conventional plugs
Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
Iridium Long Life (SIP)
Superior Durability: The DENSO Iridium Long Life plug features a patented Iridium alloy that is six times harder and eight times stronger than conventional Platinum, ensuring exceptional durability even under extreme conditions.
Fuel Efficiency: The DENSO Iridium Long Life plug helps in better conservation of fuel, making it an economical choice for long-term use.

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$5.99

Twin-Tip design enables faster flame propagation for more complete combustion.

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$69.99

Carquest ignition coils meet original equipment (OE) fit, form and function and are built to ensure reliable starting and performance. Carquest ignition coils are tested to ensure proper spark and perfect fit for each application. These ignition coils are an affordable repair choice to restore the vehicle¿s ignition system performance. Carquest ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

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

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$59.75

Direct Ignition Coil

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$72.99

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

Product Features:

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

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$69.78

The Original Equipment Ignition Coil is the ORIGINAL part, supplied in a plain box, with the car manufacturer’s logo on the part.

Product Features:

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

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$114.99

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

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$92.83

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

Product Features:

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

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$59.99

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

Product Features:

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

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$53.99

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

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$62.99

Carquest 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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$63.99

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$91.99

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

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$147.99

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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$115.99

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$25.99

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$99.99

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$25.05

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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$54.99

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$53.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered and manufactured specifically for the repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$43.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.

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$41.99

MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
MAHLE gaskets is the leader in Domestic, Asian and European applications
The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

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$8.43

ISHINO STONE® – Corteco Ishino Corporation of Japan – has been manufacturing gaskets since 1932 and tier-1 OEM supplier to Toyota, Honda and other Japanese auto manufacturers.

Product Features:

Superb quality and precision manufacturing process to ensure overall sealing dependability
Static sealing solutions are guaranteed to supply strong sealing power to eliminate any leakage
Manufactured to exact OEM specifications

Upgrade your 2018 Kia Optima with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Kia Optima, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Kia or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Optima functioning at its best. At Advance Auto Parts, we offer a wide selection of 32 Ignition and Tune-Up Products for the 2018 Kia Optima, designed to meet your needs without breaking the bank. From Spark Plug replacements to Ignition Switches 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 Kia Optima at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $4.49 to $279.99, with an average price of $62.74. Our 32 Ignition and Tune-Up Products in stock come from 11 trusted brands, so you’re sure to find the right part for your 2018 Kia Optima 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 Kia Optima, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like Autolite, NGK, DENSO, and more. Autolite Ignition and Tune-Up Products start at just $6.49 and boast an impressive 5 stars average rating from customers. NGK and DENSO also bring quality to the table, with Ignition and Tune-Up Products available starting at $11.99, and at an average 5 stars rating. With 684 customer reviews and counting, our 2018 Kia Optima 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 Kia Optima is always ready to roll. We’re committed to providing you with everything you need to keep your Optima in top shape, all in one place. Start shopping confidently below for your 2018 Kia Optima!

Best-Selling Spark Plugs for 2018 Kia Optimas

Enhance the driving experience in your Kia with 17 quality Spark Plug components, starting at $4.49.

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$17.49

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

Product Features:

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

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$11.99

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

Product Features:

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

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$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.
Engineered in the USA: Designed with over 100 years of Autolite engineering experience for superior quality and performance.
Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, showcasing trusted performance and reliability.

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$13.29

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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$4.49

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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$14.99

NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE t

Product Features:

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

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$6.49

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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$16.99

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

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90% Ir) and fine wire center electrode
Platinum ground electrode for extended life
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Sustained spark performance over 100,000 miles
Lasts up to three times as long as conventional plugs
Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
Iridium Long Life
Enhanced Engine Performance: Enjoy more horsepower, faster and easier starts, and fewer misfires under heavy loads, thanks to the advanced design and materials used in this spark plug.
Fuel Efficiency: The DENSO Iridium Long Life plug helps in better conservation of fuel, contributing to improved overall fuel efficiency for your vehicle.

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$18.99

ACTUAL OE or EQUIVALENT HIGH IGNITABILITY DESIGN: SPE tip & iridium alloy center electrode produce the most advanced OE spark plug technology
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
SPE DESIGN: 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: Best for vehicles with OE SPE iridium alloy plugs

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$23.71

Spark Plug

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$21.07

Spark Plug

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$21.07

Spark Plug

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$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.

Product Features:

ACTUAL OE or EQUIVALENT HIGH IGNITABILITY DESIGN: SPE tip & iridium alloy center electrode produce the most advanced OE spark plug technology
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
SPE DESIGN: 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: Best for vehicles with OE SPE iridium alloy plugs

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$16.99

ACTUAL OE or EQUIVALENT HIGH IGNITABILITY DESIGN: SPE tip & iridium alloy center electrode produce the most advanced OE spark plug technology
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
SPE DESIGN: 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: Best for vehicles with OE SPE iridium alloy plugs

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$8.43

Superb quality and precision manufacturing process to ensure overall sealing dependability
Static sealing solutions are guaranteed to supply strong sealing power to eliminate any leakage
Manufactured to exact OEM specifications

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$6.99

The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.80 is a 12mm, 1.000 reach plug with a gasket seat. It fits a wide variety of late model applications, especially import. E3.80 has two legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.

Product Features:

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

Most Popular 2018 Kia Optima Ignition Switches

Customize your Kia with 1 Ignition Switches products like Ignition Starter Switches, all priced under $127.99.

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$127.99

Top Picks for 2018 Kia Optima Ignition Sensors

Upgrade Kia Optimas with top-quality Ignition Sensors parts, including 4 OEM and aftermarket selections for your 2018 model.

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$49.16

The Original Equipment Knock Sensor is the ORIGINAL part, supplied in a plain box, with the car manufacturer’s logo on the part.

Product Features:

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

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$59.99

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

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$53.99

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

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$72.99

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

In-Demand Ignition Coils and Boots for 2018 Kia Optimas

Select from 10 premium Ignition Coils and Boots parts for your 2018 Kia Optima, with prices ranging from $75.99 to $279.99.

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$95.99

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

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$124.99

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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$75.99

HL Mando is the leading original equipment manufacturer utilizing its state-of-art technology and various quality tests to offer customers great satisfaction and safety. HL Mando is producing a variety of Direct Ignition Coils with the latest equipment that boasts highest quality from passenger vehicles to commercial vehicles. With the state-of-the-art electronic control technology that maximizes the safety and convenience of the driver and passenger, HL Mando is being recognized for its high quality and supply system by world’s best automakers. In addition, obtaining ISO/TS 16949 certification proves excellent quality and reliability of suspension parts. – We Are OE!

Product Features:

Direct Original Equipment Replacement
Tested for Quality, Durability, and Reliability
Manufactured in Korea

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$81.99

Direct Original Equipment Replacement
Tested for Quality, Durability, and Reliability
Manufactured in Korea

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$93.99

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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$133.83

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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$279.99

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

Product Features:

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

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$105.99

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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$98.50

Ignition Coil

from

$78.98

Direct Ignition Coil

Top-Rated Ignition and Tune-Up Products Brands For Your 2018 Kia Optima

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2018 Kia Optimas. Below you’ll find some of our best rated Ignition and Tune-Up Products from Autolite, NGK, and DENSO, and more. Ignition and Tune-Up Products from these brands that fit a 2018 Optima start at just $6.49 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 Kia Optima Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Kia Optima, 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 Kia Optima. With over 3 Autolite brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $6.49, with an average price of just $9.16. Plus, with over 136 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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$6.49

This product is not rated

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

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$10.99

This product is not rated

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

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$9.99

(136)

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

“Need for my car”

Popular NGK 2018 Kia Optima Ignition and Tune-Up Products

NGK auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 2018 Kia Optima owner should feel confident when installing genuine NGK parts in their vehicle. To ensure the best fit and performance for your 2018 Optima, Advance Auto Parts carries a full inventory of 7 NGK Ignition and Tune-Up Products. Plus you will be keeping your Kia in peak condition while saving money because prices on these NGK Ignition and Tune-Up Products range from $11.99 to $21.07, plus, with more than 1 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

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$14.99

This product is not rated

Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, LKR7AHX-S

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$18.99

This product is not rated

OE Series Laser Iridium High Ignitability Spark Plug: SPE Tip Design, SILZKR7E11

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$21.07

This product is not rated

Spark Plug

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FAQs for 2018 Kia Optima Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2018 Kia Optimas?

Out of 32 Ignition and Tune-Up Products that fit 2018 Kia Optimas, the following parts are the top sellers:

Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (11015595) – $9.99
Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, LKR7AHX-S (12069665) – $14.99
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (11668322) – $6.49

What’s the price range for 2018 Kia Optima Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2018 Kia Optima start at $4.49 and go up to $279.99 for the most premium parts.

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

The average price for Ignition and Tune-Up Products for the 2018 Kia Optima is $62.74. 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 Kia Optima model years?

Yes, we currently carry Ignition and Tune-Up Products for 19 model years of Kia Optimas between 2001 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 Kia Optima?

The cheapest 2018 Kia Optima Ignition and Tune-Up Products we carry in stock are:

Champion Copper Plus- Boxed – RER8MC (10095338) – $4.49
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (11668322) – $6.49
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (11908609) – $6.99
Spark Plug Tube Seal (11938814) – $8.43
Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (11015595) – $9.99

What are the top-rated Ignition and Tune-Up Products that fit the 2018 Kia Optima?

Out of 684 reviews by customers, our 2018 Kia Optima 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 Kia Optima and their top-rated products:

Spark Plugs
- Iridium IX Spark Plug: Single Iridium Fine Wire, LKR7DIX-11S (12101954) – $11.99
- Iridium Long-Life Spark Plug: OE Performance, last 100K+ Miles, SXU22HCR11S (10477947) – $17.49
- Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (11015595) – $9.99

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

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

Can I get help with 2018 Kia Optima 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 Kia Ignition and Tune-Up Products and more.

What is your return policy for Kia Optima Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Kia Optima 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 Kia Optima Ignition and Tune-Up Products

NGK – OE Series Laser Platinum Spark Plug: Fine Wire Tip Design, PGR5C-11 (Part No.5760)

DENSO – Iridium Long Life Spark Plug (Part No.F1000922012ND)

DENSO – Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition (Part No.4503)

DENSO – Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXU16HR11 (Part No.3478)

DENSO – PW16TT Platinum TT Spark Plug (Part No.4501)

Carquest – Ignition Coil: Meets OE Specifications, 1 Count (Part No.26C1074)

WSO – Direct Ignition Coil (Part No.F3005240316WSO)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1024)

Original Equipment – Direct Ignition Coil – (Coil on Plug) (Part No.F3005229405OEA)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBE1803)

FAE – Knock Sensor (Part No.F6020270492FAE)

Carquest Premium – Knock Sensor (Part No.SBC3941)

Carquest Premium – Knock Sensor (Part No.EKC1006)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3767)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3764)

Carquest Premium – Knock Sensor (Part No.SBC3938)

Carquest Premium – Ignition Switch (Part No.CSC3843)

Carquest Premium – Ignition Switch (Part No.CSC2198)

Carquest Premium – Ignition Switch (Part No.CSC1166)

Carquest Premium – Ignition Switch (Part No.CSC3504)

Carquest – Ignition Switch (Part No.CS1053)

Carquest Premium – Ignition Switch (Part No.CSC3536)

Felpro – SPARK PLUG TUBE SEAL SET (Part No.ES 72974)

Victor Reinz – Spark Plug Tube Seal Set (Part No.18-10155-01)

MAHLE Original – Spark Plug Tube Seal Set (Part No.B31733)

Ishino Stone – Spark Plug Tube Seal (Part No.A8027521376ISH)

DENSO – Iridium Long-Life Spark Plug: OE Performance, last 100K+ Miles, SXU22HCR11S (Part No.3461)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, LKR7DIX-11S (Part No.93175)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5702)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IXUH22I (Part No.5356)

Champion – Champion Copper Plus- Boxed – RER8MC (Part No.445)

NGK – Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, LKR7AHX-S (Part No.96358)

Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP5702)

Autolite Iridium – Iridium Ultra Finewire Spark Plug: Optimal Performance, Durability, Ignitability (Part No.AI5702)

DENSO – Iridium Long-Life Spark Plug: OE Performance, last 100K+ Miles, ZXU22HCR8 (Part No.3501)

NGK – OE Series Laser Iridium High Ignitability Spark Plug: SPE Tip Design, SILZKR7E11 (Part No.92315)

Original Equipment – Spark Plug (Part No.F1000653603OEA)

NGK – Spark Plug (Part No.F1000924061NGK)

NGK – Spark Plug (Part No.F1000695166NGK)

NGK – OE Series Laser Iridium High Ignitability Spark Plug: SPE Tip Design, SILZKR8E8G (Part No.97080)

NGK – OE Series Laser Iridium High Ignitability Spark Plug: SPE Tip Design, SILZKR8E9G (Part No.92422)

Ishino Stone – Spark Plug Tube Seal (Part No.A8027521376ISH)

E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.80)

Carquest Premium – Ignition Switch (Part No.CSC4202)

Original Equipment – Knock Sensor (Part No.F6020398848OEA)

Carquest Premium – Knock Sensor (Part No.SBC3941)

Carquest Premium – Knock Sensor (Part No.EKC1006)

Carquest Premium – Knock Sensor (Part No.EKC1013)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1069)

Delphi – Ignition Coil (Part No.GN10877)

MANDO – New Direct Ignition Coil Assmebly Original Equipment 273002GGA0 (Part No.21A0128)

MANDO – New Direct Ignition Coil Assmebly Original Equipment 273012B120 (Part No.21A0129)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1134)

Delphi – Ignition Coil (Part No.F30001450309DEL)

Carquest Premium – Ignition Coil Set: Meets or Exceeds OE Specifications, 4 Count (Part No.EBC1069-4)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1154)

Autopart International Inc – Ignition Coil (Part No.F30001947421API)

Original Equipment – Direct Ignition Coil (Part No.F3005857413OEA)