2018 Jaguar XJ Ignition and Tune-Up Products

Name: Conventional Spark Plug: Reliable Performance & Durability
Brand: ACDelco
SKU: R44XLS
Price: 6.29 USD
Rating: 5.0 (6 reviews)

Below you will find various in-demand Jaguar Ignition and Tune-Up Products, components and accessories for your 2018 XJ. Advance Auto Parts has popular XJ parts like Ignition Coils and Boots, Ignition Sensors, Spark Plugs and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other XJ model years including 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019 and more. Select a category of 2018 Jaguar XJ Ignition and Tune-Up Products below and start saving instantly.

Popular 2018 Jaguar XJ Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Knock Sensors

Essential Ignition and Tune-Up Products for 2018 Jaguar XJs

from

$6.29

ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:

Black Onyx coating helps reduce corrosion
Copper core provides great heat transfer and helps maximize plug durability
Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
Available for use in Marine applications
Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Premium aftermarket replacement part
Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

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$12.99

The Iridium TT Spark Plug delivers the perfect blend of durability and high performance, making it an ideal choice for drivers seeking reliability and power. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm needle tip ground electrode promotes higher spark energy and minimizes heat quenching. Crafted with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of Iridium for unmatched durability. Its 360-degree laser welding process ensures a robust bond and structural integrity, even under extreme conditions exceeding 4000 degrees Fahrenheit. Designed with a flat seat type for a secure fit, it offers consistent performance throughout its lifespan. Beyond power and torque, the Iridium TT enhances fuel economy and reduces emissions, allowing you to drive around the Earth over four times with improved efficiency. This spark plug is the ultimate solution for drivers demanding OE-style reliability combined with high-performance endurance.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power and Torque of high performance.
Withstands temperatures greater than 4000 degree Fahrenheit
Iridium TT
Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
Reliable and Durable: The flat seat type design ensures a secure fit and consistent performance throughout its lifespan.

from

$11.99

The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering, making it a top choice for drivers seeking reliability and enhanced performance. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential for efficient combustion. The 0.7mm needle tip ground electrode promotes higher spark energy while reducing heat quenching, ensuring consistent performance. Built with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of iridium compared to competitors, delivering unmatched durability. The 360-degree laser welding process ensures a robust bond and structural integrity, even under extreme conditions. With the ability to withstand temperatures exceeding 4000 Deg F, this plug is engineered for endurance and peak performance. Its flat seat type and iridium center electrode material further enhance its reliability, making it a premium choice for those who demand both longevity and power from their vehicle.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power and Torque of high performance.
Withstands temperatures greater than 4000 degree Fahrenheit
Iridium TT

from

$6.99

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

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

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$5.29

Champion Platinum Power spark plugs are engineered to deliver exceptional performance and durability, making them an ideal choice for maintaining peak engine efficiency. Featuring a platinum center electrode, these spark plugs ensure long-lasting reliability and consistent performance. The fine-wire center electrode enhances ignitability, while the V-trimmed ground electrode sharpens spark focus for optimal combustion. Constructed with exclusive Heat-Active alloy, the electrodes quickly reach and maintain the ideal operating temperature, ensuring smooth engine operation under various conditions. The platinum-tipped center wire resists wear and helps maintain the proper gap specification throughout the plug’s lifespan. Designed as a standard replacement with a flat seat type and integrated resistor, these spark plugs are a perfect OE replacement for a wide range of engines. With a nickel ground electrode tip and a focus on precision, these spark plugs provide powerful performance and long-term value for your vehicle.

Product Features:

Platinum Power- Premium Spark Plug. Powerful Performance.
Platinum center electrode for long life
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
Integrated Resistor and Flat Seat Type: Equipped with an integrated resistor and flat seat type, making it an ideal OE replacement for various engines.

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$6.99

Double Platinum Spark Plug: Enhanced Durability & Longer Service Life is engineered to deliver exceptional performance and reliability for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring consistent ignition and extended service life. The yttrium-enhanced ground electrode offers superior heat transfer, making it highly durable under extreme temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for added safety. With a mid-projection standard center electrode and platinum tips on both the center and ground electrodes, this performance-grade spark plug is built to outperform copper and standard platinum plugs. Designed with a flat seat type and integrated resistor, it provides reliable functionality and long-lasting value, making it an ideal choice for demanding engine conditions.

Product Features:

Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
The multi-rib insulator prevents flash-over.
Designed with a mid-projection standard center electrode and integrated resistor, this spark plug ensures reliable performance and consistent ignition under demanding engine conditions.

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$8.49

Champion Iridium Spark Plug is engineered for drivers who demand peak performance and durability. Featuring a fine-wire iridium center electrode and a platinum-enhanced ground electrode, this premium spark plug ensures sharper spark focus and greater ignitability, delivering maximum engine efficiency. The V-trimmed ground electrode design promotes precise spark delivery, while the Heat-Active alloy enables the electrodes to quickly reach and maintain optimal operating temperatures under all engine loads. Built with a flat seat type and resistor technology, it ensures stable performance and reduced interference. Designed for longevity, the iridium center electrode offers exceptional durability, making it ideal for high-performance applications. Whether you’re looking to enhance your vehicle’s ignition system or maintain consistent power, this spark plug is a reliable choice for superior performance and extended service life.

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

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$3.99

The Copper Plus spark plug is engineered for dependable performance and durability, making it a reliable choice for maintaining your engine’s efficiency. Featuring a copper core center electrode, it ensures superior conductivity and precise heat control, promoting longer life and consistent wear. The nickel center electrode tip further enhances heat range accuracy, boosting overall reliability. Built to ISO and SAE Standards, this spark plug delivers proven performance while offering superior corrosion resistance for lasting durability. Its flat seat type design ensures a secure fit, optimizing engine efficiency and performance. As a standard replacement grade, this spark plug is designed to meet the demands of everyday driving while maintaining high-quality functionality. Whether you’re looking for enhanced heat control or a secure fit, this spark plug provides excellent value and dependable results for your vehicle.

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
Nickel Center Electrode Tip: Equipped with a nickel center electrode tip, it provides accurate control of the heat range, further enhancing the spark plug’s reliability.
Flat Seat Type: The flat seat type design ensures a secure fit, contributing to the overall efficiency and performance of your engine.

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$2.99

The Copper Plus spark plug delivers dependable performance and durability, making it an ideal OE-type replacement for your vehicle. Featuring a copper core center electrode, it ensures precise heat control for extended lifespan and consistent wear. Its nickel-tipped center and ground electrodes enhance conductivity while resisting fouling, ensuring reliable ignition under various conditions. Built to ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, making it a trustworthy choice for maintaining your engine’s efficiency. With a flat seat type and standard-grade design, it provides a seamless fit and optimal functionality for standard replacement needs.

Product Features:

Resists fouling
Superior corrosion resistance
Dependable and proven performance
Increased conductivity and heat control for good overall wear

from

$28.99

Carquest Premium knock sensors are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium knock sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. We utilize advanced technology to design sensors that are, in many cases, stronger than OE parts. Carquest Premium knock sensors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium knock sensors 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:

Designed to meet or exceed OE specifications for fit, form and function
Trivalent iridescent chromate plating prevents corrosion
Silicone seals prevent moisture intrusion preventing false codes and sensor failure
Wiring harnesses utilize high-temperature insulation when applicable
Extensive design validation testing and 100% end-of-line tested
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$134.99

Every single Delphi ignition coil is designed and endurance tested using high quality materials. This ensures fast starts, consistent engine performance and optimized fuel efficiency. We makes more than 10 million ignition coils for North America each year, and each one is engineered to OE design specifications for vehicles from Ford, Toyota, Nissan, Lexus, GM, Mazda, Chrysler, Subaru, Acura and more.

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

from

$116.99

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.

from

$115.99

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

from

$69.99

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
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$48.99

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
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$111.99

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
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

Upgrade your 2018 Jaguar XJ with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Jaguar XJ, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Jaguar or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your XJ functioning at its best. At Advance Auto Parts, we offer a wide selection of 7 Ignition and Tune-Up Products for the 2018 Jaguar XJ, designed to meet your needs without breaking the bank. From Ignition Coils and Boot replacements to Ignition Sensors 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 Jaguar XJ at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $11.99 to $134.99, with an average price of $60.12. Our 7 Ignition and Tune-Up Products in stock come from 4 trusted brands, so you’re sure to find the right part for your 2018 Jaguar XJ 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 Jaguar XJ, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like DENSO, and more. DENSO Ignition and Tune-Up Products start at just $11.99 and boast an impressive 4.6 stars average rating from customers. With 102 customer reviews and counting, our 2018 Jaguar XJ 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 Oil and Lubricants, Fluids and Chemicals and more to make sure your 2018 Jaguar XJ is always ready to roll. We’re committed to providing you with everything you need to keep your XJ in top shape, all in one place. Start shopping confidently below for your 2018 Jaguar XJ!

Best-Selling Ignition Coils and Boots for 2018 Jaguar XJs

Enhance the driving experience in your Jaguar with 2 quality Ignition Coils and Boot components, starting at $111.99.

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from

$134.99

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

from

$111.99

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
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

Top Picks for 2018 Jaguar XJ Spark Plugs

Upgrade Jaguar XJs with top-quality Spark Plugs parts, including 4 OEM and aftermarket selections for your 2018 model.

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from

$11.99

The Iridium TT Spark Plug combines the durability of an OE-style plug with the unmatched power and torque of high-performance engineering. Featuring a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm Needle Tip Ground Electrode promotes higher spark energy and reduces heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, this spark plug boasts the highest concentration of Iridium for superior durability, complemented by a 360-degree laser welding process for exceptional structural strength. With the ability to withstand temperatures exceeding 4000 degrees Fahrenheit, it delivers reliable performance under extreme conditions. Its advanced Twin-Tip Technology enhances fuel economy, allowing you to drive around the Earth over four times with lower emissions. Constructed with durable materials, including an Iridium Center Electrode Tip and a Flat Seat Type, this spark plug ensures robust and efficient operation, making it a smart choice for drivers seeking endurance and peak performance.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power and Torque of high performance.
Withstands temperatures greater than 4000 degree Fahrenheit
Iridium TT
Enhanced Fuel Economy: Drive around the Earth over 4 times with lower emissions and better fuel economy, thanks to the advanced Twin-Tip Technology.
Durable Materials: Constructed with an Iridium Center Electrode Tip and a Flat Seat Type, ensuring robust and reliable performance.

from

$26.99

Engineered for unmatched performance, this Iridium Long-Life Spark Plug is crafted with DENSO’s patented Iridium Alloy and a fine wire center electrode, delivering exceptional ignition efficiency and durability. Its Platinum Needle Tip Ground Electrode ensures higher spark energy while minimizing heat quenching, making it ideal for high-performance ignition systems. Built to endure extreme temperatures exceeding 4,000 Deg F, this spark plug is designed to last up to three times longer than conventional plugs, maintaining sustained spark performance for over 100,000 miles. The 360-degree laser welding process guarantees a robust bond and structural integrity, ensuring reliable operation under demanding conditions. With a flat seat type and adherence to strict OE standards for performance, durability, and emissions, this spark plug offers a perfect fit and long-lasting value for your vehicle.

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90 percent 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)

from

$26.99

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributor less ignition systems.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance and reliability.
Optimized for OE Applications: Engineered specifically for Original Equipment (OE) applications, meeting the highest standards of quality and durability.
Fine Wire Tip Design: The fine wire tip design of the ILKAR7C10 model ensures efficient and consistent spark delivery.

from

$21.99

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
Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance and reliability.
Overheating Prevention: Constructed with high-grade pure alumina ceramic and a 98% pure copper core, these spark plugs prevent overheating and ensure reliable starts.
Enhanced Spark Performance: Features a raised platinum pad or platinum fine wire tip on the ground electrode, which improves spark performance and ensures even wear in distributorless ignition systems.

Top-Rated Ignition and Tune-Up Products Brands For Your 2018 Jaguar XJ

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2018 Jaguar XJs. Below you’ll find some of our best rated Ignition and Tune-Up Products from DENSO, and more. Ignition and Tune-Up Products from these brands that fit a 2018 XJ start at just $11.99 and are rated as high as 4.6 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular DENSO 2018 Jaguar XJ Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Jaguar XJ, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. DENSO ticks all of those boxes. We offer a wide selection of DENSO Ignition and Tune-Up Products, specifically designed for the 2018 Jaguar XJ. With over 1 DENSO 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 $11.99. Plus, with over 17 customer reviews and an average rating of 4.6 stars, you can trust that our DENSO 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.

from $11.99

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

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FAQs for 2018 Jaguar XJ Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2018 Jaguar XJs?

Out of 7 Ignition and Tune-Up Products that fit 2018 Jaguar XJs, the following parts are the top sellers:

Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11 (20650315) – $26.99
Ignition Coil (12067536) – $134.99
Ignition Knock (Detonation) Sensor (12459307) – $28.99

What’s the price range for 2018 Jaguar XJ Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2018 Jaguar XJ start at $11.99 and go up to $134.99 for the most premium parts.

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

The average price for Ignition and Tune-Up Products for the 2018 Jaguar XJ is $60.12. 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 Jaguar XJ model years?

Yes, we currently carry Ignition and Tune-Up Products for 12 model years of Jaguar XJs between 1968 and 2019. Ignition and Tune-Up Products are bought most frequently for the following model years: 2019, 2017, 2016, 2015, 2014, 2013, 2012, 2011, and 2010.

What are the cheapest Ignition and Tune-Up Products for my 2018 Jaguar XJ?

The cheapest 2018 Jaguar XJ Ignition and Tune-Up Products we carry in stock are:

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (10713051) – $11.99
Laser Iridium Spark Plug (SILZKAR7E8S): High Ignitability & Durability (11637747) – $21.99
Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11 (20650315) – $26.99
Laser Iridium Spark Plug (ILKAR7C10): Fine Wire Tip for Precision (10999874) – $26.99
Ignition Knock (Detonation) Sensor (12459307) – $28.99

What are the top-rated Ignition and Tune-Up Products that fit the 2018 Jaguar XJ?

Out of 102 reviews by customers, our 2018 Jaguar XJ 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 Jaguar XJ and their top-rated products:

Spark Plugs
- Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (10713051) – $11.99

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

As of 11/2/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2018 Jaguar XJ:

Can I get help with 2018 Jaguar XJ 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 Jaguar Ignition and Tune-Up Products and more.

What is your return policy for Jaguar XJ Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Jaguar XJ 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 Jaguar XJ Ignition and Tune-Up Products

ACDelco – Conventional Spark Plug: Reliable Performance & Durability (Part No.R44XLS)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IW16TT (Part No.4708)

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

NGK – V-Power Nickel Spark Plug (BPR5EY): Reliable Performance & Ignitability (Part No.1233)

Champion – Platinum Power Spark Plug (RN14PMC): Powerful Performance & Durability (Part No.3405)

Autolite – Double Platinum Spark Plug: Enhanced Durability & Longer Service Life (Part No.APP63)

Champion – Iridium Spark Plug (RN8WYPB3): Maximum Performance & Longevity (Part No.9804)

Champion – Copper Plus Spark Plug (N12YC): Dependable Performance & Durability (Part No.38)

Champion – Copper Plus Spark Plug (N6YC): Dependable Performance & Durability (Part No.315)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3804)

Delphi – Ignition Coil (Part No.GN10725)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1229)

Delphi – Ignition Coil (Part No.GN10591)

Carquest Premium – Ignition Coil (Part No.EBC1123)

Carquest Premium – Ignition Coil (Part No.EBC1487)

Carquest Premium – Ignition Coil (Part No.EBC1174)

Delphi – Ignition Coil (Part No.GN10725)

Carquest Premium – Ignition Coil (Part No.EBC1174)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3804)

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

DENSO – Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11 (Part No.3442)

NGK – Laser Iridium Spark Plug (ILKAR7C10): Fine Wire Tip for Precision (Part No.94940)

NGK – Laser Iridium Spark Plug (SILZKAR7E8S): High Ignitability & Durability (Part No.93476)