2021 Jeep Wrangler Ignition and Tune-Up Products

Name: Double Platinum Spark Plug: Enhanced Durability & Longer Service Life
Brand: Autolite
SKU: APP5263
Price: 6.99 USD
Rating: 4.5 (102 reviews)

Below you will find various in-demand Jeep Ignition and Tune-Up Products, components and accessories for your 2021 Wrangler. Advance Auto Parts has popular Wrangler parts like Spark Plugs, Ignition Sensors, Ignition Coils and Boots and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other Wrangler model years including 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022, 2023 and more. Select a category of 2021 Jeep Wrangler Ignition and Tune-Up Products below and start saving instantly.

Popular 2021 Jeep Wrangler Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Knock Sensors

Essential Ignition and Tune-Up Products for 2021 Jeep Wranglers

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$6.99

Double Platinum Spark Plug: Enhanced Durability & Longer Service Life is engineered for peak performance and reliability. 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. Designed with a mid-projection standard center electrode and tapered seat type, this spark plug is tailored for performance-grade applications. Both the center and ground electrode tips are crafted from platinum, delivering enhanced durability and efficiency. Ideal for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs, making it a valuable upgrade for those seeking reliability and longevity in their ignition system.

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 center electrode and tapered seat type, this spark plug ensures precise fit and optimal performance for performance-grade applications.

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$4.99

Copper Plus spark plug delivers dependable performance and durability, making it an ideal choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures increased conductivity and precise heat control, promoting good overall wear and extending the spark plug’s lifespan. The nickel copper alloy electrode tip provides accurate heat range management for optimal performance, while the tapered seat type guarantees a perfect fit for enhanced reliability. Built to ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, ensuring it withstands the rigors of daily driving. Designed as a standard replacement, it combines functionality and value, making it a reliable solution for maintaining engine efficiency and longevity.

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
Increased Conductivity and Heat Control: The copper core electrode enhances conductivity and heat management, ensuring good overall wear and extending the spark plug’s life.
Nickel Copper Alloy Electrode Tip: The center electrode tip is crafted from a nickel copper alloy, providing accurate control of the heat range for optimal performance.
Optimal Fit with Tapered Seat Type: The tapered seat type ensures a perfect fit, contributing to the overall efficiency and reliability of the spark plug.

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$8.49

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

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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$9.29

Champion Double Platinum Power spark plugs are engineered for enhanced durability and performance, making them a premium choice for reliable ignition. Featuring a platinum fine-wire center electrode and platinum pad ground electrode, these spark plugs deliver greater wear resistance and sharper spark focus for optimal ignitability. The V-trimmed ground electrode ensures precise spark delivery, while the exclusive Heat-Active alloy maintains stable operating temperatures under all engine loads, ensuring consistent performance. Designed as a standard replacement, these spark plugs are equipped with a tapered seat and resistor type for seamless compatibility with a wide range of vehicles. Whether you’re seeking maximum life or improved engine efficiency, Champion Double Platinum Power spark plugs provide the durability and power you need to keep your engine running smoothly.

Product Features:

Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Platinum center and ground electrode for greater wear resistance
Maintains stable operating temperature under all engine loads
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature

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$21.99

Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a top-tier choice for your vehicle. Featuring DENSO’s patented Iridium Alloy with a 90% Iridium fine wire center electrode, it delivers exceptional spark performance and longevity. The platinum ground electrode ensures extended life, while the 360-degree laser welding process guarantees a robust bond and structural integrity. Designed to endure extreme temperatures exceeding 4,000 Deg F, this spark plug is perfect for high-performance ignition systems and specialized fuel setups. With a lifespan of over 100,000 miles, it lasts up to three times longer than conventional plugs, offering unmatched reliability and value. The flat seat type ensures a secure fit, making it a durable and efficient solution for your ignition needs.

Product Features:

Latest OE technology with DENSO’s patented Iridium Alloy (90 percent 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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$4.99

Copper Plus spark plug delivers reliable performance and durability, making it an excellent choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, contributing to extended lifespan and consistent wear. The nickel-tipped center and ground electrodes provide superior corrosion resistance, ensuring dependable operation even in challenging conditions. Designed as a standard replacement, this spark plug meets ISO and SAE Standards, guaranteeing proven performance and compatibility with a wide range of vehicles. Its flat seat type and integrated resistor further enhance functionality, making it a practical and value-driven solution for your engine’s ignition system.

Product Features:

Copper Plus – Dependable Performance and Durability
Superior corrosion resistance
Built to ISO and SAE standards for proven performance

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$7.99

Champion Double Platinum Power spark plugs are engineered to deliver exceptional performance and durability for your vehicle. Featuring a platinum fine-wire center electrode and a platinum pad ground electrode, these spark plugs ensure greater wear resistance and sharper spark focus for reliable ignition. The innovative Heat-Active alloy allows the electrodes to reach optimal operating temperatures under all engine loads, maintaining stable performance in various driving conditions. With a V-trimmed ground electrode design, these spark plugs promote enhanced ignitability, ensuring efficient combustion and improved engine response. Built with a platinum firing tip and a tapered seat type, they offer long-lasting reliability and consistent performance, making them a premium choice for standard replacement. Whether you’re seeking durability or enhanced spark precision, these spark plugs are designed to meet your needs with superior craftsmanship and advanced technology.

Product Features:

Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Platinum center and ground electrode for greater wear resistance
Maintains stable operating temperature under all engine loads
Fine-wire center electrode for greater ignitability
V-trimmed ground electrode promotes sharper spark focus
Heat-Active alloy allows electrodes to reach optimal temperature
Durable and Reliable: Engineered with a platinum firing tip and a tapered seat type for exceptional performance and durability.

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$6.99

Double Platinum Spark Plug: Enhanced Durability & Longer Service Life is engineered for peak performance and reliability. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring extended durability and a longer service life. The yttrium-enhanced ground electrode optimizes heat transfer, making it highly resistant to extreme temperatures and pressure, while the high alumina ceramic insulator provides superior thermal conductivity and dielectric strength. Its multi-rib insulator prevents flash-over, enhancing overall efficiency. Designed with an extra-long projection center electrode and platinum tips on both the center and ground electrodes, this spark plug delivers exceptional performance for distributor-less ignition system (DIS) engines. With a tapered seat type and built-in resistor, it offers a reliable fit and consistent ignition. Perfect for those seeking a performance-grade solution, this spark plug outshines copper and standard platinum plugs, making it a valuable upgrade for your engine’s ignition system.

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 built-in resistor and tapered seat type, this spark plug ensures a reliable fit and consistent ignition for enhanced engine performance.

from

$4.99

The Copper Plus spark plug is engineered for dependable performance and durability, making it a reliable choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures superior conductivity and precise heat control, which contributes to extended lifespan and consistent performance. The nickel-tipped center and ground electrodes enhance durability, while the flat seat type ensures a secure fit. Designed to meet ISO and SAE Standards, this spark plug offers proven performance and superior corrosion resistance, making it a trusted option for standard replacement needs. With its built-in resistor, it delivers optimal functionality for a wide range of applications, ensuring your engine runs smoothly and efficiently.

Product Features:

Copper Plus – Dependable Performance.
Copper core center electrode allows for accurate control of heat range for longer life
Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
Built to ISO and SAE standards for proven performance

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$23.99

Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.

Product Features:

Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
Delphi knock sensors prevent against engine damage from pre-ignition knocking
Calibrated for a wide variety of frequencies to detect shifts, and adjust to provide accurate signals to help maximize engine performance
Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
Ground-isolated design with 2-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
Self-generating piezoelectric design requires no power to the sensor

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$19.99

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 Carquest 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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$221.99

Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA.

Product Features:

2 Prong
OE Style
Direct Fit

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$24.99

The Ignition Knock (Detonation) Sensor monitors vibrations caused by engine knock or detonation to alter the ignition timing and prevent detonation. A piezoelectric crystal generates a varying voltage based upon engine vibration intensity to delay ignition timing to help prevent severe and costly engine damage. Reasons for replacement include check engine light illumination, engine hesitation, poor fuel economy or failed emissions test.

Product Features:

ADVANCED TECHNOLOGY: Manufactured to operation performance standards to meet or exceed OE fit, form, and function to ensure proper ignition timing.
INSTALLATION AND SUPPORT: Mounting threads, harness length and wire gauge match OE for easy, worry free installation.
THE DIFFERENCE: Reinforced components are used to reduce the chance of part failure and prevent corrosion and moisture penetration. Shielded harness prevents electrical interference.

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$40.99

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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$23.29

Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
Delphi knock sensors prevent against engine damage from pre-ignition knocking
Calibrated for a wide variety of frequencies to detect shifts, and adjust to provide accurate signals to help maximize engine performance
Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency
Ground-isolated design with 2-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
Self-generating piezoelectric design requires no power to the sensor

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$30.99

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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$24.99

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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$61.99

This ignition knock sensor, also called a detonation sensor, is designed to match the fit and function of an original equipment sensor on specified vehicles.

Product Features:

Direct replacement – this ignition knock sensor is made to match the fit, function and performance of the original equipment on specified vehicles
Ideal solution – engineered to detect vibrations from knock and other combustion problems and replace a knock sensor that has failed
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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$84.99

Peak coil performance is essential for reliable starting and smooth engine operation. Omix-ADA has you covered with our replacement ignition coils which are designed and built to deliver top performance throughout their long life.

Product Features:

Direct OE Replacement
Built To Original Specifications

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$146.99

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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$53.99

Crown Automotive continues to be the leader in quality replacement parts for Jeep(R) vehicles. Crown has the largest stock of replacement parts for Jeep(R) vehicles, including factory discontinued parts. In fact, many of the older Jeeps are still on (and off) the road thanks to Crown parts. The Crown line consists of axle, body, brake, clutch, cooling, driveline, electrical, engine, exhaust, fuel, steering, suspension, transmission And transfer case components. Crown Automotive also offers an exclusive line of component kits And accessory products.

Product Features:

Manufactured From High Quality Material
Engineered To The Specifications
Meets The Quality Standards
Designed For Performance And Durability
Easy To Install

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$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

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$46.49

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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$81.99

NGK ignition coils are manufactured to meet or exceed OE standards for the highest durability and operational performance, so they can be installed with confidence. NGK and their family of automotive products have over 80 years’ experience and are driven by extreme dedication to innovation, performance and quality. With state-of-the-art manufacturing, inventory and distribution facilities in North America and globally, NGK is dedicated to providing customers with world-class products and services. Developed and rigorously tested in our ISO 17025 accredited test lab under the most extreme conditions, NGK’s coil designs will outperform all others – far beyond operational environments a vehicle would actually experience. NGK ignition coils have vast coverage including late-model domestic and import vehicles. NGK’s OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist.

Product Features:

OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
EASE OF INSTALLATION: Includes mounting hardware and necessary components required for certain applications to ensure worry-free installation
THE NGK DIFFERENCE: Featuring superior materials and design enhancements
EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils

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$76.99

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:

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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$134.99

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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$68.99

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

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$78.99

When it comes to late model performance parts nothing beats bolt-on and direct connection components. These new bolt-in coils are designed with improved materials and windings to produce a stronger output. The MSD blaster coils is a direct replacement for late model dodges.

Product Features:

Direct performance replacement for late model Dodge vehicles
Works w/Stock Ignition As Well As MSD Ignitions
CARB E.O. Approved
Improved mid range RPM power
Connect to factory wiring
Use PN 8877 harness for direct plug in install

Upgrade your 2021 Jeep Wrangler with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2021 Jeep Wrangler, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Jeep or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Wrangler functioning at its best. At Advance Auto Parts, we offer a wide selection of 13 Ignition and Tune-Up Products for the 2021 Jeep Wrangler, designed to meet your needs without breaking the bank. From Spark Plug 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 2021 Jeep Wrangler at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $5.99 to $161.99, with an average price of $29.56. Our 13 Ignition and Tune-Up Products in stock come from 7 trusted brands, so you’re sure to find the right part for your 2021 Jeep Wrangler 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 2021 Jeep Wrangler, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like NGK, DENSO, Autolite, and more. NGK Ignition and Tune-Up Products start at just $26.99 and boast an impressive 4.8 stars average rating from customers. DENSO and Autolite also bring quality to the table, with Ignition and Tune-Up Products available starting at $10.99, and at an average 4.6 stars rating. With 4,000 customer reviews and counting, our 2021 Jeep Wrangler 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 2021 Jeep Wrangler is always ready to roll. We’re committed to providing you with everything you need to keep your Wrangler in top shape, all in one place. Start shopping confidently below for your 2021 Jeep Wrangler!

Best-Selling Spark Plugs for 2021 Jeep Wranglers

Enhance the driving experience in your Jeep with 9 quality Spark Plug components, starting at $5.99.

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$21.99

Latest OE technology with DENSO’s patented Iridium Alloy (90 percent 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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$26.99

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

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.
OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
Even Wear: Features a platinum pad on the ground electrode, designed for even wear in distributorless ignition systems.
Fine Wire Tip Design: The fine wire tip design of the ILZKR7B11 model enhances ignition efficiency and performance.

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$10.99

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 ensures superior wear resistance for extended plug life.

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$13.29

The Iridium Power Spark Plug features the world’s smallest 0.4mm Iridium Center Electrode, delivering unmatched spark precision for maximum combustion efficiency and enhanced engine performance. Engineered with a patented 360-degree laser welding assembly process, it ensures exceptional durability and reliability under extreme conditions. The U-groove and taper-cut ground electrode design optimizes flame propagation, promoting smoother engine operation and improved fuel efficiency. Built to withstand temperatures exceeding 4000 Deg F, this spark plug is burnished with nickel plating for superior resistance to high temperatures and corrosion. Its compatibility spans a wide range of applications, including classic and collector cars, making it a versatile choice for various vehicles. With its flat seat type and premium Iridium tip material, this spark plug guarantees long-lasting performance and consistent ignition, offering excellent value for drivers seeking maximum spark energy and durability.

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 degree 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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$5.99

Double Platinum Spark Plug: Enhanced Durability & Performance is engineered for exceptional reliability and efficiency, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring consistent performance and extended service life. The yttrium-enhanced ground electrode optimizes heat transfer, delivering superior durability under high temperatures and pressure. Its high alumina ceramic insulator provides excellent 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 handle demanding conditions. The flat seat design and integrated resistor further enhance its compatibility and functionality, offering a reliable solution for drivers seeking long-lasting and efficient ignition performance.

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 flat seat and integrated resistor, this spark plug ensures enhanced compatibility and reliable functionality for efficient ignition performance.

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$10.99

Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.

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.

Laser Iridium Spark Plug (ILZKR7G7G): Fine Wire Tip for High Efficiency

from

$23.99

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

from

$10.99

The Champion Iridium spark plug is engineered for maximum performance and durability, making it a premium choice for your vehicle. Featuring a fine-wire iridium center electrode and a platinum-enhanced ground electrode, it delivers exceptional ignitability and a sharper spark focus for optimal engine efficiency. The V-trimmed ground electrode ensures precise spark delivery, while the Heat-Active alloy allows the electrodes to quickly reach and maintain stable operating temperatures under all engine loads. Designed with a flat seat type and equipped with a resistor, this performance-grade spark plug is built to handle the demands of modern engines. Its iridium center electrode ensures extended service life, reducing the need for frequent replacements. Whether you’re looking to enhance your vehicle’s ignition system or maintain peak performance, this spark plug offers unmatched reliability and value.

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

from

$8.49

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. E3.82 is a 12mm, 1.000 reach plug with a gasket seat. It fits a wide variety of late model applications, especially import. E3.82 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 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.
Patented Electrode Configuration: The unique patented electrode design of the E3.82 spark plugs increases combustion pressure, resulting in enhanced power output and improved fuel economy.
Superior Heat Transfer: The two legs securing the Diamond FIRE electrode to the shell ensure excellent heat transfer, promoting better engine performance and longevity.
Wide Compatibility: The E3.82 spark plug, with its 12mm, 1.000 reach and gasket seat, fits a wide variety of late model applications, especially import vehicles.
Enhanced Engine Efficiency: By creating more turbulence in the cylinder, the E3.82 spark plugs improve combustion efficiency, leading to better overall engine performance.

Top Picks for 2021 Jeep Wrangler Ignition Coils and Boots

Upgrade Jeep Wranglers with top-quality Ignition Coils and Boots parts, including 2 OEM and aftermarket selections for your 2021 model.

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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

$161.99

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-Rated Ignition and Tune-Up Products Brands For Your 2021 Jeep Wrangler

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2021 Jeep Wranglers. Below you’ll find some of our best rated Ignition and Tune-Up Products from NGK, DENSO, and Autolite, and more. Ignition and Tune-Up Products from these brands that fit a 2021 Wrangler start at just $10.99 and are rated as high as 4.8 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular NGK 2021 Jeep Wrangler Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2021 Jeep Wrangler, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. NGK ticks all of those boxes. We offer a wide selection of NGK Ignition and Tune-Up Products, specifically designed for the 2021 Jeep Wrangler. With over 1 NGK 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 $26.99. Plus, with over 42 customer reviews and an average rating of 4.8 stars, you can trust that our NGK 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 $26.99

(42)

Laser Iridium Spark Plug (ILZKR7B11): Fine Wire Tip for Efficiency

“Works as intended for a great price”

Popular DENSO 2021 Jeep Wrangler Ignition and Tune-Up Products

DENSO auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 2021 Jeep Wrangler owner should feel confident when installing genuine DENSO parts in their vehicle. To ensure the best fit and performance for your 2021 Wrangler, Advance Auto Parts carries a full inventory of 2 DENSO Ignition and Tune-Up Products. Plus you will be keeping your Jeep in peak condition while saving money because prices on these DENSO Ignition and Tune-Up Products range from $13.29 to $21.99, plus, with more than 160 customer reviews and an impressive 4.6 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

from $21.99

(117)

Iridium Long-Life Spark Plug: OE Performance, SXU22HCR11S

“These are OEM plugs, car runs great with them. Only buy locally at advance auto as buying from online sources chances are they will be counterfeit.”

from $13.29

(43)

Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IXUH22I

“right part first – time – car runs better with the refreshed plugs”

FAQs for 2021 Jeep Wrangler Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2021 Jeep Wranglers?

Out of 13 Ignition and Tune-Up Products that fit 2021 Jeep Wranglers, the following parts are the top sellers:

Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (11015587) – $10.99
Double Platinum Spark Plug: Enhanced Durability & Performance (11668326) – $5.99
Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (12008333) – $10.99

What’s the price range for 2021 Jeep Wrangler Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2021 Jeep Wrangler start at $5.99 and go up to $161.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 2021 Jeep Wrangler?

The average price for Ignition and Tune-Up Products for the 2021 Jeep Wrangler is $29.56. 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 Jeep Wrangler model years?

Yes, we currently carry Ignition and Tune-Up Products for 36 model years of Jeep Wranglers between 1987 and 2025. Ignition and Tune-Up Products are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Ignition and Tune-Up Products for my 2021 Jeep Wrangler?

The cheapest 2021 Jeep Wrangler Ignition and Tune-Up Products we carry in stock are:

Double Platinum Spark Plug: Enhanced Durability & Performance (11668326) – $5.99
DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (12220727) – $8.49
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (11015587) – $10.99
Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (12008333) – $10.99
Iridium Spark Plug (RER8ZWYPB4): Maximum Performance & Longevity (50012496) – $10.99

What are the top-rated Ignition and Tune-Up Products that fit the 2021 Jeep Wrangler?

Out of 4,000 reviews by customers, our 2021 Jeep Wrangler 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 2021 Jeep Wrangler and their top-rated products:

Spark Plugs
- Laser Iridium Spark Plug (ILZKR7B11): Fine Wire Tip for Efficiency (11314712) – $26.99
- Iridium Long-Life Spark Plug: OE Performance, SXU22HCR11S (10477947) – $21.99
- Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IXUH22I (10887930) – $13.29

What types of Ignition and Tune-Up Products do you sell for my 2021 Jeep Wrangler?

As of 11/2/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2021 Jeep Wrangler:

Can I get help with 2021 Jeep Wrangler 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 Jeep Ignition and Tune-Up Products and more.

What is your return policy for Jeep Wrangler Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Jeep Wrangler 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.

2021 Jeep Wrangler Ignition and Tune-Up Products

Autolite – Double Platinum Spark Plug: Enhanced Durability & Longer Service Life (Part No.APP5263)

Champion – Copper Plus Spark Plug (RE16MC): Dependable Performance & Durability (Part No.443)

NGK – V-Power Nickel Spark Plug (FR5-1): Enhanced Ignitability & Reliability (Part No.7252)

Champion – Double Platinum Power Spark Plug (RE14PLP5): Enhanced Durability & Performance (Part No.7440)

DENSO – Iridium Long-Life Spark Plug: OE Performance, SXU22HCR11S (Part No.3461)

Champion – Copper Plus Spark Plug (RFN14LY): Dependable Performance & Durability (Part No.82)

Champion – Double Platinum Power Spark Plug (RE14PMPB): Enhanced Ignitability & Durability (Part No.7570)

Autolite – Double Platinum Spark Plug: Enhanced Durability & Longer Service Life (Part No.APP5426)

Champion – Copper Plus Spark Plug (RC12LYC): Dependable Performance & Durability (Part No.412)

Delphi – Knock Sensor (Part No.AS10266)

Carquest Premium – Knock Sensor (Part No.EKC1012)

Omix – Knock Sensor; 4.7L; 91-06 Jeep Wrangler (Part No.17223.50)

NTK – Ignition Knock (Detonation) Sensor (Part No.ID0232)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA5404)

Delphi – Knock Sensor (Part No.AS10167)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3813)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3669)

Dorman – Engine Knock Sensor And Harness Kit (Part No.987-029)

Omix – Ignition Coil; 3.6L; 11-17 Jeep Grand Cherokee/Wrangler WK/JK (Part No.17247.17)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBE1352)

Crown Auto Jeep Replacmnt – OE Replacement, Single (Part No.5149168AI)

Carquest Premium – Ignition Coil (Part No.EBC1002)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1351)

NGK – Premium DIS Type Ignition Coil: Meets or Exceeds OE Specifications (Part No.48695)

Carquest – Ignition Coil: Meets OE Specifications, 1 Count (Part No.26C1026)

Driveworks – Ignition Coil (Part No.26345)

Delphi – Ignition Coil (Part No.GN10142)

MSD Ignition – Coil; Chrysler Late Model; 90-96 (Part No.8228)

DENSO – Iridium Long-Life Spark Plug: OE Performance, SXU22HCR11S (Part No.3461)

NGK – Laser Iridium Spark Plug (ILZKR7B11): Fine Wire Tip for Efficiency (Part No.7751)

Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5701)

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

Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP5701)

Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (Part No.AI5701)

NGK – Laser Iridium Spark Plug (ILZKR7G7G): Fine Wire Tip for High Efficiency (Part No.90219)

Champion – Iridium Spark Plug (RER8ZWYPB4): Maximum Performance & Longevity (Part No.9417)

E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.82)

Dorman – Engine Knock Sensor And Harness Kit (Part No.987-029)

Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA5404)

Carquest Premium – Ignition Coil (Part No.EBC1319)

Carquest Premium – Ignition Coil (Part No.EBC2019)