2021 Subaru Forester Ignition and Tune-Up Products
Find Your Specific 2021 Subaru Forester Ignition and Tune-Up Products
Below you will find various in-demand Subaru Ignition and Tune-Up Products, components and accessories for your 2021 Forester. Advance Auto Parts has popular Forester parts like Ignition Sensors, Spark Plugs, Ignition Coils and Boots and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other Forester model years including
2014,
2015,
2016,
2017,
2018,
2019,
2020,
2022,
2023 and more. Select a category of 2021 Subaru Forester Ignition and Tune-Up Products below and start saving instantly.
Popular 2021 Subaru Forester Ignition and Tune-Up Products Categories
Essential Ignition and Tune-Up Products for 2021 Subaru Foresters
Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBE1036)
from
$109.99
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:
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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
Carquest Premium – Ignition Coil (Part No.EBA1274)
from
$113.99
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:
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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
- 100% end-of-line tested to ensure proper performance
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Delphi – Ignition Coil (Part No.GN10685)
from
$152.99
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:
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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
Carquest Premium – Ignition Coil (Part No.EBA1133)
from
$105.99
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:
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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
- 100% end-of-line tested to ensure proper performance
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
NGK – Premium COP Type Ignition Coil: Meets or Exceeds OE Specifications (Part No.48706)
from
$141.99
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:
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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: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
- 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
Carquest Premium – Ignition Coil (Part No.EBA1181)
from
$96.99
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:
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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
- 100% end-of-line tested to ensure proper performance
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Delphi – Ignition Coil (Part No.GN10678)
from
$108.99
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:
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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
Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1058)
from
$112.99
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:
See More
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
NGK – Premium DIS Type Ignition Coil: Meets or Exceeds OE Specifications (Part No.48981)
from
$187.99
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:
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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
Carquest Premium – Knock Sensor (Part No.SBC3964)
from
$99.99
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:
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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.
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4304)
from
$89.99
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:
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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
Dorman – Engine Knock Sensor And Harness Kit (Part No.962-701)
from
$63.99
Check engine light on and vehicle running rough? Could be a failed knock sensor. This ignition knock sensor kit combines both necessary sensors and the wiring harness that joins them for a complete repair in one package.
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Product Features:
- Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
- Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
- Quality assured – benchmarked against original components for performance and quality
- Excellent value – original equipment quality at significant cost savings
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA5406)
from
$314.99
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:
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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
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.EKA1047)
from
$107.99
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:
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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
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA4303)
from
$104.99
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:
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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
Carquest Premium – Knock Sensor (Part No.SBC3818)
from
$82.99
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:
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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.
Carquest Premium – Knock Sensor (Part No.EKC1038)
from
$105.99
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:
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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.
Carquest Premium – Ignition Knock (Detonation) Sensor (Part No.SBA3677)
from
$53.99
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:
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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
DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK16 (Part No.5303)
from
$9.99
The Iridium Power Spark Plug is engineered for the most demanding automotive enthusiasts, delivering no-compromise performance and reliability. Featuring a patented U-groove ground electrode design, it ensures efficient ignition even with leaner fuel mixtures, outperforming conventional plugs. Its iridium center electrode tip offers exceptional durability, withstanding extreme temperatures exceeding 4000 Deg F and lasting twice as long as standard plugs. Precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. With a flat seat type and a wide range of part numbers, this spark plug is compatible with thousands of applications, including classic and collector cars. Whether you’re on the track or the road, this top-of-the-line spark plug delivers unmatched performance and longevity, making it a valuable upgrade for any serious driver.
Product Features:
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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
- Superior Performance: Engineered for maximum performance under extreme conditions, this spark plug delivers more horsepower, faster and easier starts, and fewer misfires under heavy loads.
- Enhanced Fuel Efficiency: Thanks to its advanced design and patented technology, the Iridium Power plug improves fuel efficiency, making it an economical choice for your vehicle.
- Low Voltage Requirement: The DENSO Iridium Power spark plug requires 5,000 volts less to fire compared to conventional spark plugs, ensuring reliable ignition with lower energy consumption.
- Durable Iridium Material: Constructed with a durable iridium center electrode tip and a flat seat type, this spark plug offers long-lasting performance and reliability.
DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT (Part No.4702)
from
$12.99
Experience the perfect blend of durability and high performance with this spark plug, designed to deliver exceptional power and torque. Featuring a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm Needle Tip Ground Electrode enhances spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, enduring temperatures over 4000 Deg F. The advanced 360-degree laser welding process ensures a robust bond and structural integrity, while the Twin-Tip Technology combines a fine wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition. With over 100,000 miles of reliable performance, this plug enhances fuel economy, reduces emissions, and is crafted from premium materials for long-lasting endurance. Its flat seat type design further optimizes performance, making it a top-tier choice for drivers seeking ultimate efficiency and power.
Product Features:
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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
- Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
- Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
- Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
- Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.
Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP5683)
from
$6.99
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 a longer service life compared to copper and standard platinum plugs. The yttrium-enhanced ground electrode delivers superior heat transfer, providing unmatched durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for consistent performance. With a mid-projection center electrode and flat seat type, this performance-grade spark plug is designed to meet demanding engine requirements. Both the center and ground electrode tips are crafted from platinum, ensuring reliable ignition and enhanced durability. Whether you’re seeking improved engine efficiency or reduced maintenance, this spark plug delivers superior value and performance.
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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 flat seat type to meet the demanding requirements of modern engines, ensuring consistent and reliable performance.
Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP3923)
from
$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.
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Product Features:
- 0.6 mm finewire design improves ignitability
- Patented V-trimmed platinum sidewire technology resists wear
- OE equivalent design is engineered for every engine
- Designed for better overall durability with virtually no gap erosion
- Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.
- Designed and Engineered in the USA: Reflects over 100 years of Autolite’s engineering experience and expertise.
- Gasket Seat Type: Ensures a secure and proper fit for optimal performance.
NGK – Laser Iridium Spark Plug (ILKAR8H6): Superior Performance & Durability (Part No.96024)
from
$24.99
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 elect
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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
Champion – Double Platinum Power Spark Plug (REC10PYPB4): Enhanced Ignitability & Durability (Part No.7975)
from
$8.99
The Double Platinum Power Spark Plug is engineered for drivers seeking enhanced performance and durability. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, this premium spark plug ensures greater wear resistance and sharper spark focus for reliable ignition. Its Heat-Active alloy optimizes electrode temperature under all engine loads, delivering consistent performance and improved ignitability. The V-trimmed ground electrode further enhances spark precision, while the flat seat design ensures a secure fit. Designed as a standard replacement, this spark plug is equipped with a resistor to minimize electrical interference. Built to maintain stable operating temperatures and withstand demanding conditions, it offers long-lasting performance and exceptional value for your vehicle.
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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
DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH20 (Part No.5344)
from
$12.29
The Iridium Power Spark Plug features the world’s smallest Iridium Center Electrode at just 0.4mm, delivering unmatched spark precision for maximum combustion and performance. Engineered with a patented 360-degree laser welding assembly process, it ensures durability and reliability even under extreme conditions. The U-groove and taper-cut ground electrode design optimizes flame propagation, while its ability to withstand temperatures exceeding 4000 Deg F guarantees long-lasting performance. Burnished nickel plating enhances resistance to high temperatures and corrosion, making it ideal for a wide range of applications, including classic and collector cars. This spark plug requires 5,000 fewer volts to fire compared to conventional plugs, ensuring superior performance, enhanced horsepower, and improved fuel efficiency. Whether you’re seeking faster starts, fewer misfires under heavy loads, or better overall engine efficiency, this Iridium Power Spark Plug is designed to deliver exceptional results.
Product Features:
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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
- Superior Performance: This spark plug requires 5,000 less volts to fire compared to conventional spark plugs, providing maximum performance even under extreme conditions.
- Enhanced Horsepower and Efficiency: Experience more horsepower, faster and easier starts, fewer misfires under heavy loads, and better fuel efficiency with the DENSO Iridium Power spark plug.
DENSO – U-Groove Spark Plug: OE Performance, K20HR-U11 (Part No.3381)
from
$7.99
The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing for leaner fuel mixtures and improved engine efficiency. Built with a nickel center electrode tip and a flat seat type, this spark plug ensures reliable performance and compatibility with a wide range of vehicles, including classic and collector cars. Precision machine-rolled threads minimize the risk of seizing or cross-threading in aluminum heads, making installation smooth and secure. Designed to last twice as long as conventional plugs, it delivers over 30,000 miles of dependable operation. Each plug is 100% pre-fired to guarantee consistent performance, making it an excellent choice for maintaining OE-level performance in your engine.
Product Features:
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Product Features:
- Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
- Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
- Wide range of part numbers for thousands of applications, including classic and collector cars
- Lasts twice as long as most conventional plugs
- 100 percent pre-fired to assure reliable operation
- U-Groove Conventional
Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP3924)
from
$6.99
Double Platinum Spark Plug offers enhanced durability and performance with its platinum-to-platinum design, effectively reducing gap erosion and minimizing misfires for a longer service life. Engineered for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. Featuring a mid-projection center electrode and flat seat type, this performance-grade spark plug is built with platinum-tipped electrodes for consistent ignition and lasting reliability. Designed to deliver exceptional value, it is a dependable choice for those seeking improved engine efficiency and longevity.
Product Features:
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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 flat seat type to ensure consistent ignition and reliable performance in demanding conditions.
DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (Part No.4712)
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:
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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.
Upgrade your 2021 Subaru Forester with Top-Quality Ignition and Tune-Up Products
When it comes to maintaining or upgrading your 2021 Subaru Forester, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Subaru or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your Forester functioning at its best. At Advance Auto Parts, we offer a wide selection of 8 Ignition and Tune-Up Products for the 2021 Subaru Forester, designed to meet your needs without breaking the bank.
From
Ignition Sensor
replacements to
Spark Plugs
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Ignition and Tune-Up Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Ignition and Tune-Up Products for your 2021 Subaru Forester at great prices.
Our Ignition and Tune-Up Products inventory for this model
ranges from just $6.99 to $194.99, with
an average price of $54.12.
Our 8 Ignition and Tune-Up Products in stock come from 4 trusted brands, so you’re sure to find the right part for your 2021 Subaru Forester 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 Subaru Forester, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names
like Autolite DENSO, and more.
Autolite Ignition and Tune-Up Products
start at just $6.99 and boast an impressive 4.6 stars average rating from customers.
With 255 customer reviews and counting, our 2021 Subaru Forester 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 Subaru Forester is always ready to roll. We’re committed to providing you with everything you need to keep your Forester in top shape, all in one place.
Start shopping confidently below for your 2021 Subaru Forester!
Best-Selling Ignition Sensors for 2021 Subaru Foresters
Enhance the driving experience in your Subaru with 2 quality Ignition Sensor components, starting at $63.99.
Carquest Premium – Knock Sensor (Part No.EKC1038)
from
$105.99
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:
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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.
Dorman – Engine Knock Sensor And Harness Kit (Part No.962-701)
from
$63.99
Check engine light on and vehicle running rough? Could be a failed knock sensor. This ignition knock sensor kit combines both necessary sensors and the wiring harness that joins them for a complete repair in one package.
Product Features:
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Product Features:
- Complete solution – this knock sensor kit includes two knock sensors and the wiring harness that connects them
- Plug-and-play installation – matches original wiring harness, requiring no cutting or splicing
- Quality assured – benchmarked against original components for performance and quality
- Excellent value – original equipment quality at significant cost savings
Most Popular 2021 Subaru Forester Spark Plugs
Customize your Subaru with 5 Spark Plugs products
like Spark Plugs, all
priced under $26.99.
DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (Part No.4712)
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:
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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.
Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5683)
from
$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:
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Product Features:
- 0.6 mm finewire design improves ignitability
- Patented V-trimmed platinum sidewire technology resists wear
- OE equivalent design is engineered for every engine
- Designed for better overall durability with virtually no gap erosion
- Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.
- Engineered in the USA: Designed with over 100 years of Autolite engineering experience for superior quality and performance.
- Proven Track Record: Part of a legacy with over 11 billion spark plugs sold, ensuring trusted performance and reliability.
Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP5683)
from
$6.99
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 a longer service life compared to copper and standard platinum plugs. The yttrium-enhanced ground electrode delivers superior heat transfer, providing unmatched durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for consistent performance. With a mid-projection center electrode and flat seat type, this performance-grade spark plug is designed to meet demanding engine requirements. Both the center and ground electrode tips are crafted from platinum, ensuring reliable ignition and enhanced durability. Whether you’re seeking improved engine efficiency or reduced maintenance, this spark plug delivers superior value and performance.
Product Features:
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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 flat seat type to meet the demanding requirements of modern engines, ensuring consistent and reliable performance.
Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (Part No.AI5683)
from
$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:
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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.
- Superior Durability: Autolite Iridium Ultra Laser Fine wire Spark Plugs are designed to last longer, providing extended service life compared to standard spark plugs.
- OE Fit and Function: Autolite Spark Plugs are the best alternative to original equipment (OE) spark plugs, offering perfect fit, form, and function for all foreign and domestic makes and models.
- High-Quality Construction: As a leading supplier of spark plugs globally, Autolite ensures the highest quality ignition products for both the automotive aftermarket and original equipment manufacturers.
- Value Pricing: Despite their advanced technology and superior performance, Autolite Iridium Ultra Laser Fine wire Spark Plugs are available at a value price, making them an economical choice for vehicle maintenance.
DENSO – Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11 (Part No.3442)
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:
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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)
Top Picks for 2021 Subaru Forester Ignition Coils and Boots
Upgrade Subaru Foresters with top-quality Ignition Coils and Boots parts, including 1 OEM and aftermarket selections for your 2021 model.
Carquest Premium – Ignition Coil (Part No.EBA1932)
from
$194.99
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:
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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
- 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 Subaru Forester
Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2021 Subaru Foresters. Below you’ll find some of our best rated Ignition and Tune-Up Products from Autolite and DENSO, and more. Ignition and Tune-Up Products from these brands that fit a 2021 Forester start at just $6.99 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 Autolite 2021 Subaru Forester Ignition and Tune-Up Products
When it comes to maintaining or upgrading your 2021 Subaru Forester, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. Autolite ticks all of those boxes. We offer a wide selection of Autolite Ignition and Tune-Up Products, specifically designed for the 2021 Subaru Forester. With over 2 Autolite brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $6.99, with an average price of just $8.99. Plus, with over 238 customer reviews and an average rating of 4.6 stars, you can trust that our Autolite Ignition and Tune-Up Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$10.99
(174)
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition
“The spark plugs are good for my car”
Popular DENSO 2021 Subaru Forester 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 Subaru Forester owner should feel confident when installing genuine DENSO parts in their vehicle. To ensure the best fit and performance for your 2021 Forester, Advance Auto Parts carries a full inventory of 1 DENSO Ignition and Tune-Up Products. Plus you will be keeping your Subaru in peak condition while saving money because prices on these DENSO Ignition and Tune-Up Products range up to $11.99, plus, with more than 17 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
$11.99
(17)
Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT
“None”
FAQs for 2021 Subaru Forester Ignition and Tune-Up Products
Which Ignition and Tune-Up Products are best-sellers for 2021 Subaru Foresters?
Out of 8 Ignition and Tune-Up Products that fit 2021 Subaru Foresters, the following parts are the top sellers:
- Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (12008335) – $10.99
- Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11 (20650315) – $26.99
- Knock Sensor (12424522) – $105.99
What’s the price range for 2021 Subaru Forester Ignition and Tune-Up Products?
Ignition and Tune-Up Product prices for the 2021 Subaru Forester start at $6.99 and go up to $194.99 for the most premium parts.
What’s the average price of a Ignition and Tune-Up Product for a 2021 Subaru Forester?
The average price for Ignition and Tune-Up Products for the 2021 Subaru Forester is $54.12. 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 Subaru Forester model years?
What are the cheapest Ignition and Tune-Up Products for my 2021 Subaru Forester?
The cheapest 2021 Subaru Forester Ignition and Tune-Up Products we carry in stock are:
- Double Platinum Spark Plug: Enhanced Durability & Performance (10501017) – $6.99
- Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (10500908) – $10.99
- Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (12008335) – $10.99
- Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (10713051) – $11.99
- Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11 (20650315) – $26.99
What are the top-rated Ignition and Tune-Up Products that fit the 2021 Subaru Forester?
Out of 255 reviews by customers, our 2021 Subaru Forester 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 Subaru Forester and their top-rated products:
- Spark Plugs
- Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT (10713051) – $11.99
- Double Platinum Spark Plug: Enhanced Durability & Performance (10501017) – $6.99
- Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (10500908) – $10.99
What types of Ignition and Tune-Up Products do you sell for my 2021 Subaru Forester?
As of 11/2/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2021 Subaru Forester:
Can I get help with 2021 Subaru Forester 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 Subaru Ignition and Tune-Up Products and more.
What is your return policy for Subaru Forester Ignition and Tune-Up Products?
Advance Auto Parts keeps returns simple. For new Subaru Forester 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.
