2003 Subaru Impreza Ignition Coils and Boots

Essential 2003 Subaru Impreza Ignition Coils and Boots

DENSO – Coil On Plug Boots-4 (Part No.671-4307)

Coil On Plug Boots-4

from

$80.99
DENSO First Time Fit COP boot sets are identical in form fit color and performance to the factory-installed boots. Every part of each COP boot set construction meets or exceeds OE/OES standards.

Product Features:
  • OE design ensures a tight boot seal that protects against moisture intrusion
  • High temperature resistant material provides greater protection against thermal overload
  • Stainless steel internal spring with resistor to suppress RFI and deliver maximum voltage to the plug
  • Engineered to the specifications used by the original vehicle manufacturer for an exact fit
See More

DENSO – Coil On Plug Boots-4 (Part No.671-4306)

Coil On Plug Boots-4

from

$71.99
DENSO First Time Fit COP boot sets are identical in form fit color and performance to the factory-installed boots. Every part of each COP boot set construction meets or exceeds OE/OES standards.

Product Features:
  • OE design ensures a tight boot seal that protects against moisture intrusion
  • High temperature resistant material provides greater protection against thermal overload
  • Stainless steel internal spring with resistor to suppress RFI and deliver maximum voltage to the plug
  • Engineered to the specifications used by the original vehicle manufacturer for an exact fit
See More

DENSO – Spark Plug Wire Set: Carbon Core, 4 Wire Set (Part No.671-4244)

Spark Plug Wire Set: Carbon Core, 4 Wire Set

from

$83.99
DENSO First Time Fit Ignition Wire Sets are identical in form fit color and performance to the factory-installed wire sets. Every part of each wire sets construction meets or exceeds OE/OES standards.

Product Features:
  • Each wire is pre-cut to exact length so the wire set is ready to install right out of the box
  • Identical OE end caps are designed to “click” into place for easy installation and a secure fit
  • Strong connections – through a patented process, the terminals are attached to provide an extremely strong connection, ensuring the cable and boot will not separate during removal and installation
See More

Carquest Premium – Center High Mount Stop Light Connector (Part No.PTA1472)

Center High Mount Stop Light Connector

from

$33.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Dorman – Ignition Coil Connector (Part No.645-787)

Ignition Coil Connector

from

$28.99
This ignition coil connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this ignition coil connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Delphi – Ignition Coil (Part No.GN10434)

Ignition Coil

from

$122.99
Delphi OE technology ignition products are validated to match the vehicles system; OE quality replacement parts for the right fit , form and function; Delphi coils provide OE performance, durability and electromagnetic capacity level requirements.

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

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1058)

Ignition Coil: Meets or Exceeds OE Specifications, 1 Count

from

$107.99
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
See More

WSO – Ignition Coil (Part No.F3000305581WSO)

Ignition Coil

from

$110.42
WORLD SOURCEONE ignition coils are designed to operate reliably and dependably under all operating conditions and engine rpm ranges, providing the highest engine performance, low exhaust emissions, and fuel economy objectives. Every WSO ignition coil is developed and designed for its specific application, and engineered for maximum performance.

Product Features:
  • OE-Equivalent and a direct fit application
  • Superior, reliable performance compared to competitive products
  • Lower cost alternative to original equipment
  • No additional time consuming steps needed for installation
  • Factory original equipment connectors
  • Improved coil efficiency reduces the need to generate excessive high voltage
  • Designed to provide durability and performance
  • Noise abatement technology to eliminate audible coil noise
  • Lower primary inductance provides high-speed performance
  • Maximum available voltage under all operating conditions
  • TS 16949 Certification
See More

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1072)

Ignition Coil: Meets or Exceeds OE Specifications, 1 Count

from

$153.99
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
See More

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1128)

Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece

from

$94.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • 100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
  • Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure confidence and product reliability, every time.
See More

Diamond – Ignition Coil (Part No.F3000305581DEM)

Ignition Coil

from

$150.17
The Diamond Ignition Coil is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces.

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

WSO – Ignition Coil (Part No.F3000302237WSO)

Ignition Coil

from

$110.64
WORLD SOURCEONE ignition coils are designed to operate reliably and dependably under all operating conditions and engine rpm ranges, providing the highest engine performance, low exhaust emissions, and fuel economy objectives. Every WSO ignition coil is developed and designed for its specific application, and engineered for maximum performance.

Product Features:
  • OE-Equivalent and a direct fit application
  • Superior, reliable performance compared to competitive products
  • Lower cost alternative to original equipment
  • No additional time consuming steps needed for installation
  • Factory original equipment connectors
  • Improved coil efficiency reduces the need to generate excessive high voltage
  • Designed to provide durability and performance
  • Noise abatement technology to eliminate audible coil noise
  • Lower primary inductance provides high-speed performance
  • Maximum available voltage under all operating conditions
  • TS 16949 Certification
See More

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1664)

Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece

from

$71.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • 100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
  • Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure confidence and product reliability, every time.
See More

Richporter Technology – Spectra Premium Ignition Coil (Part No.F3000118368RPT)

Spectra Premium Ignition Coil

from

$62.02
Spectra Premium coils are designed and produced under a strict TS16949 quality control process. From raw materials to the final assembly; every production process goes through rigorous testing requirements to ensure each product we produce meets OE specifications. All these quality control procedures help ensure Spectra Premium coils deliver consistent premium quality, performance and dependability that customers can rely on.

Product Features:
  • All coils are durability tested at 100 cycles of thermal shock (-50 to 300F), to ensure reliability from extreme vibration
  • 24 hours salt spray test ensures sensors provide high corrosion resistance.
  • 100% copper in both primary and secondary windings.
  • 100% tested to OE specification.
  • High voltage enamel coating insulating the windings
See More

NGK – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.48744)

Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece

from

$127.99
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 year’s experience and are driven by extreme dedication to innovation, performance and quality. 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

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
See More

Diamond – Direct Ignition Coil – (Coil on Plug) (Part No.F3005389912DEM)

Direct Ignition Coil - (Coil on Plug)

from

$80.99
The Diamond Ignition Coil is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces.

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

Carquest Premium – Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit (Part No.35-4277)

Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit

from

$71.99
Product Features:
  • SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
  • Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
  • 100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
  • EPDM inner insulation stops power-robbing voltage leaks.
  • With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
  • Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
  • Excellent interference suppression and consistent performance
  • Easy lock terminals for more convenient installation.
  • Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
  • Broad coverage available for most vehicles on the road today
  • Include grease pack to ensure easy installation and removal
See More

Carquest Premium – Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit (Part No.35-4437)

Spark Plug Wire Set: 4 Wires, Increased performance, Designed for direct fit

from

$61.99
Product Features:
  • SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
  • Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
  • 100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
  • EPDM inner insulation stops power-robbing voltage leaks.
  • With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
  • Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
  • Excellent interference suppression and consistent performance
  • Easy lock terminals for more convenient installation.
  • Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
  • Broad coverage available for most vehicles on the road today
  • Include grease pack to ensure easy installation and removal
See More

NGK – Spark Plug Wire Set (Part No.9237)

Spark Plug Wire Set

from

$70.99
NGK variable pitch resistor cables provide uniform resistance and ensure outstanding electrical conductivity in high-quality cables. Outer EPDM/silicone jacket and inner insulation contain high voltage currents for excellent dielectric strength. NGK varia

Product Features:
  • PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
  • BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
  • STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
  • PREMIUM ALLOY WINDING: Variable pitch winding over Ferrite magnetic alloy coating delivers ultra low resistance and excellent interference protection
  • CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
See More

Beck/Arnley – Premium Ignition Wire Set (Part No.175-6124)

Premium Ignition Wire Set

from

$39.49
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:
  • Matches OE form, fit and function
  • Terminals are factory crimped for extra pull strength and reliable connections
  • High quality construction for durability
  • Designed for underhood conditions
  • Application specific for this vehicle
See More

NGK – Ignition Wire Set (Part No.F1020309079NGK)

Ignition Wire Set

from

$80.27
NGK Resistor Spark Plug Wire Sets utilize a construction method known as variable pitch wire winding to create resistance to radio frequency interference. The variable pitch winding (loose/tight/loose) provides suppression throughout a very wide range by scrambling and breaking up the electrical waves radiated by the firing of the spark plugs. A ferrite magnetic layer consisting of a mixture of rubber, plastic and powdered ferrite magnetic materials, offers uniform resistance and unsurpassed conductivity. NGK wires have a lower resistance than conventional carbon core wires (8k ohm/meter versus 16k ohm/meter). This comparison is important to remember when you consider that many manufacturers recommend wires be replaced when the resistance exceeds 20k ohm/meter. This does not leave much margin for wear when the wire may only meet original standards at the very early stages of its life.

Product Features:
  • OE-Equivalent.
  • OEM style connectors for easy Installation.
  • Superior Firing and Fuel Savings
  • Outstanding Durability and Performance
  • Excellent Noise Suppression
  • Numbered for easy cylinder identification.
  • High quality EPDM and Silicone coverings.
See More

DENSO – Spark Plug Wire Set: Carbon Core, 4 Wire Set (Part No.671-4305)

Spark Plug Wire Set: Carbon Core, 4 Wire Set

from

$94.99
DENSO First Time Fit Ignition Wire Sets are identical in form fit color and performance to the factory-installed wire sets. Every part of each wire sets construction meets or exceeds OE/OES standards.

Product Features:
  • Each wire is pre-cut to exact length so the wire set is ready to install right out of the box
  • Identical OE end caps are designed to “click” into place for easy installation and a secure fit
  • Strong connections – through a patented process, the terminals are attached to provide an extremely strong connection, ensuring the cable and boot will not separate during removal and installation
See More

NGK – Ignition Wire Set (Part No.F1020268445NGK)

Ignition Wire Set

from

$70.83
NGK Resistor Spark Plug Wire Sets utilize a construction method known as variable pitch wire winding to create resistance to radio frequency interference. The variable pitch winding (loose/tight/loose) provides suppression throughout a very wide range by scrambling and breaking up the electrical waves radiated by the firing of the spark plugs. A ferrite magnetic layer consisting of a mixture of rubber, plastic and powdered ferrite magnetic materials, offers uniform resistance and unsurpassed conductivity. NGK wires have a lower resistance than conventional carbon core wires (8k ohm/meter versus 16k ohm/meter). This comparison is important to remember when you consider that many manufacturers recommend wires be replaced when the resistance exceeds 20k ohm/meter. This does not leave much margin for wear when the wire may only meet original standards at the very early stages of its life.

Product Features:
  • OE-Equivalent.
  • OEM style connectors for easy Installation.
  • Superior Firing and Fuel Savings
  • Outstanding Durability and Performance
  • Excellent Noise Suppression
  • Numbered for easy cylinder identification.
  • High quality EPDM and Silicone coverings.
See More

NGK – Spark Plug Wire Set (Part No.8691)

Spark Plug Wire Set

from

$71.99
NGK variable pitch resistor cables provide uniform resistance and ensure outstanding electrical conductivity in high-quality cables. Outer EPDM/silicone jacket and inner insulation contain high voltage currents for excellent dielectric strength. NGK varia

Product Features:
  • PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
  • BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
  • STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
  • PREMIUM ALLOY WINDING: Variable pitch winding over Ferrite magnetic alloy coating delivers ultra low resistance and excellent interference protection
  • CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
See More

Prenco – Prenco Direct Ignition Coil Boot (Part No.F3006376169PRN)

Prenco Direct Ignition Coil Boot

from

$18.52
Prenco Coil on Plug Boots provide the best protection possible for your ignition system versus the harsh environment created by the modem day engine. Prenco Coil on Plug Boots are constructed using the finest quality materials and compounds, and produced with superior quality tooling that exactly matches the Original Equipment Boot.

Product Features:
  • Prenco Coil on Plug Boots are produced using precise computer designed tooling and premium quality materials/compounds that are formulated to perform in extreme temperatures.
  • Prenco Coil on Plug Boots are designed as a direct replacement for the OE Boot. Springs, grommets and ferrite resistors are provided for all applications where applicable.
  • Inspect and replace Coil on Plug Boots every 50,000 miles and/or with every spark plug change to ensure optimum engine efficiency and performance.
  • Replacing Coil and Plug Boots at regular intervals will prevent/correct misfires and will help to minimize further costly damage to Ignition Coils, Sensors, Catalytic Convertors, and ECUs.
See More

2003 Subaru Impreza Ignition Coils and Boots

Maybe you’re in the middle of a full rebuild of that 2003 Subaru Impreza. Maybe you just need a couple of Ignition Coils and Boots. Either way, Advance Auto Parts has 14 different Ignition Coils and Boots in our inventory ranging from $18.52 to $178.99. That means you can find the exact parts or products you need to keep that 2003 Subaru Impreza running smoothly.

Ignition Coils and Boots are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 2003 Subaru Impreza. Carquest Premium, Dorman, and NGK are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Ignition Coils and Boots for your 2003 Subaru Impreza, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Ignition Coils and Boots to keep your 2003 Subaru Impreza rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Ignition Coils and Boots Brands To Make Your 2003 Subaru Impreza Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 Subaru Impreza demands trusted brand parts and products to keep it running. Many trusted brands of Ignition Coils and Boots make up Advance Auto Parts’ inventory, and all are ready to help make your Impreza the best it can be. Be sure to browse some of our top Ignition Coils and Boots brands and parts.

Popular NGK Ignition Coils and Boots

We carry NGK parts in our stock across Ignition Coil Boots categories, plus more. For a 2003 Subaru Impreza, our most popular NGK Ignition Coils and Boots include:
Spark Plug Wire Set
from $71.99
(20)
Spark Plug Wire Set
Ignition Coil Boots

FAQs for 2003 Subaru Impreza Ignition Coils and Boots

What are the most purchased Ignition Coils and Boots for the 2003 Subaru Impreza?

Out of 14 Ignition Coils and Boots for the 2003 Subaru Impreza, the most popular in our inventory are:
Ignition Coil: Meets or Exceeds OE Specifications, 1 Count
from $108.99
This product is not rated
Ignition Coil: Meets or Exceeds OE Specifications, 1 Count
Ignition Coils
Ignition Coil Connector
from $28.99
(1)
Ignition Coil Connector
Ignition Coil Connectors
Ignition Coil: Meets or Exceeds OE Specifications, 1 Count
from $69.99
This product is not rated
Ignition Coil: Meets or Exceeds OE Specifications, 1 Count
Ignition Coils