2003 Cadillac CTS Ignition Coils and Boots

Essential 2003 Cadillac CTS Ignition Coils and Boots

NGK – NGK Wire Set (Part No.51440)

NGK Wire Set

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$75.99
NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding

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
  • CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
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NGK – Coil on Plug Boot (Part No.58985)

Coil on Plug Boot

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$7.49
NGK Coil on Plug Boots are built to stringent OEM tolerances, combining original equipment fit, design and outstanding durability. NGK Coil on Plug Boots are manufactured using only premium silicone and always include any required internal springs and ferrite resistors for superior performance and RFI noise suppression. Bridging the important link between ignition coil and spark plug, COP boots should always be replaced with NGK Coil on Plug Boots at the time as changing spark plugs to prevent ignition problems such as flashover.

Product Features:
  • PREMIUM GRADE SILICONE: Designed to withstand harsh environments
  • OEM MATCHED: Includes all required internal springs and ferrite resistors for superior performance and RFI noise suppression
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ACDelco – Coil on Spark Plug Boot (Part No.16116)

Coil on Spark Plug Boot

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$13.49
ACDelco Professional Direct Ignition Coil Boots serve as the electrical connection between the coil and the spark plug. They act as insulators, helping keep moisture and contaminants out of the connection, and are a high quality replacement for many vehicles on the road today. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.

Product Features:
  • Weather tight boot seal helps protect from moisture intrusion
  • High temperature resistant silicone helps protect against thermal overload
  • Stainless steel internal spring with resistor suppresses RFI and helps deliver maximum voltage to the spark plug
  • Provides the performance and dependability you expect from ACDelco
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Carquest Premium – Spark Plug Wire Set (Part No.35-8346)

Spark Plug Wire Set

from

$83.99
CARQUEST Premium Spark Plug Wire Sets are engineered to restore ignition wire reliability and performance. They are designed to meet or exceed OE design requirements, performance, fit, form and function of the OE wire. Stainless steel magnetic winding del

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
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Autopart International Inc – Ignition Wire Set (Part No.F10202008591API)

Ignition Wire Set

from

$82.64
Ignition Wire Set

DENSO – Spark Plug Wire Set: Carbon Core, 8 Wire Set (Part No.671-8162)

Spark Plug Wire Set: Carbon Core, 8 Wire Set

from

$86.99
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
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NGK – Coil on Plug Boot (Part No.58983)

Coil on Plug Boot

from

$9.79
NGK Coil on Plug Boots are built to stringent OEM tolerances, combining original equipment fit, design and outstanding durability. NGK Coil on Plug Boots are manufactured using only premium silicone and always include any required internal springs and ferrite resistors for superior performance and RFI noise suppression. Bridging the important link between ignition coil and spark plug, COP boots should always be replaced with NGK Coil on Plug Boots at the time as changing spark plugs to prevent ignition problems such as flashover.

Product Features:
  • PREMIUM GRADE SILICONE: Designed to withstand harsh environments
  • OEM MATCHED: Includes all required internal springs and ferrite resistors for superior performance and RFI noise suppression
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Carquest Premium – Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit (Part No.35-8158)

Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit

from

$73.99
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
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ACDelco – Professional Ignition Wire Set (Part No.F1020575905ACD)

Professional Ignition Wire Set

from

$82.98
Built to match the Original Equipment in length and fit, ACDelco Professional Ignition Wire Sets also offer a performance advantage over many aftermarket products.

Product Features:
  • Designed to match Original Equipment wire sets in critical areas such as cable length and diameter, terminal design and insulator position.
  • Have broad coverage available for most vehicles on the road today from 1980 to present.
  • Provide a high degree of Radio Frequency Interference (RFI) suppression.
  • Are designed to offer fit, form and function for optimum performance.
  • Kevlar®-reinforced fiberglass core in select sets for increased strength.
  • Core sheathed in radio-static-absorbent material for increased RFI suppression.
  • Wire-wound, stainless-steel alloy conductor for maximum spark delivery and RFI suppression on most applications.
  • A layer of conductive heat-resistant latex for added durability.
  • Insulating rubber-based compound inner jacket helps minimize voltage drop and enhance durability.
  • Thick silicone outer jacket for excellent heat resistance.
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ACDelco – Ignition Coil (Part No.D580)

Ignition Coil

from

$61.99
An ACDelco GM Original Equipment Ignition Coil is a GM-recommended replacement for your vehicle’s original component, and undergoes more stringent testing than aftermarket products. It increases electrical system voltage to help ignite the air/fuel mixture as the starting and charging system starts the engine, maintains the battery’s charge, and provides power to the electrical accessories while the engine is running. An ACDelco GM OE Ignition Coil uses pure copper windings to improve durability and provide higher resistance to internal shorts and dielectric breakdown. Because the number and shape of the laminations determine the output characteristics of an ignition coil, ACDelco ensures that the silicone steel plates surrounding the coil correctly match the original part size and number. Since steel laminations work best when they are new, shiny, and clean, ACDelco laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed. This original equipment ignition coil has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • High quality coated windings to improve durability and provide protection against internal shorts and dielectric breakdown
  • Silicone steel plates surrounding the ignition coil correctly match the original part size and number exactly
  • Laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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ACDelco – Original Equipment Direct Ignition Coil (Part No.F3005386155ACD)

Original Equipment Direct Ignition Coil

from

$124.45
The ACDelco Direct Ignition Coil is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces. To protect coils from the harsh operating environment, laminations are corrosion protected, and primary and secondary coil windings often feature molded plastic protection. These laminations are similar to the OE part.

Product Features:
  • OES and a direct fit application
  • Meets or exceeds the OES specifications for durability and performance
  • High profile insulation to prevent arching
  • Radio-Frequency Interference (RFI) Suppression
  • Engineered to withstand extremes in temperatures
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Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1368)

Ignition Coil: Meets or Exceeds OE Specifications, 1 Count

from

$51.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Built by IATF 16949 certified manufacturers for consistent durability
  • Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
  • Segmented secondary bobbins to distribute high voltage and prevent shorting
  • Extensive design validation testing to ensure long-lasting reliability
  • 100% end-of-line tested to ensure proper performance
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
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Delphi – Ignition Coil (Part No.GN10374)

Ignition Coil

from

$95.99
Delphi OE technology ignition products are validated to match the vehicles system; OE quality replacement parts for the right fit , form and function; Delphi coils provide OE performance, durability and electromagnetic capacity level requirements.

Product Features:
  • Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
  • Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
  • Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
  • We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues
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Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBA1147)

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

from

$77.99
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.
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ACDelco – Ignition Coil (Part No.D514A)

Ignition Coil

from

$104.99
An ACDelco GM Original Equipment Ignition Coil is a GM-recommended replacement for your vehicle’s original component, and undergoes more stringent testing than aftermarket products. It increases electrical system voltage to help ignite the air/fuel mixture as the starting and charging system starts the engine, maintains the battery’s charge, and provides power to the electrical accessories while the engine is running. An ACDelco GM OE Ignition Coil uses pure copper windings to improve durability and provide higher resistance to internal shorts and dielectric breakdown. Because the number and shape of the laminations determine the output characteristics of an ignition coil, ACDelco ensures that the silicone steel plates surrounding the coil correctly match the original part size and number. Since steel laminations work best when they are new, shiny, and clean, ACDelco laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed. This original equipment ignition coil has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • High quality coated windings to improve durability and provide protection against internal shorts and dielectric breakdown
  • Silicone steel plates surrounding the ignition coil correctly match the original part size and number exactly
  • Laminations are coated to hinder corrosion and many feature molded plastic protection to help ensure that nothing is exposed
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
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Driveworks – Distributorless Coil (Part No.26434)

Distributorless Coil

from

$56.05
Driveworks® offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.

Product Features:
  • Direct-fit OE replacement ensures ease of installation
  • Designed to meet OE performance
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
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WSO – Direct Ignition Coil – (Coil on Plug) (Part No.F3005402886WSO)

Direct Ignition Coil - (Coil on Plug)

from

$65.64
Every WSO ignition coil is developed and designed for its specific application, and engineered for maximum performance. 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. WSO Direct Ignition Coils are designed to adapt the required energy output to match engine-operating conditions and deliver the optimum energy level needed to ignite a diluted stratified charge.

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
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Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1787)

Ignition Coil: Meets or Exceeds OE Specifications, 1 Count

from

$56.99
Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Built by IATF 16949 certified manufacturers for consistent durability
  • Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
  • Segmented secondary bobbins to distribute high voltage and prevent shorting
  • Extensive design validation testing to ensure long-lasting reliability
  • 100% end-of-line tested to ensure proper performance
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
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DENSO – Coil On Plug Boots-6 (Part No.671-6307)

Coil On Plug Boots-6

from

$66.99
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
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DENSO – Coil On Plug Boots-6 (Part No.671-6301)

Coil On Plug Boots-6

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
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DENSO – Coil On Plug Boots-6 (Part No.671-6292)

Coil On Plug Boots-6

from

$133.99
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
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2003 Cadillac CTS Ignition Coils and Boots

Maybe you’re in the middle of a full rebuild of that 2003 Cadillac CTS. Maybe you just need a couple of Ignition Coils and Boots. Either way, Advance Auto Parts has 11 different Ignition Coils and Boots in our inventory ranging from $7.49 to $133.99. That means you can find the exact parts or products you need to keep that 2003 Cadillac CTS running smoothly.

Ignition Coils and Boots are only as good as their brand. We stock 7 different brands to make sure you have plenty of trusted parts to choose from for your 2003 Cadillac CTS. Carquest Premium, Carquest, and Delphi 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 Cadillac CTS, 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 Cadillac CTS 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 Cadillac CTS Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 Cadillac CTS 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 CTS the best it can be. Be sure to browse some of our top Ignition Coils and Boots brands and parts.

Popular Carquest Ignition Coils and Boots

We carry Carquest parts in our stock across Ignition Coils categories, plus more. For a 2003 Cadillac CTS, our most popular Carquest Ignition Coils and Boots include:
Ignition Coil
from $108.99
(3)
Ignition Coil
Ignition Coils

FAQs for 2003 Cadillac CTS Ignition Coils and Boots

What are the most purchased Ignition Coils and Boots for the 2003 Cadillac CTS?

Out of 11 Ignition Coils and Boots for the 2003 Cadillac CTS, the most popular in our inventory are:
Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece
from $97.99
This product is not rated
Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece
Ignition Coils
Ignition Coil: Meets or Exceeds OE Specifications, 1 Count
from $92.99
This product is not rated
Ignition Coil: Meets or Exceeds OE Specifications, 1 Count
Ignition Coils
IGNITION COIL
from $122.99
This product is not rated
IGNITION COIL
Ignition Coils