Ignition System Parts & Components

Ignition

Featured Brands

  • TRQ® - Ignition Kit
    TRQ®Ignition Kit
    1
    # sp240437
    Ignition Kit by TRQ®. If you want to keep your vehicle running like new, this high-quality product will help you fix the ignition-related problems. Made from durable materials and in compliance with strict industry standards, it fits...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $35.95 - $332.95Save: up to 6%
    $34.15 - $312.97
  • NGK® - Laser Iridium™ Spark Plug
    NGK®Laser Iridium™ Spark Plug
    19
    # sp5197
    Laser Iridium™ Spark Plug by NGK®. NGK manufactures all types of spark plugs and glow plugs featuring the latest in technology. Manufactured with both laser welded Iridium center electrode tip and a platinum disc welded to the...
    Laser welded Iridium center electrode tipPlatinum disc welded to backside of ground electrode provides long life
    $7.71 - $20.66
  • Denso® - Iridium TT™ Spark Plug
    Denso®Iridium TT™ Spark Plug
    2
    # sp102365
    Iridium TT™ Spark Plug by Denso®. Is your vehicle hard to start? Does it miss under load and idle rough? Is your gas mileage not what it used to be? Your ignition system may need repair, but before you waste your time and gas running...
    Designed to replace your factory spark plugsManufactured to stringent quality standards
    $6.73 - $14.99
  • NGK® - Ignition Coil
    NGK®Ignition Coil
    7
    # sp204224
    Ignition Coil by NGK®. In our online store you can get this superior replacement product and take advantage of its impeccable design. Carefully engineered to OE specifications, it exactly replicates the factory part in look, fit, and...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $10.63 - $1,131.50
  • SKP® - Ignition Coil
    SKP®Ignition Coil
    0
    # sp228120
    Ignition Coil by SKP®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $7.50 - $118.72
  • ACDelco® - GM Original Equipment™ Iridium Spark Plug
    ACDelco®GM Original Equipment™ Iridium Spark Plug
    3
    # sp217451
    GM Original Equipment™ Iridium Spark Plug by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $8.82 - $23.31
  • Denso® - Ignition Coil
    Denso®Ignition Coil
    9
    # sp205555
    Ignition Coil by Denso®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better...
    Manufactured from premium materialsDesigned to provide years of reliable service
    $19.68 - $151.24
  • TRQ® - Distributor
    TRQ®Distributor
    0
    # sp240433
    Distributor by TRQ®. Restore your ignition system with this great product. Designed and manufactured to meet or exceed the OEM standards, this ignition distributor delivers trouble-free and long-lasting performance. Plus, it's priced to...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $66.95 - $179.95Save: up to 6%
    $63.60 - $172.75
  • NGK® - HX™ Ruthenium Spark Plug
    NGK®HX™ Ruthenium Spark Plug
    6
    # sp186636
    HX™ Ruthenium Spark Plug by NGK®. NGK Spark Plugs is introducing the latest technology in high ignitability spark plugs to the automotive aftermarket NGK Ruthenium HX™. The ultimate high ignitability spark plugs from NGK. Modern...
    DFE & PSPE™ tip designsSuperior oxidation resistance
    $10.85 - $11.40
  • TRQ® - Ignition Coil Set
    TRQ®Ignition Coil Set
    10
    # sp240435
    Ignition Coil Set by TRQ®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $18.95 - $562.95Save: up to 7%
    $18.00 - $529.17
  • Delphi® - Ignition Coil
    Delphi®Ignition Coil
    3
    # sp190667
    Ignition Coil by Delphi®. Delphi OE technology ignition products are validated to match the vehicles system. OE quality replacement parts for the right fit, form and function. Designed utilizing the latest technology, this product by...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $17.06 - $522.73
  • ACDelco® - Professional™ Spark Plug Wire Set
    ACDelco®Professional™ Spark Plug Wire Set
    4
    # sp14260
    Professional™ Spark Plug Wire Set by ACDelco®. Built to match the Original Equipment in length and fit, ACDelco Professional Ignition Wire Sets also offer a performance advantage over many aftermarket products.
    Wire conductor, wire length and diameter help provide maximum spark delivery and protectionSpark plug distributor boot shape and materials provide proper fit, installation and water-tight seal
    $13.14 - $993.05
  • Denso® - Iridium Long-Life™ Spark Plug
    Denso®Iridium Long-Life™ Spark Plug
    5
    # sp94893
    Iridium Long-Life™ Spark Plug by Denso®. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to be shrunk to only 0.7 mm in diameter. This produces a dramatic improvement in ignitability...
    Manufactured to boost your engine’s performanceEngineered utilizing the finest materials and equipment
    $6.57 - $16.68
  • Autolite® - Platinum Spark Plugs
    Autolite®Platinum Spark Plugs
    1
    # sp219571
    Platinum Spark Plugs by Autolite®. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking design, this product guarantees to deliver...
    Wise investment to get an efficient ignition system upgradeWill provide improved ignitability and engine performance
    $1.67 - $8.00
  • WAI Global® - Ignition Distributor
    WAI Global®Ignition Distributor
    5
    # sp13166
    Ignition Distributor by WAI Global®. If your vehicle's ignition distributor wore out, WAI has you covered with the right part for your replacement needs. Precisely designed, this premium product provides the same quality, fit and...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $43.41 - $721.97
  • TRQ® - Spark Plug Set
    TRQ®Spark Plug Set
    8
    # sp244102
    Spark Plug Set by TRQ®. This top-notch TRQ spark plug set is made to fix spark plug problems easily. With its help, you will restore your vehicle's quick starting. Plus, installing it is a simple task.
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $30.95 - $103.95Save: up to 6%
    $29.09 - $98.75
  • Bosch® - Ignition Coil
    Bosch®Ignition Coil
    6
    # sp203083
    Ignition Coil by Bosch®. An ignition coil is located in a vehicle’s ignition system in order to convert a car battery’s low voltage to create an electric spark in the spark plugs and ignite the fuel. All Bosch ignition coils are...
    Meets or exceeds OEM specificationExcellent mechanical stability and corrosion protection
    $21.14 - $294.11
  • NGK® - Iridium IX™ Spark Plug
    NGK®Iridium IX™ Spark Plug
    4
    # sp5201
    Iridium IX™ Spark Plug by NGK®. NGK manufactures all types of spark plugs and glow plugs featuring the latest in technology. Designed for performance enthusiasts who want extreme ignitability, improved throttle response and superior...
    Fine Iridium tip ensures high durability and a consistently stable sparkIridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
    $6.47 - $8.51
  • Denso® - Spark Plug Wire Set
    Denso®Spark Plug Wire Set
    3
    # sp123085
    Spark Plug Wire Set by Denso®. Designed with precision and functionality in mind this product ensures ultimate durability and provides the highest level of quality. This product is manufactured from first-rate materials according to...
    Improved coil efficiency reduces the need to generate high voltageDriving circuit is integrated into top of coil
    $16.22 - $319.40
  • Cardone Reman® - Distributor
    Cardone Reman®Distributor
    2
    # sp167701
    Distributor by Cardone Reman®. Cardone Remanufactured Distributors provide reliable performance at the best price. Installing an Cardone Reman Distributor on your vehicle will ensure that proper voltage is transmitted to the spark plugs...
    50-state emissions street legalThe finest quality at a great price
    $49.79 - $438.77
  • Standard® - Pro Series™ Spark Plug Wire Set
    Standard®Pro Series™ Spark Plug Wire Set
    5
    # sp8959
    Pro Series™ Spark Plug Wire Set by Standard®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $7.97 - $608.21
  • TRQ® - Ignition Coil
    TRQ®Ignition Coil
    0
    # sp240434
    Ignition Coil by TRQ®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even better...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $11.95 - $281.95Save: up to 6%
    $11.47 - $265.03
  • ACDelco® - GM Original Equipment™ Ignition Coil
    ACDelco®GM Original Equipment™ Ignition Coil
    3
    # sp203072
    GM Original Equipment™ Ignition Coil by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $24.32 - $276.03
  • Spectra Premium® - Ignition Coil
    Spectra Premium®Ignition Coil
    12
    # sp190677
    Ignition Coil by Spectra Premium®. Spectra Premium ignition coils are designed and produced under a strict TS16949 quality control process. Carefully engineered to OE specifications, it exactly replicates the factory part in look, fit,...
    All ignition coils are durability tested at 100 cycles of thermal shock (-50 to 300° F), to ensure reliability from extreme vibration24 hours salt spray test ensures sensors provide high corrosion resistance
    $11.30 - $293.03
  • NGK® - Laser Platinum™ Spark Plug
    NGK®Laser Platinum™ Spark Plug
    10
    # sp5198
    Laser Platinum™ Spark Plug by NGK®. NGK manufactures all types of spark plugs and glow plugs featuring the latest in technology. Laser Iridium™ spark plugs provide superior ignitability and long service life. Smallest tip diameter...
    Laser welded Platinum center electrode tipPlatinum disc welded to backside of ground electrode provides long life
    $4.73 - $16.37
  • Denso® - Iridium Power™ Spark Plug
    Denso®Iridium Power™ Spark Plug
    4
    # sp219573
    Iridium Power™ Spark Plug by Denso®. Iridium Power™ best demonstrates its performance improvement during acceleration. The world's smallest center electrode and specially shaped ground electrode delivers maximum spark energy while...
    OE quality parts from top original equipment and aftermarket manufacturerThe finest quality at a great price
    $6.31 - $39.41
  • Motorcraft® - Ignition Coil
    Motorcraft®Ignition Coil
    5
    # sp207019
    Ignition Coil by Motorcraft®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the same or even...
    Engineered to withstand temperature extremes.Internal insulation displacement connection is designed to make high-reliability internal connections.
    $36.33 - $370.65
  • Champion® - Copper Plus Spark Plug
    Champion®Copper Plus Spark Plug
    0
    # sp205164
    Copper Plus Spark Plug by Champion®. Built with nickel alloy center and ground electrodes, these spark plugs provide extra durability for long-lasting service life, while the extrusion of copper into the core of their center electrode...
    Dependable and durableBuilt to ISO and SAE standards for proven performance
    $1.23 - $33.55
  • NGK® - G-Power™ Spark Plug
    NGK®G-Power™ Spark Plug
    4
    # sp5200
    G-Power™ Spark Plug by NGK®. These spark plugs by NGK are designed to improve fuel efficiency, lower emissions, and provide quicker starts while remaining durable under high heat. With their 0.6 mm platinum alloy tip laser welded to...
    Fine platinum tip reduces required voltageExtremely durable under high heat
    $2.63 - $5.74
  • Denso® - Original U-Groove Spark Plug
    Denso®Original U-Groove Spark Plug
    1
    # sp94899
    Original U-Groove Spark Plug by Denso®. Denso's patented U-Groove spark plug enables complete combustion by allowing the spark to fill the gap created by the U shape. The ball of fire created in the U-Groove develops a larger and hotter...
    Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind
    $1.67 - $6.28




A well-maintained ignition system ensures that the engine starts effortlessly, performs properly, and provides an optimal output and fuel economy. The system's main task is to generate a potent spark that fires up the fuel-air mix within the combustion chambers, always at the right moment. Whether you're in search of high-quality replacements to keep this system in top condition or performance ignition parts to get the most out of your engine build, our store is your one-stop solution. We provide a comprehensive selection tailored to your needs and sourced from trusted names in the aftermarket and OEM industry. Our commitment is to help your vehicle perform at its best, ensuring a smooth, efficient drive every time you get behind the wheel.

Ignition Parts: Sparking Life into Your Engine

The spark generation process happens hundreds or even thousands of times a minute depending on the RPM. This ideally-balanced act is managed by various components which work together to ensure the most efficient combustion.

  • Ignition switch. This is where it all begins. This part activates the electrical systems required to start your car or truck; when failing, it might cause intermittent starting problems or electrical system troubles. If you're experiencing this issue, we have your ignition switch replacement needs covered.
  • Spark plugs. Their role is to fire up the blend of gasoline and oxygen. The high voltage sent to each plug induces a spark to jump the gap between the center electrode and the ground electrode(s). Every time it happens, the electrode is slightly eroded, eventually widening the air gap and dictating the need for spark plug replacement.
  • Ignition coil. This is where the magic of induction happens, which means low voltage power is transformed into high voltage power. This component takes 12V from the battery and turns it into 15,000V to 40,000V necessary to fire the plugs. The lifespan of a coil is generally about 100,000 miles. When an ignition coil goes bad due to heat, vibration, or voltage overload stemming from bad spark plugs, the outcome is spark weakening or no spark at all. Symptoms may include difficulty starting, poor gas mileage, misfire, reduced power and fuel efficiency, and a check engine light. If only one coil is faulty, it's generally okay to replace just the faulty one. However, if your vehicle has accumulated a substantial amount of miles and one coil has failed, others might fail soon.
  • Distributor. Used primarily in older vehicles, this part is in charge of directing the energy from the coil to the appropriate plug at the exact right time.
  • Spark Plug Wires. Also known as ignition wires, they serve as the highway for voltage, carrying it from the coil to the plugs. The quality and durability of these wires are of critical importance, as they need to deliver high voltage without electrical losses in harsh conditions involving extreme heat and abrasion.
  • Ignition control module. This little box regulates the coil's operation in late-model vehicles, ensuring the timing and strength of the spark is correct. Heat is the most likely cause of failure. In some cases, a voltage overload can also be the culprit. A failing module can be the reason behind a variety of troubles, ranging from stalling to a no-start.

Maintaining your car's ignition system in optimal health is essential. No matter which of its components is giving you trouble, we have reliable, durable, yet reasonably-priced replacements. Our vast selection of replacement parts is sourced from brand names you know and trust. These are original equipment suppliers and aftermarket companies that go the extra mile to ensure their products meet or exceed OEM standards. We bring the showroom experience back to your daily drive, at a fair price.

Primary and Secondary Ignition Components

The primary circuit includes parts that handle low voltage operations, such as the battery, an ignition switch, the coil's primary winding, and the contact breaker points in older cars or the ignition module in modern setups. Secondary components operate with high voltage: these are the coil's secondary winding, spark plugs, and depending on the setup, a distributor and/or ignition wires. All of the secondary parts are maintenance items and demand extra attention if your hauler is subjected to intensive usage, like in racing scenarios.

What Are the 3 Types of Ignition Systems?

Throughout the evolution of automotive technology, three main system designs have been established: those relying on a distributor, distributorless setups, or the coil-on-plug variety.

Mechanical Breaker-Point & Electronic Distributor-Based System

Commonly found in vintage vehicles, the breaker point ignition system was the norm until the ‘70s. It controls timing mechanically by means of a distributor guided by a rotating camshaft. The distributor shaft's movement triggers the closure of the contact breaker points, subsequently disrupting the current transmitted to a single coil energizing the entire engine. The system requires frequent maintenance, nearly once in 12,000 miles, due to the wear of contact points. Despite its drawbacks, this setup still has a dedicated following among vintage car enthusiasts who appreciate its simplicity and traditional operation.

Transitioning from a mechanical to electronic distributor was a marked step forward. Replacing the wear-prone breaker points with a pickup coil lowered maintenance demands. The introduction of a transistor in the module also meant the primary circuit could open and close faster, making the system more responsive. Additionally, this design offers higher capacity, ensuring an increased voltage supply to the plugs.

This meant stronger sparks and better combustion. Yet, distributor caps and rotors were still prone to wear over time, needing replacement.

Distributorless System

The drive for efficiency and dependability brought the distributorless ignition system (DIS) into play. The elimination of a distributor with its moving parts lessens the possibility of mechanical failure and extends service intervals.

Early variations of this type of ignition system received a Wasted Spark name as "one plug will be sparking during the end of the exhaust stroke while the other fires at the usual time, a so-called "wasted spark" arrangement which has no drawbacks apart from faster spark plug erosion."

The DIS relies on ignition coil packs, with each coil catering to two cylinders. Precise timing is managed by the car's computer, using data collected from the crankshaft position sensor and camshaft position sensor. The DIS setup, though delivering improved performance and efficiency, can be costly to repair due to its complex nature.

Coil-On-Plug System

The latest innovation is the Coil-On-Plug (COP) setup, a staple in all modern vehicles. Each spark plug has a coil sitting on it. The elimination of wires mitigates the risk of electrical losses. With COP systems, because each cylinder has its own coil, the coil has more time to build up a magnetic field between sparks. This can result in greater energy output, further improving combustion efficiency. However, the COP can be pricier to repair due to the higher cost of individual coils.

Ignition systems have significantly evolved over time, now generating higher voltage and offering more accurate timing than their mechanical counterparts used in older cars. This progress results in a stronger spark for complete combustion. Today's setups are more dependable than their predecessors, however, they still aren't impervious to wear and breakdown. No matter what setup your make and model features, we have all your ignition system components needs.

Revving Up Performance: Ignition System Upgrades

A gasoline engine relies on three core ingredients: fuel, air, and a spark. There is no denying that much of the allure of car modification lies in enhancing the supply of oxygen and fuel. Cold air intakes, performance turbos, fuel injection upgrades, and the like are all the rage, but without a powerful spark to ignite the blend, all these trendy mods amount to nothing.

High-performance ignitions provide the perfectly-timed, potent spark for the air-fuel blend to burn completely and maximize power gains. Regardless of the type of car ignition, we have the right components for the overhaul you're planning.

  • Enhanced ignition coils provide higher energy output than their standard counterparts, capable of producing 50,000 volts or even more, even at high RPM. A stronger spark allows for more effective combustion, better throttle response, and smoother idle.
  • Performance spark plugs are constructed to withstand greater heat and pressure and have air gap and electrode features that enhance combustion, boosting your engine's efficiency and power delivery.
  • Performance spark plug wires reduce electrical resistance, ensuring more voltage gets to the spark plugs while providing longer spark duration. They are created to endure extreme environments associated with high temps.
  • Aftermarket ignition control modules (ICM) deliver more precise timing, which translates to better engine response. Browse our CDI systems, which deliver multiple sparks at low RPM, contributing to higher combustion efficiency. At high RPM, it rapidly discharges a capacitor through the coil, igniting the spark plugs at a speed much quicker than the coil's usual charging and firing rate.
  • High-Performance Distributors (for older vehicles) offer more accurate timing and feature more durable, more reliable components than stock. They boast self-lubricating bushings, high-strength yet lightweight housings manufactured from billet aluminum, and corrosion-resistant brass condenser casings. Some of our models are even designed with either preprogrammed or customizable advance curves for tailored timing.

Ignition Reviews

710 reviews  /  Read all Ignition Reviews
These plugs are great for the cheaper side of plugs for a 5.7. However, buyer beware that you’ll need to purchase a spark plug gapping tool before you install these into your engine. All the spark plugs I received were anywhere from .032 to .041. The gap for a 5.7 Challenger is .045. So you’ll have to gap your plugs. Easy fix, just takes time. TRQ has great, lasting products but for something this small on a metric scale, I expected them to be a little off.
Posted by Connor (Delaware, OH) / May 27, 20232015 Dodge Challenger
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