• NAPA® Echlin® offers more than 800 coils for 99% aftermarket-leading coverage
  • Every NAPA® Echlin® coil is subjected to extensive testing & product validation
  • NAPA® Echlin® heavier-duty coils beat the OE with more spark energy & longer lasting discharge for improved performance

Download Product Information

Because we’re an expert coil manufacturer, you know
what to expect every time you open our box.
Not every supplier can say the same.


Ignition coils are manufactured at NAPA® Echlin® Poland, an IATF 16949-certified design, engineering, and manufacturing center. We produce over 6 million coils and release 110+ new products each year.

View NAPA Echlin Ignition Coil Brochure

Superior Coil Engineering

Superior Coil Engineering

Many suppliers are just product importers. That’s not who we are. It’s not enough to lead the market with 99% coverage, as an expert manufacturer, here’s our process. We study the OE platform coils to identify weak points in original coil designs that lead to failure, then we engineer improvements to produce a more reliable coil.

Ignition Coil Testing

Our ignition coils undergo a full regimen of measurement and life tests, plus environmental analysis that includes thermal shocks, thermal cycling and vibration tests. You can install NAPA® Echlin® ignition coils with confidence, knowing they meet and often exceed the performance and durability of the original.

Ignition Coil Testing

NAPA® Echlin® Outperforms the OE

Testing Takeaways

Test 1: NAPA® Echlin® coils outperform the OE and OE aftermarket coils with more spark energy and longer lasting discharge to deliver improved performance and fuel economy.

Test 2: The OE coils short-circuited and never completed Stage 1.
NAPA® Echlin® coils passed 100 thermal cycles, a 24-hour life test, and 10 thermal shocks, producing more energy and higher secondary voltage for exceptional performance and durability.

We Pay Attention to the Details

  • intro-longpng-1

    Engineered and tested to match or exceed OE for spark energy output, impedance, and durability

  • boot-spring-assembly-longpng

    Boot & Spring Assembly

    High-temp book prevents high-voltage leaks while stainless steel spring with internal ferrite noise suppressor prevents RFI

  • core-longpng-1


    Internal neodymium permanent magnet maximizes high-voltage output at all speeds

  • coil-housing-longpng

    Coil Housing

    High-impact material bonds to epoxy to ensure a longer service life

  • coil-connector-longpng

    Coil Connector

    Advanced thermoplastics ensure proper connection and resist heat fractures

  • isolator-longpng-1


    High-voltage resistant thermoplastics prevent premature failure

  • bobbins-longpng

    Primary & Secondary Bobbins with Winding

    Copper wound wire ensures high-voltage for peak performance while high dielectric strength bobbins prevent voltage flashover

Heavier Duty Ignition Coils

NAPA® Echlin® heavier-duty ignition coils are the product of superior design, manufacturing, and testing. For example, look at the features of our premium IC414 coil, and how it improves on the original.

  • heavydutycoil-1png

    Advanced thermoplastic coil connector ensures proper connection and resists fractures caused by heat and thermal cycling

  • heavydutycoil-2png

    Primary (23 gauge) and Secondary (43 gauge) copper wire ensure high-voltage availability for peak performance while reinforced bobbins prevent voltage flashover for extended service life

  • heavydutycoil-3png

    High-impact housing material ensures superior bond to epoxy for longer life in all operating conditions

  • heavydutycoil-4png

    Internal, neodymium permanent magnet core surrounded by grain-oriented, magnetic-laminated steel maximizes high-voltage output at all engine RPMs and loads

  • heavydutycoil-5png

    Tested at extreme engine performance condition at 7200 RPM

  • heavydutycoil-6png

    Engineered and tested to match or exceed OE for spark energy output, impedance, and durability

  • heavydutycoil-7png

    High-temp boot prevents high-voltage leaks, while stainless-steel spring with internal ferrite noise suppressor prevents radio frequency interference (RFI)

  • heavydutycoil-8png

    Isolator manufactured using high voltage-resistant thermoplastics to prevent premature coil failure

  • heavydutycoil-9png

    Copper wires using higher insulation grade ensure heat resistance and prevent high voltage breakdown

  • heavydutycoil-10png

    Optimum wire distribution developed by extensive testing ensures superior functional parameters and durability

  • ne-ic-slider-comp1png

    OE: 8 primary winding sections.

    NAPA® Echlin®: With 10 primary winding sections, our design reduces the height of each section’s winding to decrease the risk of breakage between sections.

  • ne-ic-slider-comp2png

    OE: Uneven number of winding turns.

    NAPA® Echlin®: Our barrel winding distribution precisely reduces the number of turns in the first and last two sections to reduce the voltage gradient. When combined with our higher G2 insulation grade, our winding distribution lowers the risk of breakage within the winding.

  • ne-ic-slider-comp3png

    OE: Potted using “yellow” epoxy system.

    NAPA® Echlin®: When compared to common “amber/yellow” epoxy systems, our “black” epoxy system features nearly 40% higher insulation resistance to voltage breakdown.

Advanced Pencil Coil Technology

As engine technology evolves, coil-on-plug technology will continue to play an increasingly important role. NAPA® Echlin® premium pencil coils are leading the way with exceptional coverage for this growing category. Let’s take a closer look at our IC242 pencil coil:

  • pencil-coils-1png

    Silicone rubber boot withstands extreme heat and provides superior insulation

  • pencil-coils-2png

    Stainless steel spring resists corrosion

  • pencil-coils-3png

    Primary and secondary bobbins made from fiberglass-reinforced polyethylene terephthalate prevent voltage flashover for extended service life

  • pencil-coils-4png

    Internal core made from grainoriented electrical steel limits loss factor within magnetic circuit to reduce heat that may affect coil endurance

  • pencil-coils-5png

    External core made from oriented silicon steel for durability

  • pencil-coils-6png

    Neodymium magnet produces max high voltage output at all speeds

  • pencil-coils-7png

    Electronic ignition module profile and feedback signal matches fit, form, and function of original

  • pencil-coils-8png

    Tin-plated brass terminals improve electrical contact and protect against corrosion

Tech Tip: Replace Ignition Coils in Sets

Tech Tip: Replace Ignition Coils in Sets

For more than 100 years, when the OE failed, technicians trusted NAPA® Echlin® to deliver a part that’s equal
to or better than the original it’s replacing.

Learn about all the things that go into our