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Kia Optima Ignition Coil

92 items

Replace a weak ignition coil before misfires, rough starts, or poor acceleration turn into bigger engine trouble. Find coils for everyday repair and maintenance.

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Spectra Premium C-782 Ignition Coil, Left Driver SideSpectra Premium C-782 Ignition Coil, Left Driver Side
Spectra PremiumPart # C-782
Spectra Premium C-782 Ignition Coil, Left Driver Side
52 Reviews
$35.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2007 Hyundai Santa Fe, 2008-2009 Hyundai Santa Fe, 2006-2006 Kia Optima, 2007-2009 Kia Magentis, 2007-2010 Kia Optima, 2007-2012 Kia Rondo, 2010-2010 Kia Magentis
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Installation PositionLeft
Part interchange
C-782, CUF2458, UF558, UF554T, UF558T, 273013E400, 50225, 9212157, 
...View more
item #1000Z3UW
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1 pc Ignition Coil | 4-Blade Terminal | Aisin ESCAZ-00376
AisinPart # ESCAZ-00376
1 pc Ignition Coil | 4-Blade Terminal | Aisin ESCAZ-00376
4.6567 Reviews
$34.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2019 - 2023 Kia Forte, 2016 - 2016 Kia Forte Koup, 2019 - 2021 Hyundai Veloster, 2017 - 2019 Kia Soul, 2018 - 2020 Hyundai Elantra GT, 2016 - 2020 Kia Optima, 2016 - 2017 Hyundai Veloster, 2017 - 2019 Hyundai Elantra, 2016 - 2018 Hyundai Tucson, 2015 - 2018 Hyundai Sonata, 2021 - 2023 Kia Seltos, 2018 - 2021 Hyundai Kona, 2020 - 2022 Kia Soul, 2016 - 2018 Kia Forte5, 2019 - 2019 Hyundai Sonata
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
273012B120
ConditionNew
item #10186HQ1
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Direct Ignition Coil - Denso 673-8310
DensoPart # 673-8310
Direct Ignition Coil - Denso 673-8310
4.523 Reviews
$79.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2011-2014 Hyundai Sonata, 2013-2016 Hyundai Santa Fe Sport, 2011-2015 Kia Optima, 2011-2015 Kia Sportage, 2016-2016 Kia Sportage
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-8310, C-856, IC750, U5259, 27300-2G700, 178-8510, GN10568, UF647, 
...View more
item #1002HC4U
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Direct Ignition Coil - Denso 673-8311
DensoPart # 673-8311
Direct Ignition Coil - Denso 673-8311
4.523 Reviews
$85.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017-2017 Genesis G80, 2009-2012 Hyundai Genesis, 2009-2014 Hyundai Sonata, 2010-2012 Hyundai Santa Fe, 2010-2013 Hyundai Tucson, 2010-2014 Hyundai Genesis Coupe, 2011-2016 Hyundai Equus, 2012-2016 Hyundai Genesis, 2013-2016 Hyundai Santa Fe Sport, 2014-2015 Hyundai Tucson, 2015-2015 Hyundai Sonata, 2015-2015 Hyundai Sonata, 2009-2009 Kia Borrego, 2010-2010 Kia Rondo, 2010-2013 Kia Forte, 2010-2013 Kia Forte Koup, 2010-2015 Kia Optima, 2011-2015 Kia Sorento, 2011-2016 Kia Sportage, 2015-2016 Kia K900
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-8311, C-773, IC712, U5295, 27300-3F100, 27300-2G000, 178-8353, UF611, 
...View more
item #1002HCVC
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ÜRO Parts HY1319600 Ignition Coil
ÜRO PartsPart # HY1319600
ÜRO Parts HY1319600 Ignition Coil
4.630 Reviews
$34.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015-2019 Hyundai Sonata, 2016-2016 Hyundai Veloster, 2016-2017 Hyundai Veloster, 2016-2017 Hyundai Veloster, 2016-2018 Hyundai Tucson, 2017-2020 Hyundai Elantra, 2018-2020 Hyundai Elantra GT, 2018-2021 Hyundai Kona, 2019-2021 Hyundai Veloster, 2016-2020 Kia Optima, 2017-2017 Kia Forte Koup, 2017-2018 Kia Forte5, 2017-2019 Kia Soul, 2017-2019 Kia Soul, 2018-2018 Kia Soul, 2020-2022 Kia Forte, 2020-2022 Kia Forte5, 2020-2022 Kia Soul, 2021-2021 Kia Seltos, 2021-2021 Kia Seltos
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
HY1319600, 27301-2B120, 1788580, GN10910, 5208, 21A0129, 49138, 36-8367, 
...View more
item #1000ZK87
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Denso 673-8302 Ignition Coil
DensoPart # 673-8302
Denso 673-8302 Ignition Coil
4.523 Reviews
$69.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2007 Hyundai Santa Fe, 2006-2006 Kia Optima, 2007-2007 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
ColorBlack
Part interchange
673-8302, C-826, IC634, U5074, 27301-3E100, 178-8355, GN10441, UF554, 
...View more
item #1002HHPQ
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ÜRO Parts HY1319563 Ignition Coil
ÜRO PartsPart # HY1319563
ÜRO Parts HY1319563 Ignition Coil
4.630 Reviews
$26.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2007 Hyundai Santa Fe, 2008-2009 Hyundai Santa Fe, 2007-2007 Kia Magentis, 2007-2007 Kia Optima, 2007-2012 Kia Rondo, 2008-2010 Kia Magentis, 2008-2010 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
HY1319563, 27301-3E400, 1788356, GN10441, GN10569, 673-8303, IC-K10003, 358057621, 
...View more
item #1000ZKUZ
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Beck/Arnley 178-8510 Direct Ignition Coil
Beck/ArnleyPart # 178-8510
Beck/Arnley 178-8510 Direct Ignition Coil
4.535 Reviews
$80.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2011-2014 Hyundai Sonata, 2013-2016 Hyundai Santa Fe Sport, 2011-2015 Kia Optima, 2011-2015 Kia Sportage, 2016-2016 Kia Sportage
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
178-8510
item #1000WXCR
Show less
Beck/Arnley 178-8581 Direct Ignition Coil
Beck/ArnleyPart # 178-8581
Beck/Arnley 178-8581 Direct Ignition Coil
4.535 Reviews
$61.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2016-2017 Hyundai Sonata, 2016-2017 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2017-2017 Hyundai Elantra, 2017-2017 Hyundai Sonata, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2019 Hyundai Sonata, 2018-2018 Hyundai Elantra, 2018-2018 Hyundai Elantra, 2018-2018 Hyundai Sonata, 2018-2018 Hyundai Sonata, 2018-2021 Hyundai Kona
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
178-8581
item #1000WYVY
Show less
Beck/Arnley 178-8292 Direct Ignition Coil
Beck/ArnleyPart # 178-8292
Beck/Arnley 178-8292 Direct Ignition Coil
4.535 Reviews
$73.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2006-2008 Hyundai Sonata, 2006-2017 Hyundai Azera, 2007-2008 Hyundai Entourage, 2007-2009 Hyundai Santa Fe, 2007-2012 Hyundai Veracruz, 2009-2010 Hyundai Sonata, 2009-2016 Hyundai Genesis, 2010-2012 Hyundai Santa Fe, 2010-2014 Hyundai Genesis Coupe, 2013-2018 Hyundai Santa Fe, 2015-2016 Hyundai Genesis Coupe, 2019-2019 Hyundai Santa Fe XL, 2006-2009 Kia Optima, 2006-2012 Kia Sedona, 2007-2009 Kia Amanti, 2007-2009 Kia Rondo, 2007-2009 Kia Sorento, 2009-2009 Kia Borrego, 2011-2013 Kia Sorento, 2014-2016 Kia Cadenza
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
178-8292
item #1000WW2N
Show less
Beck/Arnley 178-8545 Direct Ignition Coil
Beck/ArnleyPart # 178-8545
Beck/Arnley 178-8545 Direct Ignition Coil
4.535 Reviews
$85.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015-2015 Hyundai Sonata, 2015-2019 Hyundai Sonata, 2015-2019 Hyundai Sonata, 2015-2019 Hyundai Sonata, 2016-2017 Hyundai Sonata, 2016-2018 Hyundai Sonata, 2016-2018 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2017-2017 Hyundai Sonata, 2017-2018 Hyundai Santa Fe Sport, 2018-2018 Hyundai Sonata, 2018-2021 Hyundai Tucson, 2019-2019 Hyundai Sonata, 2019-2020 Hyundai Santa Fe, 2019-2022 Hyundai Veloster N, 2022-2023 Hyundai Kona N, 2022-2024 Hyundai Elantra N, 2016-2016 Kia Optima, 2016-2016 Kia Optima, 2016-2016 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
178-8545
item #1000WW8X
Show less
Denso 673-8303 Ignition Coil
DensoPart # 673-8303
Denso 673-8303 Ignition Coil
4.523 Reviews
$70.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2007 Hyundai Santa Fe, 2008-2009 Hyundai Santa Fe, 2007-2007 Kia Optima, 2007-2010 Kia Rondo, 2008-2010 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
ColorBlack
Part interchange
673-8303, C-782, IC638, U5088, 27301-3E400, 178-8356, UF558, GN10441, 
...View more
item #1002H6XN
Show less
Beck/Arnley 178-8355 Direct Ignition Coil, Right Passenger Side
Beck/ArnleyPart # 178-8355
Beck/Arnley 178-8355 Direct Ignition Coil, Right Passenger Side
4.535 Reviews
$64.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2009 Hyundai Santa Fe, 2006-2006 Kia Optima, 2007-2007 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Installation PositionRight
Part interchange
178-8355
item #1000WW8G
Show less
Delphi GN10417 Ignition Coil
DelphiPart # GN10417
Delphi GN10417 Ignition Coil
51 Reviews
$107.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1999-2001 Hyundai Sonata, 2002-2005 Hyundai Sonata, 2001-2001 Kia Optima, 2002-2006 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
GN10417, 5C1157, 23-0446, C1227, E598C, CLS1110, 920-1089, 27301-37100, 
...View more
item #1001W7KX
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Ignition Coil - Delphi GN10441
DelphiPart # GN10441
Ignition Coil - Delphi GN10441
51 Reviews
$54.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2009 Hyundai Santa Fe, 2006-2006 Kia Optima, 2007-2007 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
GN10441, 5C1624, 5C1782, 23-0488, C1725, CLS1209, 921-2158, 27301-3E100, 
...View more
item #1001W7Z2
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Delphi GN10877 Ignition Coil
DelphiPart # GN10877
Delphi GN10877 Ignition Coil
51 Reviews
$67.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2016-2017 Hyundai Sonata, 2016-2017 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2017-2017 Hyundai Elantra, 2017-2017 Hyundai Sonata, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2018 Hyundai Elantra, 2017-2019 Hyundai Sonata, 2018-2018 Hyundai Elantra, 2018-2018 Hyundai Elantra, 2018-2018 Hyundai Sonata, 2018-2018 Hyundai Sonata, 2018-2021 Hyundai Kona
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
GN10877, 23-0578, 27300-2E601, IC923, UF816, EBC1069, C1804
item #1001WCAG
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Ignition Coil - Delphi GN10730
DelphiPart # GN10730
Ignition Coil - Delphi GN10730
51 Reviews
$113.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017-2022 Genesis G90, 2018-2020 Genesis G80, 2019-2023 Genesis G70, 2015-2015 Hyundai Sonata, 2015-2019 Hyundai Sonata, 2016-2017 Hyundai Sonata, 2016-2018 Hyundai Sonata, 2016-2018 Hyundai Sonata, 2016-2019 Hyundai Sonata, 2017-2017 Hyundai Sonata, 2017-2018 Hyundai Santa Fe Sport, 2018-2018 Hyundai Sonata, 2018-2021 Hyundai Tucson, 2019-2019 Hyundai Sonata, 2019-2020 Hyundai Santa Fe, 2019-2022 Hyundai Veloster N, 2022-2023 Hyundai Elantra N, 2022-2023 Hyundai Kona N, 2016-2016 Kia Optima, 2016-2016 Kia Optima
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
GN10730, 23-0579, E1264, 27300-2GGA0, 36-8304, IC871, UF-764, EBC1134, 
...View more
item #1001WEY3
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Delphi GN10560 Ignition Coil
DelphiPart # GN10560
Delphi GN10560 Ignition Coil
51 Reviews
$63.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017-2017 Genesis G80, 2006-2008 Hyundai Sonata, 2006-2017 Hyundai Azera, 2007-2008 Hyundai Entourage, 2007-2009 Hyundai Santa Fe, 2007-2012 Hyundai Veracruz, 2009-2010 Hyundai Sonata, 2009-2016 Hyundai Genesis, 2010-2012 Hyundai Santa Fe, 2010-2014 Hyundai Genesis Coupe, 2013-2018 Hyundai Santa Fe, 2015-2016 Hyundai Genesis Coupe, 2019-2019 Hyundai Santa Fe XL, 2006-2009 Kia Optima, 2006-2012 Kia Sedona, 2007-2009 Kia Amanti, 2007-2009 Kia Rondo, 2007-2009 Kia Sorento, 2009-2009 Kia Borrego, 2011-2013 Kia Sorento
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
GN10560, 5C1587, 23-0135, C1544, 921-2106, 27301-3C010, 27301-3C000, 673-8312, 
...View more
item #1001W8W7
Show less
Delphi GN10568 Ignition Coil
DelphiPart # GN10568
Delphi GN10568 Ignition Coil
51 Reviews
$64.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017-2017 Genesis G80, 2009-2010 Hyundai Sonata, 2009-2012 Hyundai Genesis, 2010-2012 Hyundai Santa Fe, 2010-2013 Hyundai Tucson, 2010-2014 Hyundai Genesis Coupe, 2011-2014 Hyundai Sonata, 2011-2016 Hyundai Equus, 2012-2016 Hyundai Genesis, 2013-2016 Hyundai Santa Fe Sport, 2014-2015 Hyundai Tucson, 2015-2015 Hyundai Sonata, 2009-2009 Kia Borrego, 2010-2010 Kia Optima, 2010-2010 Kia Rondo, 2010-2013 Kia Forte, 2010-2013 Kia Forte Koup, 2011-2015 Kia Optima, 2011-2015 Kia Sorento, 2011-2015 Kia Sportage
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
GN10568, 5C1724, 5C1862, 23-0527, C1667, C1805, 27300-3F100, 27300-2G700, 
...View more
item #1001W66W
Show less
Ignition Coil - Delphi GN10910
DelphiPart # GN10910
Ignition Coil - Delphi GN10910
51 Reviews
$85.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015-2018 Hyundai Sonata, 2016-2016 Hyundai Veloster, 2016-2017 Hyundai Veloster, 2016-2017 Hyundai Veloster, 2016-2018 Hyundai Tucson, 2017-2020 Hyundai Elantra, 2018-2020 Hyundai Elantra GT, 2018-2021 Hyundai Kona, 2019-2021 Hyundai Veloster, 2016-2020 Kia Optima, 2017-2018 Kia Forte5, 2017-2019 Kia Soul, 2017-2019 Kia Soul, 2018-2018 Kia Soul, 2020-2020 Kia Soul, 2020-2022 Kia Forte, 2021-2021 Kia Seltos, 2021-2021 Kia Seltos, 2021-2022 Kia Seltos, 2021-2022 Kia Soul
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Quantity1
Item LocatedUnited States
Part interchange
GN10910, E1317, 27301-2B120, IC924, UF817
item #1001WAK9
Show less
Page 4 of 5

Premium Automotive Ignition Coils | Restore Engine Power & Fuel Efficiency

Are you experiencing rough idling, engine misfires, or a sudden drop in fuel economy? It might be time for an ignition coil replacement. As a heart of your vehicle's ignition system, a reliable automotive ignition coil transforms your battery's low voltage into the thousands of volts required to create an electric spark in the spark plugs, keeping your engine running smoothly.

At A-Premium, we provide OE-matching car ignition coil solutions designed to eliminate misfires, restore lost horsepower, and ensure reliable cold starts in any weather condition.

Anatomy of an A-Premium engine ignition coil

Anatomy of an A-Premium Engine Ignition Coil

To understand what makes a high-performance engine ignition coil, let’s look inside its core engineering:

  1. Integrated Driving Circuit: Features a compact, smart-integrated electronic chip at the top of the coil to ensure precise ignition timing and robust thermal resistance.
  2. Superior Quality Components & Materials: Wrapped with high-grade copper wire and premium epoxy resin insulation to prevent voltage leaks and withstand extreme under-hood heat.
  3. Rigorously Tested & Inspected: 100% factory stress-tested against thermal shock and vibration to guarantee long-lasting durability.
  4. Diagonal Windings Technology: Eliminates heavy, sectioned bobbins through advanced space-saving diagonal winding, significantly reducing the overall size and weight while maximizing energy output.

Our Advantages: Built for Real-World Driving Scenarios

Our automotive ignition coil lineup is engineered to solve everyday driving pains:

  • The Daily Commute (Stop-and-Go Traffic): Misfires often happen when idling at red lights. Our coils deliver stable, continuous voltage output, eliminating rough idles and ensuring seamless acceleration.
  • Extreme Weather Performance: Cheap coils crack under freezing winter temperatures or intense summer engine heat. Our high-dielectric epoxy coatings prevent micro-cracks, ensuring your engine fires up instantly on the first crank.
  • Fuel & Emission Savings: A weak spark leads to unburnt fuel. Upgrading your worn car ignition coil ensures complete combustion, optimizing your MPG and helping you pass emissions tests effortlessly.

Smart Buyer’s Guide: How to Choose the Best Ignition Coil

Navigating the market for an engine ignition coil can be confusing. Here is what smart buyers look for to get the perfect match:

1. Matching by Vehicle Make & Fitment (The #1 Priority)

Ignition systems are highly sensitive. A generic coil will cause error codes. Most users search and filter by their vehicle’s specific Year, Make, and Model, such as Ford EcoBoost, Honda VTEC, or Toyota VVT-i systems. Always use our fitment selector at the top of the page to find the exact OEM specification for your car.

2. When to Buy an Ignition Coil & Spark Plug Kit? (The Smart Money Move)

Should you buy them together? 90% of mechanics recommend it.

  • The Reason: A worn, old spark plug has a wider gap, which forces the engine ignition coil to work twice as hard to bridge that gap. This extra workload overheats the coil and burns it out prematurely.
  • The Strategy: If your vehicle has crossed 80,000 miles and you are doing an ignition coil replacement, always buy a complete coil and spark plug kit. It saves you from tearing down the engine twice and protects your new investment.

Replacement Checklist: When to Replace vs. When to Keep

Not every engine hiccup requires a new coil. Use this quick checklist to decide your next move:

Time to Replace if:

  • You have a confirmed OBD-II trouble code between P0300 to P0308, indicating a specific cylinder misfire.
  • The plastic housing of the coil shows visible hairline cracks, melting, or burning.
  • Your vehicle has passed 100,000 miles, as ignition coils are wear items and generally degrade after this milestone.

Do NOT Replace Yet if:

  • Your car won't crank at all. This is usually a dead battery or starter motor issue, not the ignition coil.
  • You have a misfire code but haven't checked for oil leaks. Often, a leaking valve cover gasket floods the spark plug well with oil, causing a short circuit. Simply cleaning the oil and replacing the gasket might fix the issue without needing a new coil.

Frequently Asked Questions (FAQ)

Can I replace just one faulty ignition coil, or should I replace them all at once?

If your vehicle has low mileage, replacing just the single failed car ignition coil is perfectly fine. However, if your car has over 80,000 miles, all the coils have experienced the same amount of heat and stress. When one fails, the others are usually close behind. Replacing the whole set at once ensures consistent engine balance and saves on future labor costs.

What are the most common symptoms of a failing engine ignition coil?

The most prominent signs include a flashing Check Engine Light, sudden engine shaking, especially at idle or under load, poor fuel economy, backfiring, and a noticeable hesitation or jerking when you step on the gas pedal.

How long does a typical automotive ignition coil last?

High-quality OEM-grade ignition coils are built to last between 80,000 to 100,000 miles. However, exposure to excessive engine vibration, oil leaks from a failing valve cover gasket, or neglected, worn-out spark plugs can drastically shorten their lifespan.

Will changing my ignition coils improve my gas mileage?

Yes. If your current coils are weak or failing, they create incomplete combustion in the cylinders, meaning your engine is literally throwing away unburnt fuel through the exhaust. Performing an ignition coil replacement restores 100% combustion efficiency, bringing your fuel economy back to factory-fresh levels.

Is it safe to drive with a misfiring ignition coil?

No, you should avoid it. Driving with a failed ignition coil means unburnt raw fuel is entering your exhaust system. This fuel will quickly ignite inside your catalytic converter, overheating it and melting its internal structure. A catalytic converter replacement is significantly more expensive than a simple ignition coil swap.

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P0301 Code: Cylinder 1 Misfire Diagnosis and Fix

Experiencing engine issues? The P0301 code signals a cylinder 1 misfire, impacting performance and fuel efficiency. Discover the causes, symptoms, and effective fixes to quickly get your engine back to optimal performance.

Aug 10, 2026

P0351: Ignition Coil A Primary/Secondary Circuit Malfunction

Decode the P0351 Ignition Coil A fault. Learn its meaning, symptoms, and causes like failed coils or bad wiring. Master the DIY diagnosis, including the coil swap test, to avoid costly PCM replacements and restore engine performance efficiently.

Aug 10, 2026

P0306 Code: Cylinder 6 Misfire Causes, Diagnosis, and Fix

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P0302 Code: How to Diagnose and Fix a Cylinder 2 Misfire

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Jul 30, 2026

How To Replace Ignition Coil Ford F150?

An ignition coil in Ford F150 and other cars is a part of the engine responsible for amping up the low-volt battery power in your car to enough voltage so that it can easily create a spark in the spark plug to start the engine.

Jul 21, 2026