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Ford Ignition Coil

408 items

Shop precise fit replacement Ignition Coil to maintain and improve your vehicle's performance. Find the right parts for your make and model, backed by excellent customer service at A-Premium.

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Ignition Coil - Delphi GN10229Ignition Coil - Delphi GN10229
DelphiPart # GN10229
Ignition Coil - Delphi GN10229
51 Reviews
$45.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2003-2007 Ford Focus, 2005-2006 Ford Focus, 2005-2006 Ford Focus, 2005-2006 Ford Focus, 2005-2006 Ford Focus, 2005-2008 Ford Escape, 2007-2011 Ford Focus, 2007-2011 Ford Focus, 2007-2011 Ford Focus, 2009-2011 Ford Focus, 2010-2010 Ford Transit Connect, 2011-2012 Ford Transit Connect, 2013-2013 Ford Transit Connect, 2004-2005 Mazda 3, 2005-2005 Mazda 6, 2005-2006 Mazda Tribute, 2008-2008 Mazda Tribute, 2005-2008 Mercury Mariner
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10229, 5C1443, C1453, CLS1042, CLS1044, 921-2065, 673-6010, 4M5Z 12029-BA, 
...View more
item #1001VWUR
Note
Coil comes with Boot
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Ignition Coil - Delphi GN10180
DelphiPart # GN10180
Ignition Coil - Delphi GN10180
51 Reviews
$98.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1990-1995 Ford Thunderbird, 1994-1994 Ford Mustang, 1995-1995 Ford Contour, 1995-1995 Ford Contour, 1995-1995 Ford Contour, 1995-1995 Ford Thunderbird, 1995-2000 Ford Windstar, 1996-1997 Ford Thunderbird, 1996-1999 Ford Taurus, 1996-2000 Ford Contour, 1996-2000 Ford Mustang, 1998-2000 Ford E-150 Econoline, 1998-2000 Ford E-150 Econoline Club Wagon, 1998-2000 Ford E-250 Econoline, 1998-2000 Ford F-150, 1998-2000 Ford Ranger, 1995-1996 Jaguar XJ12, 1998-2000 Mazda B3000, 2000-2001 Mazda MPV, 1989-1990 Mercury Cougar
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10180, 5C1123, 26325, C901, CLS1051, 920-1014, 7A3, 60-3002, 
...View more
item #1001VSC3
Note
6 Overmolded HV Towers
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Ignition Coil - Delphi GN10388
DelphiPart # GN10388
Ignition Coil - Delphi GN10388
51 Reviews
$47.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1995-1996 Chrysler Cirrus, 1995-1996 Chrysler Sebring, 1996-1996 Chrysler Sebring, 1995-1996 Dodge Avenger, 1995-1996 Dodge Neon, 1995-1996 Dodge Stratus, 1995-1996 Dodge Stratus, 1996-1996 Dodge Caravan, 1996-1996 Dodge Grand Caravan, 1995-1996 Eagle Talon, 1996-1996 Eagle Talon, 1988-1989 Ford Festiva, 1995-1996 Mitsubishi Eclipse, 1995-1996 Mitsubishi Eclipse, 1996-1996 Mitsubishi Eclipse, 1995-1996 Plymouth Neon, 1996-1996 Plymouth Breeze, 1996-1996 Plymouth Grand Voyager, 1996-1996 Plymouth Voyager
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10388, 5C1089, 5C1090, 26339, C1136, C940, C526, E563A, 
...View more
item #1001VY6N
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Delphi GN10621 Ignition Coil
DelphiPart # GN10621
Delphi GN10621 Ignition Coil
51 Reviews
$76.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2012-2015 Ford Explorer, 2012-2018 Ford Edge, 2012-2018 Ford Focus, 2013-2017 Ford Taurus, 2013-2019 Ford Escape, 2013-2020 Ford Fusion, 2014-2018 Ford Special Service Police Sedan, 2015-2022 Ford Mustang, 2016-2019 Ford Explorer, 2018-2021 Ford EcoSport, 2022-2022 Ford EcoSport, 2012-2014 Land Rover Range Rover Evoque, 2013-2015 Land Rover LR2, 2015-2015 Land Rover Discovery Sport, 2015-2015 Land Rover Range Rover Evoque, 2016-2017 Land Rover Discovery Sport, 2016-2017 Land Rover Range Rover Evoque, 2013-2016 Lincoln MKT, 2013-2020 Lincoln MKZ, 2015-2019 Lincoln MKC
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10621, 5C1873, C1816, E1170, E1178, 36-8232, 673-6203, CM5Z 12029-A, 
...View more
item #1001W7C2
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Delphi GN10178 Ignition Coil
DelphiPart # GN10178
Delphi GN10178 Ignition Coil
51 Reviews
$80.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1989-1995 Ford Taurus, 1990-1994 Ford Aerostar, 1990-2011 Ford Ranger, 1991-1995 Ford Explorer, 1993-1995 Ford Taurus, 1995-1997 Ford Aerostar, 1995-1997 Ford Ranger, 1996-2010 Ford Explorer, 1997-1997 Ford E-150 Econoline, 1997-1997 Ford E-150 Econoline Club Wagon, 1997-1997 Ford E-250 Econoline, 1997-1997 Ford F-150, 1998-2000 Ford Ranger, 2001-2003 Ford Explorer Sport, 2001-2005 Ford Explorer Sport Trac, 2005-2010 Ford Mustang, 2007-2010 Ford Explorer Sport Trac, 1991-1994 Mazda Navajo, 1994-2009 Mazda B4000, 1995-1996 Mazda B3000
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10178, 5C1125, 26324, C925, F508, CLS1038, 920-1011, 920-1012, 
...View more
item #1001VSNE
Note
6 Female & Round HV Towers
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Ignition Coil - Delphi GN10185
DelphiPart # GN10185
Ignition Coil - Delphi GN10185
51 Reviews
$69.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1999-1999 Ford Contour, 2000-2000 Ford Contour, 2000-2002 Ford Focus, 2001-2004 Ford Escape, 2001-2011 Ford Ranger, 2003-2004 Ford Focus, 2001-2004 Mazda Tribute, 2001-2009 Mazda B2300, 2003-2004 Mazda 6, 2005-2005 Mazda 6, 1999-1999 Mercury Mystique, 2000-2000 Mercury Mystique
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10185, 5C1118, 26335, C1341, CLS1011, CLS1082, 920-1025, 2M5, 
...View more
item #1001VSPG
Note
4 Overmolded HV Towers
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Ignition Coil - Delphi GN10182
DelphiPart # GN10182
Ignition Coil - Delphi GN10182
51 Reviews
$51.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2007 Ford F-150, 2005-2006 Ford Mustang, 2005-2007 Ford Expedition, 2005-2007 Ford F-250 Super Duty, 2005-2007 Ford F-250 Super Duty, 2005-2007 Ford F-350 Super Duty, 2005-2007 Ford F-350 Super Duty, 2005-2007 Ford F-450 Super Duty, 2005-2007 Ford F-550 Super Duty, 2006-2007 Ford Explorer, 2006-2007 Ford F-53 Motorhome Chassis, 2007-2007 Ford Explorer Sport Trac, 2007-2007 Ford Mustang, 2008-2008 Ford Expedition, 2008-2008 Ford Explorer, 2008-2008 Ford Explorer Sport Trac, 2008-2008 Ford F-150, 2008-2008 Ford F-250 Super Duty, 2008-2008 Ford F-250 Super Duty, 2008-2008 Ford F-350 Super Duty
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10182, 5C1584, C1541, CLS1012, 921-2007, 7Q8, 60-1005, 673-6003, 
...View more
item #1001VSR8
Note
Coil without Module
Coil Comes with Boot
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Delphi GN10507 Ignition Coil
DelphiPart # GN10507
Delphi GN10507 Ignition Coil
51 Reviews
$65.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2009-2019 Ford Escape, 2010-2020 Ford Fusion, 2013-2018 Ford C-Max, 2013-2020 Ford Fusion, 2014-2016 Ford Transit Connect, 2017-2018 Ford Transit Connect, 2019-2020 Ford Police Responder Hybrid, 2019-2020 Ford SSV Plug-In Hybrid, 2019-2022 Ford Transit Connect, 2011-2012 Lincoln MKZ, 2013-2020 Lincoln MKZ, 2009-2011 Mercury Mariner, 2010-2011 Mercury Milan
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10507, 5C1715, C1658, E1121, 921-2141, 702546, 36-8197, 673-6202, 
...View more
item #1001W8HP
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Ignition Coil - Delphi GN10891
DelphiPart # GN10891
Ignition Coil - Delphi GN10891
51 Reviews
$37.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2016-2016 Ford Edge, 2016-2016 Ford F-150, 2016-2016 Ford F-150, 2016-2016 Ford F-150, 2016-2016 Ford F-150, 2016-2016 Ford F-150, 2016-2016 Ford F-150, 2016-2016 Ford Flex, 2016-2016 Ford Flex, 2016-2016 Ford Flex, 2016-2016 Ford Mustang, 2016-2016 Ford Police Interceptor Sedan, 2016-2016 Ford Police Interceptor Sedan, 2016-2016 Ford Police Interceptor Utility, 2016-2016 Ford Taurus, 2016-2016 Ford Taurus, 2016-2016 Ford Taurus, 2016-2016 Ford Transit-150, 2016-2016 Ford Transit-250, 2016-2016 Ford Transit-350
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10891, E1323, 7T4Z 12029-F, IC930, UF823, EBC1336, C50069DL
item #1001WDQV
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Ignition Coil - Delphi GN10638
DelphiPart # GN10638
Ignition Coil - Delphi GN10638
51 Reviews
$65.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2011-2014 Ford F-150, 2012-2012 Ford Taurus, 2013-2019 Ford Explorer, 2013-2019 Ford Flex, 2013-2019 Ford Police Interceptor Sedan, 2013-2019 Ford Taurus, 2014-2019 Ford Police Interceptor Utility, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2016 Ford F-150, 2015-2017 Ford Expedition, 2015-2019 Ford Transit-150, 2015-2019 Ford Transit-250, 2015-2019 Ford Transit-350
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10638, 5C1871, C1814, E1146, 921-2146, 36-8234, 6736300, BL3Z 12029-C, 
...View more
item #1001W8HG
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Ignition Coil - Delphi GN10843
DelphiPart # GN10843
Ignition Coil - Delphi GN10843
51 Reviews
$51.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2010-2011 Ford Flex, 2010-2011 Ford Taurus, 2010-2012 Ford Flex, 2011-2012 Ford Flex, 2012-2012 Ford Taurus, 2010-2011 Lincoln MKT, 2010-2012 Lincoln MKS, 2012-2012 Lincoln MKT, 2013-2013 Lincoln MKS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10843, 5C1856, C1799, E1112, AA5Z 12029-A, IC715SB, IC715, UF-612, 
...View more
item #1001WECX
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Ignition Coil - Delphi GN10179
DelphiPart # GN10179
Ignition Coil - Delphi GN10179
51 Reviews
$77.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2001-2002 Ford E-150 Econoline, 2001-2002 Ford E-150 Econoline Club Wagon, 2001-2002 Ford E-250 Econoline, 2001-2003 Ford F-150, 2001-2003 Ford Taurus, 2001-2003 Ford Windstar, 2001-2004 Ford Mustang, 2001-2008 Ford Ranger, 2003-2003 Ford E-150, 2003-2003 Ford E-150 Club Wagon, 2003-2003 Ford E-250, 2004-2004 Ford F-150 Heritage
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10179, 5C1124, 26330, 26338, C1312, CLS1003, 920-1016, 2M6, 
...View more
item #1001VTEC
Note
6 Overmolded HV Towers
Show less
Ignition Coil - Delphi GN10183
DelphiPart # GN10183
Ignition Coil - Delphi GN10183
51 Reviews
$49.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1984-1984 Ford E-250 Econoline Club Wagon, 1984-1984 Ford F-250, 1984-1985 Ford F-250, 1984-1996 Ford F-250, 1984-1996 Ford F-250, 1985-1985 Ford Bronco, 1985-1985 Ford Bronco II, 1985-1985 Ford E-150 Econoline, 1985-1985 Ford E-150 Econoline Club Wagon, 1985-1985 Ford E-250 Econoline, 1985-1985 Ford E-250 Econoline Club Wagon, 1985-1985 Ford E-350 Econoline, 1985-1985 Ford E-350 Econoline Club Wagon, 1985-1985 Ford Escort, 1985-1985 Ford F-150, 1985-1985 Ford F-350, 1985-1985 Ford LTD, 1985-1985 Ford LTD, 1985-1985 Ford LTD, 1985-1985 Ford Mustang
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10183, 5C1116, C1601, C839, F1953, F502Z, F508, F509, 
...View more
item #1001VVRE
Note
1 Male HV Tower
Show less
Delphi GN10233 Ignition Coil
DelphiPart # GN10233
Delphi GN10233 Ignition Coil
51 Reviews
$78.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2008-2008 Ford Expedition, 2008-2008 Ford Explorer, 2008-2008 Ford Explorer Sport Trac, 2008-2008 Ford F-150, 2008-2008 Ford F-250 Super Duty, 2008-2008 Ford F-250 Super Duty, 2008-2008 Ford F-350 Super Duty, 2008-2008 Ford F-350 Super Duty, 2008-2008 Ford F-53 Motorhome Chassis, 2008-2008 Ford F-550 Super Duty, 2008-2008 Ford Mustang, 2008-2009 Ford F-450 Super Duty, 2009-2009 Ford F-53 Motorhome Chassis, 2009-2010 Ford Explorer, 2009-2010 Ford Explorer Sport Trac, 2009-2010 Ford F-150, 2009-2010 Ford F-150, 2009-2010 Ford F-250 Super Duty, 2009-2010 Ford F-250 Super Duty, 2009-2010 Ford F-350 Super Duty
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10233, 5C1716, C1659, E509, 921-2066, 36-8180, 673-6200, 8L3Z 12029-A, 
...View more
item #1001VVZD
Show less
Ignition Coil - Delphi GN10237
DelphiPart # GN10237
Ignition Coil - Delphi GN10237
51 Reviews
$82.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2011 Ford Edge, 2008-2009 Ford Taurus, 2008-2009 Ford Taurus X, 2009-2009 Ford Flex, 2010-2011 Ford Flex, 2010-2012 Ford Fusion, 2010-2015 Ford Flex, 2010-2015 Ford Flex, 2010-2015 Ford Taurus, 2010-2015 Ford Taurus, 2010-2015 Ford Taurus, 2011-2011 Ford Explorer, 2011-2012 Ford Flex, 2011-2014 Ford F-150, 2011-2015 Ford Mustang, 2012-2012 Ford Explorer, 2012-2014 Ford Edge, 2012-2015 Ford Edge, 2012-2015 Ford Flex, 2013-2013 Ford Explorer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10237, 5C1652, C1595, 921-2137, 673-6013, 7T4Z 12029-E, CY01-18-100A, CYO118100A, 
...View more
item #1001VUWR
Show less
Delphi GN10420 Ignition Coil
DelphiPart # GN10420
Delphi GN10420 Ignition Coil
51 Reviews
$49.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2011-2016 Ford F-150, 2011-2016 Ford Mustang
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10420, 5C1859, C1802, E1122, 921-2138, 702539, 36-8198, 673-6304, 
...View more
item #1001W79E
Show less
Ignition Coil - Delphi GN10635
DelphiPart # GN10635
Ignition Coil - Delphi GN10635
51 Reviews
$32.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2014-2017 Ford Fiesta, 2015-2018 Ford Focus, 2018-2021 Ford EcoSport
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10635, E1236, 36-8291, CM5Z 12029-C, IC842, UF-736, C-949, DG-556, 
...View more
item #1001W6SV
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Ignition Coil - Delphi GN10957
DelphiPart # GN10957
Ignition Coil - Delphi GN10957
51 Reviews
$47.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2019-2021 Ford Edge, 2019-2022 Ford Transit Connect, 2019-2023 Ford Ranger, 2020-2021 Ford Explorer, 2020-2022 Ford Escape, 2021-2022 Ford Bronco Sport, 2021-2023 Ford Bronco, 2022-2023 Ford Maverick, 2023-2023 Ford Transit Connect, 2019-2023 Lincoln Nautilus, 2020-2020 Lincoln Corsair, 2021-2022 Lincoln Corsair, 2021-2022 Lincoln Corsair
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10957, JX6Z 12029-A, JX6Z 12029-B
item #1001WG6Q
Show less
Ignition Coil - Delphi GN10348
DelphiPart # GN10348
Ignition Coil - Delphi GN10348
51 Reviews
$106.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1993-1994 Ford Probe, 1992-1994 Mazda MX-3, 1993-1994 Mazda 626, 1993-1994 Mazda MX-6
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
GN10348, 5C1122, C1324, E515D, E225, E710, CLS1175, 178-8241, 
...View more
item #1001W0DX
Show less
Ignition Coil - Left Driver Side - Delphi GN10954
DelphiPart # GN10954
Ignition Coil - Left Driver Side - Delphi GN10954
51 Reviews
$87.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2018-2019 Ford E-350 Super Duty, 2018-2019 Ford E-450 Super Duty, 2018-2022 Ford F-250 Super Duty, 2018-2022 Ford F-350 Super Duty
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Installation PositionLeft
Part interchange
GN10954, E1334, IC941, UF834, HL3Z 12029-C
item #1001W9EN
Show less
Page 12 of 21

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.

Related Blogs

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

Decode the P0306 Cylinder 6 Misfire code. This step-by-step guide helps you pinpoint the exact cause, avoid unnecessary part replacements, reduce repair costs, and prevent severe engine damage.

Aug 10, 2026

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

The P0302 diagnostic trouble code indicates a misfire condition in cylinder 2 of the engine. Specifically, the P0302 code is triggered when the engine control module (ECM) detects that cylinder 2 is not firing properly or is experiencing a misfire.

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