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Cadillac Ignition Coil

205 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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Walker Products 920-1052 Ignition CoilWalker Products 920-1052 Ignition Coil
Walker ProductsPart # 920-1052
Walker Products 920-1052 Ignition Coil
4.329 Reviews
$55.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2002-2006 Cadillac Escalade, 2002-2006 Cadillac Escalade EXT, 2003-2006 Cadillac Escalade ESV, 1999-1999 Chevrolet Silverado 2500, 1999-2006 Chevrolet Silverado 1500, 1999-2006 Chevrolet Silverado 1500, 2000-2000 Chevrolet Silverado 2500, 2000-2000 Chevrolet Suburban 2500, 2000-2000 Chevrolet Tahoe, 2000-2000 Chevrolet Tahoe, 2000-2002 Chevrolet Suburban 1500, 2000-2004 Chevrolet Silverado 2500, 2001-2003 Chevrolet Silverado 1500 HD, 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500, 2001-2006 Chevrolet Suburban 2500, 2001-2006 Chevrolet Tahoe, 2002-2006 Chevrolet Avalanche 1500, 2003-2006 Chevrolet Avalanche 2500, 2003-2006 Chevrolet Silverado 2500 HD
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
920-1052, 50253, 19355500, GN10298, 12556893, 12558693, 12570553, 19418993, 
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item #1001L6D4
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Walker Products 920-1003 Ignition Coil
Walker ProductsPart # 920-1003
Walker Products 920-1003 Ignition Coil
4.329 Reviews
$32.99
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3-year warranty
90 days free return
Fits 1980-1981 American Motors Concord, 1980-1981 American Motors Spirit, 1981-1981 American Motors Eagle, 1977-1977 Buick Regal, 1977-1977 Buick Skylark, 1977-1977 Buick Skylark, 1977-1979 Buick Skylark, 1977-1980 Buick Regal, 1977-1981 Buick Century, 1978-1979 Buick Century, 1978-1979 Buick Electra, 1978-1979 Buick Skylark, 1980-1980 Buick Skylark, 1981-1981 Buick Century, 1981-1981 Buick Skylark, 1981-1982 Buick Regal, 1981-1982 Buick Skylark, 1982-1982 Buick LeSabre, 1982-1982 Buick LeSabre, 1982-1987 Buick Regal
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
920-1003, 5193, IC-19, D-523, D-530, GN10189, DC-55HS, 1875894, 
...View more
item #1001L38W
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Walker Products 921-2204 Ignition Coil
Walker ProductsPart # 921-2204
Walker Products 921-2204 Ignition Coil
4.329 Reviews
$61.99
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3-year warranty
90 days free return
Fits 2014-2017 Buick Regal, 2016-2020 Buick Envision, 2018-2019 Buick LaCrosse, 2018-2020 Buick Regal Sportback, 2018-2020 Buick Regal TourX, 2013-2016 Cadillac ATS, 2013-2019 Cadillac ATS, 2014-2019 Cadillac CTS, 2016-2018 Cadillac CT6, 2013-2014 Chevrolet Malibu, 2013-2014 Chevrolet Malibu, 2014-2019 Chevrolet Impala, 2015-2015 Chevrolet Malibu, 2015-2022 Chevrolet Colorado, 2016-2016 Chevrolet Malibu Limited, 2016-2022 Chevrolet Camaro, 2016-2022 Chevrolet Malibu, 2018-2019 Chevrolet Traverse, 2018-2020 Chevrolet Equinox, 2019-2021 Chevrolet Blazer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2204, C1827, 1208114, GN10682, UF-680, 12652405, 12654078, 25202791, 
...View more
item #1001L461
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Walker Products 920-1083 Ignition Coil
Walker ProductsPart # 920-1083
Walker Products 920-1083 Ignition Coil
4.329 Reviews
$32.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1982-1982 American Motors Concord, 1982-1982 American Motors Spirit, 1982-1983 American Motors Eagle, 1975-1975 Buick Apollo, 1981-1981 Buick Skylark, 1982-1982 Buick Skylark, 1982-1984 Buick Century, 1982-1984 Buick Century, 1982-1984 Buick Skyhawk, 1983-1984 Buick Skylark, 1982-1984 Cadillac Cimarron, 1975-1975 Chevrolet P10, 1975-1975 Chevrolet Vega, 1975-1976 Chevrolet K10, 1975-1976 Chevrolet K20, 1975-1977 Chevrolet C10, 1975-1977 Chevrolet C10 Suburban, 1975-1977 Chevrolet C20, 1975-1977 Chevrolet C20, 1975-1977 Chevrolet C20 Suburban
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
920-1083, IC-73, J8134003, D-525, IC-22, DC-59HS, 8134003, 12498046, 
...View more
item #1001L3TG
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Walker Products 921-2409 Ignition Coil
Walker ProductsPart # 921-2409
Walker Products 921-2409 Ignition Coil
4.329 Reviews
$96.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2019-2020 Cadillac CT6
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2409
item #1001LK43
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Walker Products 921-2343 Ignition Coil
Walker ProductsPart # 921-2343
Walker Products 921-2343 Ignition Coil
4.329 Reviews
$49.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017-2017 Buick LaCrosse, 2018-2019 Buick LaCrosse, 2018-2020 Buick Regal Sportback, 2016-2016 Cadillac ATS, 2016-2016 Cadillac ATS, 2016-2016 Cadillac CTS, 2016-2017 Cadillac ATS, 2016-2019 Cadillac CT6, 2016-2019 Cadillac CTS, 2016-2019 Cadillac CTS, 2016-2020 Cadillac CT6, 2017-2019 Cadillac ATS, 2017-2019 Cadillac ATS, 2017-2019 Cadillac CTS, 2017-2019 Cadillac XT5, 2020-2020 Cadillac CT5, 2020-2020 Cadillac XT5, 2020-2020 Cadillac XT6, 2016-2020 Chevrolet Camaro, 2017-2020 Chevrolet Colorado
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2343, 49118, GN10889, UF830, 12666339, 5C2094, C962, C-962
item #1001L58N
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Walker Products 928-3052-8 Ignition Coil Set
Walker ProductsPart # 928-3052-8
Walker Products 928-3052-8 Ignition Coil Set
4.329 Reviews
$276.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2004 Buick Rainier, 2002-2006 Cadillac Escalade, 2002-2006 Cadillac Escalade EXT, 2003-2006 Cadillac Escalade ESV, 1999-1999 Chevrolet Silverado 2500, 1999-2006 Chevrolet Silverado 1500, 1999-2006 Chevrolet Silverado 1500, 2000-2000 Chevrolet Silverado 2500, 2000-2000 Chevrolet Suburban 2500, 2000-2000 Chevrolet Tahoe, 2000-2000 Chevrolet Tahoe, 2000-2002 Chevrolet Suburban 1500, 2000-2004 Chevrolet Silverado 2500, 2001-2003 Chevrolet Silverado 1500 HD, 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500, 2001-2006 Chevrolet Suburban 2500, 2001-2006 Chevrolet Tahoe, 2002-2006 Chevrolet Avalanche 1500, 2003-2004 Chevrolet SSR
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity8
Item LocatedUnited States
Part interchange
928-3052-8, 50016, GN10119, 19418992, 12563293, 19005218, 5C1082, 2T2, 
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item #1001P6RZ
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Walker Products 921-2035 Ignition Coil, Left Driver Side
Walker ProductsPart # 921-2035
Walker Products 921-2035 Ignition Coil, Left Driver Side
4.329 Reviews
$103.99
Low stock: Only 1 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1999-2001 Cadillac Catera, 2003-2003 Cadillac CTS, 2004-2004 Cadillac CTS, 2000-2000 Saturn LS2, 2000-2000 Saturn LW2, 2002-2003 Saturn L300, 2002-2003 Saturn Vue, 2004-2004 Saturn L300, 2005-2005 Saturn L300
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Installation PositionLeft
Part interchange
921-2035, 36-8141, IC-1602, C1248, GN10332, UF-279, E328, 09118115, 
...View more
item #1001L51U
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Walker Products 921-2256 Ignition Coil
Walker ProductsPart # 921-2256
Walker Products 921-2256 Ignition Coil
4.329 Reviews
$45.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2006-2006 Buick Lucerne, 2006-2006 Cadillac DTS, 2006-2006 Cadillac STS, 2006-2006 Cadillac XLR
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2256, 50165, IC-1603, IC644, 48977, GN10455, 12594176, 12670154, 
...View more
item #1001L5EG
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Walker Products 921-2075 Ignition Coil
Walker ProductsPart # 921-2075
Walker Products 921-2075 Ignition Coil
4.329 Reviews
$50.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2006 Buick Rendezvous, 2005-2008 Buick LaCrosse, 2009-2009 Buick Enclave, 2004-2006 Cadillac SRX, 2004-2007 Cadillac CTS, 2005-2007 Cadillac CTS, 2005-2009 Cadillac STS, 2008-2008 Cadillac CTS, 2009-2009 Cadillac CTS, 2009-2009 Chevrolet Traverse, 2009-2009 GMC Acadia, 2006-2009 Saab 9-3, 2009-2009 Saturn Outlook
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2075, 50136, IC-289, GN10309, 12566569, 12583514, 12590954, 12613051, 
...View more
item #1001L3ZX
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Walker Products 921-2109 Ignition Coil
Walker ProductsPart # 921-2109
Walker Products 921-2109 Ignition Coil
4.329 Reviews
$47.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2008-2008 Buick Enclave, 2010-2010 Buick LaCrosse, 2010-2016 Buick LaCrosse, 2010-2022 Buick Enclave, 2007-2009 Cadillac SRX, 2008-2008 Cadillac CTS, 2009-2015 Cadillac CTS, 2010-2010 Cadillac STS, 2010-2014 Cadillac CTS, 2010-2016 Cadillac SRX, 2011-2011 Cadillac STS, 2013-2015 Cadillac ATS, 2013-2019 Cadillac XTS, 2016-2016 Cadillac CTS, 2016-2016 Cadillac CTS, 2016-2019 Cadillac ATS, 2016-2019 Cadillac CTS, 2017-2019 Cadillac CTS, 2022-2022 Cadillac CT4, 2008-2009 Chevrolet Captiva Sport
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2109, 50228, IC-287, GN10494, 12590990, 12618542, 12632479, 12610626, 
...View more
item #1001L5QR
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Walker Products 921-2224 Ignition Coil
Walker ProductsPart # 921-2224
Walker Products 921-2224 Ignition Coil
4.329 Reviews
$214.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2004 Cadillac Seville, 2004-2005 Cadillac DeVille, 2004-2005 Cadillac XLR, 2004-2006 Cadillac SRX, 2005-2006 Cadillac STS, 2004-2005 Pontiac Bonneville
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2224, 50152, 368203, 36-8203, C1509, IC502, GN10419, UF372, 
...View more
item #1001L5XG
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Walker Products 920-1021 Ignition Coil
Walker ProductsPart # 920-1021
Walker Products 920-1021 Ignition Coil
4.329 Reviews
$44.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2005 Cadillac CTS, 1997-2004 Chevrolet Corvette, 1998-1999 Chevrolet P30, 1998-2002 Chevrolet Camaro, 2001-2002 Chevrolet C3500HD, 2001-2002 Chevrolet Express 3500, 2001-2002 Chevrolet Silverado 2500 HD, 2001-2002 Chevrolet Silverado 3500, 2001-2002 Chevrolet Suburban 2500, 2002-2002 Chevrolet Avalanche 2500, 1998-1999 GMC P3500, 2001-2002 GMC C3500HD, 2001-2002 GMC Savana 3500, 2001-2002 GMC Sierra 2500 HD, 2001-2002 GMC Sierra 3500, 2001-2002 GMC Yukon XL 2500, 1998-2002 Pontiac Firebird, 2004-2004 Pontiac GTO
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
920-1021, 50073, IC-69, GN10374, 12256450, 12558948, 920-1021, C639, 
...View more
item #1001L33H
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Walker Products 921-2105 Ignition Coil
Walker ProductsPart # 921-2105
Walker Products 921-2105 Ignition Coil
4.329 Reviews
$59.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2011 Buick Lucerne, 2007-2009 Cadillac SRX, 2007-2009 Cadillac STS, 2007-2009 Cadillac XLR, 2007-2010 Cadillac STS, 2007-2011 Cadillac DTS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-2105, 36-8202, C1559, COP-35, UF543, E1043, 12597745, 42597745, 
...View more
item #1001L304
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Walker Products 928-3053-8 Ignition Coil Set
Walker ProductsPart # 928-3053-8
Walker Products 928-3053-8 Ignition Coil Set
4.329 Reviews
$313.99
Low stock: Only 3 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2005 Cadillac CTS, 1997-2004 Chevrolet Corvette, 1998-1999 Chevrolet P30, 1998-2002 Chevrolet Camaro, 2001-2002 Chevrolet C3500HD, 2001-2002 Chevrolet Express 3500, 2001-2002 Chevrolet Silverado 2500 HD, 2001-2002 Chevrolet Silverado 3500, 2001-2002 Chevrolet Suburban 2500, 2002-2002 Chevrolet Avalanche 2500, 1998-1999 GMC P3500, 2001-2002 GMC C3500HD, 2001-2002 GMC Savana 3500, 2001-2002 GMC Sierra 2500 HD, 2001-2002 GMC Sierra 3500, 2001-2002 GMC Yukon XL 2500, 1998-2002 Pontiac Firebird, 2004-2004 Pontiac GTO
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity8
Item LocatedUnited States
Part interchange
928-3053-8, 50073, 36-1208, C1144, C-192, UF192T, UF192, GN10374, 
...View more
item #1001P6EN
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Walker Products 921-92105 Ignition Coil
Walker ProductsPart # 921-92105
Walker Products 921-92105 Ignition Coil
4.329 Reviews
$66.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2011 Buick Lucerne, 2007-2009 Cadillac SRX, 2007-2009 Cadillac STS, 2007-2009 Cadillac XLR, 2007-2010 Cadillac STS, 2007-2011 Cadillac DTS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Part interchange
921-92105
item #1001LECL
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Walker Products 921-2144 Ignition Coil, Left Driver Side
Walker ProductsPart # 921-2144
Walker Products 921-2144 Ignition Coil, Left Driver Side
4.329 Reviews
$198.99
Low stock: Only 3 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2000-2002 Cadillac Eldorado, 2000-2003 Cadillac DeVille, 2000-2003 Cadillac Seville, 2001-2002 Oldsmobile Aurora, 2003-2003 Oldsmobile Aurora
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Installation PositionLeft
Part interchange
921-2144, C1246, COP-39, GN10110, UF266, UF266T, E249, 1104076, 
...View more
item #1001L141
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Walker Products 921-2145 Ignition Coil, Right Passenger Side
Walker ProductsPart # 921-2145
Walker Products 921-2145 Ignition Coil, Right Passenger Side
4.329 Reviews
$165.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2000-2002 Cadillac Eldorado, 2000-2003 Cadillac DeVille, 2000-2003 Cadillac Seville, 2001-2002 Oldsmobile Aurora, 2003-2003 Oldsmobile Aurora
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Installation PositionRight
Part interchange
921-2145, 2IGC0099, 36-8256, C1245, COP-38, GN10109, UF265, E248, 
...View more
item #1001L3LK
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Walker Products 921-2245 Ignition Coil, Right Passenger Side
Walker ProductsPart # 921-2245
Walker Products 921-2245 Ignition Coil, Right Passenger Side
4.329 Reviews
$72.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1999-2001 Cadillac Catera, 2003-2003 Cadillac CTS, 2004-2004 Cadillac CTS, 2000-2000 Saturn LS2, 2000-2000 Saturn LW2, 2002-2003 Saturn L300, 2002-2003 Saturn Vue, 2004-2004 Saturn L300, 2005-2005 Saturn L300
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
Quantity1
Item LocatedUnited States
Installation PositionRight
Part interchange
921-2245, IC-1601, IC377, GN10329, 9118114, 90584336, 12805, C662, 
...View more
item #1001L59D
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Walker Products 928-4083-6 Ignition Coil Set
Walker ProductsPart # 928-4083-6
Walker Products 928-4083-6 Ignition Coil Set
4.329 Reviews
$291.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2006 Buick Rendezvous, 2005-2008 Buick LaCrosse, 2009-2009 Buick Enclave, 2004-2006 Cadillac SRX, 2004-2007 Cadillac CTS, 2005-2007 Cadillac CTS, 2005-2009 Cadillac STS, 2008-2008 Cadillac CTS, 2009-2009 Cadillac CTS, 2009-2009 Chevrolet Traverse, 2009-2009 GMC Acadia, 2006-2009 Saab 9-3, 2009-2009 Saturn Outlook
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Cadillac
QuantityOne Set
Item LocatedUnited States
Part interchange
928-4083-6, 50136, GN10309, 12613051, 12629037, 12583514, 12590954, 12613057, 
...View more
item #1001P4DL
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Page 10 of 11

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

Hard Start in Hot Weather? Testing Your Fuel Pump and Ignition Coil for Heat Soak

Heat soak is a "final warning" for aging parts. This guide dives into why fuel pumps and ignition coils fail in high heat and how to professionally diagnose these faults to solve your car’s hot-weather starting issues.

Aug 17, 2026

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