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Oldsmobile Alero Ignition Coil

20 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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Ignition Coil - Delphi GN10113Ignition Coil - Delphi GN10113
DelphiPart # GN10113
Ignition Coil - Delphi GN10113
4.538 Reviews
$91.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2003-2003 Chevrolet Cavalier, 2003-2004 Chevrolet Cavalier, 2003-2004 Chevrolet Cavalier, 2003-2004 Chevrolet Cavalier, 2004-2004 Chevrolet Cavalier, 2004-2005 Chevrolet Classic, 2004-2006 Chevrolet Malibu, 2005-2005 Chevrolet Cavalier, 2005-2006 Chevrolet Cobalt, 2006-2006 Chevrolet HHR, 2003-2004 Oldsmobile Alero, 2003-2005 Pontiac Grand Am, 2003-2005 Pontiac Sunfire, 2000-2000 Saturn LS, 2000-2000 Saturn LS1, 2000-2000 Saturn LW1, 2001-2002 Saturn L100, 2001-2003 Saturn L200, 2001-2003 Saturn LW200, 2002-2007 Saturn Vue
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
GN10113, 5C1492, 5C1611, 26348, C1492, D512A, E411, 921-2047, 
...View more
item #1001VX6P
Note
L850 Coil Cassette without Module
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Ignition Coil - Delphi GN10111
DelphiPart # GN10111
Ignition Coil - Delphi GN10111
4.538 Reviews
$180.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2003 Chevrolet Cavalier, 2002-2004 Chevrolet Cavalier, 2003-2004 Chevrolet Cavalier, 2003-2004 Chevrolet Cavalier, 2004-2004 Chevrolet Cavalier, 2004-2005 Chevrolet Classic, 2004-2006 Chevrolet Malibu, 2005-2005 Chevrolet Cavalier, 2005-2006 Chevrolet Cobalt, 2006-2006 Chevrolet HHR, 2002-2004 Oldsmobile Alero, 2002-2002 Pontiac Sunfire, 2002-2002 Pontiac Sunfire, 2002-2002 Pontiac Sunfire, 2002-2005 Pontiac Grand Am, 2003-2005 Pontiac Sunfire
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
GN10111, 6H1378, DR105, D1962D, E411, 10458422, 12580538, 2-50111, 
...View more
item #1001VW04
Note
L850 Coil Cassette, Module & 4 Boots
Show less
Ignition Coil - Delphi GN10176
DelphiPart # GN10176
Ignition Coil - Delphi GN10176
4.538 Reviews
$48.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1988-1995 Buick Skylark, 1996-1998 Buick Skylark, 1990-1994 Chevrolet Beretta, 1995-1995 Chevrolet Cavalier, 1996-2002 Chevrolet Cavalier, 1997-1999 Chevrolet Malibu, 1987-1987 Oldsmobile Calais, 1988-1991 Oldsmobile Cutlass Calais, 1990-1991 Oldsmobile Cutlass Supreme, 1992-1995 Oldsmobile Achieva, 1996-1998 Oldsmobile Achieva, 1999-2001 Oldsmobile Alero, 1988-1995 Pontiac Grand Am, 1990-1991 Pontiac Grand Prix, 1995-1995 Pontiac Sunfire, 1996-2001 Pontiac Grand Am, 1996-2002 Pontiac Sunfire
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
GN10176, 5C1059, C852, D563, E95, E95P, 920-1022, 6A5, 
...View more
item #1001VT33
Note
Special Dis Coil
No Module
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Ignition Coil - Delphi GN10123
DelphiPart # GN10123
Ignition Coil - Delphi GN10123
4.538 Reviews
$48.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1986-1987 Buick Electra, 1986-1987 Buick Riviera, 1986-1988 Buick Century, 1986-1988 Buick LeSabre, 1987-1987 Buick Somerset, 1987-1988 Buick Century, 1987-1989 Buick Skyhawk, 1987-1991 Buick Skylark, 1987-1992 Buick Century, 1988-2004 Buick Regal, 1989-1989 Buick Century, 1989-1993 Buick Century, 1989-1993 Buick Skylark, 1991-1991 Buick Reatta, 1991-1993 Buick Riviera, 1991-2005 Buick Park Avenue, 1992-1992 Buick LeSabre, 1993-1993 Buick Century, 1993-2005 Buick LeSabre, 1994-1998 Buick Skylark
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
GN10123, 5C1058, 5C1077, 26221, C1316, C-849, D540, D545, 
...View more
item #1001VXLV
Note
Connector Interfaces with Module
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Spectra Premium C-765 Ignition Coil
Spectra PremiumPart # C-765
Spectra Premium C-765 Ignition Coil
52 Reviews
$107.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2002-2002 Chevrolet Cavalier, 2003-2005 Chevrolet Cavalier, 2004-2005 Chevrolet Classic, 2004-2006 Chevrolet Malibu, 2005-2006 Chevrolet Cobalt, 2006-2006 Chevrolet HHR, 2002-2004 Oldsmobile Alero, 2002-2002 Pontiac Sunfire, 2002-2002 Pontiac Sunfire, 2002-2002 Pontiac Sunfire, 2002-2005 Pontiac Grand Am, 2003-2005 Pontiac Sunfire, 2005-2006 Pontiac Pursuit, 2000-2000 Saturn LS, 2000-2000 Saturn LS1, 2000-2000 Saturn LW1, 2001-2002 Saturn L100, 2001-2003 Saturn L200, 2001-2003 Saturn LW200, 2002-2007 Saturn Vue
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
C-765, CUF391, U6026, 521806, UF391, UF391T, 26348, D512A, 
...View more
item #1000Z2NR
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Walker Products 920-1022 Ignition Coil
Walker ProductsPart # 920-1022
Walker Products 920-1022 Ignition Coil
4.325 Reviews
$38.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits 1988-1995 Buick Skylark, 1996-1998 Buick Skylark, 1990-1994 Chevrolet Beretta, 1995-1995 Chevrolet Cavalier, 1995-2002 Chevrolet Cavalier, 1997-1999 Chevrolet Malibu, 1987-1987 Oldsmobile Calais, 1988-1991 Oldsmobile Cutlass Calais, 1990-1991 Oldsmobile Cutlass Supreme, 1992-1995 Oldsmobile Achieva, 1996-1998 Oldsmobile Achieva, 1999-2001 Oldsmobile Alero, 1988-1995 Pontiac Grand Am, 1990-1991 Pontiac Grand Prix, 1995-1995 Pontiac Sunfire, 1996-2001 Pontiac Grand Am, 1996-2002 Pontiac Sunfire
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
920-1022, 5199, D-547, IC-34, GN10176, 6A5, 10457109, 10472748, 
...View more
item #1001L6KH
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Spectra Premium C-503 Ignition Coil
Spectra PremiumPart # C-503
Spectra Premium C-503 Ignition Coil
52 Reviews
$31.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1986-1986 Buick LeSabre, 1986-1987 Buick Electra, 1986-1987 Buick Riviera, 1986-1988 Buick Century, 1986-1990 Buick LeSabre, 1987-1987 Buick Somerset, 1987-1988 Buick Century, 1987-1989 Buick Skyhawk, 1987-1991 Buick Skylark, 1987-2005 Buick Century, 1988-2004 Buick Regal, 1989-1993 Buick Skylark, 1990-1990 Buick Electra, 1990-1990 Buick Reatta, 1991-1991 Buick Reatta, 1991-1992 Buick LeSabre, 1991-1992 Buick Park Avenue, 1991-1993 Buick Riviera, 1993-2005 Buick LeSabre, 1993-2005 Buick Park Avenue
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
C-503, CDR39, CUF76, DR39T, DR39, 8104683910, 8104724010, D555, 
...View more
item #1000Z4X6
Show less
Walker Products 920-1005 Ignition Coil
Walker ProductsPart # 920-1005
Walker Products 920-1005 Ignition Coil
4.325 Reviews
$34.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1986-1987 Buick Electra, 1986-1987 Buick Riviera, 1986-1988 Buick Century, 1986-1990 Buick LeSabre, 1987-1987 Buick Somerset, 1987-1988 Buick Century, 1987-1989 Buick Skyhawk, 1987-1991 Buick Skylark, 1987-1992 Buick Century, 1988-2004 Buick Regal, 1989-1989 Buick Century, 1989-1993 Buick Century, 1989-1993 Buick Skylark, 1990-1990 Buick Electra, 1990-1990 Buick Reatta, 1991-1991 Buick Reatta, 1991-1992 Buick LeSabre, 1991-1992 Buick Park Avenue, 1991-1993 Buick Riviera, 1993-1993 Buick Century
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
920-1005, D-540, IC-30, DC-63, 10468391, 10472401, 10477602, 10482928, 
...View more
item #1001L1VK
Show less
Walker Products 921-2047 Ignition Coil
Walker ProductsPart # 921-2047
Walker Products 921-2047 Ignition Coil
4.325 Reviews
$82.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2001-2002 Chevrolet Astra, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2003-2005 Chevrolet Cavalier, 2004-2005 Chevrolet Classic, 2004-2006 Chevrolet Malibu, 2005-2006 Chevrolet Cobalt, 2006-2006 Chevrolet HHR, 2002-2004 Oldsmobile Alero, 2002-2002 Pontiac Sunfire, 2002-2002 Pontiac Sunfire, 2002-2002 Pontiac Sunfire, 2002-2005 Pontiac Grand Am, 2003-2005 Pontiac Sunfire, 2000-2000 Saturn LS, 2000-2000 Saturn LS1
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
921-2047, CUF391, 50111, IC-281, 48707, GN10111, GN10113, 1104070, 
...View more
item #1001L2PK
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Walker Products 928-3050-3 Ignition Coil Set
Walker ProductsPart # 928-3050-3
Walker Products 928-3050-3 Ignition Coil Set
4.325 Reviews
$73.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1986-1987 Buick Electra, 1986-1987 Buick Riviera, 1986-1988 Buick Century, 1986-1990 Buick LeSabre, 1987-1989 Buick Century, 1988-2004 Buick Regal, 1989-1993 Buick Century, 1989-1993 Buick Skylark, 1990-1990 Buick Electra, 1990-1990 Buick Reatta, 1991-1991 Buick Reatta, 1991-1992 Buick LeSabre, 1991-1992 Buick Park Avenue, 1991-1993 Buick Riviera, 1993-2005 Buick LeSabre, 1993-2005 Buick Park Avenue, 1994-1996 Buick Century, 1994-1998 Buick Skylark, 1995-1999 Buick Riviera, 1997-2005 Buick Century
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
QuantityOne Set
Item LocatedUnited States
Part interchange
928-3050-3, IC-30, DC-63, D576, 1103662, 1103744, 10467067, 10477602, 
...View more
item #1001P3AK
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Spectra Premium C-562 Ignition Coil
Spectra PremiumPart # C-562
Spectra Premium C-562 Ignition Coil
52 Reviews
$45.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1988-1995 Buick Skylark, 1996-1998 Buick Skylark, 1990-1994 Chevrolet Beretta, 1995-1995 Chevrolet Cavalier, 1995-2001 Chevrolet Cavalier, 1997-1999 Chevrolet Malibu, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 2002-2002 Chevrolet Cavalier, 1987-1987 Oldsmobile Calais, 1988-1991 Oldsmobile Cutlass Calais, 1990-1991 Oldsmobile Cutlass Supreme, 1992-1995 Oldsmobile Achieva, 1996-1998 Oldsmobile Achieva, 1999-2001 Oldsmobile Alero, 1988-1995 Pontiac Grand Am, 1990-1991 Pontiac Grand Prix
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
C-562, CDR41, DR41T, DR41, D585A, D563, 5199, 9201022, 
...View more
item #1000Z29W
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1 pc Ignition Coil for 2002-2004 Oldsmobile Alero | Aisin ESCGM-00144
AisinPart # ESCGM-00144
1 pc Ignition Coil for 2002-2004 Oldsmobile Alero | Aisin ESCGM-00144
4.6543 Reviews
$73.99
Edit ZIP code
3-year warranty
90 days free return
Fits Oldsmobile Alero: 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
10457880, 12580538, 12587426, 19428733
ConditionNew
item #1018A3P6
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3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Blade Terminal | A-Premium APIC1456
A-Premium®Part # APIC1456
3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Blade Terminal | A-Premium APIC1456
4.6543 Reviews
$63.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Oldsmobile Alero: 1999 2000 2001 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity3
Item LocatedUnited States
ColorRed
ConditionNew
item #10154VLQ
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3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Blade Terminal | A-Premium APIC1488
A-Premium®Part # APIC1488
3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Blade Terminal | A-Premium APIC1488
4.6543 Reviews
$56.99
Edit ZIP code
3-year warranty
90 days free return
Fits Oldsmobile Alero: 1999 2000 2001 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Item LocatedUnited States
ColorYellow
ConditionNew
item #1015V6TC
Note
Package Included: 3x Yellow Ignition Coils.
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3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Blade Terminal | A-Premium APIC1368
A-Premium®Part # APIC1368
3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Blade Terminal | A-Premium APIC1368
4.6543 Reviews
$52.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
Fits Oldsmobile Alero: 1999 2000 2001 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity3
Item LocatedUnited States
ColorBlue
ConditionNew
item #1018499Z
Show less
1 pc Ignition Coil for 2002-2004 Oldsmobile Alero | 4-Blade Terminal | A-Premium APIC0116
A-Premium®Part # APIC0116
1 pc Ignition Coil for 2002-2004 Oldsmobile Alero | 4-Blade Terminal | A-Premium APIC0116
4.6543 Reviews
$57.99
Edit ZIP code
3-year warranty
90 days free return
Fits Oldsmobile Alero: 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Installation PositionFront Side
ColorBlack
item #1002QSK3
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3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Bolt Terminal | Aisin ESCAZ-00096
AisinPart # ESCAZ-00096
3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Bolt Terminal | Aisin ESCAZ-00096
4.6543 Reviews
$59.99
Edit ZIP code
3-year warranty
90 days free return
Fits Oldsmobile Alero: 1999 2000 2001 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity3
Item LocatedUnited States
Part interchange
10467067, 10468391, 10470600, 10472401, 10477602, 10482928, 10495121, 10497771, 
...View more
ConditionNew
item #10187C7U
Show less
1 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Pin Terminal | Aisin ESCAZ-00095
AisinPart # ESCAZ-00095
1 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 2-Pin Terminal | Aisin ESCAZ-00095
4.6543 Reviews
$26.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
10467067, 10468391, 10470600, 10472401, 10477602, 10482928, 10495121, 10497771, 
...View more
ConditionNew
item #10187CCV
Show less
3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 6-Pin Terminal | A-Premium APIC0099
A-Premium®Part # APIC0099
3 pc Ignition Coil for 1999-2004 Oldsmobile Alero | 6-Pin Terminal | A-Premium APIC0099
4.6543 Reviews
$35.99
Edit ZIP code
3-year warranty
90 days free return
Fits Oldsmobile Alero: 1999 2000 2001 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity3
Item LocatedUnited States
Installation PositionFront Side
ColorBlack
item #1002PNSG
Show less
Beck/Arnley 178-8206 Ignition Coil
Beck/ArnleyPart # 178-8206
Beck/Arnley 178-8206 Ignition Coil
4.434 Reviews
$58.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1986-1988 Buick Century, 1986-1989 Buick Electra, 1986-1990 Buick LeSabre, 1986-1993 Buick Riviera, 1987-1987 Buick Somerset, 1987-1989 Buick Skyhawk, 1987-1991 Buick Skylark, 1988-2004 Buick Regal, 1989-1993 Buick Century, 1990-1990 Buick Electra, 1990-1991 Buick Reatta, 1991-2005 Buick LeSabre, 1991-2005 Buick Park Avenue, 1992-1993 Buick Skylark, 1994-1996 Buick Century, 1994-1998 Buick Skylark, 1995-1999 Buick Riviera, 1997-2005 Buick Century, 2002-2003 Buick Rendezvous, 2004-2005 Buick Rendezvous
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Oldsmobile Alero
Quantity1
Item LocatedUnited States
Part interchange
178-8206
item #1000X287
Show less

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.