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2022 Ford Expedition Ignition Coil

19 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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Walker Products 921-2444 Ignition CoilWalker Products 921-2444 Ignition Coil
Walker ProductsPart # 921-2444
Walker Products 921-2444 Ignition Coil
4.226 Reviews
$64.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2021-2024 Ford F-150, 2022-2024 Ford Expedition, 2023-2024 Lincoln Navigator
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Part interchange
921-2444
item #1001LEXC
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Walker Products 921-2146 Ignition Coil
Walker ProductsPart # 921-2146
Walker Products 921-2146 Ignition Coil
4.226 Reviews
$50.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2011-2014 Ford F-150, 2011-2019 Ford Taurus, 2013-2019 Ford Explorer, 2013-2019 Ford Flex, 2013-2019 Ford Police Interceptor Sedan, 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, 2015-2019 Ford Transit-350 HD
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Part interchange
921-2146, 50261, IC-401, BL3Z12029A, BL3Z12029B, BL3Z12029C, GN10638, C-902, 
...View more
item #1001L52L
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Standard UF826 Ignition Coil
StandardPart # UF826
Standard UF826 Ignition Coil
4.542 Reviews
$41.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2022 Ford GT, 2018-2020 Ford F-150, 2018-2021 Ford Expedition, 2018-2018 Lincoln Navigator, 2019-2021 Lincoln Navigator
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
ColorBlack
Part interchange
UF826, GN10892, IC933, DG560, C-1108, 36-8330, IGC0215, E1326, 
...View more
item #10016TZR
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6 pc Ignition Coil | Aisin ESCFD-00301
AisinPart # ESCFD-00301
6 pc Ignition Coil | Aisin ESCFD-00301
4.6550 Reviews
$145.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015 - 2021 Ford Transit-350, 2011 - 2016 Ford F-150, 2015 - 2024 Ford Transit-350 HD, 2015 - 2024 Ford Transit-250, 2015 - 2017 Lincoln Navigator, 2013 - 2016 Ford Taurus, 2015 - 2017 Ford Expedition, 2013 - 2019 Ford Flex, 2013 - 2019 Lincoln MKT, 2014 - 2019 Ford Police Interceptor Utility, 2013 - 2016 Lincoln MKS, 2013 - 2019 Ford Explorer, 2013 - 2019 Ford Police Interceptor Sedan, 2015 - 2024 Ford Transit-150
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
Part interchange
BL3Z12029A, BL3Z12029B, BL3Z12029C
ConditionNew
item #10189Q58
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6 pc Ignition Coil | Aisin ESCFD-00303
AisinPart # ESCFD-00303
6 pc Ignition Coil | Aisin ESCFD-00303
4.6550 Reviews
$145.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Fits 2017 - 2020 Ford F-150, 2018 - 2018 Lincoln Navigator, 2019 - 2021 Lincoln Navigator, 2017 - 2022 Ford GT, 2018 - 2021 Ford Expedition
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
Part interchange
HL3Z12029A, HL3Z12029D
ConditionNew
item #10189T2T
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6 pc Ignition Coil for 2022-2024 Ford Expedition | 3-Pin Terminal | A-Premium APIC1648
A-Premium®Part # APIC1648
6 pc Ignition Coil for 2022-2024 Ford Expedition | 3-Pin Terminal | A-Premium APIC1648
4.6550 Reviews
$122.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
Fits Ford Expedition: 2022 2023 2024
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
ColorBlack
ConditionNew
item #10188EKU
Show less
1 pc Ignition Coil for 2022-2024 Ford Expedition | 3-Pin Terminal | A-Premium APIC1649
A-Premium®Part # APIC1649
1 pc Ignition Coil for 2022-2024 Ford Expedition | 3-Pin Terminal | A-Premium APIC1649
4.6550 Reviews
$28.99
Edit ZIP code
3-year warranty
90 days free return
Fits Ford Expedition: 2022 2023 2024
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
ColorBlack
ConditionNew
item #10188C4A
Show less
1 pc Ignition Coil | 3-Blade Terminal | Aisin ESCFD-00302
AisinPart # ESCFD-00302
1 pc Ignition Coil | 3-Blade Terminal | Aisin ESCFD-00302
4.6550 Reviews
$32.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Fits 2017 - 2020 Ford F-150, 2018 - 2018 Lincoln Navigator, 2019 - 2021 Lincoln Navigator, 2017 - 2022 Ford GT, 2018 - 2021 Ford Expedition
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Part interchange
HL3Z12029A, HL3Z12029D
ConditionNew
item #10186NXN
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1 pc Ignition Coil | 3-Blade Terminal | A-Premium APIC0377
A-Premium®Part # APIC0377
1 pc Ignition Coil | 3-Blade Terminal | A-Premium APIC0377
4.6550 Reviews
$27.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits 2017 - 2020 Ford F-150, 2018 - 2018 Lincoln Navigator, 2019 - 2021 Lincoln Navigator, 2017 - 2022 Ford GT, 2018 - 2021 Ford Expedition
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Installation PositionFront Side
ColorBlack
item #1002QZ7G
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6 pc Ignition Coil | 3-Blade Terminal | A-Premium APIC0378
A-Premium®Part # APIC0378
6 pc Ignition Coil | 3-Blade Terminal | A-Premium APIC0378
4.6550 Reviews
$98.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017 - 2020 Ford F-150, 2018 - 2018 Lincoln Navigator, 2019 - 2021 Lincoln Navigator, 2017 - 2022 Ford GT, 2018 - 2021 Ford Expedition
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
Installation PositionFront Side
ColorBlack
item #1002R2R5
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6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC1084
A-Premium®Part # APIC1084
6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC1084
4.6550 Reviews
$94.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Fits 2015 - 2017 Ford Expedition, 2015 - 2017 Lincoln Navigator, 2015 - 2024 Ford Transit-250, 2013 - 2019 Ford Explorer, 2018 - 2019 Ford Police Interceptor Sedan, 2013 - 2016 Lincoln MKS, 2015 - 2024 Ford Transit-150, 2015 - 2024 Ford Transit-350 HD, 2015 - 2021 Ford Transit-350, 2014 - 2019 Ford Police Interceptor Utility, 2013 - 2019 Lincoln MKT, 2013 - 2017 Ford Police Interceptor Sedan, 2013 - 2019 Ford Flex, 2011 - 2016 Ford F-150, 2013 - 2016 Ford Taurus
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
ColorYellow
item #10026HH6
Note
This item fits the V6 3.5L model.
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6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC1060
A-Premium®Part # APIC1060
6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC1060
4.6550 Reviews
$93.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015 - 2024 Ford Transit-250, 2015 - 2017 Lincoln Navigator, 2015 - 2024 Ford Transit-150, 2013 - 2019 Lincoln MKT, 2015 - 2021 Ford Transit-350, 2013 - 2019 Ford Explorer, 2011 - 2016 Ford F-150, 2015 - 2017 Ford Expedition, 2015 - 2024 Ford Transit-350 HD, 2013 - 2016 Lincoln MKS, 2013 - 2019 Ford Flex, 2014 - 2019 Ford Police Interceptor Utility, 2013 - 2016 Ford Taurus, 2013 - 2017 Ford Police Interceptor Sedan, 2018 - 2019 Ford Police Interceptor Sedan
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
ColorRed
Part interchange
BL3Z12029A, BL3Z12029B, BL3Z12029C, 6736300, C1814, DG548, DG549, E1146, 
...View more
item #10020Q3R
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6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC0996
A-Premium®Part # APIC0996
6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC0996
4.6550 Reviews
$88.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015 - 2017 Ford Expedition, 2015 - 2017 Lincoln Navigator, 2015 - 2024 Ford Transit-250, 2013 - 2019 Ford Explorer, 2018 - 2019 Ford Police Interceptor Sedan, 2013 - 2016 Lincoln MKS, 2015 - 2024 Ford Transit-150, 2015 - 2024 Ford Transit-350 HD, 2015 - 2021 Ford Transit-350, 2014 - 2019 Ford Police Interceptor Utility, 2013 - 2019 Lincoln MKT, 2013 - 2017 Ford Police Interceptor Sedan, 2013 - 2019 Ford Flex, 2011 - 2016 Ford F-150, 2013 - 2016 Ford Taurus
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
ColorBlue
Part interchange
BL3Z12029A, BL3Z12029B, BL3Z12029C, 6736300, C1814, DG548, DG549, E1146, 
...View more
item #10020NUA
Show less
Delphi GN10892 Ignition Coil
DelphiPart # GN10892
Delphi GN10892 Ignition Coil
51 Reviews
$54.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2017 Ford F-150, 2017-2022 Ford GT, 2018-2020 Ford F-150, 2018-2021 Ford Expedition, 2018-2022 Lincoln Navigator
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Part interchange
GN10892, E1326, HL3Z 12029-A, HL3Z 12029-D, IC933, UF826, EBC1337, C50056DL
item #1001WDG6
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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: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Part interchange
GN10638, 5C1871, C1814, E1146, 921-2146, 36-8234, 6736300, BL3Z 12029-C, 
...View more
item #1001W8HG
Show less
6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC0088
A-Premium®Part # APIC0088
6 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC0088
4.6550 Reviews
$106.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015 - 2017 Ford Expedition, 2015 - 2017 Lincoln Navigator, 2018 - 2019 Ford Police Interceptor Sedan, 2015 - 2024 Ford Transit-250, 2013 - 2019 Ford Explorer, 2014 - 2019 Ford Police Interceptor Utility, 2013 - 2016 Lincoln MKS, 2015 - 2024 Ford Transit-150, 2015 - 2021 Ford Transit-350, 2015 - 2024 Ford Transit-350 HD, 2013 - 2017 Ford Police Interceptor Sedan, 2013 - 2019 Lincoln MKT, 2013 - 2019 Ford Flex, 2011 - 2016 Ford F-150, 2013 - 2016 Ford Taurus
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity6
Item LocatedUnited States
Installation PositionFront Side
ColorBlack
item #1002QSHR
Show less
1 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC0087
A-Premium®Part # APIC0087
1 pc Ignition Coil | 3-Pin Terminal | A-Premium APIC0087
4.6550 Reviews
$28.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015 - 2024 Ford Transit-250, 2015 - 2017 Lincoln Navigator, 2015 - 2024 Ford Transit-150, 2013 - 2019 Lincoln MKT, 2015 - 2021 Ford Transit-350, 2018 - 2019 Ford Police Interceptor Sedan, 2013 - 2019 Ford Explorer, 2013 - 2017 Ford Police Interceptor Sedan, 2011 - 2016 Ford F-150, 2015 - 2024 Ford Transit-350 HD, 2015 - 2017 Ford Expedition, 2013 - 2016 Lincoln MKS, 2013 - 2019 Ford Flex, 2013 - 2016 Ford Taurus, 2014 - 2019 Ford Police Interceptor Utility
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Installation PositionFront Side
ColorBlack
item #1002QUC6
Show less
1 pc Ignition Coil | 3-Blade Terminal | Aisin ESCFD-00300
AisinPart # ESCFD-00300
1 pc Ignition Coil | 3-Blade Terminal | Aisin ESCFD-00300
4.6550 Reviews
$32.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2015 - 2021 Ford Transit-350, 2011 - 2016 Ford F-150, 2013 - 2017 Ford Police Interceptor Sedan, 2015 - 2024 Ford Transit-350 HD, 2015 - 2024 Ford Transit-250, 2015 - 2017 Lincoln Navigator, 2013 - 2016 Ford Taurus, 2015 - 2017 Ford Expedition, 2013 - 2019 Ford Flex, 2013 - 2019 Lincoln MKT, 2018 - 2019 Ford Police Interceptor Sedan, 2014 - 2019 Ford Police Interceptor Utility, 2013 - 2016 Lincoln MKS, 2013 - 2019 Ford Explorer, 2015 - 2024 Ford Transit-150
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
Part interchange
BL3Z12029A, BL3Z12029B, BL3Z12029C
ConditionNew
item #10186KV6
Show less
Denso 673-6300 Ignition Coil
DensoPart # 673-6300
Denso 673-6300 Ignition Coil
4.523 Reviews
$92.99
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: 2022 Ford Expedition
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-6300, C-902, IC749, U5200, BL3Z 12029-B, BL3Z 12029-C, GN10638, UF646, 
...View more
item #1002H8DU
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.