Ignition coil replacement costs $238 to $320 on average in the United States. RepairPal reports $164 to $211 for parts and $74 to $109 for labor. Your final bill can land well above or below that range. Why? Your engine layout, coil count, and shop access all shift the price. Read on, and you will know which questions to ask before you approve any repair.
How Much Does Ignition Coil Replacement Cost?
Treat the national average as a rough guide, not a quote. RepairPal excludes taxes, fees, and location adjustments. Other sources report $230 to $330 per coil. Import and luxury models can reach $690 when parts are exclusive.
Exact-year estimates show how far one vehicle can sit from another.
| Vehicle | Parts | Labor | Published total |
| 2018 Honda Civic | 106–108 | 61–90 | 167–198 |
| 2018 Ford F-150 | About $133 | 61–90 | 194–222 |
Both pages carry a September 3, 2026 update. Neither names an engine variant or a full-set scope. Do you want a fair comparison? Ask each shop to list your VIN, engine, and coil count on the written estimate.
A single coil costs $35 to $300 or more, based on your OEM or aftermarket choice. A full set of coils and plugs runs $350 to $1,000 or more. Cylinder count and shop rates set that total.
What Does an Ignition Coil Do?
An ignition coil turns 12V battery current into a high-voltage surge. The spark plug needs that surge to fire. No surge means no spark. No spark means a misfire in that cylinder.
Which type does your engine use? The answer shapes both part price and labor time.
| Coil type | How it works | Common use |
| Coil-on-plug (COP) | One coil sits on each spark plug | Most modern fuel-injected engines |
| Coil pack | Several coils share one block and feed plugs through cables | Distributorless systems, 1990s–2010s |
| Pencil or blade coil | Slim unit that slides into a recessed plug well | Compact and DOHC engines |
| Canister coil | One coil feeds a mechanical distributor | Classic and older vehicles |
DENSO advises you to match the part by VIN or original-equipment part number. Coil shape and connector vary widely. A quote that says only “ignition coil” leaves too much open. Ask the shop which part it replaces and how many cylinders that part serves.
What Are the Signs of a Failing Ignition Coil?
Your car gives early clues. Watch for the signs below.
- A check engine light that stays on or blinks
- Misfire codes from P0300 to P0308
- Rough idle, stumbles, or power loss
- Hard starts and poor fuel economy
- Fuel odor or exhaust backfire
Coils often fail between 80,000 and 100,000 miles. Does your car sit near that mark? Expect trouble soon, and test the coils early.
Can You Drive With a Bad Ignition Coil?
A check engine light that blinks needs prompt help. The 2022 Ram 2500/3500 owner’s manual states that a blinking indicator can signal power loss or catalytic converter damage. A converter costs far more than a coil. Read your own manual and call a shop quickly.
Tell the technician when the engine first ran rough. Also say if the light stays on or blinks. That detail speeds up diagnosis.
Does a P0351 Code Prove the Coil Is Bad?
No. A code points to a circuit, not a verdict. DENSO lists other triggers, such as harness faults and loose connectors. A code is a reason to test.
RepairPal advises you to test the suspect coil and replace it only if it fails. Ask the shop which test confirmed the failure. That one question can save you the cost of an unneeded part.
Should You Replace One Ignition Coil or All of Them?
Start from the tested fault. Then price the extras on a separate line. Ask the shop for four numbers.
| Entry | What to record |
| B | Total for the confirmed repair |
| P | Added parts cost for extra coils |
| L | Added labor while access is open |
| F | Added fees or tax |
Your expanded total equals B + P + L + F. Count only charges that B leaves out. Skip the shortcut of multiplying one coil price by your cylinder count. That math ignores shared labor.
A set makes sense when the technician cites a tested fault, visible wear, or access you would otherwise pay for twice. Does the shop give none of those reasons? Choose the confirmed repair alone.
Why Does Labor Cost More on Some Engines?
Access sets the price. DENSO notes that some engines need intake manifold removal before you can reach the coils. Labor runs $61 to $109 per coil across the estimates above, and manifold work pushes it higher. Ask if the quote covers removal, new gaskets, and reassembly.
Do your spark plugs come due soon? Plugs often share the same disassembly. Request a combined estimate that shows the added plug cost. You then pay for access once.
Why Did the Coil Fail in the First Place?
A new coil fails again if the cause stays. DENSO tells technicians to check the items below.
- Cracks and carbon tracks on the old coil
- Damaged harness or connectors
- Weak battery supply
- Oil or water in the plug well
- Plug gaps that are too wide
A wide gap raises the voltage the coil must deliver. Worn plugs can shorten coil life. Ask the shop to show you where the damage began. Then request a price for that fix next to the coil repair. Keep optional maintenance on a separate line.
Can You Replace an Ignition Coil Yourself?
Often, yes. Coil-on-plug designs are the easiest case when the coils sit in plain view. You can save the $74 to $109 labor charge per coil. Follow the steps below.
- Confirm the failed cylinder with a code reader.
- Match the part to your VIN or original part number.
- Let the engine cool, then unplug the connector.
- Remove the hold-down bolt and pull the coil straight up.
- Check the plug well for oil. Fix leaks before you fit the new coil.
- Install the new coil, reconnect it, and clear the codes.
- Start the engine and confirm it runs smooth.
Engines that hide coils under the intake manifold belong in a shop. Do you own the tools and the time? Weigh both before you start.
Where Can You Buy Ignition Coils?
AutoZone, Advance Auto Parts, and O’Reilly Auto Parts stock coil-on-plug units, coil packs, and canister styles. Most stores offer same-day pickup. Specialty vendors cover niche needs. Aceon sells OE-style coils for a wide range of vehicles. FireCore Performance sells coils with higher voltage capacity than standard lines.
Are Cheap Ignition Coils Worth It?
Price alone does not prove quality. RepairPal recommends parts that meet original-equipment standards or better. Choose an application-correct part with a named brand and a clear warranty. Most daily drivers need an OE-grade coil and no more.
How Can You Lower Your Ignition Coil Bill?
Use this checklist at the counter.
- Ask for the test result that confirms the failure.
- Request a written estimate with VIN, engine, and part count.
- Compare shops on the same access scope.
- Ask for the added price of extra coils.
- Combine plug work only when it shares the labor.
- Keep the old part for inspection.
FAQs:
How much does a single ignition coil cost?
The part alone costs $35 to $300 or more. Your vehicle and your OEM or aftermarket choice set the price. A 2018 Honda Civic coil costs $106 to $108. A 2018 Ford F-150 coil costs about $133.
How much does labor cost to replace an ignition coil?
Expect $61 to $109 per coil. Access changes the final number. Ask if your quote includes manifold removal.
How much does it cost to replace all ignition coils?
A full set of coils and plugs typically costs $350 to $1,000 or more. Cylinder count and shop rates drive the total. Ask the shop for the added price of extra coils while the engine is open.
Do you need to replace one ignition coil or all of them?
Replace the tested coil first. Price extra coils separately. A set makes sense when the technician cites another fault, visible wear, or shared access.
What are the symptoms of a bad ignition coil?
Look for a check engine light, misfire codes, rough idle, power loss, hard starts, and poor fuel economy. Fuel odor and exhaust backfire also appear.
Final Thoughts:
Ignition coil replacement costs $238 to $320 on average, based on RepairPal’s national estimate. Parts account for $164 to $211 of the total cost, while labor adds another $74 to $109. Your actual quote may be higher or lower depending on your engine layout, the number of ignition coils, and how easily technicians can access them.
Act early when your check engine light comes on. A faulty ignition coil rarely fixes itself. Continued engine misfires can damage the catalytic converter, leading to a much more expensive repair. Want to avoid that costly problem? Schedule a diagnostic inspection as soon as the warning light appears.
Are you comfortable working under the hood? Replacing a coil-on-plug ignition coil yourself can save you $74 to $109 in labor per coil. However, if your engine has coils tucked beneath the intake manifold, it’s best to leave the job to a trusted mechanic.
CarRevix is an automotive information platform that helps drivers understand car maintenance, repairs, common vehicle problems, and replacement costs. It publishes practical, easy-to-follow guides covering engine issues, brakes, transmission, tires, sensors, and other essential automotive topics. Its goal is to help car owners make informed repair decisions, understand maintenance costs, and keep their vehicles safe, reliable, and running smoothly