Replacing a single ignition coil on a Honda Accord typically costs about $100-$250, while replacing all four coils on a four-cylinder engine commonly runs $400-$900, depending on parts and labor rates.
Ignition coils are a key part of the engine’s ignition system, delivering the high voltage needed to fire the spark plugs. When coils fail, you may notice rough idling, misfires, reduced power, or a check engine light. Costs vary by year and engine type, coil quality (OEM vs aftermarket), and local labor rates, so quotes can differ widely by region and shop.
Costs and what influences them
Costs are driven by how many coils your engine uses, the type of coils chosen (OEM vs aftermarket), regional labor rates, and whether other components (like spark plugs) are replaced at the same time. The list below outlines typical cost components.
- Number of coils: A typical four-cylinder Accord uses one coil per cylinder (four coils total). Some engines or variants may use more coils.
- Coil type and price: Aftermarket or budget coil-on-plug units can range from about $15-$60 per coil, while OEM or higher-spec aftermarket coils usually run $60-$120 per coil.
- Labor time and rate: Replacing coils commonly takes 0.5-1.0 hour per coil, depending on access. Regional shop rates often run $90-$150 per hour.
- Diagnostics and shop fees: Some shops charge a diagnostic fee or code scan if you’re unsure which coil is failing; expect roughly $0-$100 depending on policy.
- Optional spark plug replacement: If spark plugs are due for replacement, many technicians will do them at the same time, adding about $60-$120 per plug plus labor.
These factors collectively determine the total. You might see a single-coil replacement quoted around $100-$250; replacing all four coils commonly ranges from about $400-$900, including parts and labor. Prices can be higher at dealerships or in areas with high labor rates, and lower with independent shops or promotions.
Part-by-part price and time ranges
Below is a practical breakdown you can discuss with your shop. The figures assume a four-cylinder Accord; six-cylinder variants will require more coils and higher costs.
- Single-coil replacement (parts and labor): $100-$250
- Full set (four coils) replacement: $400-$900
- Spark plugs (optional, if replaced): $60-$120 per plug plus labor when done at the same visit
- Diagnostic/test drive: often included in labor or charged as a small upfront fee
In general, you’ll save money per coil if you replace them all at once, provided your maintenance budget and timing allow. Ask for a written estimate detailing parts, labor, and any recommended spark plug changes.
What to expect during the service
Most Honda Accords with coil-on-plug ignition allow replacement without major disassembly. A typical service includes diagnosing misfire codes, identifying failed coil(s), removing the ignition coil packs, installing new units, rechecking spark plugs if needed, and performing a test drive plus a code check.
Symptoms that may indicate a failed ignition coil
Rough idle, engine misfires, loss of power, reduced fuel efficiency, or a check engine light with misfire codes (such as P0300 or P0351-P0354) can signal a faulty coil. A professional scan helps pinpoint the exact cylinder.
Maintenance notes for Honda Accord owners
Even after coil replacement, keeping up with spark plug maintenance and following the recommended maintenance schedule for your engine helps prevent future misfires. Depending on the engine, spark plugs may need replacement every 60,000 to 105,000 miles.
Summary
Costs to replace ignition coils on a Honda Accord vary with engine type, parts choice, and labor rates. A single-coil replacement is typically around $100-$250, while replacing all four coils commonly runs $400-$900. Always get a written estimate that separates parts and labor, and consider replacing spark plugs if due. Regular maintenance can reduce the likelihood of future coil failures.