How Much Does Spark Plug Replacement Cost in Idaho?
Idaho pricing is near the national average. Updated for 2026.
Spark Plug Replacement Pricing in Idaho
In Idaho, the average cost for spark plug replacement is $184 for all plugs, which is 8% lower than the national average of $200. Most Idaho residents pay between $55 and $414.
Idaho has costs that track closely with the national average, though prices can still vary between urban and rural areas within the state.
Spark plugs ignite the air-fuel mixture in your engine. Worn plugs cause misfires, rough idle, poor fuel economy, and hard starting. Most vehicles have 4-8 spark plugs depending on engine size.
Idaho vs National Average
What Affects Spark Plug Replacement Cost in Idaho?
Engine
4-cylinder: $60-$200. V6: $150-$300. V8: $200-$450
Plug type
Copper: $2-$5 each. Platinum: $5-$15 each. Iridium: $8-$20 each. Double platinum: $10-$25 each
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💡 Tips to Save on Spark Plug Replacement in Idaho
- 1.DIY is straightforward on most 4-cylinder engines with basic tools
- 2.Iridium or platinum plugs cost more but last 60,000-100,000 miles
- 3.Don't pay for premium plugs if your car only needs copper
- 4.Bundle with other ignition maintenance (wires, coils) for labor savings
📈 Spark Plug Replacement in Idaho Cost Trends (2020–2024)
Prices have increased +18.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $155 | — |
| 2021 | $162 | +4.5% |
| 2022 | $173 | +6.8% |
| 2023 | $178 | +2.9% |
| 2024 | $184 | +3.4% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Spark Plug Replacement in Idaho
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Frequently Asked Questions
How often should spark plugs be replaced?
Copper plugs every 20,000-30,000 miles. Platinum or iridium plugs every 60,000-100,000 miles. Check your owner's manual for your car's specific interval.
Spark Plug Replacement Cost in Other States
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