What this maintenance protects
Correct spark plugs support reliable ignition, combustion, cold starting, emissions control, and protection of threads and ignition components.
Verify the schedule, inspect, service, and record.
- 01VerifySchedule and exact material
- 02Inspect3 condition checks
- 03SafetyReview hazards before service
- 04BudgetFull range · 30 currencies in Budget · not a quote
- 05Service3 vehicle-specific decisions
- 06Record4 details to record
Safety boundary
Protect the cylinder-head threads
Work at the specified engine temperature, prevent debris entry, start threads by hand, and use the exact tightening procedure.
Budget context
Source-backed maintenance estimate
U.S. national parts-and-labor estimate. Engine layout, access, plug count, and diagnosis change the total; location, taxes, fees, and related repairs are excluded.
ECB rates compare currencies, not local service prices.
- 01USD band$288–$399 · per spark-plug service
- 02Compare30 currencies · ECB rates dated 2026-10-05
- CAD CA$410–CA$570
- EUR €255–€360
Show all 30 currency values
- USD $288–$399
- CAD CA$410–CA$570
- EUR €255–€360
- GBP £215–£305
- AUD A$410–A$575
- JPY ¥45,570–¥63,135
- CHF 235–335
- NZD NZ$515–NZ$715
- INR ₹27,730–₹38,425
- MXN MX$5,225–MX$7,245
- CZK 6,285–8,710
- DKK 1,920–2,665
- HUF 94,540–130,985
- PLN 1,125–1,560
- RON 1,370–1,905
- SEK 2,890–4,010
- ISK 35,215–48,790
- NOK 2,765–3,835
- TRY 14,155–19,615
- BRL R$1,435–R$1,990
- CNY CN¥1,930–CN¥2,680
- HKD HK$2,260–HK$3,135
- IDR 5,158,985–7,147,350
- ILS ₪880–₪1,225
- KRW ₩387,065–₩536,250
- MYR 1,175–1,635
- PHP ₱18,045–₱25,010
- SGD 365–515
- THB 9,700–13,445
- ZAR 4,785–6,635
- 03VerifyConfirm vehicle and work scope
- Source 1: Spark Plug Replacement Cost EstimateSource date 2026-09-03 · Retrieved 2026-09-28
Planning range only. Not a quote.
What to inspect
Plug wells, boots, coils, threads, and signs of oil or coolant
Electrode and insulator condition without treating appearance as proof
Misfire data and the cylinder pattern before parts are disturbed
Plan the service for the exact vehicle
- Verify exact plug part, gap policy, interval, access, engine temperature, and torque procedure
- Plan for seals, intake parts, or ignition components that must be removed
- Preserve diagnostic evidence before replacing plugs for a symptom
Specifications and interval
Climate, market, powertrain, equipment, time, mileage, and the manufacturer’s severe-service definition can change the applicable instructions.
Document the work
Date and mileage
Exact plug part and quantity
Cylinder-specific observations
Gap policy, torque source, and post-service misfire check