Even though spark plugs are little, they are quite important for how well your car runs. They light the fuel-air mixture in the cylinders of your engine, which helps your car start and run smoothly. They wear down over time, but replacing them can make your car go faster, use less gas, and stop misfires. But how much will it cost to replace spark plugs in 2026? Here’s a breakdown to help you plan your budget and know what to expect.
What Affects Spark Plug Replacement Costs
There are a number of things that affect how much you’ll pay for spark plugs and labor:
- The make and type of the car: Luxury and performance cars frequently need more expensive spark plugs and more time to work on.
- Type of spark plug: Basic copper plugs are cheaper than iridium or platinum plugs that last longer.
- Ease of access to the engine: For some engines, plugs are easy to get to. On some, they are hidden under parts, which makes the job take longer.
- Service provider: Dealerships normally charge more than businesses that aren’t part of a chain.
The Average Cost of Spark Plugs in 2026
Most passenger cars’ spark plug replacements cost between $150 and $400 on average in 2026.
- Parts: $60 to $200. Standard copper plugs are on the cheap end, and iridium or platinum plugs are on the high end.
- Labor: $90 to $200—The amount of time it takes to do the work depends on the configuration of your engine and the pricing at shops in your area.
For some cars, especially those that don’t need repairs as often, the cost of replacement parts may be closer to the lower end of the range. High-performance and European imports can cost closer to or even higher than the high end.
When to Get New Spark Plugs
Most manufacturers say that you should change your spark plugs every 30,000 to 100,000 miles, depending on the type of plug and engine architecture. Some signs that you need new plugs are:
- Rough idling or engine problems
- Hard time getting the engine to start
- Less efficient use of fuel
- Hesitation when speeding up
- Strange sounds coming from the engine
- If your check engine light turns on and you see any of these problems, a quick checkup can save you gas and keep you from having to pay for more expensive repairs later.
Picking the Right Spark Plugs
There are differences between spark plugs. In 2026, some common types are:
- Copper: Cheap, but wears out the fastest
- Platinum lasts longer than copper and has a good mix of performance and cost.
- Iridium: lasts the longest and works the finest, making it perfect for current engines.
Based on how you drive and the specs of your car, your technician can suggest the optimum sort of plug.
Keep Your Engine Running Well
One of the best ways to maintain your car running well and reliably is to change the spark plugs. If you don’t replace worn plugs, your car may not work as well and you’ll have to pay more for gas.
Spark Into Action
Are you ready to give your engine the tune-up it needs? Heath’s Airport Auto will test and replace your spark plugs professionally and at a price you can trust. Call us today to set up your appointment and keep your car in great shape!
