How much are spark plugs for an Acura?

Across Acura models, spark plugs typically run from about $2 to $20 per plug, depending on the type. A full set usually costs anywhere from roughly $8 to $160 in parts, and labor to replace them can range from about $100 to $300 depending on engine complexity and local rates.

Pricing factors that affect Acura spark plugs

Prices vary by plug type, brand, and where you buy. Acura models use copper, platinum, or iridium plugs, with OEM or high-quality aftermarket options affecting both upfront cost and longevity.

Common plug types you’ll encounter

Plugs come in copper, platinum, and iridium. Copper plugs are the cheapest but wear faster; platinum and iridium plugs last longer and usually cost more per plug.

• Copper plugs: typically $2–$5 each


• Platinum plugs: typically $4–$12 each


• Iridium plugs: typically $8–$20 each

Prices can vary by brand and compatibility, so always verify the correct part for your specific Acura model and engine.

Estimated parts cost by engine configuration

Engine size and the number of cylinders determine how many plugs you need and influence the total parts bill. The following ranges are typical for common Acura configurations.

Plug counts and corresponding parts costs

Typical Acura engine layouts:

• 4-cylinder engines (common in models like ILX or base TLX): 4 spark plugs


• V6 engines (found in many MDX, TLX variants, and RLX): 6 spark plugs


• V8 engines are uncommon in recent Acura lineups; most performance variants use V6 configurations

Estimated parts costs for a full set:

• 4-cylinder: about $8–$80 for copper/platinum/iridium options


• V6: about $24–$120 for typical plug types


• Other configurations: roughly $32–$160 depending on technology and brand

Labor costs to replace spark plugs vary by vehicle access and regional rates; expect roughly $80–$250 for a 4-cylinder and higher for more complex engines.

Where to buy spark plugs and how to save

Shopping smart can save money while ensuring you get the right plugs for your Acura. Consider both price and quality when choosing parts.

Options and saving tips

Use reputable retailers and verify compatibility with your exact Acura model and engine code. Compare OEM options with trusted aftermarket brands to balance cost and longevity.

• Shop around at auto parts stores (in-store or online) to compare prices for NGK, Denso, Bosch, and OEM Acura plugs


• Buy a full set rather than individual plugs to simplify installation and often save per-plug cost


• Check the correct heat range and gap specification for your model; many plugs come pre-gapped but it’s wise to confirm


• Consider specialty bundles that include plugs and related gaskets or anti-seize/solder compounds if recommended by Acura

In summary, choosing the right type and sourcing from reputable retailers can optimize cost and performance without compromising reliability.

Summary

For Acura vehicles, spark plug pricing centers on plug type and engine layout. Copper plugs are the cheapest, while platinum and iridium options cost more but last longer. A four-cylinder Acura often requires four plugs, whereas six-cylinder models need six, with total parts costs typically ranging from about $8 to $160 for a full set. Labor adds additional cost, generally between $100 and $300 depending on engine accessibility and local rates. Always verify compatibility with your exact model and follow the manufacturer’s replacement interval guidelines to maintain performance and efficiency.

How often should I replace spark plugs on my Acura?

every 30,000 miles
Experts generally recommend replacing spark plugs every 30,000 miles. But, how often are spark plugs changed may vary depending on your exact model.

Can I drive my car with bad spark plugs?

You can drive with bad spark plugs, but it's not recommended and should only be for a short distance to a repair shop. Driving with bad plugs can lead to decreased fuel efficiency, rough idling, and a risk of engine misfires that could cause more significant and costly damage, particularly to the catalytic converter. It's best to replace them as soon as possible to avoid these issues. 
Risks of driving with bad spark plugs

• Engine misfires: This can cause a jerky or sluggish feel, especially during acceleration. 
• Poor fuel economy: Incomplete combustion means your engine is using more gas than it should. 
• Check engine light: A misfiring engine is a common trigger for the check engine light to come on. 
• Damage to other components: Continued driving can send unburnt fuel into the catalytic converter, leading to costly damage to this component. 

What to do if you must drive

• Drive gently: Avoid hard acceleration and heavy loads. 
• Drive a short distance: Get to a mechanic or parts store as quickly as you can. 
• Consider a temporary fix (if a plug is physically blown out): If a spark plug has blown out of the cylinder, and you are unable to drive to a shop, some mechanics suggest unplugging the fuel injector for that cylinder and driving slowly. However, this should be done with caution and is a temporary measure to get you to a shop. 

What to do instead

• Replace the spark plugs immediately: If you notice symptoms like poor acceleration, rough idle, or a check engine light, get your spark plugs replaced promptly. 
• Address the issue: Don't let bad spark plugs "wait" because the potential cost of repairing damage from driving on them will far exceed the cost of replacing the plugs themselves. 

How much does it cost to replace spark plugs in Acura TL?

The cost to replace Acura TL spark plugs ranges from about $500 to over $1000, depending on the vehicle's model year and engine, and whether you go to a dealership or a private shop. DIY replacement can significantly lower the cost, with parts for a set of high-quality iridium plugs costing around $50-$150, although labor can be more difficult due to the engine's design. 
This video explains what to consider when replacing spark plugs: 58sTalkingTechTrendsYouTube · Mar 12, 2025
Factors affecting the cost

• Vehicle model and year: Newer or more complex engines may cost more to service. 
• Labor rates: Dealerships will typically have higher labor costs than independent mechanics. 
• Difficulty of labor: Accessing the spark plugs in some Acura TL models can be challenging due to their location under the engine manifold, which increases labor time and cost. 
• Spark plug type: The type of plug (e.g., iridium, platinum) will affect the price of the parts. Modern Acura models use iridium plugs, which are more expensive but last longer. 

Cost breakdown

• Parts: High-quality iridium spark plugs can cost between $50 and $150 for a full set, depending on the brand and specific model. 
• Labor: The cost of labor varies widely. For a 2009 Acura TL, professional replacement can range from approximately $713 to $1019. 
• DIY: If you have the necessary tools and skills, you can save money by replacing the plugs yourself. The cost would primarily be for the parts and any new tools you need, which can be under $150. 

How much should 4 spark plugs cost?

You can pay between $16 and $100 for a set of spark plugs, depending on the type of plugs you need and the number of cylinders your engine has. And when figuring out the price, it helps to remember that some specialty engines use two spark plugs per cylinder.