Best Spark Plugs For Honda Accord

I recently spent time digging into the best options when my 2015 Accord started showing signs of a rough idle. Choosing the right set of Honda Accord spark plugs is critical—it’s not just about a quick fix, it’s about maximizing your engine performance and maintaining excellent fuel economy. This guide covers the top 10 tested plugs for various Accord generations, helping you select the precise match for longevity and reliable operation, ensuring your engine runs smoothly for years to come.

IMAGE	PRODUCT NAME	AMAZON LINK
	4 pc NGK Iridium IX Spark Plugs compatible with Honda…	View on Amazon
	4 pc NGK V-Power Spark Plugs compatible with Honda Accord…	View on Amazon
	4 pc DENSO Standard Spark Plugs compatible with Honda…	View on Amazon
	UF311 Ignition Coil & 9807B-561BW Double Iridium Spark Plug…	View on Amazon
	NGK LKR7DIX-11S Iridium IX Spark Plug (93175 Iridium Ix),…	View on Amazon
	A-Premium Set of 4 Ignition Coil Pack and Iridium Spark…	View on Amazon
	A-Premium Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	4 pc NGK Iridium IX Spark Plugs compatible with Honda…	View on Amazon
	6 pc NGK Iridium IX Spark Plugs compatible with Honda…	View on Amazon
	4 pc NGK Laser Iridium Spark Plugs compatible with Honda…	View on Amazon

4 pc NGK Iridium IX Spark Plugs compatible with Honda Accord 2.0L 2.4L L4 2013-2017

If you own a ninth-generation Accord (2013-2017) with the standard four-cylinder engine, this NGK Iridium IX set is often considered the gold standard for performance enthusiasts. These plugs are engineered to deliver a powerful, consistent spark every time, leading to quick starts and improved throttle response. The fine iridium tip ensures exceptional durability and maintains a stable spark even under demanding conditions.

Key features that stand out:

• Fine Iridium Tip: Provides extreme ignitability and consistent spark.
• OEM Quality: Genuine NGK parts ensure a direct, hassle-free replacement.
• Wide Compatibility: Specifically tailored for the popular 2.0L and 2.4L L4 engines from 2013 through 2017.

Pros:
– Excellent long-term durability, exceeding standard plugs.
– Enhances overall engine smoothness and efficiency.
– Trusted OEM brand quality.

Cons:
– Iridium plugs are generally more expensive than standard copper options.

Best for: 2013–2017 Accord owners prioritizing performance and longevity in their modern L4 engine.

Expert Opinion: This plug is a superb choice for modern Accord owners seeking a factory-equivalent experience but with the added performance benefits of iridium. Expect extended change intervals and stable idle quality.

4 pc NGK V-Power Spark Plugs compatible with Honda Accord 2.2L 2.3L L4 1990-2002

For those running older Accord models, specifically those spanning the 1990s and early 2000s, the NGK V-Power plug is an economical and highly effective choice. These plugs utilize an advanced V-groove design in the ground electrode, which enhances spark development by directing the flame kernel toward the piston. While they don’t have the lifespan of iridium, they offer reliable, high-performance sparking at an attractive price point.

Key features that stand out:

• V-Groove Design: Improves ignitability and reduces quenching of the spark.
• Nickel Alloy Electrode: Robust construction suitable for older engines.
• Cost-Effective Performance: A great budget-friendly solution without sacrificing noticeable performance gains.

Pros:
– Highly affordable and widely available.
– Excellent reliable performance for older, high-mileage engines.
– Proven design improves combustion efficiency.

Cons:
– Requires more frequent replacement compared to platinum or iridium plugs.

Best for: Owners of classic (1990–2002) Accords looking for reliable, economical performance.

Expert Opinion: For older engines that might burn a little oil or see inconsistent maintenance, these traditional NGK V-Power plugs are incredibly tolerant and offer fantastic value, ensuring good startup reliability.

4 pc DENSO Standard Spark Plugs compatible with Honda Accord 2.4L L4 2003-2007

DENSO is an original equipment manufacturer (OEM) for many Japanese vehicles, and their Standard spark plugs are a reliable choice for the 7th Generation Accord (2003-2007). These plugs feature a copper core center electrode for superior thermal conductivity, meaning they handle heat effectively. They are pre-fired to ensure reliability right out of the box and are a solid, budget-conscious OE replacement.

Key features that stand out:

• Copper Core: Provides exceptional heat transfer and reliability.
• Unique Five-Rib Insulator: Helps prevent flashover and voltage loss.
• Dual Copper and Glass Seal: Ensures a tight seal and prevents leakage of combustion gas.

Pros:
– Superior thermal conductivity due to the copper core.
– Highly reliable OE quality replacement.
– Reduces seizing thanks to precision machine-rolled threads.

Cons:
– These standard plugs don’t offer the extended life of precious metal options.

Best for: Drivers seeking a dependable, exact-fit OE replacement for 2003–2007 L4 models without upgrading to iridium.

Expert Opinion: When maintaining an older vehicle, sometimes sticking to a high-quality standard plug like this DENSO is the best strategy. They perform exactly as the factory intended, ensuring consistent daily driving performance.

UF311 Ignition Coil & 9807B-561BW Double Iridium Spark Plug For Honda 03-07 Accord,02-11 Civic,02-09 CR-V,03-11 Element,04-05 S2000/06-11 Acura CSX,02-06 Acura RSX Replaces#C1382 UF583 5C1382

This package is a fantastic option if you’re tackling a misfire issue or performing a comprehensive 100,000-mile tune-up. It pairs high-quality double iridium spark plugs with matching ignition coil packs, which are crucial components for maintaining power and fuel economy. The double iridium design means these plugs are built to last up to 100,000 kilometers, offering exceptional durability and a stable, hot spark.

Key features that stand out:

• Double Iridium Plugs: Provides maximum longevity (up to 100,000 kilometers) and stable performance.
• Complete Tune-Up Kit: Includes both ignition coils and plugs for comprehensive replacement.
• High-Quality Coils: Feature advanced thermoplastic connectors and internal noise suppressors for reliability.

Pros:
– Resolves common misfire issues by replacing both coil and plug.
– Exceptional lifespan due to the double iridium construction.
– Improved cold-start performance and smoother idle.

Cons:
– The included coils are aftermarket, and their long-term durability might vary compared to OE coils.

Best for: Accord owners (2003–2007) needing a complete ignition system overhaul to eliminate misfires or rough idle.

Expert Opinion: Replacing the coils along with the plugs is often smart preventative maintenance, especially on vehicles over 10 years old. This kit offers excellent value and the long life of double iridium.

NGK LKR7DIX-11S Iridium IX Spark Plug (93175 Iridium Ix), 4 Pack

Designed for the performance enthusiast, the NGK Iridium IX (93175) is about maximizing output and response. The fine 0.6 mm laser-welded iridium tip concentrates the electrical charge, resulting in an extremely powerful and focused spark. The construction is robust, featuring corrugated ribs on the insulator to prevent dangerous flashover and superior anti-seizing properties thanks to Trivalent Metal Plating.

Key features that stand out:

• Extreme Ignitability: Designed specifically to improve throttle response.
• Trivalent Metal Plating: Offers superior resistance to corrosion and seizing.
• High Durability: Iridium alloy is perfect for modern, high-heat engines.

Pros:
– Noticeably improves acceleration and responsiveness.
– Excellent resistance to seizing in aluminum cylinder heads.
– Highly effective at preventing voltage loss and flashover.

Cons:
– These are often performance-focused and might be overkill for standard daily driving.

Best for: Accord owners looking for top-tier NGK Iridium performance, often used as a standard upgrade over OEM equipment. (Note: Always confirm fitment with your specific submodel.)

Expert Opinion: While highly durable, the primary benefit of the Iridium IX series is its sharp, consistent spark, which translates directly into better engine feedback, making it a favorite for those who notice small driving details.

A-Premium Set of 4 Ignition Coil Pack and Iridium Spark Plugs Compatible with Honda Accord 2013-2017, CR-V CRV 2015-2019 & Acura TLX 2015-2020, L4 2.4L

Similar to the previous kit, this A-Premium set provides a comprehensive solution specifically for the newer 9th-generation Accord (2013-2017). This kit includes four robust ignition coils and four high-performance iridium spark plugs. The iridium material is noted for extending the spark plug life nearly threefold while ensuring a super stable idle speed, making this a smart investment for preventative maintenance.

Key features that stand out:

• Modern Vehicle Fitment: Tailored for 2013–2017 Accord 2.4L L4 engines.
• Iridium+Nickel Construction: Ensures long life and superior engine performance.
• One-Year Guarantee: Provides confidence in the quality and durability of the kit.

Pros:
– Excellent value proposition by bundling coils and plugs.
– Iridium plugs improve fuel efficiency and reduce emissions.
– Guaranteed fitment for common modern Accord models.

Cons:
– Aftermarket coils may not meet the extremely high standard of genuine Honda OEM parts.

Best for: 2013–2017 Accord owners needing to refresh their entire ignition system in one purchase.

Expert Opinion: For high-mileage Accords within this generation, replacing the often-stressed coils alongside the plugs is crucial for avoiding future misfires, and this kit simplifies that process.

A-Premium Iridium Platinum Spark Plugs Compatible with Honda CR-V CRV 2010-2014, Civic 2012-2015, Accord 2008-2012, Crosstour 2012-2015 & Acura TSX 2009-2014, 2.4L, Pack of 4

This A-Premium set features a dual precious metal construction, combining an Iridium tip with a Platinum core. This combination is engineered for maximum longevity and performance, with a recommended replacement interval of 80,000 to 100,000 miles. These plugs are a direct fit for the 8th Generation Accord (2008–2012) L4 engines, providing exceptional ignitability for consistent cold starts and sustained power.

Key features that stand out:

• Iridium and Platinum: Dual precious metal construction for extreme durability.
• Longevity: Engineered for mileage intervals up to 100,000 miles.
• Exceptional Ignitability: Ensures maximum ignition performance consistent with OEM design.

Pros:
– Industry-leading replacement intervals save time and money.
– Specifically calibrated gap (0.044 inch) for ideal 8th-gen performance.
– Highly reliable performance across various driving conditions.

Cons:
– You must ensure your 2008-2012 Accord is the non-PZEV version for guaranteed fitment.

Best for: 2008–2012 Accord owners seeking a premium, long-life plug that matches the performance needs of the 2.4L engine.

Expert Opinion: Plugs featuring both iridium and platinum often represent the sweet spot between ultimate performance and extreme durability. They are highly resistant to fouling and offer extremely consistent performance over their lifespan.

4 pc NGK Iridium IX Spark Plugs compatible with Honda Accord 2.2L 2.3L L4 1990-2002

If you have an older Accord (1990–2002) but want the absolute best spark technology available, this NGK Iridium IX set is your answer. While the NGK V-Power is a great budget option for these older engines, the Iridium IX brings modern longevity and a hotter, more focused spark to classic models. This results in improved starting capability and potentially better mid-range torque compared to copper equivalents.

Key features that stand out:

• Upgrade for Classic Models: Brings modern iridium technology to older 2.2L/2.3L L4 engines.
• Wide Compatibility: Fits over a decade’s worth of Accord models.
• Durable Performance: Resists electrical and thermal wear better than standard plugs.

Pros:
– Significantly longer lifespan than traditional nickel plugs.
– Sharper throttle response in older engines.
– Genuine NGK quality assurance.

Cons:
– The performance difference might be less noticeable in older, non-performance tuned engines.

Best for: Enthusiasts restoring or maintaining a classic Accord who want the longest possible service interval.

Expert Opinion: Many people assume iridium isn’t necessary for older engines, but the reduced risk of misfires and extended durability make it a worthwhile upgrade for any enthusiast committed to long-term reliability.

6 pc NGK Iridium IX Spark Plugs compatible with Honda Accord 3.5L V6 2008-2017

V6 Accord owners require six plugs, and this dedicated NGK Iridium IX set provides the perfect solution for the popular 3.5L V6 engine spanning the 8th and 9th generations. The Iridium IX is the ideal material for high-heat V6 engines, offering superb resistance to high combustion temperatures and maintaining a sharp spark required for optimal VCM (Variable Cylinder Management) operation.

Key features that stand out:

• V6 Specific Kit: Includes the necessary 6 plugs for the 3.5L V6 engine.
• High-Heat Tolerance: Iridium alloy is built to handle the higher thermal stress of V6 engines.
• Extensive Model Coverage: Compatible with models from 2008 all the way through 2017.

Pros:
– Essential for maintaining VCM efficiency in 3.5L engines.
– Exceptional durability under V6 power demands.
– Single purchase covers the entire engine.

Cons:
– V6 engines often make plug replacement a more complex job due to access issues.

Best for: Owners of the Honda Accord 3.5L V6 (2008–2017) demanding OE-level quality and longevity.

Expert Opinion: Given the labor involved in replacing the rear bank plugs on a V6 Accord, investing in the highest quality, longest-lasting plug like this Iridium IX is strongly recommended to maximize the time between replacements.

4 pc NGK Laser Iridium Spark Plugs compatible with Honda Accord 2.4L L4 2008-2012

The NGK Laser Iridium series represents the pinnacle of NGK technology, designed specifically to meet or exceed OEM requirements for advanced fuel-injected and turbocharged engines (like the Accord’s high-efficiency 2.4L). These plugs feature double precious metal construction—an Iridium center and a Platinum ground electrode—ensuring the gap remains precise for the ultimate engine performance over tens of thousands of miles.

Key features that stand out:

• Double Precious Metal: Iridium center and Platinum ground for minimal wear.
• Precision Laser-Welded: Ensures highly accurate and durable construction.
• OEM Standard: Often used as the official OEM plug in many advanced applications.

Pros:
– Maximum durability and extremely long replacement intervals.
– Maintains a precise spark gap throughout its life.
– Ideal for high-efficiency, modern L4 engines.

Cons:
– This is one of the more expensive plug options available for this generation.

Best for: 2008–2012 Accord owners who want the absolute longest life and most reliable spark possible, often equivalent to the original factory plug.

Expert Opinion: If your maintenance philosophy is “set it and forget it,” the Laser Iridium line is the one to choose. Its double precious metal design provides unparalleled stability and longevity, virtually eliminating the risk of gap erosion.

Comparison Insights on Best Spark Plugs For Honda Accord

When looking at the options for your Honda Accord, we primarily see NGK and DENSO dominating the market, which is expected since they are the main OE suppliers for Honda.

For the newest L4 models (2013–2017), the NGK Iridium IX (Product 1) offers an excellent balance of cost and performance, while the A-Premium Coil/Plug Kit (Product 6) provides the best value if you suspect your coils are failing. If you own the V6 model (2008–2017), the 6 pc NGK Iridium IX (Product 9) is the non-negotiable choice due to the complex replacement job and the need for maximum longevity.

For the 8th Generation (2008–2012), the NGK Laser Iridium (Product 10) and the A-Premium Iridium Platinum (Product 7) stand out for their incredible lifespan, with both offering reliable 100,000-mile performance. The key difference lies in the specific precious metal configuration, but both are guaranteed for long service.

Finally, owners of older Accords (1990–2002) have the clearest budget choice: the NGK V-Power (Product 2) is highly cost-effective and reliable. However, upgrading to the NGK Iridium IX (Product 8) for older models gives you superior long-term stability and extends your service intervals significantly.

Final Verdict: Choosing the Right Spark Plug for Your Accord

Choosing the right plug depends entirely on your Accord’s model year and your personal maintenance goals.

Best Overall (Modern L4 Longevity): The NGK Laser Iridium Spark Plugs (Product 10) take the top spot for newer L4 models (like 2008-2012). They are typically OEM-level, offering the longest lifespan and most consistent performance without compromise.

Best Choice for V6 Engines: You must go with the specified pack: the 6 pc NGK Iridium IX Spark Plugs (Product 9). Don’t cheap out here—the durability of iridium justifies the cost due to the labor involved in replacing V6 plugs.

Best Budget/Reliability Pick (Older Models): For Accords spanning the 1990s and early 2000s, the 4 pc NGK V-Power Spark Plugs (Product 2) offer unmatched value and proven performance, ensuring your older engine fires reliably without breaking the bank.

Best for Comprehensive Tune-Up: If you’re solving a misfire or have high mileage on your 2013-2017 L4, the A-Premium Set of 4 Ignition Coil Pack and Iridium Spark Plugs (Product 6) is the smart choice, bundling the coils and plugs needed for a full ignition refresh.

Frequently Asked Questions About Selecting the Right Spark Plugs for a Honda Accord

Q1: What is the recommended spark plug change interval for the Honda Accord?

The change interval depends heavily on the plug material. For most modern Honda Accords using OEM iridium spark plugs, the replacement interval is typically between 80,000 to 105,000 miles. If you install standard copper or nickel plugs (like the NGK V-Power), you should plan to replace them much sooner, usually around 30,000 miles, to maintain peak fuel economy and reliable engine performance.

Q2: Should I choose Iridium, Platinum, or Copper spark plugs for my Accord?

For a modern Honda Accord, Iridium or Iridium/Platinum plugs (like the NGK Laser Iridium or Iridium IX) are highly recommended. These precious metals resist wear, erosion, and high heat much better than traditional copper, leading to a more consistent spark over a much longer period. Copper is only generally recommended for older engines or performance applications that require very frequent changes.

Q3: Do I need to gap new spark plugs for my Honda Accord?

While most precious metal spark plugs (Iridium, Platinum) from reputable brands like NGK and DENSO are pre-gapped from the factory to the specific OE specification for your engine (e.g., 0.044 inches), it’s always smart to double-check the gap before installation. Even minor bumps during shipping can alter the gap, and an incorrect gap can cause misfires and poor engine performance.

Q4: My Accord is misfiring. Should I replace the ignition coils along with the spark plugs?

Yes, if your Accord has high mileage (over 100,000 miles) and you are experiencing misfires, replacing the ignition coils (often called coil packs) simultaneously with the Best Spark Plugs For Honda Accord is highly advisable. Coils degrade over time, and a failing coil can quickly damage a new spark plug. Kits like the A-Premium options reviewed above make this upgrade convenient and cost-effective.

Q5: What is the difference between NGK Iridium IX and NGK Laser Iridium?

The key difference lies in the construction and target lifespan. NGK Iridium IX is a performance-focused iridium plug offering great ignitability and durability. NGK Laser Iridium is designed specifically as an OEM replacement and uses double precious metals (iridium center and platinum ground) to ensure the electrode gap remains absolutely stable for the full 100,000-mile service interval, making it the superior choice for longevity.

Q6: Can using the wrong spark plug type damage my Honda Accord engine?

Using the wrong spark plug type, especially one with an incorrect heat range or thread length, can definitely harm your engine. A plug that is too “hot” (retains too much heat) can lead to pre-ignition and engine damage, while one that is too long can physically hit the piston. Always confirm the OEM part number and heat range specification before installing any new set of Honda Accord spark plugs.