8 Best Spark Plugs For Honda Civic [Top Picks & Reviews]

Vroom! Vroom! vrom. vom. mmgrrrr.

Let’s try it again.

Vroom! vrom. vommgrrr. Damn it! Is the battery dead again? You ask yourself. Your Honda Civic isn’t starting up for the third time this week. But that’s a new battery sitting under the hood.

The problem might be elsewhere, and it’s high time you fix it. Don’t worry, it’s just a spark plug replacement, and it’s not going to break your bank. A spark plug is a component producing the sparks to fire up your engine and can wear out over time.

In our quest for the best spark plugs for Honda Civic, we realized that though the replacement is easy, finding the right plug is just the opposite. But it’s your lucky day because we have got them listed for you. Enjoy!

8 Best Spark Plugs for Honda Civic Reviews in 2021

With spark plugs coming in all price points and various materials, you may easily get confused and end up with one that does more bad than good. Here are the ones that deliver the right sparks, boosting your engine performance and mileage.

1. NGK BKR7EIX IX Iridium Plug – Editor’s Choice

Our first pick is from the well-renowned brand NGK. They have kept the plug industry on their toes with their continuous strive towards innovation and technology. It tops the list if you are looking for spark plugs for Toyota Corolla or Honda Civic.

The Iridium IX offers a performance of the very top level. Designed for the performance enthusiast, this pocket dynamo will keep your engine running at its max potential. With extreme ignitability, superior anti-fouling, and improved throttle response, your daily engine hiccups and stutters will remain at bay.

This 0.6-millimeter plug comes with an Iridium tip that has been laser welded to perfection, offering you optimum durability and stable sparks. Besides, you won’t be having trouble igniting your engine, thanks to the tapered ground electrode, which does an excellent task in minimizing the electrical quenching effect.

The plug prevents fouling and flashovers with ease as it features a longer insulator nose with corrugated ribs. Thus, the chances of your engine misfires reduce to almost zero. The Iridium IX not only ensures performance but also saves you on gas by eliminating combustion gas leakage with its triple gasket seal design.

It boasts Iridium alloy construction with a high melting point, protecting itself against heat and electrical wear. With corrosion and seizing remaining out of sight, this plug easily takes place among the top Honda Civic spark plugs available in the market right now.

Key Features:

All-round Performance – The plug offers extreme ignitability, superior anti-fouling, and improved throttle response.

Extremely Durable – 0.6-millimeter plug and an Iridium tip ensure durability.

Longer Insulator Nose – The insulator prevents fouling and flashovers with ease.

Triple Gasket Seal – The plug eliminates combustion gas leakage with its triple gasket seal design.

Iridium Alloy Construction – Strong Iridium alloy protects itself against heat and electrical wear.

What we liked

• An all-rounder in terms of performance.
• Offers optimum durability and stable sparks.
• Tapered ground electrode minimizes the electrical quenching effect.
• Efficient design ensures mileage.

What we didn’t like

• Not the cheapest option.

2. Bosch 9620 Pin to Pin Spark Plug – Best Overall

When you’re looking for a name that knows what reliability means, then Bosch is probably one of those names that you can rely on with closed eyes. Guess what they’ve brought this time to make you trust them more? Yes, the 9620 Pin to Pin Spark Plug.

The first thing that awestruck us is its ability to stand against internal corrosion. Guess what was responsible for that? Yes, the Double Iridium firing pin. But it was impossible without the continuous 360° laser welding. And want to know the level of durability it pulls off? It’s 4X longer than those copper plugs you see around.

But it’s tough to call a spark plug perfect if it can’t even support the ignition. Thankfully, the pin-to-pin ignition mechanism here features the 0.6mm wiring, and it ensures nothing but superb improvement in the ignitability. Besides, the amazing heat transferring ability takes down the voltage requirements.

By the way, is the random flashover turning into a major headache for you lately? Well, if the answer is yes, then you can just relax and let its integrated ribbed insulator handle that.

Key Features:

360° Continuous Laser Welding – The 360° continuous laser welding ensures that the durability stays on the peak. Actually, the exact number will be 4X longer life.

Fine Wire Firing Pin – Fine wire firing pin brings major changes in voltage requirements. Unlike some of the spark plugs, it lowers the voltage requirements.

Copper-core Ground Electrode – Copper-core ground electrode makes sure you’re getting better performance on the heat transferring.

Ribbed Insulator Design – The Ribbed insulator design performs significantly well in preventing flashovers.

What we liked

• Designed to last 4X longer.
• Ensures lower voltage requirement.
• Good with heat transferring.
• Boasts better corrosion resistance.
• Brings improvement in the ignitability.

What we didn’t like

• Might not always deliver the expected throttle response.

3. NGK ZFR5FIX-11 Plugs – Also Great

This has caught our attention due to its high precision sparks and reliability. Combined with affordability and NGKs brand value, this may get a place under your hood.

Designed only for the performance freaks, the plug delivers extreme ignitability, refined throttle response, and enhanced anti-fouling. With this under the hood, you will have a hard time stopping in signals as the speed thrill will keep you busy.

The fine Iridium tip offers superior, long-lasting performance giving consistent sparks even under intensive loads. You won’t have to think twice about quality as this plug comes packed with only high-end materials that ensure all-round safety and performance.

It’s been designed to resist the quenching effect, fouling, and flashovers – reducing your engine misfires and saving up power and engine life. The triple gasket seal plays a vital role in keeping the mileage up by preventing gas leaks and ensuring the most value for your bucks.

You won’t be having rust and seizing issues as the plug comes with a trivalent metal plating well capable of fighting against them. The Iridium alloy offers its benefits of high melting point, saving you up from damages caused due to heat and faulty electrical connections.

Key Features:

Fine Iridium Tip – Fine Iridium tip offers superior, long-lasting performance, giving consistent sparks even under intensive loads.

Triple Gasket Seal – Triple gasket seal, keeps the mileage up by preventing gas leaks.

Trivalent Metal Plating – Trivalent metal plating fights against rusting and seizing issues.

Iridium Alloy – The Iridium alloy protects from damages caused due to heat and faulty electrical connections.

What we liked

• Delivers extreme ignitability and refined throttle response.
• Enhanced anti-fouling.
• Designed to resist quenching effect, fouling, and flashovers.
• Saves up fuel, ensuring long rides.

What we didn’t like

• Not suitable for budget buyers.

4. NGK 7100 Spark Plug

This plug is specially catered to buyers who are skeptical about purchasing online. It comes with all sorts of authentication that will bring peace to your mind.

The 100% genuine plug comes directly from the NGK factory, eliminating any chances of being counterfeit. Besides, you will able to remove readings just by wiping with your hand to get an instant authentication test.

You will have further chances of authentication as the plus comes with a four-digit serial number that can be used to trace the production batch. It will let you get proof of authenticity from the manufacturer itself.

These license products come with stickers on every single packaging that indicates their authenticity. The oval labeling being placed on spots like production area, enterprise standards, and importers will provide you an instant visual check to make sure you are getting the real NGK spark plugs.

Key Features:

100% Genuine – 100% genuine plug comes directly for the NGK factory, eliminating any chances of being counterfeit.

Four-digit Serial Number – Comes with a four-digit serial number that can be used to trace the production batch.

Stickers – License products come with stickers on every single packaging that indicates their authenticity.

What we liked

• Offers performance and durability.
• Budget-friendly.
• Ensures better acceleration and fast starts.
• Four-digit serial confirms the authenticity.

What we didn’t like

• Platinum construction reduces durability.

5. NGK 6441-4PK Iridium IX Spark Plug

It’s another extension to the Iridium IX lineup that lives up to its expectation pretty well. Suitable for various models and engines, this plug will leave you amazed with its all-around features.

The first thing that will catch your eye is its sheer performance. With an impressive upgrade in ignitability, throttle response, and anti-fouling capability, the only downside you will feel is not having it installed from day one.

This plug boasts industry-leading construction materials that offer the most in terms of reliability and efficiency. The iridium tip has a high melting point that works as a vest against those heat waves and electrical shocks, ensuring max protection.

With consistent, stable sparks and minimal quenching effects, you will have tons of power to put behind the wheels, instantly giving acceleration you haven’t felt before. Add that with the triple gasket seal, and your engine will perform at its peak, cranking out the most mileage by eliminating gas leaks.

The Iridium alloy construction, along with the trivalent metal plating, makes the plug a well-shielded powerhouse capable of taking down corrosion and seizing with ease. Thus, you won’t have to replace your engine plugs before registering loads of mileage behind it.

Key Features:

Iridium Tip – Iridium tip works as a vest against heat waves and electrical shocks, ensuring max protection.

Triple Gasket Seal – Triple gasket seal, makes the engine perform at its peak, cranking out the most mileage by eliminating gas leaks.

Iridium Alloy Construction – Iridium alloy construction, along with the trivalent metal plating, offers added protection.

What we liked

• Sports upgraded ignitability and throttle response.
• Anti-fouling capability.
• Boasts industry-leading construction materials.
• Reliable and efficient.

What we didn’t like

• Comes with a hefty price tag.

6. Bosch 9614 Double Iridium Spark Plug

Bosch has been a trusted partner for automotive owners since 1902, offering innovative products manufactured under high-end facilities. The 9614 Double Iridium plug is well placed among the top if you are looking for your Honda Civic or Chevy Tahoe spark plugs.

This masterpiece boasts a Double Iridium firing pin packed together with a ground electrode that offers four times longevity compared to your budget copper plugs. Thus, you will be getting all the added services for the extra price you pay.

With superior ignitability and performance, your engine will be roaring in no time, waking up your neighbors even on cold winter nights. All these are possible due to the 0.6mm firing pin that has been fine-tuned to perfection.

The plug has been well-received due to its 360-degree continuous laser welding fixing iridium firing pin at the base, making it extremely resistant to corrosion and increasing its durability. Thus, you get a plug that performs consistently, protecting itself from wearing out.

Key Features:

Double Iridium Firing Pin – The plug boasts a Double Iridium firing pin packed together with a ground electrode that offers four times longevity.

Fine-tuned Firing Pin – 0.6mm fine-tuned firing pin offers superior ignitability and performance.

360-degree Welded Iridium Firing Pin – The360-degree welded iridium firing pin at the base provides extreme corrosion resistance and increased durability.

What we liked

• Provides extreme resistance to corrosion.
• Increased durability.
• Delivers full-throttled performance.
• Suitable for a wide variety of engines.

What we didn’t like

• Relatively expensive.

7. NGK ILZKR7B11 Laser Iridium Spark Plug

Our seventh pick is for budget buyers and is an ideal option if you are looking for premium performance without paying the extra price.

The NGK ILZKR7B11 features a center electrode tip manufactured using the highest quality Iridium that has been laser welded to perfection, ensuring optimum durability and high precision sparks.

It features a platinum disk at the back of the ground electrode that ensures long life. Thus, you get a high-end quality service that will last for years. A longer insulator nose prevents fouling keeping your plug neat and ready for action at any instant.

The insulator features corrugated ribs that do an incredible job in preventing flashovers. All these make sure you get a faster start and instant acceleration. Triple gasket seal prevents wastage of gas, making sure you complete your daily routine trips without frequently visiting the gas stations.

This performance plug not only performs well but also is ahead of its competition in terms of safety, thanks to the Trivalent Metal Plating that ensures extreme corrosion and seizing control, reducing your worries about fast wear outs.

Key Features:

Platinum Disk – The platinum disk at the back of the ground electrode ensures long life.

Iridium Center Electrode Tip – Theiridium center electrode tip ensures optimum durability and high precision sparks.

Corrugated Ribs – Its corrugated ribs do an incredible job in preventing flashovers.

Triple Gasket Seal – Triple gasket seal, prevents wastage of gas.

Trivalent Metal Plating – Trivalent Metal Plating ensures extreme corrosion and seizing control.

What we liked

• Ensures optimum durability and high precision sparks.
• Longer insulator nose prevents fouling.
• Keeps the plug neat and ready for action at any instant.
• Offers resistance to corrosion and seizing.

What we didn’t like

• Slightly less durable than its high-end siblings.

8. MIKKUPPA 6619 Iridium Spark Plug

It’s time to reveal the last one on our list. But if you’re expecting that as it sits on the last spot, it’ll deliver you some low-grade performance, then forget it. Because 6619 Iridium Spark Plug from MIKKUPPA won’t let you walk away disappointed with its superb performance.

The first thing you’ll probably love the most about this one is the laser-welded center electrode. And why wouldn’t you? Especially after knowing that it gives the spark plug the ability to last longer. After all, having 800-hours continuous life ain’t something that a low-end spark plug can pull off.

Guess how far this spark plug can take you? Get ready for the surprising number then. It’s 50,000 km at least! But what else is going to improve right after you put it in your ride? Well, it’s the fuel efficiency. Thanks to its fast start feature for making that easy as pie.

By the way, are you thinking if the 6619 can take down the RFI (Radio Frequency Interference) level or not? Rest assured, as the resistance glass seal in there will take care of it.

We know it’s not that simple to find a spark plug that can take the insulator’s dielectric mechanical strength to an outstanding level. But it seems team MIKKUPPA has done it perfectly with the Ceramic T95.

Key Features:

Insulator Head Ribs – With the ribs on the insulator head, it’ll easily prevent the high voltage flashover that gives you headaches at times.

Resistance Glass Seal – The resistance glass seal, reduces the Radio Frequency Interference level.

Ceramic T95 – The Ceramic T95 ensures that the dielectric mechanical strength of the insulator reaches an outstanding level.

What we liked

• Improves the fuel efficiency.
• 800-hours continuous life.
• Can run 50,000 km at least.
• Comes with the fast start feature.
• Reduces the Radio Frequency Interference level.

What we didn’t like

• Incompatible with some major brands.

What to Look for Before Buying Honda Civic Spark Plugs?

A good spark plug will keep your engine cranking out the most power using the least fuel. Thus, it’s vital that you opt for one that suits your engine model and enhances its performance. We strongly suggest following the manufacturer’s suggestions to help you in the process in addition to our buying guide.

Here are the key factors you need to look for to find out the best spark plugs for Honda Accord, which meets your requirements and budget.

Material

Spark plugs come in various materials. Each of them offers you unique benefits regarding price or performance. Below is a brief description of each of them that will help you pick the right one.

Copper

The copper plugs have been here for a long time and are, in many cases, the only choice for motor engines. In case you have an old generation engine, there may be chances that it only supports copper spark plugs. These are the most affordable options in the market that will get the job done.

Platinum

These are a slight upgrade over the copper ones and will provide you better performance and twice the longevity. Running at relatively lower temperatures than the copper ones, they are unlikely to wear out soon.

Double-Platinum

It’s the sweet spot if you want to get a feel of the premium without breaking the bank. Double plated platinum plugs offer premium-like performance and are suitable for your daily driver engine.

Iridium

Plugs made of Iridium offer the most in terms of performance, durability, and efficiency. They offer high precision-built quality and the latest technology. But all these come at a good price. You won’t be having any complaints with these plugs powering your engine.

Heat Range

It’s another important factor that has to be taken into consideration—having a heat range colder than required will allow carbon deposits to form a clog. On the other hand, a hotter heat range may result in pre-ignition, thus decreasing efficiency.

Now, it is recommended that you opt for cold plugs if your engine runs at a high operating temperature like high RPM engines or forced induction applications—the opposite works for engines that run at low RPMs.

Final Thoughts

We have come towards the end of our discussion. These are the best spark plugs for Honda Civic that money can buy you in 2021. So, which one is perfect? It’s a tricky question, but the answer can be found in your budget and your vehicle’s engine compatibility.

If nothing is holding you back, the Iridium Spark Plugs like the NGK BKR7EIX IX tops our recommendation list as they offer the most in terms of performance and durability, followed by Platinum ones, which offer mid-premium service at a much affordable cost.

Frequently Asked Questions (FAQs)

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