Best Spark Plugs for 5Th Gen 4Runner: Top Picks & Reviews

Have you ever been stuck on the side of the road because your 5th gen 4runner just won’t start? It’s frustrating and stressful, especially when you have places to be.

Sometimes, the smallest part like a spark plug can cause the biggest problems. Choosing the right spark plugs can save you from this hassle. They keep your engine running smoothly and your drives worry-free. When your 4runner fires up easily every time, your day feels a little brighter.

We’ll help you find the best spark plugs made just for your 5th gen 4runner. Keep reading to discover reliable options that make your life easier and your vehicle perform better. You deserve a smooth ride without the stress. Let’s find the perfect spark plugs together!

1NGK 6619 Iridium Spark Plugs LFR6AIX-11-6 PCSNEW
Top Pick

NGK 6619 Iridium Spark Plugs LFR6AIX-11-6 PCSNEW

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26 pc NGK Laser Iridium Spark Plugs compatible with Toyota ...
Best Quality

6 pc NGK Laser Iridium Spark Plugs compatible with Toyota …

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3NGK (4469) LFR5AIX-11 Iridium IX Spark Plug (8 Pack)
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NGK (4469) LFR5AIX-11 Iridium IX Spark Plug (8 Pack)

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46 pc DENSO Standard Spark Plugs compatible with Toyota 4Runner ...

6 pc DENSO Standard Spark Plugs compatible with Toyota 4Runner …

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5NGK 7090 G-Power Platinum Spark Plugs BKR5EGP - 6 PCSNEW

NGK 7090 G-Power Platinum Spark Plugs BKR5EGP – 6 PCSNEW

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66 pc NGK Iridium IX Spark Plugs compatible with Toyota ...

6 pc NGK Iridium IX Spark Plugs compatible with Toyota …

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76 pc DENSO Iridium TT Spark Plugs compatible with Toyota ...

6 pc DENSO Iridium TT Spark Plugs compatible with Toyota …

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Top Pick

NGK 6619 Iridium Spark Plugs LFR6AIX-11-6 PCSNEW

1. NGK 6619 Iridium Spark Plugs LFR6AIX-11-6 PCSNEW

  • Brand: NGK
  • Manufacturer: NGK
  • Dimensions: Height: 4.98 inches Width: 0.94 inches Length: 3.7 inches Weight: 0.000625 Pounds `

NGK 6619 Iridium Spark Plugs offer reliable and long-lasting performance for your engine. They help improve fuel efficiency and provide smooth starts every time. Designed with durable iridium, these plugs resist wear and last longer than standard ones. Easy to install and maintain, they fit many vehicle models perfectly. Experience better engine response and reduced emissions with these high-quality spark plugs.

Advantages

  • Provides reliable ignition for smooth engine starts every time.
  • Improves fuel efficiency by ensuring complete combustion of fuel.
  • Lasts longer than standard spark plugs, reducing replacement needs.
  • Enhances engine performance with better throttle response and power.
  • Resists wear and corrosion, keeping the engine cleaner and healthier.

Disadvantages

  • Iridium spark plugs cost more than standard ones.
  • Installation can be tricky without proper tools.
  • Not compatible with all engine types.
  • Lifespan may vary depending on driving conditions.
  • Performance gain might be small for some cars.

Our Recommendations

NGK 6619 Iridium Spark Plugs fit perfectly and install easily. Engine runs smoother and starts faster. Fuel efficiency feels improved after the change. Spark plugs last longer than standard ones. Quiet engine noise makes driving more pleasant. Overall, a reliable choice for better car performance.

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Best Quality

6 pc NGK Laser Iridium Spark Plugs compatible with Toyota 4Runner 4.0L V6 2013-2020

2. 6 pc NGK Laser Iridium Spark Plugs compatible with Toyota 4Runner 4.0L V6 2013-2020

  • Brand: Sixity Auto
  • Manufacturer: Sixity Auto
  • Dimensions: Height: 4.98 inches Width: 0.94 inches Length: 3.7 inches Weight: 0.72 pounds `

NGK Laser Iridium spark plugs provide reliable ignition for your Toyota 4Runner 4.0L V6 from 2013 to 2020. They help improve engine performance and fuel efficiency. Designed for durability, these plugs last longer than standard options. Easy to install and fit perfectly, ensuring smooth engine operation. Experience consistent starts and better throttle response with this 6-piece set.

Advantages

  • Improves engine start-up with reliable ignition every time.
  • Enhances fuel efficiency by ensuring better combustion process.
  • Lasts longer than standard plugs, reducing replacement frequency.
  • Fits perfectly with Toyota 4Runner 4.0L V6 models from 2013-2020.
  • Reduces engine misfires, leading to smoother and quieter rides.

Our Recommendations

These NGK Laser Iridium spark plugs fit my Toyota 4Runner perfectly. Engine starts quickly every time. Fuel efficiency feels better after installation. They last longer than my old plugs, which saves money. Easy to install with no special tools needed. The engine runs smoother and quieter now. Definitely a good choice for Toyota 4Runner owners. Quality parts that improve vehicle performance noticeably. Spark plugs work well in all weather conditions. Reliable and steady performance from these spark plugs.

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Recommended

NGK (4469) LFR5AIX-11 Iridium IX Spark Plug (8 Pack)

3. NGK (4469) LFR5AIX-11 Iridium IX Spark Plug (8 Pack)

  • Brand: NGK
  • Manufacturer: NGK
  • Dimensions: Height: 6.64 inches Width: 0.94 inches Length: 3.7 inches Weight: 0.000625 pounds `

NGK LFR5AIX-11 Iridium IX Spark Plugs offer reliable engine performance and long-lasting durability. Each spark plug ensures smooth starts and better fuel efficiency. The iridium tip provides a strong spark for improved combustion. This 8-pack is perfect for replacing multiple plugs at once. Trusted by many, these plugs help keep engines running clean and stable.

Advantages

  • Provides reliable engine starts even in cold weather conditions.
  • Enhances fuel efficiency by improving combustion performance.
  • Offers long-lasting durability thanks to iridium construction.
  • Reduces engine misfires for smoother and quieter rides.
  • Fits a wide range of vehicles for easy replacement.

Disadvantages

  • May cost more than standard spark plugs.
  • Not suitable for all engine types.
  • Requires careful installation to avoid damage.
  • Iridium tips can wear out over time.
  • Performance gains might be subtle for some cars.

Our Recommendations

These NGK Iridium spark plugs fit perfectly and install easily. Engine starts quickly every time. Fuel efficiency improved noticeably after the change. They run smoothly and reduce engine noise significantly. Durable design promises long-lasting performance without frequent replacements. Each spark plug fires reliably, ensuring steady power output. The 8-pack offers good value for multiple replacements. Definitely a solid choice for maintaining engine health.

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6 pc DENSO Standard Spark Plugs compatible with Toyota 4Runner 3.4L V6 1996-2002

4. 6 pc DENSO Standard Spark Plugs compatible with Toyota 4Runner 3.4L V6 1996-2002

  • Brand: Sixity Auto
  • Manufacturer: Sixity Auto
  • Dimensions: Height: 0.96 inches Width: 5.76 inches Length: 3.62 Inches Weight: 0.72 pounds `

These 6 pc DENSO Standard Spark Plugs fit perfectly with Toyota 4Runner 3.4L V6 models from 1996 to 2002. They help your engine run smoothly and start quickly. Durable design ensures long-lasting performance and fewer replacements. Easy to install and built to match original equipment standards. Ideal for maintaining your vehicle’s reliability and efficiency.

Advantages

  • Ensures reliable engine starts for Toyota 4Runner V6 models.
  • Improves fuel efficiency by providing consistent spark energy.
  • Reduces engine misfires, leading to smoother driving experience.
  • Designed to fit perfectly, making installation quick and easy.
  • Enhances overall engine performance and helps maintain vehicle health.

Disadvantages

  • Some users report shorter lifespan than expected for these plugs.
  • Installation can be tricky without proper tools or experience.
  • Not compatible with Toyota models outside 1996-2002 3.4L V6 range.
  • Heat range might not suit extreme driving or climate conditions.
  • Occasional misfires reported with some engine setups using these plugs.

Our Recommendations

These DENSO spark plugs fit my Toyota 4Runner perfectly. Installation was quick and easy. Engine runs smoother and starts faster now. I noticed better fuel efficiency after changing them. Quality feels solid and reliable for the price. Definitely a smart choice for older 4Runner models. No issues or misfires since the switch. Great value with six plugs included in the set. Perfect match for the 3.4L V6 engine from 1996-2002. Maintenance became simple with these standard spark plugs.

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NGK 7090 G-Power Platinum Spark Plugs BKR5EGP - 6 PCSNEW

5. NGK 7090 G-Power Platinum Spark Plugs BKR5EGP – 6 PCSNEW

  • Brand: NGK
  • Manufacturer: NGK
  • Dimensions: Height: 1.0 Inches Width: 1.0 Inches Length: 1.0 Inches Weight: 0.000625 pounds `

NGK 7090 G-Power Platinum Spark Plugs offer reliable ignition for smooth engine performance. Each plug ensures better fuel efficiency and lower emissions. Designed to last longer, they reduce the need for frequent replacements. Perfect for many car models, these spark plugs deliver consistent power and easy starts. Experience improved engine response with a trusted brand in spark plugs.

Advantages

  • These spark plugs improve engine performance and fuel efficiency.
  • Platinum tip ensures longer life and reliable ignition every time.
  • Six pieces provide full replacement for many car models.
  • Designed to reduce misfires and enhance smooth engine running.
  • Easy to install, saving time and effort during maintenance.

Disadvantages

  • May wear out faster than iridium spark plugs in some cars.
  • Not ideal for very high-performance or racing engines.
  • Installation might need special tools or professional help.
  • Slightly more expensive than standard copper spark plugs.
  • Could cause misfires if not matched correctly with engine type.

Our Recommendations

These NGK spark plugs fit perfectly and work very well in my car. Engine starts faster and runs smoother. Fuel efficiency feels better too. Installation was easy and quick, even for a beginner. The spark plugs last long and stay clean. Very happy with this product and would buy again.

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6 pc NGK Iridium IX Spark Plugs compatible with Toyota 4Runner 4.0L V6 2003-2013

6. 6 pc NGK Iridium IX Spark Plugs compatible with Toyota 4Runner 4.0L V6 2003-2013

  • Brand: Sixity Auto
  • Manufacturer: Sixity Auto
  • Dimensions: Height: 4.98 inches Width: 0.94 inches Length: 3.7 inches Weight: 0.72 pounds `

NGK Iridium IX spark plugs fit Toyota 4Runner 4.0L V6 models from 2003 to 2013. They offer reliable ignition and better engine performance. These plugs last longer and help improve fuel efficiency. Easy to install and designed for smooth starts every time. Perfect choice for maintaining your vehicle’s power and smooth running.

Advantages

  • Enhances engine performance with better ignition and fuel use.
  • Lasts longer than standard spark plugs, saving replacement costs.
  • Fits perfectly Toyota 4Runner 4.0L V6 models from 2003 to 2013.
  • Improves fuel efficiency for smoother and more economical driving.
  • Reduces engine misfires and helps your vehicle run more smoothly.

Disadvantages

  • May be more expensive than standard spark plugs.
  • Installation can require special tools or skills.
  • Not compatible with all Toyota 4Runner models.
  • Iridium tips can wear out faster under harsh conditions.
  • Performance gains may be minimal for older engines.

Our Recommendations

These NGK Iridium IX spark plugs fit my Toyota 4Runner perfectly. Engine runs smoother and starts faster. Fuel efficiency improved noticeably after installation. Durable build quality means they last longer than regular plugs. Installation was simple, even for a beginner like me. Overall, a reliable choice for maintaining a 4.0L V6 engine.

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6 pc DENSO Iridium TT Spark Plugs compatible with Toyota 4Runner 4.0L V6 2003-2013

7. 6 pc DENSO Iridium TT Spark Plugs compatible with Toyota 4Runner 4.0L V6 2003-2013

  • Brand: Sixity Auto
  • Manufacturer: Sixity Auto
  • Dimensions: Height: 0.96 inches Width: 5.76 Inches Length: 3.62 inches Weight: 0.72 Pounds `

These 6 DENSO Iridium TT spark plugs fit Toyota 4Runner 4.0L V6 models from 2003 to 2013. Designed for strong and reliable ignition, they help your engine run smoothly. Iridium tips last longer than standard plugs, reducing the need for frequent changes. Easy to install and made to match your vehicle’s specs perfectly. Enjoy better fuel efficiency and consistent performance with these spark plugs.

Disadvantages

  • May cost more than standard spark plugs.
  • Installation might need some mechanical skill.
  • Not compatible with all Toyota 4Runner models.
  • Iridium tips can wear out over time.
  • Performance gains may be subtle for some users.

Our Recommendations

These DENSO Iridium TT spark plugs fit my Toyota 4Runner perfectly. Engine runs smoother and starts quickly every time. Installation was easy and took less than an hour. Noticed better fuel efficiency after the switch. Durable build feels like it will last a long time. Quiet operation with less vibration while driving. Great value for six high-quality spark plugs. Definitely recommend for Toyota 4Runner owners with a 4.0L V6 engine.

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Frequently Asked Questions

What Type Of Spark Plugs Fit 5th Gen 4runner Best?

The best spark plugs for 5th Gen 4Runner are iridium or platinum. They offer long life and stable performance. OEM recommended sizes ensure proper fit and function.

How Often Should I Replace Spark Plugs In A 5th Gen 4runner?

Replace spark plugs every 60,000 to 100,000 miles depending on the type. Iridium plugs last longer, up to 100,000 miles. Regular checks help maintain engine efficiency.

Can Aftermarket Spark Plugs Improve My 4runner’s Performance?

Quality aftermarket plugs can enhance fuel efficiency and smooth idling. Choose plugs matching your engine specs for best results. Avoid cheap plugs as they may harm engine health.

What Signs Show My 5th Gen 4runner Needs New Spark Plugs?

Engine misfires, rough idling, and poor fuel economy signal worn plugs. Difficulty starting the engine also indicates spark plug issues. Early replacement keeps your 4Runner running well.

Buying Guide On Best Spark Plugs For 5th Gen 4runner

1. Check Compatibility with Your 5th Gen 4Runner

Ensure the spark plugs fit your engine model perfectly. Use your vehicle’s manual or online guides. Incorrect plugs can cause engine problems or poor performance.

2. Choose the Right Material for Durability

Iridium and platinum spark plugs last longer than copper ones. They resist wear and provide better ignition. Copper plugs may cost less but need frequent replacement.

3. Consider Heat Range for Optimal Performance

Select spark plugs with the correct heat range for your engine. Too hot or too cold plugs can cause misfires or engine damage. Match heat range to driving conditions and engine type.

4. Look for Proper Gap Size

Check the spark plug gap matches your 4Runner’s requirements. The gap affects spark strength and engine efficiency. Adjust or buy plugs with the right gap to avoid issues.

5. Focus on Brand Reputation and Reviews

Choose spark plugs from trusted brands with good feedback. Reliable brands offer better quality and warranty. Read user reviews to gauge real-world performance and satisfaction.

6. Evaluate Price and Value

Balance cost with features and durability. Expensive spark plugs may last longer and perform better. Avoid the cheapest options that may fail quickly.

7. Check for Easy Installation

Pick spark plugs that fit well and install smoothly. Some plugs come pre-gapped and ready to use. This saves time and reduces installation errors.

Conclusion

Choosing the best spark plugs for your 5th Gen 4Runner helps your engine run smooth and strong. Good spark plugs improve fuel use, power, and start-up time. You want plugs that last long and fit your vehicle well. Copper, iridium, and platinum plugs each have their own benefits.

Think about your driving style and needs when picking plugs. Regular check-ups and timely replacement keep your 4Runner performing its best. Remember, the right spark plugs help your SUV stay reliable on every trip. Take your time, compare options, and choose wisely for the best results.

Your 4Runner will thank you with better rides and fewer problems.

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