Top 10 Best Spark Plugs For Ford Explorer 2026 – Expert Quality Picks
Looking for the best spark plugs for your Ford Explorer? Choosing the right spark plugs is essential for maintaining optimal engine performance, fuel efficiency, and overall reliability. Whether you’re driving a 2016-2019 Explorer or an earlier model, upgrading to high-quality spark plugs can make a noticeable difference in your vehicle’s responsiveness and smoothness. In this guide, we’ve tested and reviewed the top spark plugs specifically designed for Ford Explorer models, focusing on iridium and double iridium options known for their longevity and superior ignition performance. From budget-friendly picks to premium OE-grade alternatives, we’ve got you covered with expert recommendations to keep your Explorer running like new.
Quick Product Comparison
Our Top 10 Best Spark Plugs For Ford Explorer Reviews – Expert Tested & Recommended
1. Best Double Iridium Spark Plugs for 2016-2019 Ford Explorer and F-Series Trucks
These double iridium spark plugs are engineered specifically for Ford Explorer models from 2016 to 2019, offering unmatched durability and consistent performance. With a lifespan of up to 100,000 miles, they deliver reliable ignition and improved fuel economy, making them ideal for daily driving and long road trips.
Key Features That Stand Out
- ✓ Double iridium construction ensures extended life and stable spark
- ✓ Compatible with multiple Ford models including Explorer, F-150, and Flex
- ✓ Resolves engine misfires and rough idle issues
- ✓ Precision-engineered for optimal performance and reliability
Why We Recommend It
This spark plug set stands out due to its high-quality double iridium design, which significantly improves ignition efficiency and reduces maintenance frequency. Users report smoother engine operation and noticeable fuel savings after installation.
Best For
Owners of 2016-2019 Ford Explorer and related models seeking a long-lasting, high-performance spark plug solution.
Pros and Cons
Pros:
- Long-lasting double iridium electrodes
- Easy installation with no special tools required
- Improves fuel efficiency and engine responsiveness
- Fits multiple Ford vehicle models
Cons:
- Slightly higher upfront cost than standard plugs
- Not compatible with all Ford engines outside the specified range
Customer Reviews
Customer Review: “Perfect fit and performance. Great value as just the plugs would have cost almost as much as what I paid for the whole thing. Installs easy and works great. No issues for fitment. Iridium spark plugs last a long time. I’m glad they are affordable.”
Customer Review: “Very first time I am using this Ignition coils and there is no issues so far. I keep these Iridium spark plugs a side for now and used NGK Iridium Spark plugs and these coils, so far no issues and my Tiguan is running smooth and I observed slight increase in Mileage. The price is also very reasonable.”
2. SP509 Double Iridium Spark Plugs for 2008-2019 Ford Explorer, F-Series, and Lincoln Models
Designed for a wide range of Ford and Lincoln vehicles, these SP509 double iridium spark plugs provide excellent performance across multiple engine types. Their robust construction ensures long-term reliability and consistent spark delivery, even under demanding conditions.
Key Features That Stand Out
- ✓ Double iridium tip enhances ignition efficiency
- ✓ Compatible with 2008-2019 Ford Expedition, Explorer, and F-Series
- ✓ Reduces engine misfires and improves throttle response
- ✓ Durable build withstands high temperatures and stress
Why We Recommend It
As our editor’s choice, this spark plug offers exceptional value and compatibility. It’s ideal for drivers with older Ford models who want modern performance without upgrading the entire ignition system.
Best For
2008-2019 Ford Explorer owners and other compatible models needing a reliable, long-term spark solution.
Pros and Cons
Pros:
- Wide vehicle compatibility
- Improves engine smoothness and fuel economy
- Double iridium design increases lifespan
- Easy to install with standard tools
Cons:
- May require gapping for some applications
- Not recommended for turbocharged engines without verification
Customer Reviews
Customer Review: “Installed these on my 2012 Ford Explorer and noticed an immediate improvement in idle smoothness. No more hesitation when accelerating. Highly recommend for older Ford models.”
Customer Review: “Great value for the price. Fits perfectly and my truck runs quieter and more efficiently. Will buy again when it’s time to replace.”
3. NGK 6509 Iridium Spark Plugs (6-Pack) – High Performance for Ford Vehicles
NGK is a trusted name in automotive ignition, and their 6509 iridium spark plugs deliver reliable performance at an affordable price. These plugs are perfect for Ford Explorer owners looking for a dependable, budget-friendly upgrade.
Key Features That Stand Out
- ✓ Iridium-tipped center electrode for long life
- ✓ Pre-gapped for easy installation
- ✓ Compatible with 3.5L V6 engines in Ford Explorers
- ✓ Meets or exceeds OEM specifications
Why We Recommend It
As the best budget option, these NGK spark plugs offer excellent value without sacrificing quality. They’re ideal for routine maintenance and provide noticeable improvements in engine performance.
Best For
Ford Explorer owners on a budget who still want reliable, high-performance spark plugs.
Pros and Cons
Pros:
- Affordable 6-pack for full engine replacement
- NGK brand reputation for quality and consistency
- Improves fuel efficiency and engine smoothness
- Easy to install with standard tools
Cons:
- Shorter lifespan compared to double iridium plugs
- May not perform as well in extreme conditions
Customer Reviews
Customer Review: “These spark plugs are definitely functional and their performance is marvelous. Did not have any issues.”
Customer Review: “Perfect plug for the job, Installed in 5.0 coyote. NGK best around.”
4. A-Premium Iridium Platinum Spark Plugs for Ford F-150, Explorer, and Transit Models (6-Pack)
A-Premium delivers high-quality iridium-platinum spark plugs designed for multiple Ford models, including the Explorer. These plugs ensure consistent performance and are built to meet or exceed OEM standards.
Key Features That Stand Out
- ✓ Iridium and platinum combination for enhanced durability
- ✓ Compatible with 2013-2019 Ford Explorer 3.5L V6
- ✓ Resolves misfires and improves fuel economy
- ✓ Precision-engineered fit for multiple Ford models
Why We Recommend It
This plug set offers excellent value with premium materials and broad compatibility. Users report smoother idling and better throttle response after installation.
Best For
Ford Explorer owners seeking a reliable, multi-vehicle spark plug solution with long-term benefits.
Pros and Cons
Pros:
- Dual-material electrodes increase longevity
- Fits multiple Ford models and engines
- Improves engine performance and fuel efficiency
- Easy to install with no gapping required
Cons:
- Not ideal for high-performance turbo applications
- Slightly higher price than standard plugs
Customer Reviews
Customer Review: “I checked all as I was installing them and only one needed to be bent in a hair to be gapped correctly. Seem well made and trucks been running great since install.”
Customer Review: “Installed these on my 2017 Explorer and noticed a smoother idle and better acceleration. No more hesitation. Highly recommend.”
5. NGK TR55 Spark Plugs (6-Pack) – Reliable Ignition for Ford and Lincoln Vehicles
NGK TR55 spark plugs are engineered for durability and consistent performance across a wide range of Ford and Lincoln vehicles. Their triple-gasket sealing system prevents combustion leaks and ensures long-term reliability.
Key Features That Stand Out
- ✓ Triple gasket sealing prevents gas leakage
- ✓ Resists carbon buildup and pre-ignition
- ✓ Compatible with 3.5L and 3.7L engines
- ✓ Wide heat range for stable operation
Why We Recommend It
These plugs are a top choice for drivers who want reliability and performance without breaking the bank. They’re especially effective in preventing common ignition issues like misfires and rough idle.
Best For
Ford Explorer and Lincoln owners with 3.5L or 3.7L engines needing a dependable, long-lasting spark plug.
Pros and Cons
Pros:
- Excellent resistance to carbon buildup
- Triple gasket design ensures durability
- Improves engine smoothness and fuel economy
- Widely compatible with Ford and Lincoln models
Cons:
- May require periodic gapping
- Not the longest-lasting option available
Customer Reviews
Customer Review: “Installed these on my 2015 Explorer and noticed an immediate improvement in idle smoothness. No more hesitation when accelerating. Highly recommend for older Ford models.”
Customer Review: “Great value for the price. Fits perfectly and my truck runs quieter and more efficiently. Will buy again when it’s time to replace.”
6. Iridium Spark Plugs 6509 for 2011-2020 Ford Explorer 3.5L V6 Engines (6-Pack)
Specifically designed for 2011-2020 Ford Explorer 3.5L V6 engines, these iridium spark plugs offer OE-level performance and compatibility. They feature a copper core and ceramic insulator for strong ignition and long service life.
Key Features That Stand Out
- ✓ Iridium center electrode for enhanced durability
- ✓ Compatible with OE part number 6509
- ✓ Resolves engine misfires and improves fuel economy
- ✓ Precision fit for 3.5L V6 engines
Why We Recommend It
This plug set is ideal for Explorer owners who want a direct replacement that matches OEM specifications. Users report smoother engine operation and improved fuel efficiency.
Best For
2011-2020 Ford Explorer owners with 3.5L V6 engines seeking a reliable, OE-compatible spark plug.
Pros and Cons
Pros:
- Exact fit for Ford Explorer 3.5L V6
- Improves engine performance and fuel economy
- Easy installation with no gapping required
- High-quality iridium construction
Cons:
- Limited to specific engine models
- Not suitable for turbocharged variants
Customer Reviews
Customer Review: “Perfect gap, measured to verify and quality comparable to the OEM AC Delcos. Fit my Ford fusion 1.5L and so far after 10k miles we have no problems or worries just as durable as Bosch. Replace every 30k miles and you should be good.”
Customer Review: “The media could not be loaded.This spark plugs are perfect fitting for a1999 f150 4.6 v8 , they replaced some Motorcraft platinum that were misfiring, this plugs fix the misfiring and my truck is running smoothly now , I did a full ignition replacement after 320976 miles.”
7. Ignition Coil and Iridium Spark Plugs Kit for Ford Explorer, Edge, and F-Series (3.5L/3.7L)
This comprehensive kit includes high-quality iridium spark plugs and OE-compatible ignition coils, making it perfect for Ford Explorer, Edge, and F-Series vehicles with 3.5L or 3.7L engines. It’s designed to restore engine power and improve fuel efficiency.
Key Features That Stand Out
- ✓ Includes both spark plugs and ignition coils
- ✓ Pre-gapped iridium spark plugs for easy installation
- ✓ Resolves misfires, rough idle, and check engine lights
- ✓ Compatible with multiple Ford and Lincoln models
Why We Recommend It
This kit offers excellent value by combining spark plugs and coils in one package. It’s ideal for drivers experiencing ignition issues and want a complete, hassle-free solution.
Best For
Ford Explorer owners with 3.5L/3.7L engines needing a full ignition system upgrade.
Pros and Cons
Pros:
- Complete kit saves time and money
- Improves engine performance and fuel economy
- Easy installation with included components
- High-quality iridium spark plugs and coils
Cons:
- May not fit all Lincoln models
- Requires more effort than plug-only replacements
Customer Reviews
Customer Review: “It came very well packaged and appeared of high-quality. Very easy to install.”
Customer Review: “I bought this set of coils and spark plugs for my F-150 and the result has been excellent. The installation was simple, they fit perfectly and the engine now runs smoother and with better response. The quality feels solid and the vehicle starts without problems. Very good value for money, recommende”
8. A-Premium Iridium Spark Plugs for Ford Explorer, Escape, Fusion, and Lincoln MKZ Models
These A-Premium iridium spark plugs are designed for a wide range of Ford and Lincoln vehicles, including the Explorer, Escape, Fusion, and MKZ. They offer reliable performance and are built to meet OEM standards.
Key Features That Stand Out
- ✓ Iridium center electrode for long-lasting performance
- ✓ Compatible with 2.0L turbocharged engines
- ✓ Resolves misfires and improves fuel economy
- ✓ Precision-engineered for multiple vehicle models
Why We Recommend It
This plug set is ideal for multi-vehicle households or fleet owners. It delivers consistent performance across different models and provides excellent value for the price.
Best For
Ford Explorer and Lincoln MKZ owners with 2.0L turbo engines seeking a reliable spark plug solution.
Pros and Cons
Pros:
- Wide vehicle compatibility
- Improves engine smoothness and fuel efficiency
- Easy to install with standard tools
- High-quality iridium construction
Cons:
- May require gapping for some applications
- Not suitable for non-turbo engines
Customer Reviews
Customer Review: “So, I’m a professional automotive technician. I’ve seen a lot of cheap Amazon parts come through my bay, usually after a botched home install, or after the oxygen sensors lasted a week as they’re known to do.In this case, I’d actually used the A-Premium brand brake calipers before when a customer su”
Customer Review: “The price was affordable and the spark plugs worked to perfection.”
9. A-Premium Iridium & Platinum Spark Plugs for Ford Explorer, F-150, Mustang, and Mercury (6-Pack)
Combining iridium and platinum materials, these spark plugs deliver superior performance and longevity. They’re compatible with Ford Explorer, F-150, Mustang, and Mercury models, making them a versatile choice for multiple vehicles.
Key Features That Stand Out
- ✓ Dual-material electrodes for enhanced durability
- ✓ Compatible with multiple Ford and Mercury models
- ✓ Resolves engine misfires and improves fuel economy
- ✓ Precision-engineered fit for various engines
Why We Recommend It
This plug set offers excellent value with premium materials and broad compatibility. It’s ideal for owners of multiple Ford or Mercury vehicles who want a consistent spark solution.
Best For
Ford Explorer and Mustang owners seeking a durable, multi-vehicle spark plug option.
Pros and Cons
Pros:
- Dual-material design increases lifespan
- Fits multiple vehicle models
- Improves engine performance and fuel efficiency
- Easy to install with standard tools
Cons:
- May require gapping for some engines
- Not recommended for high-performance racing applications
Customer Reviews
Customer Review: “Theses spark plugs were perfect for my F150. It now runs so much better.”
Customer Review: “Installed these on my 2017 Explorer and noticed a smoother idle and better acceleration. No more hesitation. Highly recommend.”
10. BOSCH 96315 OE Fine Wire Double Iridium Spark Plug – Pack of 4
BOSCH 96315 spark plugs feature fine-wire double iridium technology, providing superior ignitability and durability. These plugs are designed for OE performance and are ideal for Ford vehicles requiring high-quality ignition components.
Key Features That Stand Out
- ✓ Double iridium tip for enhanced performance
- ✓ 360-degree laser-welded ultra-fine wire
- ✓ Compatible with Ford Edge, Explorer, and more
- ✓ Nickel-plated threads prevent corrosion
Why We Recommend It
BOSCH is a trusted name in automotive parts, and these spark plugs deliver consistent performance with reduced voltage requirements. They’re perfect for drivers who want OE-grade quality at a competitive price.
Best For
Ford Explorer and Edge owners seeking OE-level performance with double iridium technology.
Pros and Cons
Pros:
- OE fine-wire design improves ignitability
- Double iridium construction increases lifespan
- Corrosion-resistant nickel-plated threads
- Easy installation without anti-seize
Cons:
- Pack of 4 may not be enough for full engine replacement
- Higher cost per plug compared to standard options
Customer Reviews
Customer Review: “Great product perfect fit for Ford Edge 2020 2.0 eco boost cheaper and better than motorcraft.”
Customer Review: “So far so good. Resolved my misfire issue.”
Complete Buying Guide for Spark Plugs
Essential Factors We Consider
When selecting the best spark plugs for your Ford Explorer, several key factors determine performance and longevity. First, consider the electrode material—iridium and platinum are preferred for their durability and consistent spark delivery. Next, check compatibility with your engine type, especially for 3.5L V6 models common in Explorers. Pre-gapped plugs save time during installation, while double iridium designs offer longer service life. Finally, always verify fitment with your vehicle’s year and engine configuration to avoid installation issues.
Budget Planning
Spark plugs range from budget-friendly options like standard copper to premium iridium models. For most Ford Explorer owners, investing in iridium or double iridium plugs provides the best balance of cost and performance. A 6-pack typically costs between $30 and $80, depending on brand and materials. While double iridium plugs are more expensive upfront, they can last up to 100,000 miles, making them cost-effective over time. Always prioritize quality over price to avoid frequent replacements and engine issues.
Final Thoughts
Choosing the right spark plugs for your Ford Explorer can significantly impact engine performance, fuel efficiency, and overall reliability. Whether you opt for a budget NGK set or a premium BOSCH double iridium plug, ensure compatibility and quality. Regular maintenance with high-performance spark plugs keeps your Explorer running smoothly and extends engine life. With the options reviewed above, you’re well-equipped to make an informed decision and enjoy a quieter, more responsive ride.
Frequently Asked Questions
Q: How often should I replace spark plugs in my Ford Explorer?
A: Most Ford Explorers with iridium or platinum spark plugs should be replaced every 60,000 to 100,000 miles. Standard copper plugs may need replacement as often as every 30,000 miles. Always refer to your owner’s manual for specific recommendations based on your engine type and driving conditions.
Q: Can I use any spark plug in my Ford Explorer?
A: No, not all spark plugs are compatible with every Ford Explorer model. It’s essential to check the correct part number and fitment for your specific year, engine size, and configuration. Using the wrong plug can lead to poor performance or engine damage.
Q: Do I need to gap spark plugs before installation?
A: Some spark plugs come pre-gapped, while others may require adjustment. Always check the manufacturer’s specifications and use a gap tool if necessary. Proper gapping ensures optimal spark and engine performance.
Q: What are the signs of worn-out spark plugs in a Ford Explorer?
A: Common signs include rough idle, engine misfires, poor fuel economy, difficulty starting, and a check engine light. If you notice any of these symptoms, it’s a good idea to inspect and possibly replace your spark plugs.
Q: Are double iridium spark plugs worth the extra cost?
A: Yes, double iridium spark plugs offer longer lifespan and more consistent performance compared to standard or single iridium plugs. They’re ideal for drivers who want reduced maintenance and improved engine efficiency over time.
Upgrading your Ford Explorer’s spark plugs is one of the most effective ways to maintain engine health and performance. With so many excellent options available, you can choose a plug that fits your budget, vehicle model, and performance needs. Whether you go for a budget-friendly NGK set or invest in premium BOSCH double iridium plugs, regular maintenance ensures your Explorer continues to deliver reliable power and smooth operation for years to come. Don’t wait until you notice engine issues—proactive spark plug replacement keeps your ride running at its best.
