There’s nothing more frustrating than a car that won’t start or runs rough when you need it most. For Focus ST owners, this can feel like a constant battle.
A simple part like a spark plug can make all the difference between a smooth drive and unexpected stalls. Choosing the right spark plugs not only boosts your car’s performance but also saves you time and stress every day. With the right plugs, your Focus ST will run stronger, start easier, and give you peace of mind on the road.
In this article, we’ll walk you through the best spark plugs designed for your Focus ST. Let’s find the perfect fit so you can enjoy every drive without worry. Keep reading to discover trusted options that fit your car and your needs.
Ngk Iridium Ix Spark Plug

The NGK 6510 LTR7IX-11 Iridium IX Spark Plug (4 Pack) is ideal for automotive enthusiasts and professional mechanics seeking reliable ignition performance and enhanced engine efficiency. If you want to improve your vehicle’s throttle response and fuel economy, this spark plug is designed for those who demand durability and precision in their ignition components.
Pros:
- Equipped with a fine-wire iridium center electrode for superior ignitability and longer lifespan.
- Improved fuel efficiency and reduced emissions due to consistent spark delivery.
- Corrosion-resistant construction ensuring durability under high-stress conditions.
- Comes in a convenient 4 pack offering great value and easy replacement.
- Precision-engineered to fit a wide range of vehicles with exact OEM specifications.
Cons:
- May be slightly more expensive compared to conventional spark plugs.
- Installation may require professional assistance for certain vehicle models.
The NGK 6510 LTR7IX-11 Iridium IX Spark Plug features a unique iridium alloy center electrode that significantly enhances durability and ignition reliability. This design reduces the voltage needed to ignite the air/fuel mixture, resulting in faster starts and smoother engine operation. Its precise manufacturing ensures a perfect fit and optimal gap, which contributes to consistent engine performance and less misfiring.
Users benefit from improved fuel economy and lower emissions due to the efficient combustion process facilitated by the iridium spark plug. Additionally, the corrosion-resistant materials and robust construction mean these spark plugs maintain their performance over time, reducing the frequency of replacements. Overall, this product offers a balance of high performance, longevity, and value for those looking to maintain or upgrade their vehicle’s ignition system.
Ngk Iridium Ix Spark Plugs

These 4 pc NGK Iridium IX Spark Plugs are ideal for Ford Focus owners with 2.0L or 2.3L L4 engines from 2012 to 2018 who want to enhance their vehicle’s performance and fuel efficiency. If you are looking for reliable and durable spark plugs that offer superior ignition and longevity, this product is designed specifically for you.
Pros:
- High-quality Iridium IX electrodes for improved durability and performance
- Compatible with Ford Focus 2.0L and 2.3L L4 engines (2012-2018)
- Enhances fuel efficiency and engine ignition reliability
- Manufactured by Sixity Auto, ensuring trusted build quality
- Compact dimensions (3.32” height, 0.94” width, 3.7” length) for easy installation
Cons:
- Only compatible with specific Ford Focus models and engine sizes
- May require professional installation for some users
- Relatively higher price compared to standard spark plugs
The NGK Iridium IX spark plugs feature a fine iridium tip that ensures a strong and consistent spark, which leads to better combustion efficiency. This technology not only improves throttle response but also reduces misfires and emissions, making it a smart choice for those focused on optimal engine performance. The spark plugs’ design minimizes electrode wear, extending the service life and reducing the need for frequent replacements.
Additionally, these spark plugs are engineered to fit perfectly with the Ford Focus 2.0L and 2.3L L4 engines from 2012 to 2018, guaranteeing a smooth and hassle-free installation. The improved ignition provided by these plugs results in better fuel economy and smoother acceleration, enhancing your driving experience. Overall, the Sixity Auto NGK Iridium IX spark plugs offer a balance of durability, compatibility, and enhanced engine performance for Ford Focus enthusiasts.
Ngk Iridium Ix Spark Plug

The 4 New NGK IRIDIUM IX Spark Plug LTR6IX-11 # 6509 is ideal for automotive enthusiasts and professionals seeking reliable and high-performance ignition components. If you want to enhance your vehicle’s engine efficiency, improve fuel economy, and enjoy smoother starts, this spark plug is designed specifically for you. Perfect for those who prioritize durability and consistent engine performance, these spark plugs are an excellent upgrade for many gasoline engines.
Pros:
- Enhanced ignition performance with iridium tip for better spark and combustion.
- Long-lasting durability compared to standard spark plugs.
- Improved fuel efficiency and reduced emissions.
- Precision manufacturing by NGK Spark Plug, a trusted brand in the industry.
- Compact dimensions (Height: 0.91 inches, Width: 3.94 inches, Length: 3.94 inches) making it suitable for various engine designs.
Cons:
- Higher price point than conventional spark plugs.
- May require professional installation for optimal performance.
The NGK IRIDIUM IX LTR6IX-11 spark plugs feature an ultra-fine iridium tip that ensures a stronger and more reliable spark. This results in more efficient combustion, leading to enhanced engine responsiveness and smoother acceleration. The innovative design reduces electrode wear, significantly extending the spark plug’s lifespan compared to traditional copper plugs. Users benefit from consistent ignition performance that translates into better overall engine health and reliability.
Additionally, these spark plugs contribute to improved fuel economy by optimizing the combustion process, which also helps reduce harmful exhaust emissions. Their precise dimensions and lightweight design (weighing just 0.44 pounds) ensure compatibility with various vehicle models without adding unnecessary bulk. Manufactured by the reputable NGK brand, these spark plugs meet high-quality standards, providing users with confidence in their engine maintenance choices.
Ngk Iridium Ix Spark Plugs

The 4 pc NGK Iridium IX Spark Plugs are ideal for vehicle owners and mechanics who are looking to enhance the performance and reliability of their Ford Focus 2.0L and 2.3L L4 models from 2012 to 2017. These spark plugs are perfect for those who want improved ignition efficiency, better fuel economy, and longer-lasting engine components. If you prioritize consistent engine starts and smoother acceleration, this set is designed to meet those needs effectively.
Pros:
- High durability due to iridium construction which offers longer lifespan than standard plugs
- Improved ignition performance resulting in smoother engine starts
- Compatible specifically with Ford Focus 2.0L and 2.3L L4 engines from 2012-2017, ensuring perfect fit
- Enhanced fuel efficiency and reduced emissions
- Manufactured by Sixity Auto with precise dimensions for easy installation
Cons:
- May be priced higher than conventional spark plugs due to premium iridium material
- Installation may require professional assistance for inexperienced users
These NGK Iridium IX Spark Plugs feature a fine-wire iridium tip, which is known for its exceptional strength and heat resistance. This design improves spark efficiency, which leads to better combustion and overall engine performance. The precise engineering by Sixity Auto ensures that each spark plug matches the exact specifications needed for the Ford Focus models, making installation straightforward and reliable. The compact dimensions and lightweight design also contribute to the ease of handling and replacement.
By upgrading to these spark plugs, users can expect enhanced throttle response and more consistent engine power. The iridium material helps minimize wear and tear, extending the service interval and reducing maintenance costs over time. Additionally, the improved ignition process contributes to better fuel economy and lower emissions, making these spark plugs a smart choice for environmentally-conscious drivers seeking both performance and efficiency.
Ngk Iridium Ix Spark Plug

The NGK Iridium IX Spark Plug LTR6IX-11 (4 Pack) is ideal for car enthusiasts and everyday drivers who own a FORD FOCUS ST 2013-2014 2.0L/122 model and seek reliable ignition performance. This product is perfect for those looking to enhance their vehicle’s efficiency, improve fuel economy, and maintain optimal engine health with high-quality spark plugs.
Pros:
- Superior Ignition Performance thanks to iridium tip technology
- Long-lasting durability reducing the need for frequent replacements
- Improved fuel efficiency and smoother engine operation
- Easy installation with precise fit for FORD FOCUS ST models
- Reduced emissions contributing to a cleaner environment
Cons:
- Higher price point compared to standard spark plugs
- May require professional installation for beginners
The NGK Iridium IX Spark Plug LTR6IX-11 features a fine-wire iridium center electrode that ensures consistent and strong spark ignition, which is crucial for the 2.0L engine of the FORD FOCUS ST. This advanced technology enhances combustion efficiency, resulting in better throttle response and engine power. The spark plug’s robust construction also offers excellent resistance to wear and corrosion, making it a dependable choice for long-term use.
Additionally, the compact dimensions (3.32 inches height, 0.94 inches width, and 3.7 inches length) and lightweight design (0.44 pounds) make the spark plugs easy to handle and install. Users will benefit from improved fuel economy and reduced exhaust emissions, helping them save on fuel costs while minimizing their environmental impact. Overall, this product combines performance, durability, and efficiency, making it a smart upgrade for FORD FOCUS ST owners.
Frequently Asked Questions
What Makes Ngk Iridium Ix Spark Plugs Ideal For Focus St?
NGK Iridium IX spark plugs offer superior durability and performance. They enhance ignition efficiency, improving fuel economy and engine response in Focus ST models. Their fine iridium tips provide better spark and longer lifespan compared to standard plugs.
Are Ngk Iridium Ix Plugs Compatible With All Focus St Engines?
Yes, NGK Iridium IX plugs fit Ford Focus ST 2. 0L and 2. 3L engines from 2012 to 2018. They are designed specifically for these models, ensuring proper fit and optimal performance without modifications.
How Often Should I Replace Ngk Iridium Ix Spark Plugs?
Replace NGK Iridium IX spark plugs every 60,000 to 100,000 miles. Their iridium construction allows longer service life than conventional plugs, maintaining reliable ignition and engine efficiency over time.
Do Ngk Iridium Ix Plugs Improve Fuel Efficiency?
Yes, these spark plugs improve combustion efficiency, resulting in better fuel economy. Their precise spark delivery reduces misfires and incomplete combustion, helping the Focus ST run cleaner and use less fuel.
Can Ngk Iridium Ix Plugs Enhance Engine Performance?
Absolutely. NGK Iridium IX plugs provide stronger, more consistent sparks. This boosts throttle response, smooths engine operation, and can slightly increase horsepower in the Focus ST.
Conclusion
Choosing the right spark plugs can improve your Focus ST’s engine performance and fuel efficiency. NGK Iridium IX spark plugs are reliable and fit well with various Focus ST models from 2012 to 2018. These plugs provide better ignition, smoother starts, and longer life compared to standard plugs.
Installing high-quality spark plugs like the NGK 6510 LTR7IX-11 or LTR6IX-11 can help your car run cleaner and maintain power. Regular replacement ensures your engine works properly and avoids misfires or rough idling. Remember, using the correct spark plug type is key for optimal Focus ST performance.
Keep your car in top shape by choosing trusted spark plugs designed for your model. The right spark plugs make a noticeable difference, giving your Focus ST a strong and steady drive every time. Quality matters for lasting engine health and smooth rides.

My name is Max langon and I am the founder of automothrone.com website. From this website, you will get automotive related information

