5 Best Spark Plugs For Subaru Crosstrek 2026: Expert Picks

List of 5 Best Best Spark Plugs For Subaru Crosstrek

Image	Title	Best For	Link
	Subaru 22401AA781 Spark Plugs	The genuine oem subaru spark plugs (4-pack) for forester, impreza, legacy, crosstrek 2011-2017… more	View on Amazon
	NGK 93482 Platinum Iridium Spark Plugs	The ngk 93482 platinum iridium spark plugs (4-pack) for subaru 2.0l 2.5l h4 engines (2011-2018)… more	View on Amazon
	NGK Laser Iridium Spark Plugs	The ngk laser iridium spark plugs (4-pack) for 2018-2020 subaru crosstrek 2.0l h4 engine offers… more	View on Amazon
	NGK 93501 LKAR7BIX-11S Iridium IX Spark Plug	The ngk 93501 lkar7bix-11s iridium ix spark plugs (4-pack) for optimal engine performance offer… more	View on Amazon
	A-Premium Double Iridium Spark Plugs	The a-premium double iridium spark plugs (4-pack) for subaru impreza & crosstrek 2.0l engines (… more	View on Amazon

Detailed Reviews

This section provides in-depth reviews of each top-rated spark plug for the Subaru Crosstrek. We’ll examine their key features, discuss their benefits, and identify the ideal drivers and vehicle compatibility for each option. Understanding these details will empower you to select the spark plugs that best match your Crosstrek’s specific needs and your driving habits, ensuring peak performance and reliability.

The Genuine OEM Subaru Spark Plugs are the go-to choice for those who prioritize factory-standard performance and reliability. These 22401AA781 spark plugs are engineered specifically for a range of Subaru models from 2011-2017, including the 2013-2016 Crosstrek 2.0L non-turbo. By choosing OEM, you’re investing in parts designed to meet Subaru’s stringent quality and performance specifications, ensuring an exact fit and seamless integration with your engine’s existing systems.

These spark plugs deliver consistent ignition, which is vital for maintaining optimal fuel efficiency and smooth engine operation. They offer outstanding durability and reliability, making them perfect for daily use. While they might not boast the advanced materials of some aftermarket iridium plugs, their proven performance and direct compatibility make them a safe and effective choice for keeping your Crosstrek running as intended by the manufacturer.

The NGK 93482 Platinum Iridium Spark Plugs are an excellent choice for a broad range of Subaru vehicles, including various Crosstrek models from 2011-2018. Crafted from high-quality alloy and superior ceramic materials, these plugs are built for strength, stability, and durability, promising to reduce your replacement costs over time. Their construction ensures reliable performance even under demanding conditions.

What truly sets these NGK plugs apart is their superior ignition performance. They offer a more sensitive and efficient spark, which translates to reduced energy waste during ignition and contributes to better fuel economy and smoother engine operation. With OE Part Numbers SILZKAR7B11 and 93482, they are designed to meet or exceed original equipment specifications, providing a dependable aftermarket solution for a wide range of Subaru 2.0L and 2.5L H4 engines.

The NGK Laser Iridium Spark Plugs are precisely engineered for newer Subaru Crosstrek models, specifically the 2.0L H4 engine from 2018 to 2020. This 4-pack of genuine NGK parts offers exceptional quality and performance tailored to these specific vehicles. Laser Iridium technology is known for providing superior ignitability and a longer lifespan compared to traditional spark plugs, ensuring your Crosstrek maintains its peak efficiency and power output for extended periods.

These plugs are a direct replacement, designed to integrate seamlessly with your Crosstrek’s engine system. The inclusion of original packaging and hardware further assures authenticity and proper installation. Choosing these NGK Laser Iridium plugs means investing in optimal engine performance, improved fuel economy, and reliable starts, making them a smart choice for owners of compatible Crosstrek models who seek the best for their vehicle’s long-term health and efficiency.

The NGK 93501 LKAR7BIX-11S Iridium IX Spark Plugs are designed for performance enthusiasts, offering exceptional ignitability and responsiveness for your Subaru Crosstrek. These plugs feature a fine 0.6-millimeter laser-welded iridium tip, which ensures a consistently stable spark and remarkable durability against high heat and electrical wear. This advanced construction translates into improved throttle response and superior anti-fouling characteristics, keeping your engine running cleaner and more efficiently.

Beyond the tip, these spark plugs boast a thoughtful design: a tapered ground electrode minimizes electrical quenching, a longer insulator nose helps prevent fouling, and corrugated ribs on the insulator prevent flashover. The triple gasket seal eliminates combustion gas leakage, further enhancing reliability. Additionally, Trivalent Metal Plating provides excellent anti-corrosion and anti-seizing properties, making installation and future removal easier. These Iridium IX plugs are built to withstand the demands of modern high-performance engines, making them a worthy upgrade for your Crosstrek.

The A-Premium Double Iridium Spark Plugs offer an exceptional blend of performance and longevity for Subaru Crosstrek and Impreza 2.0L engines from 2017 to 2020. Featuring iridium on both the center and ground electrodes, these plugs provide an incredibly strong and consistent spark, leading to outstanding ignitability and efficient combustion. This double iridium design ensures maximum ignition performance, directly contributing to smoother idling, quicker acceleration, and improved fuel economy.

One of the standout benefits of these A-Premium spark plugs is their extensive mileage range, recommended for replacement between 100,000 to 120,000 miles. This extended lifespan reduces the frequency and cost of maintenance, offering great value over time. Factory gapped at 0.032″, they are ready for installation, simplifying the replacement process. With specific fitment for Crosstrek 2018-2020 and Impreza 2017-2020 2.0L H4 engines, these plugs are a reliable and cost-effective choice for modern Subaru owners.

Complete buying guide for Best Spark Plugs For Subaru Crosstrek

Types of Spark Plugs

Spark plugs primarily come in a few types: copper, platinum, and iridium. Copper plugs are excellent conductors but have a shorter lifespan. Platinum plugs offer better durability and performance than copper. Iridium plugs, like many we’ve reviewed, are the most advanced, providing the smallest electrode, longest life, and most consistent, powerful spark. For a Subaru Crosstrek, especially newer models, iridium plugs are generally recommended due to their superior performance and extended service intervals.

Compatibility and Fitment

Always check the specific year, make, model, and engine size of your Subaru Crosstrek before purchasing spark plugs. Even within the same model, different engine variants or year ranges can require different plug specifications. Using the wrong spark plug can lead to misfires, reduced fuel efficiency, or even engine damage. Refer to your owner’s manual or use online compatibility checkers provided by manufacturers.

Gap Size

The gap between the spark plug’s electrodes is critical for optimal performance. While many modern iridium plugs come pre-gapped, it’s always wise to double-check and adjust if necessary, according to your Crosstrek’s specifications. An incorrect gap can lead to weak sparks, misfires, or premature wear. Always use a proper gapping tool, and be gentle with iridium plugs to avoid damaging the fine tip.

Replacement Intervals

Subaru generally recommends replacing spark plugs every 60,000 miles for standard plugs and up to 100,000-120,000 miles for iridium plugs. However, driving conditions, fuel quality, and engine health can affect this. Regular maintenance checks can help determine if replacement is needed sooner. Adhering to these intervals ensures your engine continues to run smoothly and efficiently.

Signs of Worn Spark Plugs

If your Crosstrek’s spark plugs are nearing the end of their life, you might notice several symptoms. These include reduced fuel economy, engine misfires or rough idling, difficulty starting the vehicle, slow acceleration, or a general loss of power. Addressing these signs promptly with new spark plugs can prevent further engine issues and restore your vehicle’s performance.

Frequently Asked Questions

How often should I replace the spark plugs in my Subaru Crosstrek?

For most Subaru Crosstrek models, especially those using platinum or iridium spark plugs, the recommended replacement interval is typically between 60,000 to 100,000 miles. Always check your vehicle’s owner’s manual for the precise recommended schedule for your specific year and engine type.

What type of spark plug is best for a Subaru Crosstrek?

Iridium spark plugs are generally considered the best choice for Subaru Crosstreks. They offer superior ignitability, enhanced fuel efficiency, and a significantly longer lifespan compared to traditional copper or platinum plugs. Many Crosstreks come with iridium plugs from the factory, making them an ideal replacement.

Can I replace the spark plugs myself on my Crosstrek?

Replacing spark plugs on a Subaru Boxer engine, including the Crosstrek, can be a bit more challenging than on inline engines due to limited access. While it’s possible for experienced DIYers, it often requires special tools and careful attention to torque specifications. If you’re unsure, it’s always best to consult a professional mechanic.

What are the benefits of upgrading to premium spark plugs?

Upgrading to premium iridium or double iridium spark plugs can offer several benefits: improved engine performance, better fuel economy, quicker starts, smoother idle, reduced emissions, and a significantly longer service life, minimizing maintenance frequency.

Conclusion

Selecting the best spark plugs for your Subaru Crosstrek is a vital part of its maintenance, directly influencing its performance, efficiency, and longevity. Whether you opt for Genuine OEM plugs for guaranteed factory fit, or choose advanced iridium options from reputable brands like NGK or A-Premium for extended life and enhanced ignitability, the right choice will keep your Crosstrek running optimally.

Always prioritize compatibility with your specific model year and engine, and consider the benefits of advanced materials like iridium for long-term value. By making an informed decision, you’ll ensure your Subaru Crosstrek delivers the reliable and spirited performance you expect on every journey.