7 Best Spark Plugs For Hyundai Tucson Tested 2025

When I first bought my Tucson, I knew maintenance would be key to longevity. Replacing spark plugs is one of those crucial jobs that directly affects everything from gas mileage to engine smoothness. After logging thousands of miles and testing various components, I wanted to share my findings on what truly offers the best performance and value. This guide compiles the 7 best spark plugs for hyundai tucson, focusing on ignitability, fuel economy, and durability, ensuring your crossover runs smoothly for years to come.

IMAGE	PRODUCT NAME	AMAZON LINK
	A-Premium Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	Double Iridium Spark Plug Compatible with 2010-2018 HYUNDAI…	View on Amazon
	A-Premium Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	KacuYelin UF651 Ignition Coil Pack & Iridium Spark Plugs…	View on Amazon
	BDFHYK Set of 4 Iridium Spark Plug Compatible with…	View on Amazon
	A-Premium Set of 4 Ignition Coil Pack (2-pin) and Iridium…	View on Amazon
	Ignition Coil Pack with Iridium spark plug for Kia Soul…	View on Amazon

A-Premium Iridium Platinum Spark Plugs Compatible with Honda CR-V, Civic, Accord, Crosstour & Hyundai Elantra, Elantra Coupe/GT, Sonata, Santa Fe, Santa Fe Sport, Tucson, Venue & Kia Soul, Pack of 4

This A-Premium set provides reliable performance using a robust Iridium center electrode paired with a Platinum core, a classic combination engineered for endurance. If you prioritize long service intervals, this set is recommended for replacement at 80,000 to 100,000 miles, making them a great fit-it-and-forget-it option for modern L4 Tucson engines (2.0L). They are designed to meet OE specifications, ensuring a stable idle and strong ignition performance right out of the box. The gap size is precisely set at 0.044 IN, minimizing the need for manual adjustment.

Key features that stand out:
– Material Durability: Iridium tip combined with a Platinum core for excellent heat management and wear resistance.
– Longevity: Engineered for mileage intervals up to 100,000 miles.
– Wide Fitment: Compatible with a range of 1.8L, 2.0L, and 2.4L Hyundai/Kia engines found in recent Tucson models.

Pros:
– Exceptional lifespan reduces maintenance frequency.
– Reliable ignition helps maintain good fuel efficiency.
– OE-level fit and finish.

Cons:
– Only includes plugs, not coil packs, requiring a separate purchase for a full tune-up.

Best for: Tucson owners seeking maximum longevity and extended service intervals in their standard L4 engine.

Expert Opinion: This set is a dependable choice for general maintenance. The Platinum/Iridium blend offers reliable performance characteristics that many major manufacturers use as their factory benchmark.

Double Iridium Spark Plug Compatible with 2010-2018 HYUNDAI Elantra Tucson Azera SANTA FE/Kia Sorento Forte Sedona Rondo Soul Cadenza/Honda Civic Insigth/ACURA ILX 9723 SILZKR7B11 (Pack of 4)

These double iridium plugs are a direct, high-quality replacement for the critical NGK 9723 OE number (SILZKR7B11), which is popular across many Hyundai models, including the 2.0L Tucson. Double iridium means both the center electrode and the ground electrode feature iridium, offering superior wear protection and a consistent, stable spark over time. Users often report superior cold-start performance and significantly reduced engine shaking due to the exceptional ignitability these plugs provide.

Key features that stand out:
– Double Iridium Construction: Offers the longest possible working life, rated up to 100,000 kilometers (approx. 62,000 miles).
– Smooth Operation: Specifically designed to provide superior cold-start performance and a smoother running engine.
– Direct OE Replacement: Matches critical OEM numbers like 18846-11070 for guaranteed fitment.

Pros:
– Highly consistent, powerful spark for improved acceleration.
– Exceptional resistance to fouling and wear.
– Reduces vehicle idling and shaking caused by faulty plugs.

Cons:
– The lifespan is rated in kilometers, which is slightly less than some 100k mile plugs.

Best for: Drivers looking for an exact OE match with guaranteed performance improvements, especially those noticing minor misfires or rough idling.

Expert Opinion: Double Iridium is a premium material choice. For those who want the absolute best spark plugs for hyundai tucson performance that closely mirrors or exceeds NGK’s performance standards, this set is tough to beat.

A-Premium Iridium Platinum Spark Plugs Compatible with Hyundai Sonata 2006-2010, Santa Fe 2007-2009, Tucson 2005-2009, Azera, Veracruz, Entourage, Tiburon & Kia Sorento, Sportage, Sedona, Pack of 6

This set is vital for owners of older generation Tucson models (2005-2009) that were equipped with the larger V6 2.7L engine. Since V6 engines require six spark plugs, this convenient pack provides the necessary quantity and the correct specifications (14MM thread diameter) for a complete service. Utilizing the trusted Iridium Platinum blend, these plugs are engineered to restore original performance and maintain the durability required by older, harder-working engines.

Key features that stand out:
– V6 Specific Kit: Comes in a pack of six, necessary for 6-cylinder Tucson models.
– Classic Fitment: Specifically targets the 2005-2009 V6 2.7L Tucson engine.
– Reliable Performance: Designed for longevity, recommending replacement between 80,000 and 100,000 miles.

Pros:
– Correct quantity for V6 engine service.
– Restores original V6 power and torque.
– Durable Iridium/Platinum construction.

Cons:
– Fitment is highly specific to older V6 models; double-check the year/engine.

Best for: Owners of 2005-2009 V6 2.7L Hyundai Tucson models needing a full replacement set.

Expert Opinion: It’s challenging to find high-quality iridium sets for these older V6 models. This A-Premium 6-pack is an excellent value proposition, ensuring consistent performance across all cylinders in the larger engine.

KacuYelin UF651 Ignition Coil Pack & Iridium Spark Plugs Compatible with Hyundai Elantra GT Coupe Tucson Kia Forte Soul 1.8L 2.0L L4 2011-2019 UF651 Coil Pack Sets of 4

Sometimes, changing the plugs isn’t enough; the ignition coils also degrade over time. The KacuYelin set solves this by providing four high-quality Iridium spark plugs alongside four UF651 ignition coil packs. This all-in-one approach is excellent for drivers who notice power loss or increased fuel consumption, as it optimizes the entire ignition process. They boast recovery performance that can improve fuel efficiency by 15%-20% by ensuring stable, high-voltage output to the new Iridium plugs.

Key features that stand out:
– 2-in-1 Value: Includes four coils and four plugs for a comprehensive tune-up.
– Performance Recovery: Targets issues like lack of power and increased fuel consumption.
– Quality Materials: Coils use imported German copper wire for high conductivity; plugs use 90% nickel content for rapid heat transfer.

Pros:
– Addresses both weak spark and insufficient voltage simultaneously.
– Significant potential for fuel efficiency improvement.
– Rigorously tested to OE standards.

Cons:
– Overkill if your existing coil packs are still functioning perfectly.

Best for: Tucson owners (2014-2020 L4 models) performing a major ignition system overhaul or troubleshooting persistent misfires.

Expert Opinion: When doing ignition work on a higher-mileage vehicle, replacing the coils simultaneously with the best spark plugs for hyundai tucson is highly recommended. This KacuYelin package offers great peace of mind and excellent material quality in the coils.

BDFHYK Set of 4 Iridium Spark Plug Compatible with Hyundai Elantra Tucson,Compatible with Acura ILX TSX,Civic CR-V Accord, Forte Soul, Cooper Countryman 1.6L 1.8L 2.0L 2.4L Engine Replacement for 3461

The BDFHYK Iridium set is a solid choice focused purely on immediate ignition performance and robustness. These plugs utilize fine iridium electrodes for superior ignition jumps and quicker starts. A standout feature is the high alumina ceramic insulator, which provides high density and excellent thermal resistance, crucial for handling the high temperatures in modern direct-injection engines. While their economic service life (30,000–40,000 kilometers) is shorter than the 100k mile plugs, they offer fantastic performance and value for their price point.

Key features that stand out:
– Superior Ignition Performance: Faster and more sensitive ignition jumps for quick acceleration.
– High Alumina Ceramic: Ensures stable thermal conductivity and robust insulation against heat stress.
– Wide Engine Compatibility: Suitable for 1.6L, 1.8L, 2.0L, and 2.4L engines found in various Tucson years.

Pros:
– Instantaneous improvement in throttle response.
– Strong insulation properties maintain efficiency under stress.
– Excellent budget-friendly iridium option.

Cons:
– Requires more frequent replacement than ultra-long-life iridium plugs.

Best for: Drivers focused on budget-conscious maintenance who prioritize improved power performance during the service life of the plug.

Expert Opinion: These plugs are engineered for immediate responsiveness. Although the lifespan isn’t as long as some premium options, they deliver powerful combustion efficiency throughout their useable life.

A-Premium Set of 4 Ignition Coil Pack (2-pin) and Iridium Spark Plugs Compatible with Hyundai Elantra 2012-2016 1.8L 4 Cyl, Tucson 2014-2020 2.0L 4 Cyl & Kia Soul 2012-2019 2.0L 4 Cyl

If you trust the A-Premium brand for quality but also need the convenience of a coil and plug combo, this specific set is an ideal match for the popular 2014-2020 2.0L L4 Tucson. This kit uses Iridium/Nickel composite plugs, leveraging the stability of nickel alongside the lifespan of iridium to offer improved fuel efficiency and a more stable idle speed. The coils are designed with a 2-pin blade terminal that matches OE specifications (UF-651), ensuring a flawless plug-and-play installation.

Key features that stand out:
– OE-Specific Coils: Uses the correct 2-pin connector and UF-651 reference number for common Hyundai/Kia L4 engines.
– Iridium+Nickel Plug: Extends the plug life threefold compared to standard nickel plugs, ensuring super performance.
– Full System Refresh: Addresses potential misfires caused by weak coils or worn-out plugs simultaneously.

Pros:
– Reliable brand for ignition components.
– Guarantees correct coil and plug specifications for the listed Tucson models.
– Leads to faster starting up and a smoother ride.

Cons:
– The Iridium+Nickel construction might not last as long as pure Double Iridium options.

Best for: Tucson owners preferring a reputable brand for a complete, integrated ignition system replacement.

Expert Opinion: This set hits the sweet spot between value and reliability. The integration of the plug material with the coil specifications ensures the best electrical output and plug endurance for those specific 2.0L engines.

Ignition Coil Pack with Iridium spark plug for Kia Soul Forte Forte5 Hyundai Tucson Elantra Elantra GT (1.8L 2.0L ONLY) 2011-2016 Replacement for UF651 5C1861 C1804 1788511 273002E000(4 set)

This coil and plug combination focuses heavily on component quality, promising that the ignition coil uses high-grade copper wire imported from Germany for maximum electrical resistance and stability. The philosophy here is that a robust coil reduces the stress (overload) on the spark plug, thereby protecting the entire engine and extending the service life of both components. By ensuring a strong, consistent spark, this system helps efficiently burn gasoline, translating to better power and lower emissions.

Key features that stand out:
– Premium Coil Materials: German-imported copper wire ensures high conductivity and durability under extreme conditions.
– Engine Protection: Designed to prevent plug overload, extending the lifespan of the plugs and the engine.
– 12-Month Quality Guarantee: Confidence in the product backed by a straightforward exchange policy.

Pros:
– Coils are built for extreme durability and stability.
– Improves combustion efficiency significantly.
– High-quality materials aim to make the car run “like new again.”

Cons:
– Requires careful installation to ensure the warranty remains valid.

Best for: Drivers prioritizing the longevity and material quality of the ignition coil alongside a high-performance iridium plug.

Expert Opinion: The focus on high-quality coil materials is commendable. A weak coil is often the unseen culprit behind poor spark plug performance, so addressing the coil quality upfront is a smart long-term investment.

Comparison: Choosing the Best Spark Plugs For Your Hyundai Tucson

When sifting through these options, the choice usually boils down to maintenance strategy: are you replacing just the plugs, or the entire ignition system?

The primary distinction is between Iridium-Platinum plugs for maximum longevity (like the A-Premium single plug sets) or Coil/Plug kits for comprehensive tune-ups (like KacuYelin or A-Premium Coil Sets). If your Tucson has over 80,000 miles and you’ve never touched the coils, opting for a combo kit offers better overall preventative maintenance.

For modern L4 engines (2014+), the Double Iridium Spark Plug set offers perhaps the most robust individual plug, with dual iridium points guaranteeing the longest interval between replacements and superior ignitability.

Owners of older (2005-2009) V6 Tucsons should specifically seek out the 6-pack A-Premium option designed for those larger engines, as 4-packs will not be sufficient. Always confirm the OE reference numbers (like SILZKR7B11 or UF651) provided in the product listings match your current vehicle specifications before purchasing.

Final Verdict: Our Top Recommendations

Selecting the best spark plugs for hyundai tucson depends entirely on your vehicle’s age and mileage needs.

Best Overall Longevity (Plug Only): The Double Iridium Spark Plug Compatible with 2010-2018 HYUNDAI Elantra Tucson provides the most consistent, long-lasting performance thanks to its dual iridium construction and direct OE matching.

Best for Comprehensive Tune-Up (Value Combo): If you are experiencing coil issues or simply want a full system refresh, the A-Premium Set of 4 Ignition Coil Pack and Iridium Spark Plugs offers a perfect balance of trusted brand reliability and integrated components for 2014-2020 L4 models.

Best for Older V6 Models: The A-Premium Iridium Platinum Spark Plugs Pack of 6 is the indispensable choice for 2005-2009 V6 Tucson owners, delivering the correct count and quality required for those specific engines.

Best Spark Plugs For Hyundai Tucson FAQ

Q1: When should I change my Tucson’s spark plugs?

Most modern Hyundai Tucson models equipped with factory iridium or platinum plugs are recommended for replacement between 80,000 and 100,000 miles. However, if you are experiencing performance issues like engine misfires, poor acceleration, or reduced fuel efficiency, you should inspect and replace them sooner.

Q2: What is the primary difference between Iridium and Platinum spark plugs?

Iridium is significantly harder and has a higher melting point than Platinum, allowing it to be used in finer electrode tips. This finer tip requires less voltage to fire and offers better ignitability. Iridium plugs generally offer the longest service life, often exceeding 100,000 miles, making them the best spark plugs for hyundai tucson for long maintenance intervals. Platinum plugs are still durable but typically last 60,000 to 80,000 miles.

Q3: Can faulty spark plugs cause poor fuel efficiency?

Yes, absolutely. Worn-out or fouled spark plugs create an inefficient ignition process, leading to incomplete combustion of the air/fuel mixture. The engine compensates by requiring more gasoline to maintain speed, resulting in noticeably lower fuel economy. Replacing them with quality plugs helps restore proper combustion and improve mileage.

Q4: Should I replace my coil packs when changing my best spark plugs for hyundai tucson?

It depends on the mileage and symptoms. If your vehicle has over 80,000 miles or is experiencing intermittent misfires (especially under load), it’s often cost-effective to replace the ignition coil packs simultaneously. Weak coils can stress new spark plugs, leading to premature failure. Combo kits (like KacuYelin or A-Premium sets) offer convenience and good value for a full ignition system refresh.

Q5: Do I need to gap my new iridium spark plugs before installing them in my Tucson?

Generally, no. Premium iridium or platinum plugs are typically pre-gapped by the manufacturer for the specific vehicles they fit, like the Hyundai Tucson. Attempting to manually adjust the gap can damage the fine iridium tip. Always check the required gap in your owner’s manual against the plug’s specification, but avoid gapping unless absolutely necessary.

Q6: How do I know if my Tucson needs new spark plugs?

Common signs that your vehicle needs new spark plugs include: difficulty starting the engine, rough idling or shaking, noticeable hesitation or lack of power during acceleration, and the “Check Engine” light illuminating due to confirmed engine misfires. These are all signs that your existing plugs are struggling to provide a consistent spark.