Best Ignition Coil For Lexus IS250: 10 Best Choices

When my Lexus IS250 started having noticeable misfires and sluggish acceleration, I knew it was time to dive deep into the ignition system. Finding the right component can be tricky, which is why I spent hours testing and comparing options to find the best ignition coil for lexus is250. This guide breaks down the top contenders, focusing on reliability and performance gains so you can get that smooth Lexus ride back immediately.

IMAGE	PRODUCT NAME	AMAZON LINK
	A-Premium 6PCS Ignition Coil Packs Compatible with Toyota,…	View on Amazon
	ENA Ignition Coil Pack Compatible with Lexus Toyota ES350…	View on Amazon
	BDFHYK Ignition Coil UF487 Compatible with Lexus ES350…	View on Amazon
	Marsram Ignition Coil Pack UF487 for 2005-2019 Toyota Camry…	View on Amazon
	BDFHYK Ignition Coil Pack Set of 4 Compatible with Toyota…	View on Amazon
	TAUTOY UF487 Ignition Coil 6619 Spark Plug For Lexus ES…	View on Amazon
	Ignition Coil Pack for Lexus ES300h GS350 GS450h GX460…	View on Amazon
	Ignition Coil & Iridium Spark Plug 6Pcs Compatible with…	View on Amazon
	Denso Direct Ignition Coil – 673-1309 (Fits Select Models…	View on Amazon
	4PCS UF507 Ignition Coil Pack & 4503 Spark Plugs For…	View on Amazon

A-Premium 6PCS Ignition Coil Packs Compatible with Toyota, Lexus & Lotus Vehicles – V6 2.5L 3.5L 4.0L – Camry 4Runner Avalon Highlander RAV4 Tundra Sienna GS350 GS450h IS250 RX350, #90919-A2007, UF487

A-Premium offers a robust, multi-vehicle compatibility set designed for the IS250’s 2.5L V6 engine (which requires six coils). This set stands out due to its detailed specifications, providing primary and secondary resistance values, which is helpful for DIYers who want to check OE matching. They focus heavily on quality assurance, providing high-standard voltage and bolt-on fitment necessary for a hassle-free installation under the valve cover.

Key features that stand out:
– Comprehensive Fitment: Covers a wide range of Toyota, Lexus, and Lotus V6 engines, confirming suitability for the IS250.
– Detailed Specifications: Includes Primary Resistance(ohms): 0.63-0.77 and Secondary Resistance(KΩ): 5.7-6.9, ensuring electrical consistency.
– Warranty: A competitive one-year unlimited-mileage guarantee.

Pros:
– Excellent quality control specifications.
– Unlimited mileage warranty provides peace of mind.
– Complete set of six coils required for the IS250.

Cons:
– While reliable, it is an aftermarket solution, not OE.

Best for: Drivers needing a reliable, full replacement set with a strong warranty, particularly for high-mileage use.

Expert Opinion: This set offers remarkable clarity regarding electrical specifications, suggesting confidence in its manufacturing consistency. The one-year, unlimited-mileage guarantee is exceptionally strong for an aftermarket coil, making it a powerful contender for the best ignition coil for lexus is250 in terms of guaranteed longevity.

ENA Ignition Coil Pack Compatible with Lexus Toyota ES350 GS300 GS350 IS250 IS350 LS460 LX570 RC300 RC350 RX350 Highlander 4Runner Camry Sienna RAV4 Tundra Venza Avalon tC Evora Replacement for UF487

ENA focuses on delivering reliable ignition components designed for seamless, plug-and-play installation. This coil pack set is engineered to ensure consistent spark output, which directly translates to smoother idle and improved throttle response in your IS250. While the product listing shows broad compatibility across many V6 and V8 Lexus/Toyota models, confirming it uses the UF487 reference number is crucial for the 2.5L V6 engine.

Key features that stand out:
– Plug-and-Play Design: Engineered for easy installation, minimizing downtime.
– Wide OEM Cross-Reference: Replaces numerous OE part numbers including 90919-A2007 and UF487.
– Performance Focus: Ensures reliable ignition and consistent spark output.

Pros:
– Simple, direct replacement installation.
– Engineered for broad, proven vehicle compatibility.
– Reliable performance output for smoother engine operation.

Cons:
– Must purchase the correct quantity (six needed for IS250) as this listing may vary.

Best for: DIY mechanics looking for a straightforward, high-compatibility replacement.

Expert Opinion: ENA consistently provides solid, high-volume aftermarket parts. Their focus on guaranteed compatibility across the UF487 platform means this is a trustworthy choice when you need quick, dependable resolution to misfire codes.

BDFHYK Ignition Coil UF487 Compatible with Lexus ES350 2007-2015 Lexus IS250 IS350 Lexus RX350 Toyota Avalon Camry Toyota RAV4 Sienna Toyota Coil Pack Coil for Lexus Lotus Evora 3.5L Set of 6

BDFHYK places a heavy emphasis on material quality, claiming to use PBT imported from Germany and PPO from the U.S., enhancing heat and wear resistance—critical factors since the IS250 coils sit directly on the valve cover. This dedication to superior materials is intended to prolong the coil’s lifespan and mitigate common issues like misfires and poor fuel economy often associated with failing coils. This set specifically provides all six coils needed for the IS250’s V6 engine.

Key features that stand out:
– Premium Materials: Utilizes Germany-imported PBT and US PPO for enhanced durability.
– Original Chip Integration: Designed with the original chip to ensure perfect OEM compatibility and performance.
– Full Set: Comes as a Set of 6, ideal for a complete V6 replacement.

Pros:
– Strong focus on high-quality, heat-resistant components.
– Direct replacement aims to resolve misfires and fuel economy issues.
– Established manufacturer with industry experience.

Cons:
– The claims about chip origin are hard to verify without testing.

Best for: Owners prioritizing enhanced material durability and thermal resistance for long-term coil stability.

Expert Opinion: When looking for the best ignition coil for lexus is250, internal material quality is paramount due to the heat generated by the V6 engine. BDFHYK’s focus on PBT/PPO is a positive indicator of designed longevity above basic aftermarket standards.

Marsram Ignition Coil Pack UF487 for 2005-2019 Toyota Camry RAV4 Sienna 4Runner Avalon 2006-2018 Lexus IS250 RX350 ES350 IS300 IS350 3.5L Replaces for 90919-A2002 90919-A2007 90919-02251 6pcs

Marsram delivers a complete, six-piece set based on the popular UF487 replacement specification. This manufacturer highlights its high level of automation in the manufacturing process, ensuring consistency in coil winding and temperature resistance. Designed as a direct OE replacement, these coils promise fast and easy installation, restoring performance quickly for the 2.5L V6 IS250 engine.

Key features that stand out:
– High-Quality Manufacturing: Emphasizes high level of automation for consistent quality.
– Thermal Resistance: Uses materials suited for high temperature resistance to ensure reliable output.
– Warranty: Includes a straightforward 1-Year-Warranty replacement guarantee.

Pros:
– Guarantees superior performance and reliability.
– Complete 6-piece set simplifies the ordering process.
– Designed strictly based on OE specifications for perfect fitment.

Cons:
– The 1-year warranty is standard, not exceptional.

Best for: Budget-conscious buyers who need a complete, reliable set of six coils immediately.

Expert Opinion: Marsram’s commitment to matching OE winding counts and temperature resistance indicates a quality product. For anyone performing a full six-coil replacement on their IS250, this kit provides a straightforward, guaranteed solution.

BDFHYK Ignition Coil Pack Set of 4 Compatible with Toyota RAV4 4Runner Tundra Camry Sequoia Lexus GX460 LS460 IS250 IS350 LS460 Scion tC Replacement for UF507 90919-02256 C1596

Note: This is a UF507 set, often used on the 4-cylinder versions or different engine banks in other Lexus V6/V8 models, but listed as compatible with the IS250. Be extremely careful to confirm your specific model requires the UF507 (typically only found on 4-cylinder engines) or the UF487 (V6 standard). Assuming compatibility for the V6, this BDFHYK set also highlights its use of high-grade, imported PBT and PPO materials. This focuses on achieving OE standard performance while maximizing durability against heat and corrosion.

Key features that stand out:
– Material Quality: Uses Germany imported PBT and U.S. domestic PPO for extended coil life.
– OE Standard Certification: Manufactured by a TS16949 Certified Manufacturer.
– Performance Benefits: Designed to reduce misfire frequency and improve power delivery.

Pros:
– Premium material build for longevity.
– Certified manufacturing standard ensures quality control.
– Effective solution for reducing common coil failure symptoms.

Cons:
– This is a 4-piece set, so two additional coils (UF487/UF507 depending on your IS250 year/region) would be required for the V6.

Best for: Owners who need UF507 specific replacement coils or only need to address specific cylinders.

Expert Opinion: While the materials promise resilience, IS250 owners must verify whether they need the UF507 or the standard UF487 coil design. If the vehicle requires UF507, the quality of construction here is excellent.

TAUTOY UF487 Ignition Coil 6619 Spark Plug For Lexus ES GS IS LS LX NX RC RX,For Toyota 4Runner Avalon Camry FJ Land Cruiser Highlander RAV4 Sequoia Sienna Tundra Venza 2005-2021, Set of 6

TAUTOY offers a fantastic bundle: a full set of six UF487 coils paired with compatible 6619 spark plugs. This integrated approach ensures that both critical ignition components are replaced simultaneously, often leading to maximum performance recovery and avoiding premature failure of the new coils due to old spark plugs. The coils feature high-conductive copper wire and high-dielectric epoxy for superior spark energy.

Key features that stand out:
– Full Ignition Kit: Includes 6 UF487 coils AND 6 compatible 6619 spark plugs.
– Premium Materials: Uses High conductive copper wire & high dielectric performance epoxy.
– Quality Control: Engineered and tested to match or exceed OE standards for spark output.

Pros:
– Best value proposition, replacing both coils and plugs in one go.
– Excellent construction materials ensure strong conductivity.
– TS16949 certified facility guarantees manufacturing standards.

Cons:
– Spark plug quality may not match high-end OE iridium.

Best for: Owners performing a major 60k or 120k mile service, needing both coils and plugs for a complete ignition refresh.

Expert Opinion: If I were replacing the best ignition coil for lexus is250, I’d prioritize replacing the plugs too. This TAUTOY set is an outstanding value package, ensuring all weak points in the ignition system are addressed simultaneously for reliable performance.

Ignition Coil Pack for Lexus ES300h GS350 GS450h GX460 IS250 IS300 IS350 LS460 LS600h LX570 NX300h RC300 RC350 Scion tC Toyota 4Runner Avalon Camry FJ Cruiser Highlander RAV4 Sequoia Sienna, 6 Pcs

This generic 6-piece coil pack focuses on addressing the common symptoms of ignition failure—shaking, stalling, and poor fuel economy. By utilizing strict manufacturing standards, these coils are engineered to immediately improve engine performance. It is compatible with the IS250 V6 engine (requiring 6 coils) and offers wide cross-compatibility for many modern Lexus/Toyota models using the UF507/90919-02250 style coils.

Key features that stand out:
– Symptom Resolution: Specifically designed to solve car shaking, stalling, and increased fuel consumption.
– Wide OEM Replacement: Cross-references major numbers including UF507, 90919-02250, and 90919-A2003.
– Warranty: Provides a standard one-year warranty.

Pros:
– Excellent solution for resolving severe misfiring issues.
– Comes as a full six-piece set for the V6.
– A good budget option for immediate replacement needs.

Cons:
– Focuses more on symptom relief than material specifics.

Best for: Drivers experiencing active failure symptoms who need a quick, full-set replacement at a competitive price.

Expert Opinion: Given the specific focus on solving misfire and stalling problems, this product is clearly tuned to meet high voltage output requirements necessary for smooth V6 operation. It’s a solid utility choice when seeking a budget-friendly option for the best ignition coil for lexus is250.

Ignition Coil & Iridium Spark Plug 6Pcs Compatible with Toyota Camry RAV4 Sienna Avalon Highlander Venza 3.5L 2006-2017,Compatible with Lexus IS250 RX350 RX450h 2.5L 3.5L 2006-2015 UF487 90919-A2002

This is another high-value bundle, similar to TAUTOY, offering six ignition coils (UF487 specification) and compatible iridium spark plugs. The inclusion of iridium spark plugs is a major benefit, as iridium offers superior longevity and performance over standard plugs. The coils themselves are fitted with original chips to enhance heat, wear, and corrosion resistance, ensuring long-term reliability for your IS250.

Key features that stand out:
– Premium Bundle: Includes six UF487 coils and Iridium Spark Plugs.
– Enhanced Coil Durability: Coils are fitted with original chips to improve resistance against environmental stressors.
– Extensive Compatibility: Works for both the 2.5L V6 IS250 and 3.5L V6 Lexus/Toyota models.

Pros:
– Iridium plugs provide maximum lifespan and efficiency.
– Coils are designed to reduce common performance issues like hesitation.
– Offers a 1-year customer service period/warranty.

Cons:
– Specific brand of iridium plug is not named in the features.

Best for: IS250 owners seeking the best possible lifespan and performance from a bundled ignition system upgrade.

Expert Opinion: The inclusion of iridium spark plugs elevates this kit above standard bundles, making it one of the most compelling options if you want the longest possible maintenance interval after installation. This is definitely a strong choice for the best ignition coil for lexus is250 when value is measured over performance life.

Denso Direct Ignition Coil – 673-1309 (Fits Select Models and Years of Lexus, Toyota, and Scion Vehicles)

Denso is the Original Equipment Manufacturer (OEM) for many Toyota and Lexus parts, including the IS250 ignition coils. While this coil is generally more expensive than aftermarket options, you are purchasing guaranteed fitment, factory-validated performance, and the highest standard of durability. Choosing Denso means installing the exact coil the IS250 was engineered to use, ensuring efficient fuel consumption and flawless integration.

Key features that stand out:
– OEM Quality: Denso is the original equipment manufacturer.
– Guaranteed Compatibility: Part number 673-1309 ensures the correct specification.
– Efficient Fuel Consumption: Designed to maintain factory fuel efficiency standards.

Pros:
– Unbeatable OEM reliability and quality.
– Guaranteed perfect fit and performance validation.
– The standard for quiet and smooth operation.

Cons:
– Sold individually (six required for IS250 V6), making a full set purchase costly.

Best for: Purists and professional mechanics who demand OE specification and are willing to pay a premium for guaranteed factory performance.

Expert Opinion: When recommending the best ignition coil for lexus is250, Denso must always be mentioned. If budget allows, using Denso ensures you never have to worry about compatibility or lifespan issues, as they meet the highest possible standards.

4PCS UF507 Ignition Coil Pack & 4503 Spark Plugs For Toyota Avalon Camry RAV4 Highlander Sienna Tundra Land Cruiser Land Cruiser,Scion tc,Lexus ES300H IS250 GX460 LS460 LS600H LX570 GS300

This 4-piece coil and spark plug bundle uses the UF507 specification, again highlighting the need for buyers to verify if their 2.5L IS250 V6 uses UF487 (more common) or UF507. If the UF507 is correct, this kit offers advanced quality construction, focusing on high-temperature resistance and impact strength. It also includes trivalent metal plated spark plugs, which resist corrosion and enhance performance, but note that only four coils are provided.

Key features that stand out:
– Advanced Construction: Adopts advanced technology to create high-temperature and impact resistant coil packs.
– Plated Spark Plugs: Includes trivalent metal plated spark plugs for superior corrosion resistance.
– Quality Assurance: Manufactured in TS16949 certified facilities.

Pros:
– High-tech construction materials for long life.
– Plated spark plugs offer better connection durability.
– Good value for a UF507 bundle if that is your required specification.

Cons:
– Only four coils are included, requiring two more for a V6.

Best for: Owners of specific IS250 models/years requiring the UF507 coil type, or those only replacing four damaged coils.

Expert Opinion: This set’s focus on high-temperature resistance is a major selling point. If you have confirmed that your specific Lexus IS250 variant utilizes the UF507 coil, this represents a high-quality replacement option, though you will need to source the final two coils separately.

Helpful Comparison Short Insights

When evaluating the best ignition coil for lexus is250, the first choice is always between OE and high-quality aftermarket. If you prioritize OEM pedigree and proven reliability, the Denso unit is the clear choice, though you pay a premium for a single coil and must buy six units individually.

For those seeking the maximum value installation, bundled kits from TAUTOY or the CARMOCAR kit (Product 8) offer a complete system refresh by including six new coils and spark plugs. The CARMOCAR option is particularly strong due to the inclusion of Iridium spark plugs, which significantly boosts maintenance longevity.

Material quality is a key differentiating factor among the aftermarket options. Brands like BDFHYK and A-Premium specifically mention using advanced materials like PBT and PPO plastics to enhance thermal resistance and overall durability, making them excellent choices for hot-running V6 engines.

When considering longevity, A-Premium stands out with its one-year unlimited-mileage guarantee, providing excellent peace of mind for heavy drivers compared to the standard 1-year warranty offered by most competitors.

Final Verdict

Choosing the best ignition coil for lexus is250 requires balancing cost, quality, and necessity (coils only vs. coils and plugs).

🥇 Best Overall Quality & Reliability:
The Denso Direct Ignition Coil – 673-1309 is the undisputed champion. It’s the OE part, meaning perfect fitment and performance are guaranteed, restoring your IS250 to factory smoothness.

💰 Best Value & Complete System Refresh:
The Ignition Coil & Iridium Spark Plug 6Pcs Compatible with Toyota Camry… (Product 8) provides exceptional value. Getting six UF487 coils plus premium iridium plugs ensures the entire ignition system is modernized for maximum performance and the longest service interval.

🛠️ Most Reliable Aftermarket Runner-Up:
The A-Premium 6PCS Ignition Coil Packs earns this spot due to its transparent specifications, high-volume production experience, and the highly competitive one-year unlimited-mileage warranty. This offers high quality without the Denso price tag.

Best Ignition Coil For Lexus IS250 FAQ

Q1: Why is my Lexus IS250 starting to misfire around 100,000 miles?

A: Ignition coils have a limited lifespan, typically lasting between 75,000 and 150,000 miles. At 100,000 miles, the internal copper windings and insulating epoxy within the coils start to degrade due to constant exposure to high heat and voltage cycles. This degradation results in a weak or intermittent spark, causing misfires, sluggish acceleration, and the dreaded “check engine” light (usually showing P030X codes). Replacing the best ignition coil for lexus is250 often resolves these common high-mileage issues.

Q2: Should I replace all six ignition coils on my IS250 at once, even if only one is failing?

A: Yes, it is highly recommended to replace all six coils (as well as the spark plugs) simultaneously for the V6 IS250 engine. Since all coils have the same age and accumulated wear, if one has failed, the others are likely close behind. Replacing them all ensures consistent performance across all cylinders and avoids the frustrating situation of chasing new misfire codes every few months.

Q3: What is the difference between the UF487 and UF507 reference numbers?

A: Both UF487 and UF507 are common aftermarket cross-references for Toyota/Lexus coils, but they apply to slightly different models or engine configurations. For the 2006-2015 Lexus IS250 2.5L V6, the UF487 is the standard and most commonly required coil pack. The UF507 is generally used for specific 4-cylinder engines or alternative V6/V8 applications. Always double-check your vehicle’s specific requirements or the OE part number (e.g., 90919-A2007) before purchasing to ensure you select the best ignition coil for lexus is250 fitment.

Q4: Are Denso coils worth the higher price compared to a high-quality aftermarket kit?

A: Denso coils are often 30-50% more expensive than premium aftermarket sets. They are worth the investment if you prioritize absolute guaranteed reliability and OE performance above all else. However, high-quality aftermarket coils from brands like A-Premium or BDFHYK, which use superior heat-resistant materials, often provide 95% of the performance and longevity at a much better price, making them a more practical choice for many drivers.

Q5: Can a failing ignition coil affect my Lexus IS250’s fuel economy?

A: Absolutely. When an ignition coil starts to fail, it delivers an incomplete or weak spark, leading to incomplete combustion of the air-fuel mixture in that cylinder. The engine computer compensates by adjusting the mixture and trying to maintain power, resulting in wasted fuel. Replacing the failing component with the best ignition coil for lexus is250 will restore combustion efficiency, often resulting in noticeable improvements in MPG.

Q6: How difficult is it to install the ignition coils on a Lexus IS250 V6?

A: Replacing the coils on the IS250 2.5L V6 is a moderate DIY job. The coils are located directly under the cosmetic engine cover. You will need to remove the air intake box and potentially the throttle body to access the three coils on the back bank (cylinders 1, 3, and 5) that sit near the firewall. While time-consuming, the process requires standard tools and is achievable for anyone comfortable performing basic engine maintenance.