Choosing a spark plugs for lexus rx series involves more than just looking at the price; features and everyday usability also matter.
We've listed 10 options to help you compare products and find one that matches your priorities.
Top 10 Best Spark Plugs for Lexus Rx Series
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Best in BudgetNGK 6619 Iridium Spark Plugs LFR6AIX-11-6 Pack
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1NGK 6619 Iridium Spark Plugs LFR6AIX-11-6 Pack
Best in Budget
- Iridium Spark Plugs
- Designed to operate over a much wider heat range than ordinary plugs
- Resists carbon buildup and pre-ignition
- Patented triple gasket sealing process eliminates the possibility of combustion gas leakage

2A-Premium Ignition Coil & Iridium Spark Plugs for Toyota Camry Highlander
Editor’s Pick
- [Vehicle Fitment]: Compatible with Lexus ES300/RX300 1999-2003 V6 3.0L, ES330/RX330 2004-2006 V6 3.3L, RX400h 2006-2008 V6 3.3L; Compatible with Toyota Avalon 2000-2004 V6 3.0L, Camry 2002-2006 V6 3.0L, Camry 2004-2006 V6 3.3L, Highlander 2001-2003 V6 3.0L, Highlander 2004-2008 V6 3.3L, Sienna 2001-2003 V6 3.0L, Sienna 2004-2006 V6 3.3L, Solara 2004-2008 V6 3.3L
- [Reference Number]: UF-267, UF267, 9091902234, 9008019016, 4420033480, 4589, 9008091181, 9091901211, 909190121179, 9091901238, IFR6T11
- [Specifications]: ①Coil Terminal Quantity: 4; ②Terminal Type: Blade; ③Mount Type: Bolt On; ④Mounting Location: Valve Cover; ⑤Voltage: 12V; ⑥Spark Plug Material: Iridium
- [Iridium spark plug]: Iridium is a type of refined alloy which is highly suitable to be used as the materials of the central electrode in a spark plug. It extends the life of the spark plug nearly threefold, ensures a more stable idle speed of the engine, and delivers a super performance to the engine with improved fuel efficiency, reduced emissions and faster starting up.
- [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted ignition coils and spark plugs kit. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.

3Iridium Spark Plugs 6 Pack, Pre-Gapped OEM Replacement for Toyota Camry Highlander Sienna Solara Lexus ES330 RX330 RX400h V6 3.3L
People’s Choice
- 【Fitment Tip】To ensure proper fit, please check your vehicle’s year, make, model, and engine type using Amazon Garage before purchase. WJAUTO Iridium spark plugs compatible with Toyota 2004-2006 Camry V6 3.3L,2004-2010 Highlander V6 3.3L,2004-2006 Sienna V6 3.3L,2004-2008 Solara V6 3.3L;Lexus 2004-2006 ES330 V6 3.3L,2004-2006 RX330 V6 3.3L,2006-2008 RX400h V6 3.3L
- 【Wide Compatibility – OEM Fit】WJAUTO Iridium spark plugs are OEM replacement parts designed for excellent engine performance and long-lasting ignition reliability.
- 【 Iridium Spark Plugs 】Each spark plug features a fine iridium Center Electrode Material that ensures faster ignition, better throttle response, and improved fuel efficiency—perfect for daily drivers and performance enthusiasts alike.
- 【 Long Life – Up to 80,000 km Service】 Built with premium iridium materials to resist High temperature resistance, improved combustion efficiency, fast ignition response, reduced carbon deposition, These spark plugs for cars can last up to 80,000 km, outperforming standard copper bujias or platinum options. Fewer replacements, more driving.
- 【 6-Pack Iridium Spark Plugs Set Replacement】 Comes in a convenient 6-pack, ideal for cylinder engines or complete spark plug replacements. Trusted by professional mechanics and DIYers for quality and reliability, giving you a complete replacement solution in one box.

4Iridium Spark Plugs 6 Pack 6619 LFR6AIX11 for 05-2018 Toyota Lexus 3.5 4.0
- [Reference Number]: 6619, LFR6AIX-11, LFR6AIX11, 1208, ILZFR6D11, 1483, LFR6CGP, 94122, LFR6AHXS, 7787, LFR6C11, 5987, PLZFR6A11S, XP5325, BY481LFR6A, MZ602091
- [Vehicle Fitment-1]: This automotive replacement spark plugs for Toyota Tacoma Tundra 4Runner V6 4.0 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015, Toyota FJ Cruiser 4.0L 2007-2013, Toyota Camry Sienna Highlander 3.5L 2007-2017, Toyota Avalon 3.5L 2005-2018, Toyota RAV4 3.5L 2006-2012, Toyota Venza 3.5L 2009-2016
- [Vehicle Fitment-2]: This oem spark plugs for Lexus ES350 RX350 V6 3.5L 2007 2008 2009 2010 2011 2012 2013 2014 2015,Lexus RX450h V6 3.5L 2010-2015 | Spark plugs for Subaru Outback Legacy H6 3.6L 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019, Subaru Outback H6 3.0L 2001-2004
- [Vehicle Fitment-3]: This spark plugs for BMW 128i 2008 2009, BMW 323i Z4 2006 2007 2009, 325i 325xi 330i 330xi 2006, BMW 328i X3 X5 2007 2008 2009, BMW 328xi 2007 2008, BMW 525i 525xi 530i 530xi 2006 2007, BMW 528i 528i xDrive 2008 2009 2010, BMW 528xi 2008. More details, please refer to the picture or description
- [Vehicle Fitment-4]: This spark plugs for Volvo S60 S80 V60 XC60 XC70 XC90 L6 3.0L 3.2L 2012 2013 2014 2015 2016 | for Saab 9-3 V6 2.8L 2006-2009, More details, please refer to the picture or description

56 pc NGK Iridium IX Spark Plugs compatible with Lexus RX350 3.5L V6 2007-15
- This 6 pack NGK Iridium IX Spark Plug is compatible with Lexus RX350 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007 3.5L V6
- Genuine NGK Parts
- Includes original packaging and hardware
- Direct replacement auto parts
- Confirm vehicle fitment with Amazon Confirmed Fit

6NGK 3764 Iridium Spark Plug BKR6EIX-11 – 6 PCSNEW
- Spark Plug
- Iridium Spark Plug
- Better Performance
- Good Brand Name NGK

7Ignition Coil Pack and Iridium Spark Plugs Kit Fit for Toyota 2007-2016 Sienna Highlander Avalon Camry RAV4 Venza Lexus RX350 ES350 RX450h 3.5L V6, Direct Replacement for UF487 6619 Set of 6
- FITMENT CHECK FIRST – Please verify year, make, model, engine, before purchase. Designed as a direct replacement ignition coil and iridium spark plug kit fit for selected Toyota & Lexus 3.5L vehicles, compatible with 2007-2018 ES350, 2007-2015 RX350, 2010-2015 RX450h, 2005-2018 Avalon, 2007-2017 Camry, 2008-2016 Highlander, 2006-2012 RAV4, 2007-2016 Sienna, 2009-2015 Venza. OE replacement numbers: UF487; 6619, LFR6AIX-11. Check the fitment list to avoid wrong purchases.
- HELPS ADDRESS IGNITION-RELATED SYMPTOMS – Worn ignition coils or spark plugs may cause engine misfire, rough idle, hard starting, hesitation, engine vibration, poor acceleration, or check engine light concerns. This coil pack and iridium spark plug set may help restore smooth ignition performance when these symptoms are caused by worn ignition components. Related diagnostic trouble codes may include P0300-P0308.
- PREMIUM COIL CONSTRUCTION & IRIDIUM PLUGS – Primary and secondary copper windings are fully wound for stable spark output. The OE-aligned PCB ignition module helps support reliable operation for listed applications. Epoxy-potted sealing helps resist heat, moisture, vibration, and internal arcing, while heat-resistant PBT housing adds extra protection for daily driving. Fine-wire iridium spark plugs are pre-gapped to support reliable ignition, efficient combustion, and smooth engine operation.
- COMPLETE IGNITION REPLACEMENT KIT – Includes 6 ignition coils and 6 pre-gapped iridium spark plugs for a more convenient tune-up. Replacing coils and spark plugs together helps reduce repeated repairs and separate part sourcing. Designed for direct replacement installation with basic tools. Factory pre-lubricated with green dielectric grease for true easy DIY install. Recommended spark plug torque: 18.44-22.13 ft·lb (25-30 N·m).
- QUALITY CHECKED & SUPPORT AVAILABLE – Each ignition coil undergoes a high-voltage test with 35±2KV secondary output voltage before shipping to help verify insulation strength and resistance to breakdown. Checked for stable operation, reliable fit, and dependable daily driving. Backed by a 2-year warranty and lifetime technical support. Email us with your VIN or vehicle information if you are unsure about compatibility.

8Ignition Coil Pack Spark Plugs Replacement for 3.5 V6 Toyota Sienna Avalon Camry Highlander Rav4 Venza Lexus RX350 ES350 RX450h 2007 2008 2009 2010 2011 2012 2013 2014 2015, 90919-A2007, UF487, 6pc
- Set of 6 Ignition coils spark plugs combo fit for 3.5L V6 2007 2008 2009 2010 2011 2012 2013 2014 2015 Toyota Sienna | 05-18 Toyota Avalon | 09-15 Toyota Venza | 07-16 Toyota Camry | 08-15 Toyota Highlander | 06-12 Toyota RAV4
- Set of 6 Ignition coils spark plugs combo fit for 3.5L V6 07 08 09 10 11 12 13 14 15 Lexus RX350 | 07-18 Lexus ES350 | 10-15 Lexus RX450h
- Ignition Coils Part Number: UF487 UF-487 90919-02255 90919-A2004 C1601 5c1658 E987 52-1894 Ic567 90919-A2002A 90919-A2002 90919-A2007 90919-02251 90919A2002 9191902251 673-1309 GN10366
- Package Includes: 6pcs coils & 6pcs pre-gapped spark plugs. Before the purchase, please check the Compatibility Chart of the listing to make sure the coils & plugs fit for your car
- NPAUTO coils pack and spark plug are designed and produced under high standards, with premium materials, which will meet or exceed OEM specifications. The coils pack and spark plugs can solve issues caused by failed coils and spark plugs like Engine Misfire, Hard to Start, Rough Engine Idle, Decrease in Power, Poor Fuel Economy etc

9Ignition Coil UF267 & Spark Plug 4504 Kit–Compatible with Lexus ES300 ES330 RX300 RX330 and Toyota Avalon Camry Highlander Sienna 3.0L & 3.3L V6 Engines–Replaces C1175(6 Coils & 6 Plugs)
- 【Vehicle Compatibility – Check Your Model】 Our ignition coil pack Compatible with Lexus ES300 1999-2003 3.0L V6, ES330 2004-2006 3.3L V6, RX300 1999-2003 3.0L V6, RX330 2004-2006 3.3L V6, RX400 2006-2008 3.3L V6; Our ignition coil pack Compatible with Toyota Avalon 2000-2004 3.0L V6, Camry 2002-2006 3.0L V6, Sienna & Highlander 2001-2003 3.0L V6, Camry & Sienna 2004-2006 3.3L V6, Highlander & Solara 2004-2008 3.3L V6. Verify engine size before purchase.
- 【Direct Fit OE Replacement】 Get everything in one box: 6 x UF267 Ignition Coils + 6 x 4504 Iridium Spark Plugs. This matched set ensures your ignition system works in perfect sync, eliminating guesswork. Replaces OEM: UF-267, 610-58572, 9091902234, 9008019016, COP265, 6731301, 5C1193, C1175, 1788315, 5057, E507C, E789, 52-1597, 4504, PK20TT, 99917022790, AGSP33C, BP0318110, BP0418110, BP1218110, EBC11480, F28518110, F28618110, JE4318110, JE4418110, KJ1118110, KJ1718110, MS851502, ZM0218110
- 【Symptoms This Kit Solves】 Struggling with engine misfires, rough idling, hesitation during acceleration, unusual engine operation noises, poor fuel economy, or an illuminated check engine light? Worn coils and spark plugs are often a common root cause among many possibilities. This kit restores stable high-voltage output across all RPM ranges, giving you smoother starts, more responsive throttle, and better gas mileage.
- 【Premium Materials for Longevity】 Coils built with high-grade silicon steel,German-imported copper windings,and Japanese epoxy resin–resistant to moisture,oil,and extreme heat for consistent spark energy. Spark plugs feature iridium-tipped electrodes and CNC-machined shells for precise spark, faster starts, and smoother acceleration. Isostatic ceramic insulators prevent voltage leaks and misfires,reducing engine wear,improving fuel efficiency,and delivering reliable performance mile after mile.
- 【Strict Quality Control】 Each coil and plug is tested to ensure stable voltage output under operating conditions. Kit includes: 6 coils, 6 spark plugs, and 1 installation manual. Ready to install out of the box – fits most models in under an hour, restoring smooth and reliable engine operation. Built to meet or exceed OEM standards for long-term durability.

106 pc NGK Laser Iridium Spark Plugs for Lexus IS350 3.5L V6 2006-17
- This 6 pack NGK Laser Iridium Spark Plug is compatible with Lexus IS350 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006 3.5L V6
- Genuine NGK Parts
- Includes original packaging and hardware
- Direct replacement auto parts
- Confirm vehicle fitment with Amazon Confirmed Fit
Final Thoughts
We've compared the features, benefits, and price points of each spark plugs for lexus rx series above so you can shop with more confidence. Pick the one that matches your needs, and always double-check the current price before ordering.
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