Lexus RX450h Spark Plugs

Your One-Stop Shop For Trusted Lexus RX450h Spark Plugs

If you’re in search of Lexus RX450h Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 23 Spark Plugs from top brands with prices ranging from $4.49 to $32.99.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your Lexus RX450h.

And don’t forget to read customer reviews across all Spark Plugs categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Spark Plugs have to cost top dollar, and we prove it. Browse our top Lexus RX450h Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential Lexus RX450h Spark Plugs

Victor Reinz – Victor Reinz Spark Plug Tube Seal Set, 18-10080-01 (Part No.18-10080-01)

Victor Reinz Spark Plug Tube Seal Set, 18-10080-01

from

$26.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Felpro – Felpro Spark Plug Tube Seal Set, ES 72701 (Part No.ES 72701)

Felpro Spark Plug Tube Seal Set, ES 72701

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$27.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IKH20TT, 4704 (Part No.4704)

DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IKH20TT, 4704

from

$15.49
Durability of an OE style plug combined with Power & Torque of high performance.
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Champion – Champion Double Platinum Power Spark Plug REC10PYPB4 – Enhanced Durability & Performance, 7975 (Part No.7975)

Champion Double Platinum Power Spark Plug REC10PYPB4 - Enhanced Durability & Performance, 7975

from

$9.19
Champion Double Platinum Power spark plugs combine a platinum fine-wire center electrode with platinum center and ground electrodes and exclusive Heat-Active alloy, ensuring powerful performance, longer service life and precise spark focus for optimal combustion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 5325 (Part No.5325)

Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 5325

from

$4.49
Autolite Copper spark plugs are designed to deliver reliable performance, ensuring quick starts and the power your vehicle demands. Featuring a copper core center electrode, these plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrodes provide extended life and durability. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, offering superior strength. With a corrosion-resistant nickel-plated shell, these spark plugs are built to withstand the test of time. Engineered for optimal fuel efficiency, they help you save on gas while delivering smooth acceleration for an improved driving experience. Meeting or exceeding Original Equipment Service (OES) design Standards, Autolite Copper spark plugs are a trusted choice backed by over a century of engineering expertise and the sale of over 11 billion plugs. Designed with a flat seat type and mid-projection standard electrode, these spark plugs are the industry standard for dependable performance.
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Autolite – Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP5325 (Part No.AP5325)

Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP5325

from

$5.49
Autolite Platinum spark plugs are crafted for superior performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, better acceleration, and improved fuel efficiency. The platinum firing tip resists gap erosion, extending service life, while the high alumina ceramic insulator enhances thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell offers exceptional corrosion resistance for long-lasting durability. Designed with a mid-projection standard center electrode and nickel ground electrode tip, these spark plugs deliver reliable performance under demanding conditions. Engineered in the USA with over a century of expertise and backed by the sale of over 11 billion plugs, Autolite Platinum spark plugs are a trusted choice for drivers seeking enhanced engine efficiency and durability.
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Autolite Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5325 (Part No.XP5325)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5325

from

$11.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IKBH20TT, 4705 (Part No.4705)

DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IKBH20TT, 4705

from

$18.49
Durability of an OE style plug combined with Power & Torque of high performance.
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Champion – Champion Copper Plus Spark Plug REC12MCC4 – Dependable Performance & Durability, 446 (Part No.446)

Champion Copper Plus Spark Plug REC12MCC4 - Dependable Performance & Durability, 446

from

$6.99
Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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DENSO – DENSO Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FK20HR11, 3426 (Part No.3426)

DENSO Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FK20HR11, 3426

from

$21.99
Manufactured to the strictest OE performance, durability and emissions standards.
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NGK – NGK Ruthenium HX Spark Plug (LFR6AHX-S): High Ignitability & Durability, 94122 (Part No.94122)

NGK Ruthenium HX Spark Plug (LFR6AHX-S): High Ignitability & Durability, 94122

from

$15.99
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug, Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.
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Champion – Champion Iridium Spark Plug REC10WMPB – Maximum Performance & Longevity, 9010 (Part No.9010)

Champion Iridium Spark Plug REC10WMPB - Maximum Performance & Longevity, 9010

from

$15.49
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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DENSO – DENSO Spark Plug Iridium Long-Life, 3491 (Part No.3491)

DENSO Spark Plug Iridium Long-Life, 3491

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$27.99
Manufactured to the strictest OE performance, durability and emissions standards.
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NGK – NGK G-Power Platinum Spark Plug (LFR6CGP): Enhanced Durability & Efficiency, 1483 (Part No.1483)

NGK G-Power Platinum Spark Plug (LFR6CGP): Enhanced Durability & Efficiency, 1483

from

$14.99
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.
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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power, Saves Gas, E3.68 (Part No.E3.68)

E3 DiamondFIRE Automotive Spark Plug: More Power, Saves Gas, E3.68

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$8.49
The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.68 is a 14mm, 1.000 reach plug with a gasket seat. It fits a wide variety of late model applications, especially Hemi applications. E3.68 is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.
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NGK – NGK Laser Iridium Spark Plug (DILFR6D11): High Ignitability & Durability, 6176 (Part No.6176)

NGK Laser Iridium Spark Plug (DILFR6D11): High Ignitability & Durability, 6176

from

$32.99
NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium High Ignitability spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Laser Iridium High Ignitability spark plugs feature raised platinum pad or platinum fine wire tip on the ground electrode for even wear in distributorless ignition systems and improved spark performance.
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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH20, 5344 (Part No.5344)

DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH20, 5344

from

$17.99
Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).
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NGK – NGK Iridium IX Spark Plug (LFR6AIX-11): Extreme Ignitability & Durability, 6619 (Part No.6619)

NGK Iridium IX Spark Plug (LFR6AIX-11): Extreme Ignitability & Durability, 6619

from

$17.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
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Bosch – Bosch OE Fine Wire Double Iridium Spark Plug, 9782 (Part No.9782)

Bosch OE Fine Wire Double Iridium Spark Plug, 9782

from

$8.69
BOSCH OE Fine Wire Double Iridium. All iridium plugs are NOT created equal. Give your customers the only one engineered for both high performance and long life. The ultra fine wire design and laser welded, tapered ground electrode deliver the ultimate in ignitability and high performance. The iridium-alloy center electrode firing pin and laser welded ground electrode with iridium alloy inlay help it to go the distance.
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Champion – Champion Iridium Spark Plug REC10WMPB4 – Maximum Performance & Longevity, 9775 (Part No.9775)

Champion Iridium Spark Plug REC10WMPB4 - Maximum Performance & Longevity, 9775

from

$12.99
Champion Iridium spark plugs combine a fine-wire iridium center with platinum ground electrodes to help any engine achieve top performance, regardless of ignition type. This advanced design ensures precise ignition, long-lasting durability and reliable performance mile after mile, while reducing wear and tear. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.
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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5325 (Part No.APP5325)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5325

from

$7.49
Double Platinum Spark Plug offers enhanced durability and performance with its platinum-to-platinum design, effectively reducing gap erosion and minimizing misfires for a longer service life. Engineered for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. Featuring a mid-projection center electrode and flat seat type, this performance-grade spark plug is built with platinum-tipped electrodes for consistent ignition and lasting reliability. Designed to deliver exceptional value, it is a dependable choice for maintaining peak engine performance.
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Autolite Iridium – Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5325 (Part No.AI5325)

Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5325

from

$11.49
Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.
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DENSO – DENSO Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition, 4506 (Part No.4506)

DENSO Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition, 4506

from

$7.69
The Platinum TT Spark Plug features a cutting-edge twin-tip design with a platinum center electrode, ensuring superior conductivity for efficient and consistent ignition. Its titanium-enhanced ground strap adds exceptional durability, making it a reliable choice for long-lasting performance. Engineered to optimize flame propagation, this spark plug promotes more complete combustion, improving engine efficiency and power output. The flat seat type ensures a secure fit, while the advanced materials enhance ignition reliability, making it ideal for automotive enthusiasts seeking enhanced performance and durability.
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Spark Plugs Brands You Can Trust For Your Lexus RX450h

8 trusted brands of Spark Plugs line our shelves, ready to help keep your Lexus RX450h running smooth. Below are some of the most popular brands and their top Spark Plugs offerings:

Popular DENSO Spark Plugs

DENSO products for the Lexus RX450h span several categories. Some of the highest-rated DENSO Spark Plugs that will fit your Lexus RX450h are:

Top Lexus RX450h Spark Plugs from Autolite Iridium

Your Lexus RX450h will be purring again thanks to Autolite Iridium brand Spark Plugs available for online order or in-store pick up. Popular Autolite Iridium parts include:

Most Purchased Lexus RX450h Spark Plugs from Autolite Iridium

When you buy the most frequently purchased Autolite Iridium brand Spark Plugs, you can be confident it will be the right part for your Lexus RX450h. Here are the Autolite Iridium Spark Plugs Advanced Auto customers buy the most:

FAQs for Lexus RX450h Spark Plugs

What are the most purchased Spark Plugs for the Lexus RX450h?

Out of 23 Spark Plugs for the Lexus RX450h, the most popular in our inventory are:

What are the top-rated Lexus RX450h Spark Plugs?

Top-rated Spark Plugs for your Lexus RX450h based on customer reviews/ratings are:
DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH20, 5344
from $17.99
(76)
DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH20, 5344
“Great fit… Improved performance A++…. Used YouTube video to DIY!!!”
Champion Copper Plus Spark Plug REC12MCC4 - Dependable Performance & Durability, 446
from $6.99
(9)
Champion Copper Plus Spark Plug REC12MCC4 – Dependable Performance & Durability, 446
“These all came perfectly gaped and ready, I cheapies all 16 of them and they were perfect. The store did a great job in ordering and getting them in f”