Lexus IS300 Spark Plugs

Your One-Stop Shop For Trusted Lexus IS300 Spark Plugs

If you’re in search of Lexus IS300 Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 44 Spark Plugs from top brands with prices ranging from $3.99 to $38.99.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your Lexus IS300.

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 IS300 Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Lexus IS300 Spark Plugs

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK16TT (Part No.4701)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK16TT

from

$12.99
Experience the perfect blend of durability and high performance with this spark plug, designed to deliver exceptional power and torque. Featuring a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm Needle Tip Ground Electrode enhances spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, enduring temperatures over 4000 Deg F. The advanced 360-degree laser welding process ensures a robust bond and structural integrity, while the Twin-Tip Technology combines a fine wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition. With over 100,000 miles of reliable performance, this plug enhances fuel economy, reduces emissions, and is crafted from premium materials for long-lasting endurance. Designed with a flat seat type, it offers OE-style reliability with the added benefits of cutting-edge engineering.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power and Torque of high performance.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Iridium TT
  • Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
  • Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
  • Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
  • Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.
See More

Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.3924)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

from

$4.99
Autolite Copper spark plugs are crafted to ensure reliable performance and durability for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are designed for extended life, while the mid-projection center electrode enhances ignition efficiency. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell provides exceptional corrosion resistance, making them ideal for long-term use. With a flat seat type and integrated resistor, these spark plugs deliver quick starts and meet performance expectations, offering great value for regular-grade applications.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • The integrated resistor ensures quick starts and optimized performance, making it a reliable choice for regular-grade applications.
See More

Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.5325)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

from

$3.99
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.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • Good Fuel Economy: Designed to optimize fuel efficiency, these spark plugs help you get the most out of every gallon of gas.
  • Smooth Acceleration: Experience seamless and smooth acceleration with Autolite Copper Core spark plugs, enhancing your driving experience.
  • OES Design Compliance: These spark plugs are crafted to meet or exceed Original Equipment Service (OES) design requirements, ensuring high-quality performance.
  • Industry Standard: Autolite Copper Core spark plugs are recognized as the industry standard, backed by over 100 years of engineering expertise and the sale of over 11 billion plugs.
See More

Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision (Part No.AI5325)

Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision

from

$10.99
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.

Product Features:
  • Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
  • A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
  • Nickel-plated shell to resist corrosion.
  • High-alumina ceramic insulator for increased strength.
  • Laser welded 0.5mm Iridium finewire center electrode.
  • Proprietary platinum sidewire technology.
See More

E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.68)

DiamondFIRE Automotive Spark Plug: More Power, Saves Gas

from

$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.

Product Features:
  • E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
  • Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
  • Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
  • Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
  • E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
  • The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
  • Wide Compatibility: E3.68 spark plugs are 14mm with a 1.000 reach and a gasket seat, fitting a wide variety of late model applications, especially Hemi engines.
  • Enhanced Heat Transfer: The three legs securing the Diamond FIRE electrode to the shell ensure excellent heat transfer and create more turbulence in the cylinder for better combustion.
  • Widely Available: E3.68 spark plugs are widely stocked in automotive retail stores, making them easily accessible for consumers.
See More

DENSO – Iridium Long-Life Spark Plug: OE Performance, SK16R-P11 (Part No.3353)

Iridium Long-Life Spark Plug: OE Performance, SK16R-P11

from

$12.99
Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a game-changer for your vehicle. Featuring DENSO’s patented Iridium Alloy with a fine wire center electrode, it delivers sustained spark performance for over 100,000 miles, lasting up to three times longer than conventional plugs. The platinum ground electrode ensures extended life, while the 360-degree laser welding process guarantees a robust bond and structural integrity. Designed to endure extreme temperatures exceeding 4,000 Deg F, its perfect for high-performance ignition systems. This advanced spark plug enhances engine performance, providing more horsepower, quicker starts, and fewer misfires under heavy loads. Its innovative design also promotes fuel efficiency, helping you save at the pump. With a flat seat type and iridium center electrode tip, this plug is built for reliability and precision, making it an essential upgrade for long-lasting, high-performance driving.

Product Features:
  • Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
  • Platinum ground electrode for extended life
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Sustained spark performance over 100,000 miles
  • Lasts up to three times as long as conventional plugs
  • Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
  • Iridium Long Life
  • Enhanced Engine Performance: Enjoy more horsepower, faster and easier starts, and fewer misfires under heavy loads, thanks to the advanced properties of DENSO’s Iridium alloy.
  • Fuel Efficiency: The innovative design of the DENSO Iridium Long Life plug helps in better conservation of fuel, contributing to overall efficiency.
See More

Champion – Iridium Spark Plug (REC10WMPB4): Maximum Performance & Longevity (Part No.9775)

Iridium Spark Plug (REC10WMPB4): Maximum Performance & Longevity

from

$11.99
Champion Iridium spark plug is engineered for peak performance and durability, featuring a fine-wire iridium center electrode laser-locked for precision and a platinum ground electrode for extended life. Designed to maintain stable operating temperatures under all engine loads, this plug ensures consistent ignition and optimal engine performance, regardless of engine type or ignition system. Its iridium-platinum combination delivers unmatched reliability and sharp spark focus, making it ideal for high-performance applications. With a flat seat type and integrated resistor, this spark plug is built to handle demanding conditions while maximizing efficiency and longevity. Perfect for drivers seeking superior ignition technology and lasting value.

Product Features:
  • Fine-wire iridium center electrode laser-locked to center electrode
  • Platinum ground to ensure high performance and long life
  • Maintains stable operating temperature under all engine loads
  • Greatest engine performance regardless of engine type or ignition system
  • Integrated resistor design enhances efficiency and durability under demanding conditions.
See More

Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5325)

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

from

$10.99
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.

Product Features:
  • 0.6 mm finewire design improves ignitability
  • Patented V-trimmed platinum sidewire technology resists wear
  • OE equivalent design is engineered for every engine
  • Designed for better overall durability with virtually no gap erosion
  • Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.
  • Designed and Engineered in the USA: Reflects over 100 years of Autolite’s engineering experience and expertise.
  • Gasket Seat Type: Ensures a secure and proper fit for optimal performance.
See More

NGK – Laser Platinum Spark Plug (BKR6EP-11): High Ignitability & Longevity (Part No.2978)

Laser Platinum Spark Plug (BKR6EP-11): High Ignitability & Longevity

from

$18.99
NGK Laser Platinum spark plugs provide high ignitability and longer service life compared to conventional nickel spark plugs. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applica

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire platinum alloy center electrode provides consistent performance
  • PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
  • PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Best for vehicles with OE fine wire platinum alloy plugs
See More

Motorcraft – High-Performance Spark Plug: Enhances Fuel Efficiency & Reliability (Part No.SP-497-X)

High-Performance Spark Plug: Enhances Fuel Efficiency & Reliability

from

$8.29
The Motorcraft High-Performance Spark Plug is meticulously engineered to deliver unmatched ignition performance, ensuring reliable starts and optimal fuel efficiency for every drive. Featuring a fine wire center electrode design with a platinum tip and a nickel ground electrode, this spark plug is built for precision and durability. Its gasket seat type ensures a secure fit, making it a dependable choice for high-performance engines. Designed to withstand demanding conditions, it maintains consistent performance, helping your vehicle operate at its peak. Whether you’re focused on fuel savings or reliable ignition, this spark plug offers exceptional value and long-lasting quality. Trust Motorcraft for dependable performance and superior craftsmanship in every mile.

Product Features:
  • Enhances Fuel Efficiency: Engineered to optimize fuel efficiency, ensuring you get the most out of every gallon.
  • Superior Ignition Performance: Designed for reliable starts and consistent performance, providing peace of mind on every drive.
  • Exceptional Durability: Crafted with precision to withstand the demands of high-performance engines, ensuring long-lasting use.
  • Consistent Performance: Maintains your vehicle’s peak performance, making it an ideal choice for regular maintenance.
  • Quality and Dependability: Trust Motorcraft for high-quality spark plugs that deliver dependable performance in every drive.
  • Enhances Fuel Efficiency: Engineered to optimize fuel efficiency, ensuring you get the most out of every gallon.
  • Superior Ignition Performance: Designed for reliable starts and consistent performance, providing peace of mind on every drive.
  • Exceptional Durability: Crafted with precision to withstand the demands of high-performance engines, ensuring long-lasting use.
  • Consistent Performance: Maintains your vehicle’s peak performance, making it an ideal choice for regular maintenance.
  • Quality and Dependability: Trust Motorcraft for high-quality spark plugs that deliver dependable performance in every drive.
See More

NGK – G-Power Platinum Spark Plug (BKR6EGP): Enhanced Durability & Efficiency (Part No.7092)

G-Power Platinum Spark Plug (BKR6EGP): Enhanced Durability & Efficiency

from

$8.49
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

Product Features:
  • SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
  • PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
  • TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
See More

Champion – Double Platinum Power Spark Plug (RC12PMPB4): Enhanced Ignitability & Durability (Part No.7318)

Double Platinum Power Spark Plug (RC12PMPB4): Enhanced Ignitability & Durability

from

$9.29
The Double Platinum Power Spark Plug is engineered for drivers seeking enhanced performance and durability. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, this premium spark plug ensures greater wear resistance and sharper spark focus for reliable ignition. Its Heat-Active alloy optimizes electrode temperature under all engine loads, delivering consistent performance and improved ignitability. The V-trimmed ground electrode further enhances spark precision, while the built-in resistor and flat seat design contribute to exceptional durability and stable operation. As a standard replacement grade, this spark plug is designed to maintain stable operating temperatures, ensuring long-lasting performance and efficiency. Ideal for those who demand more powerful performance, this spark plug is a dependable choice for maintaining peak engine functionality.

Product Features:
  • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
  • Platinum center and ground electrode for greater wear resistance
  • Maintains stable operating temperature under all engine loads
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
  • Built-in Resistor and Flat Seat Type: Designed with a built-in resistor and flat seat type for exceptional performance and durability.
See More

Felpro – Spark Plug Tube Seal Set (Part No.ES 72701)

Spark Plug Tube Seal Set

from

$26.99
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.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
See More

Spark Plugs Brands You Can Trust For Your Lexus IS300

8 trusted brands of Spark Plugs line our shelves, ready to help keep your Lexus IS300 running smooth. Below are some of the most popular brands and their top Spark Plugs offerings:

Top Lexus IS300 Spark Plugs from Autolite Iridium

Your Lexus IS300 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 IS300 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 IS300. Here are the Autolite Iridium Spark Plugs Advanced Auto customers buy the most:
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition
from $10.99
This product is not rated
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition
Spark Plugs

FAQs for Lexus IS300 Spark Plugs

What are the most purchased Spark Plugs for the Lexus IS300?

Out of 44 Spark Plugs for the Lexus IS300, the most popular in our inventory are:
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition
from $10.99
This product is not rated
Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition
Spark Plugs

What are the top-rated Lexus IS300 Spark Plugs?

Top-rated Spark Plugs for your Lexus IS300 based on customer reviews/ratings are:
DiamondFIRE Spark Plug: More Power & Fuel Efficiency
from $8.49
(188)
DiamondFIRE Spark Plug: More Power & Fuel Efficiency
“Good product”
Iridium IX Spark Plug (BKR6EIX-11): Enhanced Ignitability & Durability
from $14.99
(113)
Iridium IX Spark Plug (BKR6EIX-11): Enhanced Ignitability & Durability
“Ayuda al motor mas fuerza”
Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition
from $3.99
(105)
Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition
“ites a spark plug…….it either works or it doesn’t….worked fine”