Infiniti QX56 Spark Plugs

Your One-Stop Shop For Trusted Infiniti QX56 Spark Plugs

If you’re in search of Infiniti QX56 Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 39 Spark Plugs from top brands with prices ranging from $4.49 to $31.99.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your Infiniti QX56.

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 Infiniti QX56 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 Infiniti QX56 Spark Plugs

DENSO – DENSO Platinum TT Spark Plug with Titanium Twin-Tip for Enhanced Ignition, 4505 (Part No.4505)

DENSO Platinum TT Spark Plug with Titanium Twin-Tip for Enhanced Ignition, 4505

from

$7.69
The Platinum TT Spark Plug with its innovative platinum twin-tip design ensures superior ignition performance and extended lifespan, making it a reliable choice for your vehicle. Featuring a titanium-enhanced ground strap, this spark plug delivers consistent spark delivery and enhanced durability, even under demanding conditions. The platinum center electrode tip provides excellent wear resistance and dependable ignition, while the flat seat type ensures a secure and stable fit for optimal combustion efficiency. Engineered for enhanced ignition efficiency, this spark plug promotes faster flame propagation, resulting in more complete combustion and improved engine performance. Ideal for drivers seeking reliability, durability, and peak performance, this spark plug is a smart investment for maintaining your vehicle’s efficiency.
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NGK – NGK G-Power Spark Plug (LKAR7BGP): Enhanced Durability & Fuel Efficiency, 94297 (Part No.94297)

NGK G-Power Spark Plug (LKAR7BGP): Enhanced Durability & Fuel Efficiency, 94297

from

$7.99
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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Autolite – Autolite Copper Resistor Spark Plug: Quick Starts & Enhanced Durability, 5325 (Part No.5325)

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

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$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

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$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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Champion – Champion Iridium Spark Plug REA9WYPB4 – Maximum Performance & Longevity, 9412 (Part No.9412)

Champion Iridium Spark Plug REA9WYPB4 - Maximum Performance & Longevity, 9412

from

$10.99
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 Iridium – Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5683 (Part No.XP5683)

Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5683

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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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

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.
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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT, 4712 (Part No.4712)

DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IXEH22TT, 4712

from

$14.49
Durability of an OE style plug combined with Power & Torque of high performance.
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NGK – NGK Laser Platinum Spark Plug (PLFR5A-11): Enhanced Fuel Efficiency & Longevity, 6240 (Part No.6240)

NGK Laser Platinum Spark Plug (PLFR5A-11): Enhanced Fuel Efficiency & Longevity, 6240

from

$22.99
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 applications. Laser platinum plugs provide stable idling, superior anti-fouling, improved fuel efficiency and lower emissions. High-grade pure alumina ceramic and 98% pure copper core prevents spark plug from overheating and provides reliable starts. Most Laser Platinum spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
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NGK – NGK Ruthenium HX Spark Plug (LFR5AHX): High Ignitability & Durability, 96355 (Part No.96355)

NGK Ruthenium HX Spark Plug (LFR5AHX): High Ignitability & Durability, 96355

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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Autolite – Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5683 (Part No.APP5683)

Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5683

from

$7.49
Double Platinum Spark Plug: Enhanced Durability & Performance is engineered for exceptional reliability and efficiency, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. The yttrium-enhanced ground electrode delivers superior heat transfer, providing unmatched 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 consistent performance. With a mid-projection center electrode and flat seat type, this performance-grade spark plug is designed to meet demanding engine requirements. Both the center and ground electrode tips are crafted from platinum, ensuring reliable ignition and enhanced durability. Whether you’re seeking improved engine efficiency or reduced maintenance, this spark plug delivers superior value and performance.
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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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DENSO – DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IKH16TT, 4703 (Part No.4703)

DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IKH16TT, 4703

from

$16.99
Durability of an OE style plug combined with Power & Torque of high performance.
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DENSO – DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH16, 5343 (Part No.5343)

DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IKH16, 5343

from

$12.49
Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).
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Champion – Champion Iridium Spark Plug REC10WYPB4 – Maximum Performance & Longevity, 9006 (Part No.9006)

Champion Iridium Spark Plug REC10WYPB4 - Maximum Performance & Longevity, 9006

from

$10.99
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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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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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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DENSO – DENSO Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11, 3442 (Part No.3442)

DENSO Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11, 3442

from

$28.49
Manufactured to the strictest OE performance, durability and emissions standards.
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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 Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FK16HR11, 3450 (Part No.3450)

DENSO Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FK16HR11, 3450

from

$25.99
Manufactured to the strictest OE performance, durability and emissions standards.
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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 Iridium – Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5683 (Part No.AI5683)

Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5683

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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E3 – E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.81 (Part No.E3.81)

E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.81

from

$8.49
“The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “”diamond-shaped”” side wire electrode enhances combustion by projecting the spark to ignite the air/fuel mixture more quickly, resulting in a larger and faster flame kernel. This advanced design improves power output by up to 6% on average within typical operating ranges, while also promoting fuel savings and reducing engine carbon deposits. Crafted with durable nickel for both the center and ground electrode tips, this spark plug is built to last. Pre-gapped at the factory for optimal performance, it eliminates the need for adjustments, making installation hassle-free. With its cleaner-burning combustion and enhanced energy efficiency, this spark plug is a smart upgrade for drivers seeking improved engine performance and long-term value.”
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DENSO – DENSO U-Groove Spark Plug: OE Performance, K20HR-U11, 3381 (Part No.3381)

DENSO U-Groove Spark Plug: OE Performance, K20HR-U11, 3381

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$9.99
U-Groove design provides better ignitability for increased engine efficiency.
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Spark Plugs Brands You Can Trust For Your Infiniti QX56

7 trusted brands of Spark Plugs line our shelves, ready to help keep your Infiniti QX56 running smooth. Below are some of the most popular brands and their top Spark Plugs offerings:

Top Infiniti QX56 Spark Plugs from Autolite Iridium

Your Infiniti QX56 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 Infiniti QX56 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 Infiniti QX56. Here are the Autolite Iridium Spark Plugs Advanced Auto customers buy the most:

FAQs for Infiniti QX56 Spark Plugs

What are the most purchased Spark Plugs for the Infiniti QX56?

Out of 39 Spark Plugs for the Infiniti QX56, the most popular in our inventory are:

What are the top-rated Infiniti QX56 Spark Plugs?

Top-rated Spark Plugs for your Infiniti QX56 based on customer reviews/ratings are:
DENSO Iridium Long-Life Spark Plug: OE Performance, SK20HR11, 3421
from $14.49
(104)
DENSO Iridium Long-Life Spark Plug: OE Performance, SK20HR11, 3421
“Changed original plugs at 50k changed these at 77k. Great parts”