Fits select 1997-2016 Acura, Audi, BMW, Chevrolet, and Dodge (5.9L).

NGK Ruthenium HX spark plugs utilize patented ruthenium technology to provide superior ignitability and service life for modern high-performance engines. Engineered to surpass traditional iridium and platinum designs, these plugs are specifically suited for vehicles originally equipped with DFE (Double Fine Electrode) and PSPE (Projected Square Platinum Electrode) tip configurations. The high-ignitability design ensures a more complete fuel burn, resulting in crisper throttle response, a smoother idle, and more reliable cold-weather starts.

• Advanced Tip Technology: Features a 0.4mm Ruthenium alloy fine wire center electrode and a 0.8mm platinum fine wire ground electrode for maximum spark concentration.
• Extreme Durability: Ruthenium provides industry-leading resistance to wear and oxidation under high-heat conditions.
• Robust Construction: Pure alumina silicate ceramic insulator offers superior dielectric strength and thermal transfer.
• Service Features: Trivalent metal plating provides excellent anti-corrosion and anti-seizing properties, while corrugated ribs prevent electrical flashover.
• Heat Dissipation: Integrated copper core assists in rapid heat removal to prevent pre-ignition.
• Manufacturer Part Number: FR6AHX-S

NGK Laser Iridium High Ignitability spark plugs are engineered to meet the demanding requirements of modern OE applications, balancing high-performance combustion with long-term durability. These plugs feature an iridium-tipped center electrode—a material six times harder than platinum—paired with a raised platinum pad or fine wire tip on the ground electrode. This combination ensures consistent spark performance and even wear, specifically in high-demand distributorless ignition systems.

• 98% pure copper core provides superior heat dissipation to prevent overheating
• Fine-wire iridium center electrode offers maximum ignitability and service life
• Pure alumina silicate ceramic insulator ensures high dielectric strength and heat transfer
• Trivalent metal plating provides excellent anti-corrosion and anti-seizing properties
• Triple seals eliminate the risk of combustion gas leakage
• Manufacturer Part Number: SILKGR9A7ES
• Quantity: Set of 4 spark plugs

Fits select 2010-2020 Buick, Cadillac, Chevrolet, Ford, and GMC models.

Upgrade your ignition system with this box of four NGK Iridium IX spark plugs (LTR6IX), specifically engineered for enthusiasts seeking improved throttle response and superior anti-fouling characteristics. These plugs are an ideal performance upgrade from standard nickel or platinum plugs, featuring a 0.6mm fine-wire iridium center electrode that is six times harder than platinum for extreme durability under high-heat conditions.

• 0.6mm fine-wire iridium tip ensures a consistent, high-intensity spark and maximum ignitability.
• Tapered cut ground electrode reduces quenching to improve starting, idling, and throttle response.
• Trivalent metal plating offers superior anti-corrosion and anti-seizing properties for easier removal.
• High melting point iridium alloy construction is perfect for modern high-performance engines.
• Recommended for modified applications or as a premium OE upgrade.
• Manufacturer Part Number: LTR6IX (Box of 4).

Fits select 2014-2020 BMW and Mini models including 230i, 330i, 340i, 440i, 540i, M240i, Cooper, and Cooper S.

NGK Laser Iridium High Ignitability spark plugs are engineered to meet original equipment standards for modern turbocharged and high-compression BMW and Mini engines. Each plug features a fine-wire iridium-tipped center electrode for maximum spark concentration and a laser-welded platinum chip on the ground electrode. This combination provides superior wear resistance and high ignitability, specifically optimized for distributorless ignition systems.

To manage the thermal demands of high-performance engines, these plugs utilize a 98% pure copper core for efficient heat removal. The high-grade alumina silicate ceramic insulator provides superior dielectric strength, while the trivalent metal plating protects against corrosion and prevents the threads from seizing in the cylinder head.

• Iridium-tipped center electrode is six times harder than platinum for extreme longevity
• Platinum pad ground electrode ensures even wear and improved spark performance
• Triple seals prevent combustion gas leakage to maintain cylinder compression
• Trivalent metal plating offers superior anti-corrosion and anti-seizing properties
• Pure alumina silicate ceramic insulator for better heat transfer and strength
• Manufacturer Part Number: SILZKGR8B8S

NGK Iridium IX spark plugs are engineered for performance enthusiasts seeking improved throttle response and superior ignitability. This set of four LKAR8CIX-PS plugs features a 0.6mm laser-welded fine-wire iridium tip, which provides high durability and a consistently stable spark compared to standard copper or platinum alternatives. The tapered ground electrode design minimizes the quenching effect, allowing for faster flame expansion and optimized combustion.

• Manufacturer Part Number: LKAR8CIX-PS
• Center Electrode: 0.6mm laser-welded iridium tip for maximum spark focus and service life
• Ground Electrode: Tapered cut to reduce electrical quenching
• Finish: Trivalent metal plating for superior anti-corrosion and anti-seizing properties
• Construction: Corrugated ribs prevent flashover while the pure alumina silicate ceramic insulator provides superior strength
• Quantity: Box of 4 plugs

Designed to withstand high-heat environments and resist carbon fouling, these Iridium IX plugs are a direct upgrade for drivers demanding reliability and efficiency from their ignition system.

Fits select 2012-2019 BMW and Can-Am motorcycles, ATVs, and UTVs, including BMW R1200GS, C650GT, and Can-Am Outlander/Renegade models.

NGK Standard spark plugs are engineered as an OE-quality replacement to provide reliable ignition and consistent performance. Each plug features a 98% pure copper core for superior heat dissipation and conductivity, helping to manage engine temperatures across a wide range of operating conditions. The high-grade alumina silicate ceramic insulator ensures dielectric strength and efficient heat transfer, while the corrugated ribs help prevent flashover.

• Trivalent Metal Plating: Provides superior anti-corrosion and anti-seizing properties, protecting threads during installation and removal.
• Triple Gasket Seal: Prevents combustion gas leakage for consistent cylinder pressure.
• Copper Core: Solid copper center electrode offers high conductivity and thermal management.
• OE Design: Specifically developed for motorcycle and powersports applications to match original equipment specifications.
• Quantity: Box of 10 spark plugs.
• MPN: LMAR8D-J

Fits select 2011-2019 Subaru Crosstrek, Forester, Impreza, Legacy, Outback, and XV Crosstrek. This set of 4 NGK Laser Iridium High Ignitability spark plugs is engineered specifically for OE applications, providing a direct-fit replacement for factory-installed components. Designed for distributorless ignition systems, these plugs utilize a dual-precious-metal construction to optimize combustion efficiency and service life.

The center electrode features a laser-welded iridium tip, which is six times harder than platinum, ensuring a stable spark even under high-load conditions. The ground electrode is equipped with a raised platinum pad or fine wire tip to resist electrical erosion and maintain the precise gap throughout the service interval. A 98% pure copper core facilitates rapid heat dissipation to prevent pre-ignition and overheating, while the high-grade pure alumina ceramic insulator provides superior dielectric strength and thermal conductivity.

• Manufacturer Part Number: SILZKAR7B11
• Center Electrode: Iridium-tipped fine wire
• Ground Electrode: Platinum pad/tip for even wear
• Shell Finish: Trivalent metal plating for anti-corrosion and anti-seizing
• Internal Seal: Triple gaskets to prevent combustion gas leakage
• Insulator: Pure alumina silicate ceramic for heat transfer and strength
• Core Material: 98% pure copper for maximum heat removal

Fits select 2012-2020 Mazda 3, 6, CX-3, CX-30, CX-5, and MX-5 Miata, 2016 Scion iA, and 2017-2020 Toyota Yaris / Yaris iA.

NGK Laser Iridium spark plugs are engineered for drivers seeking long-service life and consistent ignition performance. As a precise OE replacement, these plugs feature a laser-welded fine-wire iridium center electrode and a platinum pad on the ground electrode. This combination provides exceptional resistance to spark erosion and ensures even wear, specifically in modern distributorless ignition systems where electrode longevity is critical.

The construction utilizes a high-grade pure alumina silicate ceramic insulator for superior dielectric strength and thermal conductivity. A 98 percent pure copper core facilitates rapid heat dissipation to prevent pre-ignition and overheating. The trivalent metal plating offers robust anti-corrosion and anti-seizing properties, making future plug changes easier by preventing the threads from bonding to the cylinder head.

• Manufacturer Part Number: ILKAR7L11/04
• Electrode Material: Iridium-tipped center electrode and platinum ground electrode pad
• Insulator: Pure alumina silicate ceramic for better heat transfer and strength
• Corrosion Protection: Trivalent metal plating requires no anti-seize during installation
• Core: 98% pure copper core for enhanced heat removal
• Sealing: Triple seals to prevent combustion gas leakage

Fits select 2001-2020 Acura, BMW, Honda, Lexus, Subaru, and Toyota models.

NGK Ruthenium HX spark plugs represent the pinnacle of modern ignition technology, engineered to meet the demands of high-performance engines and modern fuel systems. Utilizing a patented ruthenium alloy, these plugs provide industry-leading durability and superior oxidation resistance compared to traditional iridium or platinum alternatives. The specialized DFE (Double Fine Electrode) and PSPE (Projecting Square Platinum Electrode) tip designs facilitate a more complete fuel burn, which translates to sharper throttle response, a smoother idle, and more reliable cold starts.

• Part Number: LFR6AHX-S
• Quantity: Box of 4
• 0.4mm Ruthenium alloy fine-wire center electrode
• 0.8mm Platinum fine-wire ground electrode
• Pure alumina silicate ceramic insulator for superior strength and heat transfer
• Trivalent metal plating for maximum anti-corrosion and anti-seizing protection
• Copper core aids in efficient heat removal
• Corrugated ribs prevent electrical flashover

NGK Standard spark plugs (KR9E-G) are engineered as dependable OE-replacement components, utilizing a nickel alloy construction designed for reliable performance. Each plug features a 98% pure copper core for superior heat dissipation and conductivity, allowing for a wider heat range and preventing pre-ignition. The high-grade alumina silicate ceramic insulator provides exceptional dielectric strength and improved heat transfer for consistent ignition timing.

To ensure long-term durability and ease of maintenance, these plugs are finished with trivalent metal plating, offering robust anti-corrosion and anti-seizing properties that eliminate the need for anti-seize during installation. The inclusion of corrugated ribs helps prevent electrical flashover, while a triple-gasket sealing process prevents combustion gas leakage to maintain engine compression.

• Part Number: KR9E-G
• Quantity: Box of 4
• Core Material: 98% Pure Copper
• Insulator: Alumina Silicate Ceramic
• Plating: Trivalent Metal (Anti-Corrosion/Anti-Seizing)
• Sealing: Triple-gasket seal to prevent gas leakage
• Rib Design: Corrugated to prevent flashover

Fits select 2003-2020 Dodge, Hyundai, Land Rover, Mercedes-Benz, Mitsubishi, Saab, Subaru, Suzuki, and Volvo models (2.0T).

NGK Ruthenium HX High Ignitability spark plugs represent the pinnacle of modern combustion technology, engineered to meet the demands of high-efficiency and high-performance engines. These plugs utilize a patented Ruthenium alloy to provide superior durability and oxidation resistance compared to traditional iridium or platinum alternatives. The specialized DFE (Double Fine Electrode) and PSPE (Projected Square Platinum Electrode) tip designs promote a more complete fuel burn, resulting in faster throttle response, more stable idling, and reliable cold-start performance even in demanding conditions.

• Manufacturer Part Number: LFR6BHX
• Quantity: Box of 4
• Center Electrode: 0.4mm Ruthenium alloy fine wire
• Ground Electrode: 0.8mm Platinum fine wire
• Insulator: Pure alumina silicate ceramic for high-strength heat transfer
• Finish: Trivalent metal plating for superior anti-corrosion and anti-seizing properties
• Construction: Solid copper core aids in efficient heat removal
• Safety: Corrugated ribs to prevent flashover

Fits select 2003-2020 Dodge, Hyundai, Land Rover, Mercedes-Benz, Mitsubishi, Saab, Subaru, and Volvo models (2.0T).

NGK Iridium IX spark plugs are engineered for performance enthusiasts, delivering improved throttle response and superior anti-fouling. The fine-wire iridium center electrode is six times harder than platinum, ensuring a consistent spark and long-lasting durability even in the high-heat, high-pressure environments of modern turbocharged or high-performance engines.

The tapered cut ground electrode reduces quenching, facilitating faster flame kernel growth for more efficient combustion, more stable idling, and smoother acceleration. For long-term reliability, the trivalent metal plating provides superior anti-corrosion and anti-seizing properties, preventing the plugs from sticking in the cylinder head over time.

• Manufacturer Part Number: LFR6AIX
• Series: Iridium IX
• Center Electrode Material: Iridium fine wire
• Ground Electrode Design: Tapered cut
• Finish: Trivalent metal plating
• Quantity: Set of 4 spark plugs

Fits 2010-2019 Honda CRF250R and 2019 Honda CRF250RX.

NGK Racing spark plugs are engineered to withstand the extreme cylinder pressures and temperatures of professional competition. These plugs feature specialized electrode configurations designed to maximize ignitability while maintaining the durability required for high-RPM racing applications. This set of four R0451B-8 plugs provides a reliable ignition path to help maintain peak performance under the most grueling conditions.

• Trivalent Metal Plating: Features superior anti-corrosion and anti-seizing properties to prevent thread damage during removal.
• Advanced Insulator: Pure alumina silicate ceramic provides high dielectric strength and enhanced heat transfer.
• Optimized Nose Design: Specialized insulator nose configurations help prevent fouling and improve throttle response.
• Copper Core: Aids in rapid heat dissipation to prevent pre-ignition and electrode melting.
• Gas-Tight Seal: Triple seals prevent combustion leakage past the shell.
• Corrugated Ribs: Design prevents flashover to ensure energy reaches the combustion chamber.
• MPN: R0451B-8

Fits select 2012-2020 Dodge Dart, Fiat 124 Spider, 500, 500L, 500X, and Jeep Renegade models.

NGK Laser Iridium High Ignitability spark plugs are engineered as an OE-specific solution to bridge the gap between high-performance ignition and long-term durability. Each SIKR9A7 plug features a fine-wire iridium-tipped center electrode laser-welded to ensure a precise spark and maximum ignitability. This is paired with a platinum pad on the ground electrode to minimize electrical erosion and maintain a consistent gap over the life of the plug, especially in modern distributorless ignition systems.

Built to withstand extreme thermal stress, these plugs utilize a high-grade pure alumina silicate ceramic insulator and a 98% pure copper core to maximize heat dissipation and prevent overheating. The trivalent metal plating provides a robust barrier against corrosion and seizing, ensuring the plugs remain easier to remove at the next service interval.

• Manufacturer Part Number: SIKR9A7
• Quantity: Box of 4
• Center Electrode: Laser-welded iridium tip
• Ground Electrode: Platinum pad for even wear
• Insulator: Alumina silicate ceramic for superior strength and heat transfer
• Anti-Seize: Trivalent metal plating for anti-corrosion and anti-seizing properties
• Sealing: Triple-gasket seal prevents combustion gas leakage

Fits select 2012-2019 Can-Am Commander 1000/1000R, Maverick 1000R, and Husqvarna Nuda 900R models.

NGK Standard series spark plugs are engineered as precise original equipment replacements for powersports applications where reliability is paramount. The LMAR8C-9 features a nickel-alloy electrode and a solid 98% pure copper core to ensure superior heat dissipation and electrical conductivity. This design provides a wide heat range to resist carbon fouling while preventing pre-ignition under high-load conditions.

• Trivalent Metal Plating: Delivers superior anti-corrosion and anti-seizing properties, protecting cylinder head threads during installation and removal.
• Triple Gasket Sealing: Prevents combustion gas leakage to maintain consistent cylinder compression.
• Alumina Silicate Ceramic: A high-grade insulator that provides superior strength and thermal transfer properties.
• Corrugated Ribs: Specifically designed to prevent flashover, ensuring the spark energy reaches the combustion chamber.
• Copper Core: Aids in removing heat from the firing tip to maintain stable operating temperatures.
• Part Number: LMAR8C-9
• Quantity: Box of 10

Fits 2005-2017 Suzuki RMZ450 (Base). NGK Laser Iridium High Ignitability spark plugs (DIMR8C10) are engineered to deliver the ultimate combination of performance, fuel efficiency, and long-term durability. Designed specifically for OE applications, these plugs feature a laser-welded iridium-tipped center electrode paired with a platinum pad on the ground electrode. This configuration ensures even wear and consistent spark performance, especially in modern distributorless ignition systems.

• Manufacturer Part Number: DIMR8C10
• Center Electrode: Fine-wire iridium tip provides durability six times harder than platinum.
• Ground Electrode: Raised platinum pad or fine-wire tip for superior ignitability and wear resistance.
• Thermal Management: 98% pure copper core aids in rapid heat removal to prevent overheating and pre-ignition.
• Insulator Construction: Pure alumina silicate ceramic provides superior dielectric strength and optimized heat transfer.
• Anti-Corrosion Finish: Trivalent metal plating offers excellent anti-seizing and anti-corrosion properties.
• Reliability: Triple gasket seals prevent combustion gas leakage for consistent cylinder pressure.

NGK Laser Iridium High Ignitability spark plugs are engineered to satisfy strict OE requirements, providing a precise balance of performance and long-term durability. These plugs feature an iridium-tipped center electrode—a material six times harder than platinum—paired with a raised platinum pad or fine wire tip on the ground electrode. This dual-precious-metal design ensures consistent spark performance and uniform wear, particularly in high-demand distributorless ignition systems.

Built for thermal efficiency and reliability, the SILZKFR8H7S utilizes a 98% pure copper core and high-grade alumina silicate ceramic insulators to facilitate rapid heat transfer and prevent overheating during heavy engine loads. The exterior is finished with trivalent metal plating, providing a specialized barrier against corrosion and seizing to ensure easier removal during your next service interval.

• Part Number: SILZKFR8H7S
• Quantity: Box of 4
• Center Electrode: Laser-welded Iridium tip for maximum durability
• Ground Electrode: Platinum-tipped for high ignitability and even wear
• Insulator: Pure alumina silicate ceramic for superior strength and heat transfer
• Construction: 98% pure copper core for enhanced heat removal
• Sealing: Triple gasket seals prevent combustion gas leakage
• Finish: Trivalent metal plating for anti-corrosion and anti-seizing properties

Fits select 2014-2019 Husaberg, Husqvarna, and KTM models including FE250, FE350, EXC-F series, and 790 Adventure.

NGK Laser Iridium spark plugs are engineered for maximum performance and longevity, serving as a premium replacement for OE applications. The iridium-tipped center electrode is six times harder than platinum, ensuring high durability and a stable spark even under the high-stress conditions of modern four-stroke engines. These plugs feature a high-grade pure alumina ceramic insulator and a 98% pure copper core to efficiently dissipate heat, preventing overheating and ensuring reliable starts.

• Precision Ignition: Laser-welded iridium tip provides a smaller, more concentrated spark for improved combustion efficiency.
• Advanced Materials: Pure alumina silicate ceramic insulator offers superior strength and thermal conductivity.
• Corrosion Resistant: Trivalent metal plating provides anti-corrosion and anti-seizing properties, protecting your cylinder head during removal and installation.
• Reliable Sealing: Triple gasket seals prevent combustion gas leakage to maintain cylinder compression.
• Heat Management: Integrated copper core aids in rapid heat removal to prevent pre-ignition.

Manufacturer Part Number: LMAR9AI-10. This package includes a set of 4 spark plugs.

Fits select 2011-2019 Ski-Doo Summit, Renegade, MX Z, Freeride, GSX, and Expedition models equipped with the E-TEC 800R engine.

NGK Laser Platinum spark plugs are engineered as an OE-specific solution to provide high ignitability and an extended service life compared to standard nickel plugs. Specifically designed for vehicles originally equipped with fine-wire platinum alloy plugs, the PFR7AB ensures stable idling, superior anti-fouling, and improved fuel efficiency. The construction features a 98% pure copper core for maximum heat dissipation and a high-grade pure alumina ceramic insulator to prevent overheating during high-load operation.

• Manufacturer Part Number: PFR7AB
• Quantity: Box of 4 spark plugs
• Core Material: 98% pure copper for superior heat removal
• Insulator: Pure alumina silicate ceramic for better heat transfer and dielectric strength
• Finish: Trivalent metal plating for advanced anti-corrosion and anti-seizing properties
• Safety: Corrugated ribs to prevent flashover and triple seals to eliminate combustion gas leakage
• Electrode: Platinum pad on the ground electrode for uniform wear in distributorless ignition systems

NGK Racing spark plugs are purpose-built for the most demanding competitive environments, engineered to withstand the extreme thermal loads and mechanical stresses of high-output racing engines. The R7448A-8 features specialized electrode configurations that prioritize ignitability and durability in conditions where standard plugs often fail. By utilizing a copper core deeply inserted into the center electrode, these plugs provide rapid heat dissipation to prevent pre-ignition and ensure consistent performance throughout the powerband.

• Heat Range: 8
• Trivalent Metal Plating: Delivers superior anti-corrosion and anti-seizing properties for easier installation and removal in high-heat cylinder heads.
• Pure Alumina Silicate Ceramic: Provides high dielectric strength and optimized heat transfer for reliable insulation.
• Copper Core: Enhances thermal conductivity to manage extreme combustion temperatures.
• Triple Seals: Specialized internal sealing prevents combustion gas leakage.
• Corrugated Ribs: Prevents flashover and electrical leakage to ensure maximum spark energy.
• Manufacturer Part Number: R7448A-8
• Quantity: Set of 4 Plugs