Fits select 1997-2020 Acura, BMW, Cadillac, Chevrolet, Chrysler, Dodge, Geo, Honda, Hyundai, and Infiniti vehicles.

NGK Ruthenium HX spark plugs represent the pinnacle of modern ignition technology, designed specifically for high-efficiency engines that demand superior ignitability and service life. Featuring a patented Ruthenium alloy, these plugs offer significantly higher durability and better oxidation resistance than standard iridium or platinum alternatives. The specialized tip designs, including Double Fine Electrode (DFE) and Projected Square Platinum Electrode (PSPE), ensure a more complete fuel burn, which translates to immediate throttle response, a stable idle, and more reliable cold-weather starts.

• 0.4mm Ruthenium Alloy: Ultra-fine wire center electrode maximizes spark concentration while minimizing voltage requirements.
• 0.8mm Platinum Ground: Fine-wire ground electrode provides a high-ignitability path for more efficient combustion.
• Superior Construction: High-grade pure alumina silicate ceramic insulator provides high dielectric strength and optimized heat transfer.
• Trivalent Metal Plating: Anti-corrosion and anti-seizing finish eliminates the need for anti-seize during installation.
• Copper Core: Integrated copper core facilitates rapid heat removal to prevent pre-ignition and fouling.
• Flashover Protection: Corrugated ribs on the insulator prevent electrical leakage or flashover in high-demand conditions.

Engineered for extreme competition and high-stress environments, NGK Racing spark plugs are built to withstand the rigorous heat and vibration of the track. The R7448A-10 features specialized electrode configurations designed for maximum durability and consistent ignitability where standard plugs might fail under pressure.

These plugs utilize a copper core for superior heat dissipation and a pure alumina silicate ceramic insulator for high thermal conductivity and structural strength. The trivalent metal plating provides a protective barrier against seizing and corrosion in the cylinder head, ensuring reliable installation and removal during service intervals.

• Part Number: R7448A-10
• Quantity: Box of 4 plugs
• Trivalent Metal Plating: Superior anti-corrosion and anti-seizing properties.
• Copper Core: High-grade copper core aids in rapid heat removal from the combustion chamber.
• Pure Alumina Silicate Ceramic: Provides superior insulator strength and heat transfer.
• Triple Seals: Prevents combustion gas leakage for consistent cylinder pressure.
• Corrugated Ribs: Designed to prevent flashover and electrical interference.

Fits select 2017-2020 Honda Civic and CR-V models (Si / EX / EX-L / LX / Touring).

NGK Laser Iridium spark plugs (ILZKAR8J8SY) are engineered to meet original equipment standards for modern ignition systems, providing a precise balance of performance and service life. The center electrode is tipped with iridium, a material six times harder than platinum, which maintains a stable spark gap and resists electrical erosion. To ensure consistent thermal performance, NGK utilizes a 98 percent pure copper core and high-grade alumina silicate ceramic insulators for superior heat transfer and dielectric strength.

• Iridium-tipped center electrode for extreme durability and high ignitability
• Platinum pad on the ground electrode ensures even wear in distributorless ignition systems
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Pure alumina silicate ceramic insulator for better heat transfer and structural strength
• Triple seals prevent combustion gas leakage
• Copper core aids in rapid heat dissipation to prevent pre-ignition
• Part Number: ILZKAR8J8SY

NGK Iridium IX spark plugs are engineered for performance enthusiasts seeking improved ignitability, superior throttle response, and exceptional anti-fouling characteristics. The fine-wire iridium center electrode is six times harder than platinum and features an extremely high melting point, making it ideal for the high-heat environments of modern or modified engines.

Equipped with a tapered cut ground electrode, these plugs minimize quenching and improve flame kernel expansion for more reliable starts and smoother idling. Each plug is finished with trivalent metal plating to provide long-lasting anti-corrosion and anti-seizing properties, ensuring easy removal during maintenance intervals. Use these as a high-durability upgrade for original equipment nickel alloy plugs.

• Manufacturer Part Number: BPR5EIX (Stock No. 6597)
• Terminal Type: Solid
• Center Electrode Material: Iridium alloy fine wire
• Ground Electrode Design: Tapered cut
• Finish: Trivalent metal plating for anti-seize protection
• Quantity: Set of 4 spark plugs

NGK Laser Platinum spark plugs are engineered for high ignitability and an extended service life in specific OE applications. These plugs utilize laser-welded platinum surfaces on both the center and ground electrodes, ensuring a consistent spark and even wear characteristics—a critical requirement for modern distributorless ignition systems (DIS).

• Precision Construction: Laser-welded platinum disk on the center electrode and a platinum pad on the ground electrode for superior anti-fouling and stable idling.
• Thermal Management: 98% pure copper core provides maximum heat dissipation, preventing the plug from overheating during high-load conditions.
• Advanced Insulation: High-grade pure alumina silicate ceramic insulator offers high dielectric strength and efficient heat transfer.
• Corrosion Resistance: Trivalent metal plating provides superior anti-corrosion and anti-seizing properties, ensuring easier removal during service.
• Internal Integrity: Triple-gasket sealing process prevents combustion gas leakage, while corrugated ribs eliminate the risk of electrical flashover.

Manufacturer Part Number: PKER7A8EGS. Includes four (4) spark plugs.

Fits select 2015-2019 Kawasaki Ninja H2, H2R, H2 SX, ZX-10R, and ZX-10RR (ZX1000) models.

NGK Laser Iridium High Ignitability spark plugs are engineered as high-performance OE replacements, delivering a precise combination of longevity and ignition efficiency. These plugs feature a laser-welded iridium-tipped center electrode—a material six times harder than platinum—ensuring consistent spark delivery and durability under the extreme thermal loads of high-revving Kawasaki liter-class engines.

To maintain peak performance in distributorless ignition systems, these plugs utilize a raised platinum pad or fine wire tip on the ground electrode to minimize wear. The pure alumina silicate ceramic insulator and 98% pure copper core facilitate rapid heat transfer to prevent overheating, while the trivalent metal plating provides essential anti-corrosion and anti-seizing protection for the life of the plug.

• Manufacturer Part Number: SILMAR9B9
• Quantity: Box of 4 spark plugs
• Iridium-tipped center electrode for maximum durability
• Raised platinum pad on the ground electrode for improved spark performance
• 98% pure copper core aids in heat removal and prevents fouling
• Trivalent metal plating eliminates the need for anti-seize during installation
• Triple seals prevent combustion gas leakage

Fits 2013-2015 Honda NCH50 Metropolitan (Base).

NGK Standard spark plugs are a reliable OE-style replacement engineered for consistent ignition performance. These nickel alloy plugs feature a solid 98% pure copper core for superior heat dissipation and electrical conductivity, ensuring a wide heat range for dependable operation. The high-grade alumina silicate ceramic insulator provides optimal dielectric strength and heat transfer, while corrugated ribs help prevent electrical flashover.

• Part Number: CR7HSA-9
• Quantity: Box of 4
• Trivalent Metal Plating: Delivers superior anti-corrosion and anti-seizing properties for easier installation and removal.
• Triple Gasket Sealing: Robust design prevents combustion gas leakage to maintain engine compression.
• Copper Core: Enhances heat removal and conductivity for stable performance.
• Ceramic Insulator: Pure alumina silicate construction for improved strength and heat transfer.

Fits select 2015-2019 KTM 690 Duke/Enduro R, 1090 Adventure R, and 1290 Super Adventure/Duke models.

NGK Laser Iridium spark plugs (LKAR9BI-10) are engineered to meet original equipment standards for ignition performance and service life. Designed specifically for high-performance KTM applications, these plugs utilize a laser-welded iridium-tipped center electrode and a platinum-chip ground electrode to ensure slow wear rates and a stable idle. The construction focuses on high-grade materials that withstand the thermal stresses of distributorless ignition systems.

• Manufacturer Part Number: LKAR9BI-10
• Iridium center electrode tip is six times harder than platinum for maximum durability
• Platinum pad on the ground electrode ensures even wear and extended service intervals
• Pure alumina silicate ceramic insulator provides high dielectric strength and optimized heat transfer
• 98% pure copper core facilitates rapid heat dissipation to prevent overheating and pre-ignition
• Trivalent metal plating offers excellent anti-corrosion and anti-seizing properties
• Triple seals prevent combustion gas leakage for consistent cylinder pressure

Fits select 1997-2020 Audi, BMW, Chevrolet, Chrysler, Dodge, Jeep, Kia, Lexus, and Mercedes-Benz vehicles (2.0T).

NGK Ruthenium HX High Ignitability spark plugs represent the pinnacle of modern combustion technology. Designed to meet the demands of advanced high-compression and forced induction engines, the patented Ruthenium alloy provides superior durability and oxidation resistance compared to traditional iridium or platinum alternatives. This set of four plugs delivers a more complete fuel burn, facilitating quicker throttle response, a smoother idle, and more reliable cold-weather starts.

• Manufacturer Part Number: FR6BHX-S
• 0.4mm Ruthenium alloy fine wire center electrode for maximum spark concentration
• 0.8mm platinum fine wire ground electrode with PSPE/DFE tip technology
• Pure alumina silicate ceramic insulator for high dielectric strength and heat transfer
• Trivalent metal plating ensures anti-corrosion and anti-seizing performance without the need for anti-seize
• Corrugated ribs to prevent electrical flashover
• Integrated copper core for efficient heat dissipation

Fits select 2006-2020 Honda and Yamaha motorcycles, including Honda CB500/CBR500 series, Rebel 500, CRF150F, and Yamaha FJR1300, WR450F, and YZ450F models.

NGK Iridium IX spark plugs are engineered for performance enthusiasts requiring superior ignition response. The fine-wire iridium center electrode provides a high melting point and extreme durability—six times harder than platinum—allowing for a consistently stable spark even in high-heat environments. A tapered cut ground electrode reduces quenching, which improves flame kernel expansion for faster starting, smoother idling, and more precise throttle response.

• 0.6mm fine-wire iridium center electrode for maximum ignitability
• Trivalent metal plating offers superior anti-corrosion and anti-seizing properties
• Tapered cut ground electrode improves spark delivery and reduces electrical quenching
• Exceptional anti-fouling characteristics for cleaner combustion
• Direct upgrade for factory nickel alloy spark plugs
• Manufacturer Part Number: CPR8EAIX-9
• Quantity: Box of 4 spark plugs

Fits select 2013-2020 Audi A3, A4, A5, A6, Q5, Q7, S3, TT, and allroad; Porsche Macan; and Volkswagen Beetle, Golf, GTI, Jetta, and Passat models.

NGK Ruthenium HX High Ignitability spark plugs represent the pinnacle of modern ignition technology. Designed to meet the demands of high-efficiency engines, these plugs utilize a patented Ruthenium alloy that provides superior oxidation resistance and durability compared to standard iridium or platinum alternatives. The LFER7BHX features specialized DFE (Double Fine Electrode) and PSPE (Projected Square Platinum Electrode) tip designs to ensure a more complete fuel burn, resulting in sharper throttle response, a stabilized idle, and more reliable cold starts.

• 0.4mm Ruthenium alloy fine-wire center electrode for maximum spark concentration
• 0.8mm platinum fine-wire ground electrode for extended service life
• Pure alumina silicate ceramic insulator provides high dielectric strength and thermal conductivity
• Trivalent metal plating offers excellent anti-corrosion and anti-seizing properties
• Copper core aids in efficient heat dissipation
• Corrugated ribs prevent flashover to ensure consistent ignition
• Manufacturer Part Number: LFER7BHX

Fits select 2016-2020 Honda Civic models, including EX, EX-L, EX-T, LX, Sport, Sport Touring, Touring, and Type R.

NGK Laser Iridium spark plugs are engineered for precise OE applications, providing an optimal balance of ignition performance and long-term durability. Each plug features an iridium-tipped center electrode that is six times harder than platinum, ensuring a stable spark and consistent combustion even in high-stress engines. These plugs are a direct-fit replacement for vehicles originally equipped with fine-wire iridium alloy technology.

The construction utilizes high-grade pure alumina silicate ceramic insulators for superior dielectric strength and heat transfer. A 98% pure copper core facilitates rapid heat removal to prevent overheating and pre-ignition, while triple seals prevent combustion gas leakage. The trivalent metal plating eliminates the need for anti-seize during installation by providing inherent anti-corrosion and anti-seizing properties.

• Manufacturer Part Number: ILZKAR8H8S
• Iridium-tipped center electrode for maximum electrode life
• Platinum pad on the ground electrode for uniform wear in DIS systems
• Pure alumina silicate ceramic insulator for better thermal conductivity
• Trivalent metal plating for superior corrosion resistance
• 98% pure copper core aids in heat dissipation
• Triple seals prevent pressure leakage

Fits select 2013-2020 Audi A3, A4, A5, A6, Q5, Q7, S3, TT, Porsche Macan, and Volkswagen Beetle, Golf, GTI, Jetta, and Passat.

NGK Laser Platinum spark plugs are engineered for OE applications, providing high ignitability and a significantly longer service life than conventional nickel plugs. Each plug features a laser-welded platinum pad on the ground electrode, ensuring even wear and consistent spark delivery in modern distributorless ignition systems. The high-grade pure alumina ceramic insulator and 98% pure copper core work together to maximize heat dissipation, preventing overheating and ensuring reliable starts under various conditions.

• Part Number: PLFER7A8EG
• Quantity: Box of 4
• Dual Platinum Surfaces: Laser-welded platinum center and ground electrodes for maximum durability and reduced electrode erosion.
• Anti-Corrosion Finish: Trivalent metal plating provides superior anti-seizing and anti-corrosion properties without the need for anti-seize.
• Performance Stability: Designed for stable idling, superior anti-fouling, and improved fuel efficiency to meet or exceed original equipment standards.
• Thermal Control: 98% pure copper core ensures optimal thermal conductivity and prevents spark plug overheating.

NGK Laser Iridium spark plugs are engineered for high-performance applications where spark stability and long-term durability are critical. The fine-wire iridium alloy center electrode features an extremely high melting point, making it ideal for modern high-compression engines that demand consistent ignition under intense heat. This hybrid design utilizes precious metals to provide superior wear resistance and a stable spark over an extended service life.

• Iridium Alloy Center Electrode: Precision-engineered fine wire tip for maximum spark density and durability.
• Alumina Silicate Ceramic Insulator: High-grade ceramic provides superior dielectric strength and thermal conductivity.
• Trivalent Metal Plating: Specialized finish offers excellent anti-corrosion and anti-seizing properties in the cylinder head.
• Copper Core: Deeply inserted copper core aids in rapid heat dissipation to prevent pre-ignition.
• Triple Gasket Seal: Prevents combustion gas leakage and maintains cylinder pressure.
• Part Number: SILFER8C7ES
• Quantity: Pack of 4 plugs

Fits select 2007-2020 Chrysler, Dodge, Freightliner, Hyundai, and Jeep models.

NGK Ruthenium HX High Ignitability spark plugs represent a significant advancement in ignition technology for modern high-efficiency engines. Featuring a patented 0.4mm Ruthenium alloy fine-wire center electrode and a 0.8mm platinum fine-wire ground electrode, these plugs are engineered to provide maximum durability and oxidation resistance. The Ruthenium HX series is designed to replace specialized OEM DFE (Double Fine Electrode) and PSPE (Projected Square Platinum Electrode) designs, ensuring your ignition system operates at its peak potential.

By facilitating a more complete fuel burn, these spark plugs help restore throttle response, stabilize idle, and ensure reliable cold starts. The construction includes a pure alumina silicate ceramic insulator for superior dielectric strength and a copper core for efficient heat dissipation. To protect against the elements and simplify future maintenance, each plug is finished with trivalent metal plating for advanced anti-corrosion and anti-seizing performance.

• Manufacturer Part Number: LKR7BHX
• Center Electrode: 0.4mm Ruthenium alloy fine wire
• Ground Electrode: 0.8mm Platinum fine wire
• Insulator: Alumina silicate ceramic with corrugated ribs to prevent flashover
• Plating: Trivalent metal for superior anti-corrosion
• Thermal Management: Integrated copper core for enhanced heat removal
• Quantity: Set of 4 spark plugs

Fits select 2009-2019 Audi A6, A7, A8, Q5, Q7, S4, S5, and SQ5, Porsche Cayenne and Panamera, and Volkswagen Touareg models.

NGK Laser Platinum spark plugs are engineered as high-performance OE replacements to provide superior ignitability and a longer service life than standard nickel plugs. Featuring laser-welded platinum surfaces on the center electrode and most ground electrodes, these plugs ensure minimal gap erosion and stable idling throughout their lifespan. The pure alumina silicate ceramic insulator provides exceptional dielectric strength, while the trivalent metal plating protects the shell from corrosion and seizing in the cylinder head, even in high-heat environments.

• OE Specific Design: Engineered to meet original equipment requirements for fit, heat range, and durability.
• Platinum-to-Platinum Surfaces: Laser-welded platinum pads provide even wear and consistent performance in distributorless ignition systems.
• Thermal Management: 98% pure copper core facilitates rapid heat removal to prevent pre-ignition and overheating.
• Anti-Fouling Performance: Fine-wire design improves fuel efficiency and reduces emissions while preventing carbon buildup.
• Flashover Prevention: Corrugated ribs on the insulator prevent electrical leakage (flashover) for reliable starts in all conditions.

Technical Specifications:
- Part Number: PFR8S8EG
- Electrode Material: Platinum Tip
- Core Material: Copper
- Insulator: Pure Alumina Silicate Ceramic
- Sealing: Triple Gasket Seal
- Quantity: Box of 4

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 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