Fits select 2009-2016 Husaberg and KTM motorcycles (including FE, EXC, SX-F, XC-W, and Duke models).

NGK Laser Iridium spark plugs are engineered for riders seeking the highest level of ignition performance and longevity. These plugs feature a laser-welded iridium-tipped center electrode combined with a platinum pad on the ground electrode. This dual-precious-metal design ensures extremely slow wear rates, providing a stable idle, superior anti-fouling, and consistent starts over a service life up to six times longer than standard platinum plugs.

Constructed with a 98% pure copper core for maximum heat dissipation, these plugs prevent overheating while maintaining reliable electrical flow. The high-grade alumina silicate ceramic insulator provides superior dielectric strength and thermal conductivity, while the trivalent metal plating protects against corrosion and seizing in the cylinder head.

• Part Number: LKAR8AI-9
• Center Electrode: Iridium-tipped for high durability and a concentrated spark
• Ground Electrode: Platinum pad for even wear in modern ignition systems
• Construction: Pure alumina silicate ceramic insulator for better heat transfer
• Sealing: Triple gasket seals to prevent combustion gas leakage
• Corrosion Resistance: Trivalent metal plating eliminates the need for anti-seize during installation
• Quantity: Box of 4 spark plugs

Fits 2004-2011 Mazda RX-8 (1.3L R2).

NGK Laser Iridium spark plugs are engineered to provide the highest levels of performance and longevity for the Mazda Renesis rotary engine. These RE9B-T trailing spark plugs feature an iridium-tipped center electrode, which is six times harder than platinum, ensuring consistent ignition across an extended service life. The fine-wire design improves ignitability while reducing the voltage required to bridge the gap.

• OE-Specific Design: Developed specifically for rotary engine trailing positions to ensure complete combustion and prevent fouling.
• Iridium & Platinum Construction: Features an iridium-tipped center electrode and a platinum pad on the ground electrode for even wear in high-heat environments.
• Superior Insulation: Pure alumina silicate ceramic insulator provides high dielectric strength and optimized heat transfer to prevent overheating.
• Copper Core Technology: A 98% pure copper core aids in heat removal to prevent pre-ignition and electrode melting.
• Advanced Plating: Trivalent metal plating provides superior anti-corrosion and anti-seizing properties, making future plug changes easier.
• Gas-Tight Seal: Triple gasket seals prevent combustion gas leakage and maintain compression.
• Manufacturer Part Number: RE9B-T
• Quantity: Box of 4

Fits 2004-2011 Mazda RX-8 models across all trims including Base, Grand Touring, R3, Shinka, and Sport.

NGK Laser Iridium RE7C-L spark plugs are engineered specifically for the unique combustion requirements of rotary engines. These leading-position plugs feature an iridium-tipped center electrode that provides durability six times harder than platinum, ensuring stable ignition and longevity under the high-heat conditions of the Renesis engine. The copper core aids in efficient heat removal, while the trivalent metal plating provides superior anti-corrosion and anti-seizing properties without the need for anti-seize during installation.

• Part Number: RE7C-L
• Configuration: Leading spark plug for rotary applications
• Electrode Material: Iridium-tipped center electrode with platinum ground electrode pad
• Insulator: Pure alumina silicate ceramic for high dielectric strength and better heat transfer
• Construction: 98% pure copper core for maximum conductivity and heat dissipation
• Sealing: Triple seals to prevent combustion gas leakage
• Finish: Trivalent metal plating for corrosion resistance

Fits select 1964-2018 Ferrari, Porsche, Maserati, Polaris, Cobra, Kawasaki, Aprilia, and Yamaha models.

NGK IX Iridium spark plugs (BPR8EIX) are engineered for high-performance applications and modified engines, providing a significant upgrade over standard nickel alloy plugs. The center electrode is constructed from an iridium alloy that is six times harder than platinum and features an extremely high melting point, making it ideal for the high-heat environments of modern and vintage performance engines.

These plugs feature a 0.6mm fine-wire center electrode for improved ignitability and a tapered-cut ground electrode designed to minimize quenching, resulting in more consistent starts, smoother idling, and crisper throttle response. The trivalent metal plating provides superior anti-corrosion and anti-seizing properties, ensuring easier removal after long-term use.

• Part Number: BPR8EIX (6637)
• Series: IX Iridium
• Center Electrode Material: Iridium
• Ground Electrode Design: Tapered Cut
• Shell Finish: Trivalent Metal Plating
• Quantity: Box of 4
• High anti-fouling and extreme ignitability

Designed for the performance enthusiast, NGK Iridium IX spark plugs deliver maximum ignitability and durability for high-demand applications. These plugs feature a fine-wire iridium center electrode that is six times harder than platinum, allowing for a concentrated spark that improves throttle response and anti-fouling characteristics. The tapered cut ground electrode reduces quenching to ensure reliable starting and smoother idling.

Fits select 1968-2018 Aprilia, Arctic Cat, ATK, BMW, Bombardier, Can-Am, Chrysler, Cub Cadet, Ducati, Ferrari, and Honda models.

• Precision Engineering: 0.6mm fine wire iridium tip for consistent spark and high fuel efficiency.
• Corrosion Resistance: Trivalent metal plating provides superior anti-seize and anti-corrosion properties in all conditions.
• Extreme Durability: Iridium alloy melting point is exceptionally high, making it ideal for modern high-heat engines.
• Anti-Fouling: Specially designed to prevent carbon buildup and electrical leakage.
• MPN: DRR8EIX
• Quantity: Set of 4 spark plugs.

Fits select 2008-2019 Yamaha WaveRunner personal watercraft and jet boat models.

NGK V-Power spark plugs are engineered to improve ignitability and combustion efficiency over standard nickel plugs, particularly in demanding marine environments. The specialized V-cut nickel alloy center electrode directs the spark to the edge of the electrode where it can grow more rapidly. This design reduces quenching, ensuring quicker starts and a smoother idle for your Yamaha 1.8L engine.

• V-cut center electrode and concave ground electrode for enhanced spark growth and reduced quenching
• High-grade alumina silicate ceramic insulator for superior dielectric strength and heat transfer
• Trivalent metal plating provides excellent anti-corrosion and anti-seizing properties in wet environments
• Corrugated ribs prevent flashover to ensure consistent ignition timing
• Pure copper core facilitates rapid heat dissipation to prevent pre-ignition
• Triple gasket seals prevent combustion gas leakage
• Manufacturer Part Number: LFR6A
• Quantity: Box of 4

Fits select 1958-2020 Alfa Romeo, Aston Martin, Audi, BMW, Dodge, and Fiat models, as well as Arctic Cat powersports applications.

The NGK Iridium IX (BPR6EIX) spark plug is engineered for enthusiasts seeking increased acceleration, fuel efficiency, and anti-fouling performance. The 0.6mm fine wire iridium center electrode is six times harder than platinum, allowing for a consistently high spark while maintaining extreme durability even under the high temperatures of high-performance engines.

A tapered cut ground electrode reduces quenching and improves starting, idling, and throttle response. These plugs also feature trivalent metal plating, providing superior anti-corrosion and anti-seizing properties to ensure the plugs remain easy to service throughout their lifespan.

• Manufacturer Part Number: BPR6EIX
• Series: Iridium IX
• Quantity: Box of 4
• Center Electrode: Fine wire iridium tip for consistent spark
• Ground Electrode: Tapered cut for improved ignitability
• Plating: Trivalent metal for anti-corrosion and anti-seize
• Application: Recommended for modified or high-performance upgrades

Fits select 1980-1993 Buick, Cadillac, and Chevrolet vehicles, including high-performance applications like the Buick Regal Grand National, GNX, and Chevrolet Camaro Z28.

NGK V-Power spark plugs (UR4) are engineered to provide improved ignitability and reduced quenching compared to standard nickel plugs. The specialized V-cut nickel alloy center electrode directs the spark to the edge of the electrode, where it can develop more quickly to increase throttle response and ensure smoother idling. These plugs are an ideal replacement for OE applications requiring a copper core plug with enhanced combustion efficiency.

• V-Cut Center Electrode: Enhances ignitability by focusing the spark kernel for more complete combustion.
• Trivalent Metal Plating: Provides superior anti-corrosion and anti-seizing properties without the need for anti-seize during installation.
• High-Grade Alumina Silicate Ceramic: Ensures high-strength dielectric performance and optimal heat transfer.
• Copper Core: Deeply inserted copper core aids in heat removal to prevent pre-ignition.
• Triple Seals: Prevents combustion gas leakage past the shell.
• Corrugated Ribs: Design prevents flashover to ensure consistent spark delivery.
• Part Number: UR4
• Quantity: Box of 4

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

NGK Iridium IX spark plugs are engineered for the performance enthusiast, delivering increased ignitability and throttle response compared to standard nickel plugs. The fine-wire iridium center electrode is significantly harder than platinum, providing exceptional durability and a high melting point suited for high-heat, high-performance engines. A tapered cut ground electrode reduces quenching and improves flame kernel expansion for smoother idling and more consistent starts.

• Iridium Fine-Wire Tip: Provides high durability and a consistent, concentrated spark.
• Trivalent Metal Plating: Superior anti-corrosion and anti-seizing properties; no anti-seize required for installation.
• Improved Design: Tapered cut ground electrode enhances acceleration and reduces electrical voltage requirement.
• Technical Reliability: Highly resistant to carbon fouling for long-lasting efficiency.
• Manufacturer Part Number: LFR6AIX-11 (Stock No. 6619)
• Quantity: Set of 4 Spark Plugs

Fits select 2006-2019 Kawasaki KFX450R, KLX450R, KX250, KX250F, KX450, KX450F, and Yamaha XTZ1200 Super Tenere / ES.

NGK Standard spark plugs are a proven OE replacement engineered to deliver reliable ignition and consistent performance for powersports applications. Each plug features a solid 98% pure copper core to provide superior heat dissipation and electrical conductivity, ensuring a stable spark across ultra-wide heat ranges. The high-grade alumina silicate ceramic insulator offers excellent dielectric strength and thermal transfer, while the trivalent metal plating protects the threads against corrosion and seizing in the cylinder head.

• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties for easy installation and removal.
• Solid copper core aids in rapid heat removal to prevent pre-ignition and electrode wear.
• Triple gasket sealing process eliminates combustion gas leakage to maintain engine compression.
• Corrugated ribs on the insulator prevent electrical flashover and misfires.
• Pure alumina silicate ceramic insulator provides superior strength and heat transfer.
• Manufacturer Part Number: CPR8EB-9.
• Quantity: Box of 4.

Fits the 2011 LEM RX 65 Motard Base.

NGK Racing spark plugs are engineered to withstand the intense thermal and mechanical stress found in competitive racing environments. These plugs feature a center electrode configuration designed to maximize ignitability while maintaining durability under extreme combustion pressures. Built with a pure alumina silicate ceramic insulator, the R5671A-11 offers superior dielectric strength and efficient heat transfer. A copper core helps pull heat away from the tip to prevent pre-ignition and ensure stable performance during grueling track conditions.

• Trivalent Metal Plating: Provides superior anti-corrosion and anti-seizing properties to prevent the plug from sticking in the cylinder head.
• Corrugated Ribs: Engineered to prevent flashover and ensure consistent spark delivery.
• Triple Seals: Prevents combustion gas leakage for maintained cylinder compression.
• Advanced Insulator Nose: Specifically designed to improve throttle response and prevent fouling in high-performance applications.
• Manufacturer Part Number: R5671A-11
• Quantity: Pack of 4 spark plugs

Fits select 1958-2019 vehicles from Chevrolet, Cadillac, American Motors, Bentley, Arctic Cat, and others.

NGK Standard spark plugs are engineered as high-reliability OE replacements, delivering consistent performance through proven materials and design. Each plug features a 98% pure copper core for superior heat dissipation and electrical conductivity, ensuring a wide heat range that prevents fouling and pre-ignition. The insulator is crafted from high-grade alumina silicate ceramic, providing the dielectric strength and physical durability needed to withstand extreme combustion chamber pressures.

To ensure long-term serviceability, these plugs are treated with trivalent metal plating, offering robust anti-corrosion and anti-seizing properties that make future removals easier. Triple gasket sealing prevents combustion gas leakage, maintaining engine compression and efficiency.

• Part Number: BPR4ES (Solid Terminal)
• Copper Core: 98% pure copper for optimal heat transfer
• Ceramic Insulator: High-grade alumina silicate for dielectric performance
• Anti-Corrosion: Trivalent metal plating prevents seizing
• Flashover Prevention: Corrugated ribs reduce the risk of electrical tracking
• Leakage Control: Triple gasket seals prevent gas blow-by
• Quantity: Box of 4 plugs

Fits 2002-2015 Honda AquaTrax F-12, F-12X, F-15, F-15X, R-12, R-12X, and VFR800 Interceptor. This box of 4 NGK Laser Iridium spark plugs (IMR9D-9H) is engineered for original equipment applications that require precise ignition and long service life.

These spark plugs feature a fine-wire iridium-tipped center electrode that is six times harder than platinum, providing exceptional durability and a consistent spark. To ensure even wear in distributorless ignition systems, many Laser Iridium plugs include a platinum pad on the ground electrode. The 98% pure copper core combined with a high-grade pure alumina silicate ceramic insulator enables superior heat transfer and prevents overheating during high-performance operation.

• Part Number: IMR9D-9H
• Center Electrode: Laser-welded iridium tip
• Ground Electrode: Platinum chip for even wear
• Insulator: Alumina silicate ceramic for dielectric strength and heat removal
• Finish: Trivalent metal plating for superior anti-corrosion and anti-seizing properties
• Seal: Triple seals to prevent combustion gas leakage
• Quantity: Pack of 4

Fits 2014-2015 Cadillac CTS and XTS Vsport (Vsport, Vsport Premium, and Vsport Platinum).

NGK Iridium IX spark plugs (LTR7IX-11) are engineered for the performance enthusiast, providing improved throttle response and superior anti-fouling. The 0.6mm fine-wire iridium center electrode ensures high ignitability and a consistent spark, making these an ideal upgrade for modified engines or as a high-performance replacement for OE nickel alloy plugs. The iridium alloy used is six times harder than platinum, offering exceptional durability and a high melting point suited for modern high-output engines.

• Fine-wire iridium center electrode provides maximum spark energy and consistent performance
• Tapered cut ground electrode reduces quenching and improves flame expansion during combustion
• Trivalent metal plating offers superior anti-corrosion and anti-seizing properties without the need for anti-seize
• Advanced ceramic insulator provides better heat transfer and electrical insulation
• Manufacturer Part Number: LTR7IX-11

This package includes a box of 4 spark plugs.

Fits select 2004-2020 Buick, Cadillac, Chevrolet, and Ford models.

NGK Iridium IX spark plugs (LTR6IX-11) are engineered for performance enthusiasts looking to improve ignition efficiency and throttle response. The heart of this plug is its fine-wire iridium center electrode, which is six times harder than platinum and features an extremely high melting point. This design allows for a consistently stable spark even in the high-heat environments of modern or modified engines, resulting in improved acceleration and reduced anti-fouling.

These plugs feature a tapered cut ground electrode that reduces quenching for faster starts and smoother idling. To ensure long-term reliability and easy removal, the shells are treated with Trivalent metal plating, providing superior anti-corrosion and anti-seizing properties without the need for additional anti-seize during installation.

• Series: Iridium IX
• Part Number: LTR6IX-11 / 6509
• Quantity: Box of 4
• Electrode Material: Fine wire iridium center electrode
• Ground Type: Tapered cut for improved ignitability
• Plating: Trivalent metal for corrosion resistance
• Compatibility: Replaces OE nickel alloy plugs in high-performance or modified applications