Best Laser Spark Plugs in 2026

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling

The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect

Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling

The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect

Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage

Laser welded Iridium center electrode tip ensures high durability and greater spark

Platinum disc welded to backside of ground electrode provides long life

Longer insulator nose prevents fouling, corrugated ribs on insulator prevents flashover, and the triple gasket seal eliminates combustion gas leakage

Extreme performance upgrade via OEM spark plugs and provide a lifetime at 40,000 50,000 miles.

Plugs have a fine-wire Iridium center electrode and nickel-alloy terrain electrodes for maximum engine and torque.

Designed for fuel-injected and turbo engines.

Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.

Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer

NGK is the world's largest supplier of OEM spark plugs

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling

The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect

Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior

The 0.6mm laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect

Longer insulator nose, the corrugated ribs on insulator, and a triple gasket seal eliminates combustion gas leakage

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response

The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect

Longer insulator , the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage

Often specified as original equipment, NGK Laser Iridium spark plugs are the best combination of performance and longevity.

Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer

NGK is the world's largest supplier of OEM spark plugs

Often specified as original equipment, NGK Laser Iridium spark plugs are the best combination of performance and longevity.

Research applications prior to purchase to make sure this part fits your vehicle including engine, trim level & quantity needed

Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior fouling

The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect

Longer insulator nose avoid fouling, the corrugated ribs on insulator avoid flashover, and a triple gasket seal eliminates combustion gas leakage

DENSO Unique Twin-Tip Structure

1.1mm platinum center electrode

360 Laser welding

EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today

FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption

OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance

Double Iridium firing pin and ground electrode inlay provide 4X longer service life compared to standard copper plugs

0.6mm fine wire firing pin provides superior ignitability and performance

360 Degree continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability

Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.

Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer

NGK is the world's largest supplier of OEM spark plugs

This 6 pack NGK Laser Iridium 6994 Spark Plug replaces Autolite XP5224, Honda 9807B-5617W, Honda 9807B5617WA0, DENSO Auto Parts 3377, DENSO Auto Parts 4504, DENSO Auto Parts 5615, DENSO Auto Parts

REDUCE EMISSIONS AND MISFIRES: This tried-and-true Spark Plug boosts performance, and enables better performance so that your engine runs at its best. The durable shell reliably protects the spark plug from damage, ensuring long-lasting sparking capabilities. The center and ground electrodes promote sharper spark focus for fewer misfires

IMPROVE IGNITION AND SPARK EFFICIENCY: This Spark Plug employs advanced center and ground electrodes to produce complete and efficient combustion and deliver an outstanding spark for faster, stronger, and more powerful combustion over the life of the spark plug. The damage-tolerant center and ground electrodes minimize spark gap growth and provide greater ignitability and spark efficiency

RE7C-L

RE9B-T

RE7CL RE9BT Mazda RX-8 RX8 Leading Trailing

Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.

Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer

NGK is the world's largest supplier of OEM spark plugs

Fit type: Vehicle Specific

Package Dimensions: 10.6 H x 2.1 L x 2.8 W (centimeters)

Package Weight: 0.042 kilograms

Single Quantity

No Core Charge Req.

Weight: 0.11lbs

Authentic Product

NGK Spark Plugs Brand

Sold in sets of Individual Pack

NGK 5787 Spark Plug - Pack of 4 (5787)

fit type: Vehicle Specific

You can depend on NGK for quality and reliability

Constructed from durable material

Includes laser welded platinum tip on center electrode and platinum tip on the ground electrode

Laser Platinum

1order = 6 Pieces

Single Quantity

No Core Charge Req.

Weight: 0.12lbs

Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.

Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer

NGK is the world's largest supplier of OEM spark plugs

【High quality materials】: TOP Material:Nickel,Core Material:Iridium.Hivehicle Purified alumina powder insulator from Germany ALMATIS(Model:HVA FG Q06) and Full-automatic isopressing;Iron shell(Model:20# 08 AL) and automatic welding/rolling bending;Central electrode Iridium alloy and 360 degree laser welding

【Reduce the risk】:Hivehicle OE12621258 spark plugs Updated design reduce the risk of breaking off during working

【Increases Fuel Efficiency】: G-Power Iridium Alloy Spark Plugs 12621258 offer superior performance with improved fuel efficiency, lower emissions, and quicker starts

Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.

Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer

NGK is the world's largest supplier of OEM spark plugs

【High quality from high quality material】:Purified alumina powder insulator from Germany ALMATIS(Model:HVA FG Q06) and Full-automatic isopressing;Iron shell(Model:20# 08 AL) and automatic welding/rolling bending;Central electrode Platinum alloy and 360 degree laser welding

【Reduce the risk】:Updated design reduce the risk of breaking off during working

【Increases Fuel Efficiency】: HiVehicle Platinum Alloy Spark Plugs offer superior performance with improved fuel efficiency, lower emissions, and quicker starts