NGK DR4HS 3326 Spark Plug Copper Core

Ngk Dr4hs 3326 Spark Plug. Ignite your engine´s performance with the NGK DR4HS 3326 spark plug. Engineered for superior reliability and durability, this OEM-quality replacement offers a robust copper core for efficient heat removal and a pure alumina silicate ceramic insulator for exceptional strength and heat transfer. Its trivalent metal plating ensures anti-corrosion and anti-seizing, while corrugated ribs prevent flashover and triple seals prevent leaks. Ideal for marine applications and small engines, trust NGK for consistent power, improved fuel efficiency, and a longer service life. NGK DR4HS 3326 Spark PlugExperience unparalleled reliability and ignition performance with the NGK DR4HS 3326 spark plug, the premier choice for a wide range of ignition systems. As the world´s leading spark plug manufacturer, NGK sets the industry standard for quality, durability, and performance, and the DR4HS is a perfect example of that legacy. NGK standard plugs are constructed for longer life and optimum performance, making them the ideal OEM-quality replacement to restore your engine´s power and efficiency.Engineered to withstand the most demanding conditions, the NGK 3326 spark plug is perfectly suited for numerous marine applications, including many classic Johnson and Evinrude outboard motors, as well as other small engines. It ensures your engine starts reliably and runs smoothly, providing the consistent spark needed for optimal combustion.At the heart of its exceptional performance is a solid copper core. This design is highly effective at heat removal, quickly transferring heat away from the firing tip to prevent overheating, pre-ignition, and fouling. This ensures the plug maintains a stable operating temperature for consistent power delivery and improved fuel efficiency. Paired with a pure alumina silicate ceramic insulator, which provides incredible mechanical strength and superior heat transfer, the DR4HS guarantees maximum dielectric performance. The insulator´s corrugated ribs are a signature NGK design element that prevents spark flashover, ensuring the ignition energy is directed to the electrode tip where it belongs, not wasted.The NGK DR4HS is built for longevity. Its trivalent metal plating provides superior anti-corrosion and anti-seizing properties, which is especially critical in harsh marine or humid environments. This advanced coating not only protects the plug itself but also makes installation and future removal significantly easier, preventing seized threads in your engine´s cylinder head. Furthermore, the triple gasket seal is a crucial feature that effectively prevents combustion gas leakage. This ensures your engine maintains proper compression and operates at peak efficiency, preventing power loss and protecting vital internal components.Whether you are performing routine maintenance on your trusted outboard motor or tuning up another small engine, the NGK DR4HS 3326 spark plug delivers the quality, reliability, and performance you expect from a global leader. Trust NGK for a stronger, more consistent spark, improved throttle response, and a longer service life for your engine.Features:- Trivalent metal plating provides superior anti-corrosion and anti-seizing properties- Corrugated ribs prevent flashover- Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer- Copper core aids in heat removal- Triple seals prevent leakageSpecifications:Shell:- Thread Diameter: 12mm- Thread Pitch: 1.25mm- Seat Type: Gasket- Hex Size: 18mm- Terminal Type: Threaded Stud- Overall Height: ISO- Gap: .028 (0.7mm)Center Electrode:- Material: Nickel- Type: Standard- Size: 2.5mmGround Electrode:- Material: Nickel- Type: StandardTechnical Details:- Resistor Value: 5k Ohm- Heat Range: 4- Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft. tradeinn Motardinn

The NGK DR4HS is part of the NGK Standard range.A conventional NGK nickel-alloy spark plug with a copper-cored centre electrode. The copper core carries heat away from the firing tip quickly, which lets the plug run cooler under load while still burning off deposits at low speed, so it resists both overheating and fouling better than a plain nickel plug. NGK's standard range is the direct replacement where a conventional plug is specified and remains the sensible choice for classic engines, motorcycles, garden machinery and everyday servicing. Easy to inspect and re-gap, with a triple-seal construction against gas leakage and a corrugated insulator to prevent flashover.