NGK Spark Plug - D8EA Part No.: 37-D8EA Key Features: Copper Core: The D8EA spark plug utilizes copper to dissipate heat more effectively, cooling the electrode and insulator tip. This helps prevent overheating and improves plug longevity. Raised Pre-Ignition Rating: With high-conduction copper and a long nose insulator, the plug enhances heat distribution, reducing the risk of pre-ignition in high-performance engines. Non-Resistor: This spark plug does not include a resistor, making it ideal for applications where electrical interference protection is unnecessary. Specifications: Heat Range: 8 - Suitable for engines that operate at slightly higher temperatures but still require good heat dissipation. Thread Size: 12mm - Fits a variety of engines with this common thread size. Gap: 0.028" (0.7mm) - Ensures proper spark for ignition. Hex Size: 11/16" (18mm) - Standard size for installation and removal. Reach: 19mm (3/4") - The distance from the tip to the sealing face, ensuring a proper fitment in the engine. Terminal Type: Stud Terminal Threads - Designed for use with threaded stud connections in specific engine applications. Seal Type: Gasket Seat - Ensures a secure seal during installation. Resistor: No - The spark plug does not feature a resistor. Applications: The NGK D8EA Spark Plug is compatible with a wide range of motorcycles, ATVs, and small engines. Some key applications include: Arctic Cat: 2017-2010 Arctic Cat 150 BMW: 2000-1997 BMW F650, 2005-2001 BMW F650GS, 2004-2001 BMW K75 models, 2000-1995 BMW R1100 series Honda: 1980-1976 Honda CB series (CB100K, CB125S, CB200T, CB350F, CB400F, CB650, CB750) Kawasaki: 1986-1984 Kawasaki ZR series (ZR1100A ZRX, ZL900A Eliminator, Z1000) Suzuki: 1986-1983 Suzuki ALT125, LT125, LT160, LT230 series, 1997-1994 Suzuki LT-4WD, 1991-1987 Suzuki LT-F250 series Yamaha: 1983-1982 Yamaha SR185, TT600, XT550, Timberwolf 2WD and 4x4 series Benefits: Improved Heat Dissipation: Copper core and long nose insulator enhance heat removal, preventing overheating and extending plug life. Enhanced Durability: Designed to last longer and perform reliably even in high-stress engine applications. Optimized Performance: Ideal for vintage motorcycles, ATVs, and other small engines requiring consistent, high-quality performance. Plug Construction: Copper Core: Aids in efficient heat removal, improving durability under high-stress conditions. Triple Seals: Prevents internal leakage and helps with heat dissipation. Corrugated Ribs: Prevent flashover and ensure stable ignition for reliable engine operation. Additional Information: Does Not Include Terminal Nut: If needed, order part #067606-0051 separately. Traditional Spark Plug: NGK's traditional design ensures the plug provides optimum performance for a wide range of engines. The NGK D8EA Spark Plug is a great choice for those seeking reliable, durable performance in high-temperature, high-stress conditions. It is perfect for vintage engines and motorcycles, offering superior heat management and extended plug life.
