NGK RACING PLUG R0409B-8 7791

NGK Iridium IX Spark Plug - R0409B8

Features:

• The ultimate in spark plug technology and performance from the industry leader.


• Iridium electrode is 25% smaller than a platinum electrode and 1/4 the size of a conventional nickel electrode.


• Ultra-small diameter center electrode reduces voltage requirements, extending the life of the ignition system.


• Enhanced metal shell plating for improved corrosion resistance.


• Fine wire iridium center electrode ensures a stronger spark and better ignition performance.


• Designed to withstand extreme racing environments.


• Sold individually.

Specifications:

• Part Number: 37-R0409B-8 (oro2u.com)


• NGK Reference Number: 7791


• Heat Range: 4


• Thread Size: 10 mm


• Thread Length: Half Thread Type - 12.7 mm (1/2") Threaded


• Total Reach: 19 mm (3/4")


• Hex Spanner Size: 16 mm (5/8")


• Seal Type: Gasket Seat


• Terminal Type: Stud Terminal Threads (Terminal Nut Not Included)


• Electrode Material: Ultra-Fine Iridium Center Electrode, Fine Wire Nickel Angled Ground Electrode


• Gap: 0.028" (0.7 mm)


• Units Sold: Each


• Weight: 0.06 lbs

Compatible Honda Models:

• CRF250R: 2005, 2006, 2007, 2008, 2009

Additional Information:

• Fine wire racing plugs provide a stronger spark from your existing ignition system.


• The recessed iridium center electrode reduces voltage requirements for ionization, resulting in a stronger spark for better air-fuel mixture ignition.


• Handcrafted in Japan for exceptional durability and performance under extreme conditions.

Notes:

• If a terminal nut is required, order part #067606-0051.

This spark plug delivers superior ignition performance, extended durability, and optimized engine power, making it ideal for high-performance racing applications and Honda CRF250R models.