The ultimate spark plug technology and performance from NGK.
Iridium electrode is 25% smaller than platinum and 1/4 the size of a conventional nickel electrode.
Ultra-fine (0.6 mm) diameter center electrode reduces voltage requirement and extends ignition system life.
Enhanced anti-corrosion qualities with new metal shell plating.
Tapered cut ground electrode reduces quenching for improved flame growth and combustion efficiency.
Designed for high-performance applications, improving acceleration and fuel efficiency.
Solid terminal top for durability under high vibration conditions.
Specifications:
Heat Range: 9
Thread Size: 14 mm
Reach: 19 mm (3/4")
Hex Size: 13/16" (20.6 mm)
Seal Type: Gasket Seat
Electrode Material: Fine Wire (0.6 mm) Iridium Center Electrode
Ground Electrode: Tapered Cut
Gap: .031" (0.8 mm)
Terminal Type: Solid Terminal Nut (non-removable)
Type: Resistor
Units: Each
Weight: 0.12 lbs
Part Number: 37-BR9EIX 3089
Cross-Reference Numbers: B9ES, BR9ES, BR9EVX
Compatible Models:
Kawasaki:
2010 KX85
Yamaha:
2006–2012 YZ125
Product Summary:
Description: NGK Iridium IX Plug, 14mm Thread Size, 19mm (3/4") Reach, Gasket Seat, Resistor. Designed for high-performance engines requiring enhanced ignitability, durability, and efficiency.
Details: NGK Iridium plugs provide superior ignitability with an ultra-fine center electrode for reduced voltage requirements. Tapered cut ground electrode minimizes flame quenching, promoting better combustion and performance. Durable, triple-sealed design prevents interior leakage, ensuring longevity and reliability in demanding conditions.