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NGK Standard Spark Plug — B9EG (Removable Nut)

Part # 3530
Item #B9EG
Fits 57 motorcycles
  • Buell
    • Astro 250 1 -
    • Astro 360 1 - exhaust side
    • El Bandito MK2 360 1 - exhaust side
    • Go Kart 200 1 -
    • Pursang 360 1 - exhaust side
    • Pursang 370 1 - exhaust side
    • Pursang MK4/MK5 250 1 - exhaust side
    • Pursang MK5 175 1 -
    • Pursang MK5 200 1 -
    • Pursang MK5/MK6 350 1 - exhaust side
    • Pursang MK6 125 1 -
    • Pursang MK6/MK7 250 1 - exhaust side
    • Sherpa MK3 175 1 -
    • Sherpa MK3 200 1 -
    • Sherpa S 125 1 -
    • Sherpa S 250 1 -
  • CCM
    • 490 CMX 490 1 -
  • Cagiva
    • Aletta Rossa / Dakar 125 1 -
    • Elefant 2 125 1 -
  • Fantic
    • Caballero 125 125 1 -
    • Cross 125 125 1 -
    • RSX 125 125 1 -
  • Gas Gas
    • EC 125 · 1997–2026
  • Gilera
    • Arizona 125 1 -
    • GP 50 · 2002–2026
    • Runner · 1997–2026
    • Runner DD · 1997–2026
    • Runner SP · 1997–2000
    • XRI 125 125 1 -
  • Honda
    • CM 125 RB 125 2 -
  • Husqvarna
    • WRE 125 · 1998–2001
  • KTM
    • 125 LC/LCPA 125 1 -1985
    • 125 MC 125 1 - 14x19mm
    • 250 MC 250 1 - 14x19mm
    • 250 MC GP 250 1 - 14x19mm
    • 390 GS 390 1 -1985
    • 420 420 1 -
    • 495 495 1 -
    • 50 GXE 50 1 -
  • Kawasaki
    • KX 60 B KX60B · 1991–1993
  • MBK
    • Trial 75 1 -
  • Mondial
    • Trial 75 1 -
  • PGO
    • NRG 50 MC2 · 1996+
    • Zip 50 SP 50 1 -
  • SYM
    • Cross, Enduro 300 300 1 -
    • Cross, Enduro 80 · 1994+
  • Triumph
    • Cross, Enduro 300 300 1 -
    • Cross, Enduro 80 · 1994+
  • Yamaha
    • IT 175 H 175 1 -
    • IT 175 J / K 175 1 -
    • IT 250 H 250 1 -
    • IT 250 J 250 1 -
    • IT 250 K 250 1 -
    • T 125 H / J 125 1 -
    • YZ 100 K 100 1 -
    • YZ 125 B 125 1 - Construction Code / C / G / G1 / H / X
    • YZ 80 80 1 - Construction Code J / K /L / N /T

Fitment data from NGK's published catalog.

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NGK Standard Spark Plug — B9EG (Removable Nut)
Product Details

Pure race plug: solid-copper-core nickel construction tuned for high-RPM, high-cylinder-pressure engines where the heat range matters more than service life.

  • Compact, solid-copper-core design with a nickel ground electrode optimized for the heat range, not the service interval.
  • Heat ranges run colder than street plugs (typically NGK 8–10) so the tip stays out of the pre-ignition zone in built engines and forced-induction race motors.
  • Available in standard 14mm and racing 10mm thread sizes, in projected and non-projected tip geometries to match the chamber.
  • Solid terminal or removable nut variants — pick the one that matches your plug-cap style; check the variant title.
  • Short service life by design — these are race weekend plugs, not 30,000-mile street plugs.

Spec: B9EG (Removable Nut)

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