NGK Spark Plug P/N:BR9EIX

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$11.99
MPN: BR9EIX
Item Package Quantity: 1
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NGK Spark Plug P/N:BR9EIX
NGK Spark Plug P/N:BR9EIX
$11.99

Fire a hot, stable spark and ignite the air-fuel mixture in demanding two- and four-stroke powersports engines with the NGK Iridium IX Spark Plug BR9EIX. It's a direct-fit replacement for a broad list of applications — including the 2002-2005 Aprilia RS 50, 1999-2007 Honda CR125R, 1998-2006 Husqvarna CR125, 1976-1977 Harley-Davidson SS125 and 2012-2018 Cobra CX65 (engine listed as All) — plus many snowmobiles, motorcycles and ATVs. See the Buyer's Guide tab for the full 230-application list.

  • Single iridium tip: a fine-wire 0.6 mm iridium center electrode for high durability and a consistently stable spark.
  • Iridium alloy center electrode: iridium's density (6x that of platinum) and very high melting point suit modern high-efficiency engines.
  • Tapered cut ground electrode: a reduced-quenching design intended to improve ignitability, acceleration, fuel efficiency and durability.
  • Solid copper core: a 98% pure copper core for superior heat dissipation, conductivity and wide heat ranges.
  • Trivalent metal plating: anti-corrosion and anti-seizing properties for easier installation and removal.

This is a resistor-type plug (5000 ohm) with a J-Gap ground configuration, Manufacturer Heat Range 9, pre-gapped to .032 in / 0.8 mm, an M14-1.25 metric thread, 13/16 hex, flat seat with an included crush washer, and 0.750 in / 19 mm reach. Country of origin: Japan. Manufacturer part number BR9EIX.

Frequently Asked Questions

What is the NGK BR9EIX?

It's an NGK Iridium IX performance spark plug with a fine-wire 0.6 mm single-iridium center electrode and a tapered-cut ground electrode, recommended for modified or high-performance applications and as an upgrade to OE nickel-alloy plugs.

What gap does the BR9EIX come with?

It's pre-gapped to .032 in (0.8 mm). Always check the gap against your engine's specification before installing.

Is a sealing washer included?

Yes. It has a flat seat and ships with a crush-type washer included.

Is this a resistor spark plug?

Yes, it's a resistor-type plug rated at 5000 ohm, which helps suppress radio-frequency interference.

How many plugs do I need?

Quantity varies by application (the listed applications range from one to several), so confirm the count for your engine in the Buyer's Guide; the minimum order quantity is 4.