NGK NGKR0451B-8 Racing Spark Plug (9356)

NGK Iridium Racing Spark Plugs

NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode improves ignitability, increases durability and enhances anti fouling capabilities. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage.

NGK iridium spark plugs currently represent the highest-quality technological solution. They feature an iridium-alloy on the middle electrode welded on in a special process using laser. One of the worlds hardest metals, the precious metal iridium starts melting at a temperature of 2450°c and is therefore very resistant to spark erosion. By using it, the service life is doubled on average in comparison to standard nickel spark plugs.

The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX ideal for the performance enthusiast. Iridiums extremely high melting point is perfectly suited to todays high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.

• Fine iridium tip ensures high durability and a consistently stable spark
• Trivalent metal plating for superior anti-corrosion and anti-seizing properties
• Outstanding acceleration, high fuel efficiency and durability

NGK are the worlds number 1 motorcycle OEM fitted spark plug

From passenger cars and bikes to Formula 1 and motorcycle racing, NGK Spark Plugs has established itself as a heavily relied upon original equipment manufacturer (OEM). With its clear commitment to delivering the highest quality and continuously raising the bar, NGK Spark Plugs is the obvious brand of choice for a wide range of vehicle manufacturers.

Fitment Summary
Compatible with 34 models (yearly).

• HM Italia: CRF 250 HM Special, CRM 250R, CRM 250X
• Honda: CRF250 Enduro, CRF250 R, CRF250 RA, CRF250 RB, CRF250 RC, CRF250 RD, CRF250 RE, CRF250 RF, CRF250 RG, CRF250 RK, CRF250 RLA, CRF250 RWE, CRF250 RX, CRF250 RY