NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability.
- RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
- Trivalent metal plating for superior anti-corrosion and anti-seizing properties
- Outstanding acceleration, high fuel efficiency and durability
- Fine iridium tip ensures durable and consistent spark
Vehicle Fitment
| Years |
Make |
Model |
Trim |
| 2006–2007 |
Honda |
Cb600f Hornet |
600cc |
| 2008 |
Honda |
Cb600fa Hornet ABS |
600cc |
| 2014 |
Honda |
Cb650fa |
650cc |
| 2007 |
Honda |
Cbf600 |
600cc N/S Incl ABS |
| 2000 |
Honda |
Cbr1100 XX Super Blackbird |
V-Y 1100cc |
| 2011 |
Honda |
Cbr600f |
600cc |
| 1998 |
Honda |
Cbr600f |
M N P R S T V W 600cc |
| 2000 |
Honda |
Cbr600f |
X Y 600cc |
| 2014 |
Honda |
Cbr650fa |
650cc |
| 1995 |
Honda |
Cbr900rr Fireblade |
893cc N-S |
| 1999 |
Honda |
Cbr900rr Fireblade |
918cc T V W X |
| 1998 |
Honda |
Rvf750r Rc45 |
750cc |
| 1992 |
Honda |
Vfr750r Rc30 |
750cc |
| 2001 |
Honda |
Vfr800f FI |
781cc W X-Y |
| 2004 |
Honda |
Xr250 |
250cc |
| 2001 |
Honda |
Xr250rt/v |
250cc |
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Carb Acknowledgement Required: false |
| Ltl Freight Required: false |
| Prop 65: Unknown |
| Part Type: automotive |
| Epa: N/A |
| Regular Stock: true |
| Units Per Sku: 4 |