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.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2007 | Kawasaki | KX250 | Base |
| 2005-2006 | Kawasaki | KX250F | Base |
| 1997-2005 | KTM | 250 EXC | Base |
| 2003-2005 | KTM | 250 EXC 4-Stroke | Base |
| 1998-2001 | KTM | 250 MXC | Base |
| 1997-2019 | KTM | 250 SX | Base |
| 2006 | KTM | 250 SXS | Base |
| 1998-2005 | KTM | 300 EXC | Base |
| 1997-2005 | KTM | 300 MXC | Base |
| 1997 | KTM | 360 MXC | Base |
| 1997 | KTM | 360 SX | Base |
| 1998-2002 | KTM | 380 EXC | Base |
| 1998-2001 | KTM | 380 MXC | Base |
| 1998-2002 | KTM | 380 SX | Base |
| 2003-2007 | KTM | 50 Mini Adventure | Base |
| 2003-2007 | KTM | 50 Sr Adventure | Base |
| 2007 | KTM | 50 SX | Base |
| 2008 | KTM | 50 SX Mini | Base |
| 2003-2007 | KTM | 50 SX Pro Jr LC | Base |
| 2003-2006 | KTM | 50 SX Pro Sr LC | Base |
| 2002-2007 | KTM | 65 SX | Base |
| 2008 | KTM | 65 XC | Base |