The NGK CR9EHIX-9 is a top-tier iridium spark plug from the Iridium IX series, designed for high-performance 4-stroke engines in motorcycles such as Honda CBR600RR (2003–2006), Yamaha YZF-R6 (1999–2005), and Kawasaki ZX-9R (1998–2003). Featuring an ultra-fine 0.6 mm iridium electrode, it provides superior durability, reliable ignition, and improved engine response, making it ideal for performance enthusiasts. Iridium’s high melting point (2450 °C) ensures a lifespan up to twice that of standard nickel spark plugs. Equipped with a 5 kΩ resistor, it reduces electromagnetic interference, beneficial for motorcycles with advanced electronic systems. A trivalent metal plating prevents corrosion and seizing, while a high-quality aluminum silicate insulator ensures excellent heat transfer. Check compatibility with your motorcycle in the table below. For comprehensive maintenance, explore our spark plugs at Car Parts Herkules!
| Brand | Model | Engine Type | Engine Model | ccm | kW |
|---|---|---|---|---|---|
| Cars | |||||
| No known car applications for this spark plug. | |||||
| Motorcycles | |||||
| Honda | CBR600RR (2003–2006) | Inline-4 4-stroke | PC37 | 599 | 86 |
| Honda | CBR929RR (2000–2001) | Inline-4 4-stroke | SC44 | 929 | 109 |
| Kawasaki | ZX-9R (1998–2003) | Inline-4 4-stroke | ZX900C | 899 | 103 |
| Yamaha | YZF-R6 (1999–2005) | Inline-4 4-stroke | RJ03 | 599 | 88 |
| Yamaha | FZS1000 Fazer (2001–2005) | Inline-4 4-stroke | RJ02 | 998 | 105 |
Specifications: Spark plug, thread diameter: 10 mm, thread length: 19 mm, electrode gap: 0.9 mm, heat range: 9 (cold), resistance: 5 kΩ.
Manufacturer Part Numbers: NGK CR9EHIX-9 (6216), Denso IUH27, Champion RG6HCC.
OEM Numbers: Honda: 31909-MFJ-D01; Yamaha: 94701-00407; Kawasaki: 92070-0029.
Data sheet