






⚡ Ignite your ride with precision power — don’t get left behind!
NGK Iridium IX Spark Plugs deliver extreme ignition performance with a fine-wire iridium center electrode and nickel-alloy terrain electrodes, engineered for fuel-injected and turbo engines. Designed for durability, these plugs offer up to 50,000 miles of reliable service with a universal 14mm thread fit, making them the ultimate upgrade for motorcycle enthusiasts seeking enhanced engine torque and efficiency.
| Brand | Generic | 
| Core Material | Iridium | 
| Thread Size | 14mm | 
| Top Material Type | Nickel | 
| Vehicle Service Type | Motorcycle | 
| Automotive Fit Type | Universal Fit | 
| Manufacturer | NGK | 
| Model | Iridium IX Spark Plugs | 
| Item Weight | 0.01 ounces | 
| Product Dimensions | 3.7 x 0.94 x 4.98 inches | 
| Country of Origin | USA | 
| Item model number | 4469 | 
| Manufacturer Part Number | LFR5AIX-11 | 
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