







⚡ Ignite your ride with precision and power!
The Autolite 3924 Copper Resistor Spark Plug features a high-conductivity copper core combined with an iridium ultra alloy tip, engineered specifically for motorcycle engines. Compact and lightweight at 41 grams, it offers reliable ignition performance and durability with no assembly required, ensuring your bike starts strong every time.

| Brand | Autolite Iridium Ultra |
| Core Material | Copper |
| Top Material Type | Alloy Steel |
| Vehicle Service Type | Motorcycle |
| Global Trade Identification Number | 00009100039248 |
| UPC | 009100039248 |
| OEM Part Number | 3924 |
| Product Dimensions | 8.64 x 2.79 x 2.54 cm; 41 g |
| Item model number | 3924 |
| Manufacturer Part Number | 3924 |
| Position | Center |
| Assembly Required | No |
| Item Weight | 41 g |
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