

⚡ Ignite your drive with pro-level spark power!
The Autolite AR3923 high-performance racing spark plug features a yttrium-enhanced alloy that lowers operating temperature by 8%, a cut-back nickel-plated ground electrode for improved ignitability and reduced knocking, and advanced emission suppression technology. Designed for professional racers and serious enthusiasts, it delivers durable, reliable ignition under extreme conditions.





| Manufacturer | nobrandname |
| Brand | Autolite |
| Product Dimensions | 2.54 x 2.54 x 8.59 cm; 45.36 g |
| Item model number | AR3923 |
| Is Discontinued By Manufacturer | Yes |
| OEM Part Number | AR3923 |
| Position | Center |
| Item Dimensions L x W x H | 25 x 25 x 86 mm |
| Item Weight | 45.4 g |
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