






⚡ Ignite your drive with pro-level spark power!
Autolite AR3933X-4PK High Performance Racing Spark Plugs feature a Yttrium-Enhanced Alloy core that reduces side wire temperature by 8%, a cut background electrode for faster ignition, and a nickel-plated anti-corrosive finish. Designed for modified engines and trusted by professional racers, these plugs deliver superior durability and optimized performance tailored to a wide range of vehicles.

| Brand | Autolite Iridium Ultra |
| Core Material | Nickel |
| Top Material Type | Nickel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00009100031099 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 009100031099 |
| Manufacturer | FRAM |
| Model | AR3933X-4PK |
| Item Weight | 1.92 ounces |
| Product Dimensions | 5 x 1 x 1 inches |
| Item model number | AR3933X-4PK |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | AR3933X-4PK |
| Position | Center |
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