






⚡ Ignite your engine’s full potential with race-ready spark plugs!
The Autolite AR3934-4PK High Performance Racing Spark Plug 4-pack features a colder heat range and yttrium-enhanced alloy that reduces side wire temperature by 8%, improving durability and minimizing pre-ignition. Designed with a cut-back ground electrode for superior ignitability and coated in corrosion-resistant nickel plating, these vehicle-specific plugs are trusted by professional racers to deliver reliable, high-performance ignition under intense conditions.

| Brand | Autolite Iridium Ultra |
| Core Material | Nickel |
| Top Material Type | Nickel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00009100017871 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 009100017871 |
| Manufacturer | FRAM |
| Model | AR3934-4PK |
| Item Weight | 0.96 ounces |
| Product Dimensions | 3.38 x 4 x 1 inches |
| Item model number | AR3934-4PK |
| Exterior | Chrome |
| Manufacturer Part Number | AR3934-4PK |
| Position | Center |
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