

⚡ Ignite your drive with pro-level spark power!
The Autolite AR3923 High Performance Racing Resistor Spark Plug delivers professional-grade ignition with nickel anti-corrosion plating and yttrium-enhanced alloy for superior durability and heat management. Designed with a precision cut electrode for improved flame ignition, this universal fit spark plug is a trusted choice since 1936 for racers and enthusiasts seeking maximum engine efficiency and reliability.





| ASIN | B000CSNMWS |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #1,125,548 in Automotive ( See Top 100 in Automotive ) #5,577 in Automotive Replacement Spark Plugs |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car |
| Core Material | Nickel |
| Customer Reviews | 4.5 4.5 out of 5 stars (67) |
| Global Trade Identification Number | 00009100026583 |
| Included Components | Racing Resistor Spark Plug |
| Item Type Name | Racing Resistor Spark Plug |
| Item Weight | 1.6 ounces |
| Manufacturer | FRAM |
| Manufacturer Part Number | AR3923 |
| Manufacturer Warranty Description | Lifetime Limited Warranty |
| Model Number | AR3923 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | AR3923 |
| Thread Size | 14 mm |
| Top Material Type | Nickel |
| UPC | 009100026583 |
| Unit Count | 1 Count |
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