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⚡ Ignite Efficiency, Drive Longer — Don’t Get Left Behind!
The Autolite Iridium XP XP3923 spark plug combines cutting-edge 0.6mm finewire iridium technology with platinum ground protection to deliver up to 100,000 miles of reliable, fuel-efficient performance. Designed for optimal ignition and backed by decades of trusted engineering, it’s the smart upgrade for professionals demanding durability and precision.





| ASIN | B000ET2794 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #193,212 in Automotive ( See Top 100 in Automotive ) #1,166 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.5 out of 5 stars 179 Reviews |
| Gap Size | 0.5 millimeters |
| Global Trade Identification Number | 00009100044341 |
| Included Components | Iridium Spark Plug |
| Item Highlight | Replaces 41-111 12571164 3297 7421 2095 127. Fine-wire iridium center, platinum-enhanced ground. |
| Item Type Name | Spark Plug |
| Item Weight | 1.76 ounces |
| Manufacturer | FRAM |
| Manufacturer Part Number | XP3923 |
| Manufacturer Warranty Description | Lifetime Limited Warranty |
| Model Number | XP3923 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | XP3923 |
| Part Interchange Info | XP3923 |
| Thread Size | 12 mm |
| Top Material Type | Nickel |
| UPC | 009100044341 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |
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