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⚡ Ignite your drive with precision and power!
The Autolite XP3924 Iridium XP Spark Plug features a 0.6mm iridium-enhanced finewire center electrode and patented V-trimmed platinum sidewire for superior ignitability and durability. Designed as an OE equivalent for all vehicle types, it offers longer life with minimal gap erosion, smoother engine starts, and improved fuel efficiency. Made in the USA and backed by a limited lifetime warranty, it’s a top-tier ignition upgrade trusted by professionals and enthusiasts alike.





| ASIN | B000ET3XCY |
| Best Sellers Rank | #497,407 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #3,222 in Ignitions |
| Brand Name | Autolite Iridium Ultra |
| Compatible with Vehicle Type | Car |
| Core Material | Platinum |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (168) |
| Gap Size | 0.6 Millimeters |
| Global Trade Identification Number | 00009100044365 |
| Item Highlight | Replaces 613FP 12590701 3303 HR8NPP302 2071 1311. 40k-60k mileage rated. |
| Item Weight | 50 g |
| Manufacturer | FRAM |
| Manufacturer Part Number | XP3924 |
| Model | XP3924 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | XP3924 |
| Thread Size | 12 mm |
| Top Material Type | Alloy Steel |
| UPC | 009100044365 |
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