







⚡ Ignite your drive with Autolite’s double platinum power!
Autolite APP3923 Double Platinum Spark Plugs feature a necked-down center electrode and platinum-to-platinum firing for faster, cleaner ignition and enhanced durability. With a high nickel alloy side electrode that resists gap erosion and a Yttrium-enhanced ground electrode for superior heat transfer, these plugs deliver reliable, long-lasting performance backed by Autolite’s trusted legacy since 1936.





| Brand | Autolite Iridium Ultra |
| Core Material | Platinum |
| Thread Size | 5/8 inches |
| Top Material Type | Nickel |
| Vehicle Service Type | Car, Truck |
| Global Trade Identification Number | 00009100002358 |
| Automotive Fit Type | Universal Fit |
| UPC | 009100002358 |
| Manufacturer | FRAM |
| Model | Double Platinum Spark Plug |
| Item Weight | 7 ounces |
| Product Dimensions | 3.38 x 4 x 1 inches |
| Item model number | APP3923-4PK |
| Exterior | Chrome |
| Manufacturer Part Number | APP3923-4PK |
| Position | Center |
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