







⚡ 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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