







⚡ Ignite your drive with precision and power!
The Autolite APP3923-4PK Double Platinum Spark Plug pack features advanced full platinum tips and a necked-down center electrode for quicker, cleaner ignition. Designed with a high nickel alloy side electrode and a full copper core, these plugs optimize engine performance, enhance fuel economy, and ensure durable, reliable starts across all driving conditions.





| Brand | Autolite Iridium Ultra |
| Core Material | Platinum |
| Thread Size | 5/8 inches |
| Top Material Type | Nickel |
| Vehicle Service Type | Car |
| Global Trade Identification Number | 00009100002358 |
| UPC | 009100002358 |
| Manufacturer | FRAM |
| Model | APP3923-4PK |
| Product Dimensions | 8.59 x 10.16 x 2.54 cm; 199.58 g |
| Item model number | APP3923-4PK |
| Manufacturer Part Number | APP3923-4PK |
| Position | Center |
| Assembly Required | No |
| Manufacturer | FRAM |
| Country of Origin | USA |
| Item Weight | 200 g |
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