



⚡ Ignite your drive with GM’s precision spark!
The GM Original Equipment 41-108 Iridium Spark Plug features a fine-wire iridium electrode for superior ignition stability and quick acceleration. Designed with a one-piece suppressor seal, it blocks radio frequency interference and prevents combustion leakage, ensuring long electrode life. Engineered specifically for Chevrolet, Buick, GMC, and Cadillac vehicles, this OE part is rigorously tested and backed by General Motors for reliable, high-performance operation.







| Brand | ACDelco |
| Core Material | Iridium |
| Thread Size | 0.551 inches |
| Top Material Type | Nickel |
| Vehicle Service Type | Car |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 808709617174 |
| OEM Part Number | 12620540 |
| Manufacturer | ACDelco |
| Model | GM Original Equipment |
| Item Weight | 0.8 ounces |
| Product Dimensions | 6.7 x 3.9 x 1 inches |
| Item model number | 41-108 |
| Is Discontinued By Manufacturer | Yes |
| Exterior | Machined |
| Manufacturer Part Number | 12681658 |
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