



⚡ Ignite your drive with GM-engineered precision!
The ACDelco GM Original Equipment 41-993 Iridium Spark Plug delivers superior engine idle stability and quick acceleration through its fine-wire iridium electrode. Engineered and rigorously tested by GM for Chevrolet, Buick, GMC, and Cadillac vehicles, it features a one-piece suppressor seal that blocks radio interference and extends electrode life. This vehicle-specific spark plug ensures reliable cold starts and cleaner combustion by burning away carbon deposits, making it a trusted OE part for optimal performance and longevity.







| Brand | ACDelco |
| Core Material | Iridium |
| Thread Size | RM |
| Top Material Type | Iridium |
| Vehicle Service Type | Car |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 808709617198 |
| Manufacturer | ACDelco |
| Model | GM Original Equipment |
| Item Weight | 1.44 ounces |
| Product Dimensions | 3.41 x 3.25 x 0.88 inches |
| Item model number | 41-993 |
| Exterior | Machined |
| Manufacturer Part Number | 12681665 |
Trustpilot
2 months ago
3 weeks ago