41-110 ACDelco Professional Iridium Spark Plug

- Iridium spark plugs provide stable idling and smooth engine performance
- Designed for efficient cold starts and fast acceleration
- Fine-wire electrode burns off carbon buildup for cleaner operation
- Suppressor seal blocks radio interference with vehicle electronics
- Helps control spark energy and prevent combustion leaks
- Some ACDelco parts were previously labeled as GM Genuine Parts or ACDelco Professional
- GM OE parts are specifically designed for Chevrolet, Buick, GMC, and Cadillac vehicles
- OE parts meet GM safety standards, unlike some aftermarket parts
- GM updates parts with new materials and technology regularly