Description
A properly tuned ignition system starts with the right spark plug. The AUTOLITE 4123 delivers a sharper, more consistent spark through its precision-engineered electrode design, ensuring optimal combustion efficiency and reliable performance across a wide range of engine conditions. Whether you’re fine-tuning a street machine or maintaining peak performance on the track, this U.S.-manufactured plug provides the dependable ignition characteristics serious builders and mechanics expect.
- Tapered nickel/chrome alloy tip
- Copper center electrode
- Sharper spark delivery
- Leaner combustion characteristics
- Made in the U.S.A.
- OEM-quality construction
