



⚡ Ignite your engine’s potential with GM’s trusted spark plug!
The ACDelco GM Original Equipment R43XLS spark plug features a Black Onyx coating for corrosion resistance, a copper core for superior heat transfer, and a ribbed suppressor seal to prevent misfires. Engineered and tested by GM for Chevrolet, Buick, GMC, and Cadillac vehicles, it ensures reliable ignition performance and durability, including suitability for marine applications.
| Manufacturer | ACDelco |
| Brand | ACDelco |
| Model | GM Original Equipment |
| Item Weight | 6.4 ounces |
| Product Dimensions | 4.4 x 3.8 x 1.7 inches |
| Country of Origin | Mexico |
| Item model number | R43XLS |
| Is Discontinued By Manufacturer | Yes |
| Exterior | Machined |
| Manufacturer Part Number | R43XLS |
| OEM Part Number | 19310643 |
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