



⚡ Ignite your diesel’s potential with precision heat!
The ACDelco 9G Professional Glow Plug is engineered for diesel trucks, featuring a copper core and GN-type regulating coil that withstands higher voltages. Its self-regulating design prevents overheating by adjusting electrical flow as temperatures rise. With a variety of reach lengths from 21 to 40 mm, it fits a wide range of engine chambers, ensuring reliable cold starts and enhanced engine performance.







| Brand | GM Genuine Parts |
| Core Material | Copper |
| Thread Size | 10 millimeters |
| Top Material Type | Metal |
| Vehicle Service Type | Truck |
| Global Trade Identification Number | 00707773990704 |
| UPC | 707773990704 |
| OEM Part Number | 12639701 |
| Manufacturer | ACDelco |
| Product Dimensions | 15.75 x 2.54 x 2.54 cm; 40.82 g |
| Item model number | 12639701 |
| Manufacturer Part Number | 12639701 |
| Volume | 7 Cubic Inches |
| Assembly Required | No |
| Manufacturer | ACDelco |
| Country of Origin | Hong Kong |
| Item Weight | 40.8 g |
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