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🔥 Ignite your diesel’s power with GM Genuine Parts Glow Plugs – start smarter, drive stronger!
GM Genuine Parts 9G Glow Plug (12639701) is a premium, copper-core diesel engine glow plug designed for cold starts. Featuring a self-regulating coil to prevent overheating and available in multiple reach sizes (21-40 mm), it ensures precise fit and optimal ignition performance. Backed by GM’s OE standards and a 24-month unlimited mile warranty, it’s the trusted choice for professional-grade diesel engine reliability.







| ASIN | B00496LXJ8 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #11,826 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Ignition Glow Plugs |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Compatible with Vehicle Type | Truck |
| Core Material | Copper |
| Customer Reviews | 4.6 out of 5 stars 1,755 Reviews |
| Global Trade Identification Number | 00707773990704 |
| Included Components | Auto Part |
| Item Type Name | Automotive Part |
| Item Weight | 1.44 ounces |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12639701 |
| Manufacturer Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
| Model Number | 12639701 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | 12639701 |
| Thread Size | 10 millimeters |
| Top Material Type | Metal |
| UPC | 707773990704 |
| Unit Count | 1 Count |
| Vehicle Service Type | Truck |
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