





⚡ Ignite your drive with GM’s trusted power boost!
The ACDelco GM Original Equipment D521C Ignition Coil is a GM-recommended replacement part designed specifically for select Chevrolet, Cadillac, and Buick models. Featuring high-quality coated windings, corrosion-resistant laminated steel plates, and an exact OEM fit, this ignition coil ensures reliable, durable performance that meets or exceeds factory standards. Its plug-and-play installation makes it the perfect upgrade for maintaining your vehicle’s optimal ignition system.











| Brand | ACDelco |
| Item dimensions L x W x H | 17.7 x 5 x 2.1 inches |
| Vehicle Service Type | Car |
| Item Weight | 2.45 Pounds |
| Connector Gender | male |
| Installation Type | Screw-In or Bolt-On |
| Manufacturer | ACDelco |
| UPC | 707773774731 |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | 25195107 |
| Model | GM Original Equipment |
| Item Weight | 2.45 pounds |
| Product Dimensions | 17.7 x 5 x 2.1 inches |
| Item model number | D521C |
| Is Discontinued By Manufacturer | Yes |
| Exterior | Coated |
| Manufacturer Part Number | 55579072 |
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