Certified Aftermarket – Tested and verified to meet OEM specifications, providing a reliable option for OEM replacement parts.
2003-2007 CHEVROLET Headlamp mounting panel CAPA OEM# 15798921 PL# GM1221130C
OEM Part Number: 15798921
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2003-2006 | CHEVROLET | AVALANCHE 1500 | all | w/o body cladding; headlamp housing support; left side |
| 2003-2006 | CHEVROLET | AVALANCHE 2500 | all | w/o body cladding; headlamp housing support; left side |
| 2003-2006 | CHEVROLET | SILVERADO 1500 | all | headlamp housing support; left side |
| 2007-2007 | CHEVROLET | SILVERADO 1500 CLASSIC | all | headlamp housing support; left side |
| 2003-2004 | CHEVROLET | SILVERADO 2500 | all | headlamp housing support; left side |
| 2003-2006 | CHEVROLET | SILVERADO 2500 HD | all | headlamp housing support; left side |
| 2007-2007 | CHEVROLET | SILVERADO 2500 HD CLASSIC | all | headlamp housing support; left side |
| 2003-2006 | CHEVROLET | SILVERADO 3500 | all | headlamp housing support; left side |
| 2007-2007 | CHEVROLET | SILVERADO 3500 CLASSIC | all | headlamp housing support; left side |
We recommend obtaining your paint code from your vehicle rather than calling the dealer since they might give you the wrong paint code.
Details
The GM1221130C Headlamp mounting panel is a replacement part designed for CHEVROLET AVALANCHE 1500 / AVALANCHE 2500 / SILVERADO 1500 / SILVERADO 1500 CLASSIC / SILVERADO 2500 / SILVERADO 2500 HD / SILVERADO 2500 HD CLASSIC / SILVERADO 3500 / SILVERADO 3500 CLASSIC vehicles from model years 2003, 2004, 2005, 2006, 2007.
- Compatible Years: 2003, 2004, 2005, 2006, 2007
- Vehicle Fitment:
- CHEVROLET AVALANCHE 1500 2003-2006
- CHEVROLET AVALANCHE 2500 2003-2006
- CHEVROLET SILVERADO 1500 2003-2006
- CHEVROLET SILVERADO 1500 CLASSIC 2007-2007
- CHEVROLET SILVERADO 2500 2003-2004
- CHEVROLET SILVERADO 2500 HD 2003-2006
- CHEVROLET SILVERADO 2500 HD CLASSIC 2007-2007
- CHEVROLET SILVERADO 3500 2003-2006
- CHEVROLET SILVERADO 3500 CLASSIC 2007-2007
- Replacement Type: Designed to replace the original component with proper dimensions and fitment
- Quality Standard: Manufactured to OEM-style specifications to support accurate alignment and installation
Please Note: Confirm the OEM Part Numbers with your vehicle manufacturer before purchasing to ensure the correct application.
Shipping and Returns
Shipping
Once your order is shipped, the estimated delivery times are as follows:
- Painted Parts: Delivered within 10–15 business days
- Non-Painted Parts: Delivered within 5–10 business days
Read our full shipping policy here.
Returns
Painted parts can be canceled within 24 hours for a full refund. Other parts can be canceled within 12 hours. After that, restocking fees may apply.
Returns are accepted within 30 days of delivery. Parts must be unused, in original packaging, and returned at the buyer’s expense unless we made an error.
All returns and cancellations must be approved by our team. Start a request through our website or contact us at 630-458-0082.
Report any shipping damage within 2 business days of delivery. Refunds are issued after inspection.
Read our returns and cancellation policy here.

























