Since this is a customized part, all orders are made to match your specific requirements, and cannot be sold again.
2003-2007 CHEVROLET Headlamp mounting panel OEM# 15798922 PL# GM1221131
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2003-2006 | CHEVROLET | AVALANCHE 1500 | all | w/o body cladding; headlamp housing support; right side |
| 2003-2006 | CHEVROLET | AVALANCHE 2500 | all | w/o body cladding; headlamp housing support; right side |
| 2003-2006 | CHEVROLET | SILVERADO 1500 | all | headlamp housing support; right side |
| 2007-2007 | CHEVROLET | SILVERADO 1500 CLASSIC | all | headlamp housing support; right side |
| 2003-2004 | CHEVROLET | SILVERADO 2500 | all | headlamp housing support; right side |
| 2003-2006 | CHEVROLET | SILVERADO 2500 HD | all | headlamp housing support; right side |
| 2007-2007 | CHEVROLET | SILVERADO 2500 HD CLASSIC | all | headlamp housing support; right side |
| 2003-2006 | CHEVROLET | SILVERADO 3500 | all | headlamp housing support; right side |
| 2007-2007 | CHEVROLET | SILVERADO 3500 CLASSIC | all | headlamp housing support; right side |
Product Details
The CHEVROLET AVALANCHE 1500 / AVALANCHE 2500 / SILVERADO 1500 / SILVERADO 1500 CLASSIC / SILVERADO 2500 / SILVERADO 2500 HD / SILVERADO 2500 HD CLASSIC / SILVERADO 3500 / SILVERADO 3500 CLASSIC Headlamp mounting panel, part number GM1221131, is specifically designed to fit vehicles from model 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
- Construction: Constructed from durable materials for reliable, long-term use
- Quality Standard: Manufactured to match OEM specifications for proper alignment, fitment, and finish
Verification Required: Confirm the listed OEM Part Numbers with your vehicle manufacturer before ordering or installing this replacement part.
Painted Services

Professional-Grade Auto Parts Painting
Every bumper, hood, fender, mirror, or radiator support is painted with high-quality materials for a long-lasting finish that matches body shop standards.
Three-Coat System with Clear Coat
Each part receives multiple coats of paint plus a clear coat for durability and a flawless finish.
Know Before You Order
All painted parts are not returnable and are FINAL SALE.
Inspect all parts before accepting delivery.
If you notice any damage, refuse the shipment—this is the only way we can file a claim. Accepted damaged shipments may incur shipping and restocking fees.
Aging paint & color matching consideration.
We match paint using OEM factory codes, but older vehicles present more challenges. Over time, sun exposure, oxidation, and previous repaints can significantly alter your car’s color.
Parts Classification Guide:
Understand Your Options
Original Equipment Manufacturer (OEM) Parts – Built by the same manufacturers that supply parts to automakers, ensuring factory fit and quality.
Certified Aftermarket – Tested and verified to meet OEM specifications, providing a reliable option for OEM replacement parts.
TYC Parts – Aftermarket Parts designed to match OEM fit, offering a great balance of price and quality from one of the top aftermarket manufacturers.
Value Aftermarket – Generic replacement parts designed for your vehicle, focused on price savings over original manufacturer branding.
Note: Not all parts are available in every option. If you don’t see your vehicle’s part listed under a specific category, it means we currently do not have it in stock.
























