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Dorman 1591037 Headlight Assembly - Left
| Brand | Dorman 1591037 |
|---|---|
| Position | Left |
| Bulb Quantity | 2 |
| Bulb Technology | Halogen |
| Bulbs Included | Yes |
| Housing Material | Plastic |
| Lens Color | Clear |
| Lens Material | Plastic |
| Package Contents | 1 Headlight Assembly |
| Street Legal | Yes |
| Voltage | 12.8 |
| Fits | Chevrolet · 3 vehicles |
OE-style replacement. Reverse-engineered to match the original headlight assembly.
Clear lens. Helps deliver a clean, factory-like appearance.
Halogen design. Uses a proven bulb technology for dependable lighting.
Cross-references Eagle Eye GM325-B101L, 1221-0508L and 10365773 for the same application. See all 3.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
OE-Style Headlight Replacement
This Dorman headlight assembly is a direct replacement for the left side on select Chevrolet Colorado models. It is reverse-engineered to match the original headlight’s fit, appearance, and function while helping restore safe nighttime visibility.
Built for 2004-2006 Chevrolet Colorado applications with RPO Code V4A (Xtreme Package), this headlight assembly uses a clear lens, plastic housing, and halogen bulb technology for a factory-style lighting solution. Part number 1591037 is a practical choice when the original lamp is cracked, faded, or no longer performing as expected.
Key Features
- Fits 2004-2006 Chevrolet Colorado, left, w/RPO Code V4A (Xtreme Package)
- OE-style replacement headlight assembly for factory-like fit and appearance
- Clear lens with plastic lens and housing construction
- Halogen bulb technology with bulbs included
- Street legal for road use
- 12.8-volt electrical specification
- Part number 1591037 for easy identification
Detailed Description
Dorman 1591037 is a replacement headlight assembly engineered for specific Chevrolet Colorado trucks, including 2004, 2005, and 2006 models on the left side with RPO Code V4A (Xtreme Package). It is built to mirror the stock headlight’s shape and mounting points so the vehicle retains a clean, original-equipment look. The clear lens and halogen setup support dependable exterior lighting performance for daily driving.
This part cross-references Eagle Eye GM325-B101L for the same application. The Dorman 1591037 headlight assembly is a straightforward option when replacing a damaged or worn OE lamp on a Chevrolet Colorado.
Common Reasons for Replacement
- Cracked or clouded headlight lens
- Reduced nighttime road illumination
- Moisture intrusion or housing damage
- Failed or dim halogen lighting output
- Restoring the original look on a Chevrolet Colorado
Installation Notes and Tips
Verify left-side fitment and confirm the vehicle has RPO Code V4A (Xtreme Package) before ordering. Compare the original connector, mounting points, and lamp shape to the replacement assembly before installation. After installation, aim the headlight to help maintain proper forward lighting and road visibility.
Quality Assurance
Dorman manufactures this headlight assembly as an OE-style replacement for specific vehicle applications. Part number 1591037 is built to match the original headlight’s fit and function for the listed Chevrolet Colorado models.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Chevrolet | Colorado | Left | w/RPO Code V4A (Xtreme Package) |
| 2005 | Chevrolet | Colorado | Left | w/RPO Code V4A (Xtreme Package) |
| 2004 | Chevrolet | Colorado | Left | w/RPO Code V4A (Xtreme Package) |
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