HomeElectrical, Lighting and Body > Lighting - ExteriorDorman 1591031 Headlight Assembly - Left
Part #: 1591031

Dorman 1591031 Headlight Assembly - Left

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⚙️ 3 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, LaCrosse
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Reliable Headlight Assembly for Buick LaCrosse

The Dorman 1591031 headlight assembly is designed specifically for Buick LaCrosse models, providing a direct replacement that meets factory specifications. This street-legal headlight assembly includes halogen bulbs and features durable plastic construction for both the housing and lens.

  • Compatible with Buick LaCrosse vehicles
  • Includes three halogen bulbs for optimal lighting
  • Clear plastic lens and housing for durability
  • Operates at 12.8 volts, suitable for standard vehicle electrical systems
  • Street legal and ready for installation

Product Details and Specifications

The Dorman 1591031 headlight assembly is engineered to restore proper exterior lighting on Buick LaCrosse models. It comes with three halogen bulbs pre-installed, ensuring immediate functionality upon installation. The clear plastic lens and housing provide resistance to weather and road debris, maintaining light clarity and performance over time. Operating at 12.8 volts, this assembly integrates seamlessly with the vehicle’s electrical system. The inclusion of bulbs eliminates the need for separate purchases, simplifying the replacement process.

Common Applications and Problem Resolution

  • Replaces cracked or damaged headlight assemblies on Buick LaCrosse
  • Restores dim or non-functioning halogen bulbs
  • Fixes moisture or fogging issues caused by compromised lens seals
  • Addresses electrical compatibility with 12.8-volt systems
  • Ensures compliance with street-legal lighting requirements

Installation Notes and Tips

Installation of the Dorman 1591031 headlight assembly is straightforward with basic hand tools. It is recommended to disconnect the vehicle battery before beginning to avoid electrical shorts. Align the assembly carefully to ensure proper beam pattern and secure all mounting points firmly. Since bulbs are included, verify all connections before finalizing installation. Consult the Buick LaCrosse service manual for specific removal and installation procedures.

Quality Assurance and Warranty

Dorman manufactures this headlight assembly to meet or exceed OEM standards for fit, form, and function. The plastic lens and housing materials are selected for durability and resistance to environmental factors. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term performance on Buick LaCrosse vehicles.

BrandDorman
Part Number1591031
Bulb Quantity3
Bulb TechnologyHalogen
Bulbs IncludedYes
Housing MaterialPlastic
Lens ColorClear
Lens MaterialPlastic
Package Contents1 Headlight Assembly
Street LegalYes
Voltage12.8

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2007BuickLaCrosseLeft
2006BuickLaCrosseLeft
2005BuickLaCrosseLeft

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

103337371221-0154L20671200GM369-B001L

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.