HomeElectrical, Lighting and Body > Lighting - ExteriorDorman 1591840 Headlight Assembly - Left
Part #: 1591840

Dorman 1591840 Headlight Assembly - Left

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⚙️ 26 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Silverado 3500 Classic, Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, and Silverado 3500
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Reliable Headlight Assembly for Chevrolet Trucks

The Dorman 1591840 headlight assembly is designed to restore proper lighting performance for select Chevrolet trucks. Engineered with halogen bulbs and clear plastic lens, this assembly ensures street-legal illumination for safe driving.

  • Compatible with Chevrolet Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD, Silverado 1500 HD Classic, Silverado 2500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, and Silverado 3500 Classic
  • Includes two halogen bulbs for immediate installation
  • 12.8 voltage rating suitable for standard vehicle electrical systems
  • Clear plastic lens and durable plastic housing for weather resistance
  • Street legal and compliant with lighting regulations

Durable Construction and Halogen Lighting Technology

This Dorman headlight assembly (part number 1591840) features a plastic housing and lens designed to withstand road conditions while maintaining clarity. The included halogen bulbs provide consistent light output with a voltage rating of 12.8 volts, matching the electrical system of Chevrolet Avalanche and Silverado models. The clear lens ensures optimal light projection and visibility during night driving or adverse weather.

Compatible Chevrolet Models and Applications

This headlight assembly is compatible with a range of Chevrolet trucks, including Avalanche 1500 and 2500 series, as well as Silverado 1500, 1500 Classic, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 2500 HD Classic, 3500, and 3500 Classic models. It is designed to replace factory headlight units that have failed or become damaged, restoring proper exterior lighting functionality.

  • Replaces cracked or broken headlight lenses
  • Restores dim or non-functioning halogen bulbs
  • Corrects moisture or fogging issues inside the headlight assembly
  • Ensures compliance with street-legal lighting standards
  • Improves nighttime visibility and road safety

Installation Notes and Tips

Installation of the Dorman 1591840 headlight assembly is straightforward and requires basic hand tools. Before installation, disconnect the vehicle battery to prevent electrical shorts. Remove the damaged headlight assembly by loosening mounting screws and disconnecting the wiring harness. Connect the new assembly’s wiring harness, secure the unit with mounting screws, and test the lights for proper operation. Refer to the vehicle’s service manual for detailed instructions specific to Chevrolet Avalanche and Silverado models.

Quality Assurance and Warranty Information

Dorman manufactures this headlight assembly to meet or exceed OEM standards for fit, form, and function. The product includes two halogen bulbs and is street legal, ensuring compliance with vehicle lighting regulations. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.

BrandDorman
Part Number1591840
Bulb Quantity2
Bulb TechnologyHalogen
Bulbs IncludedYes
Housing MaterialPlastic
Lens ColorClear
Lens MaterialPlastic
Package Contents1 Headlight Assembly
Street LegalYes
Voltage12.8

This part fits 26 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2007ChevroletSilverado 1500 ClassicLTLeft
2007ChevroletSilverado 1500 ClassicWTLeft
2007ChevroletSilverado 1500 ClassicSSLeft
2007ChevroletSilverado 1500 ClassicHybridLeft
2007ChevroletSilverado 1500 ClassicLSLeft
2007ChevroletSilverado 1500 HD ClassicLeft
2007ChevroletSilverado 2500 HD ClassicLTLeft
2007ChevroletSilverado 2500 HD ClassicWTLeft
2007ChevroletSilverado 2500 HD ClassicLSLeft
2007ChevroletSilverado 3500 ClassicLTLeft
2007ChevroletSilverado 3500 ClassicWTLeft
2007ChevroletSilverado 3500 ClassicLSLeft
2006ChevroletAvalanche 1500Leftw/Decor Package
2006ChevroletAvalanche 2500Leftw/Decor Package
2006ChevroletSilverado 1500Left
2006ChevroletSilverado 1500 HDLeft
2006ChevroletSilverado 2500Left
2006ChevroletSilverado 2500 HDLeft
2006ChevroletSilverado 3500Left
2005ChevroletAvalanche 1500Leftw/Decor Package
2005ChevroletAvalanche 2500Leftw/Decor Package
2005ChevroletSilverado 1500Left
2005ChevroletSilverado 1500 HDLeft
2005ChevroletSilverado 2500Left
2005ChevroletSilverado 2500 HDLeft
2005ChevroletSilverado 3500Left

* 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:

103969131221-0110L20-6386-90GM269-B101L

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