Dorman 1590320 Headlight Assembly - Front Left

OE-Style Left Headlight Assembly

This Dorman headlight assembly is a direct replacement for the front left side on select Ford F-150 and Lincoln Mark LT applications. It is reverse-engineered to match the original headlight’s look, fit, and function, making it a practical choice for restoring nighttime visibility and exterior appearance.

Part number 1590320 is built for 12-volt halogen lighting and is street legal for approved road use on the listed vehicles.

Key Features

• Direct replacement headlight assembly for the front left position
• Fits 2004-2008 Ford F-150, front left, except colored or dark gray shadow surround
• Fits 2006-2008 Lincoln Mark LT, front left
• Halogen bulb technology with high beam and low beam function
• Bulbs included; lens colors include amber and clear
• Black housing with plastic housing and lens construction
• Street legal for the listed applications
• Part number 1590320 for easy identification

Detailed Description

Dorman 1590320 is a replacement headlight assembly engineered to match the stock unit on specific vehicles without requiring a dealership purchase. It is designed for the front left side of the 2004-2008 Ford F-150 and the 2006-2008 Lincoln Mark LT, with fitment noted for F-150 models except those with a colored or dark gray shadow surround. The assembly uses halogen bulb technology, supports both high beam and low beam operation, and includes the bulbs needed for the assembly. The black housing, clear lens sections, and amber lens sections help maintain an OE-style appearance while restoring proper forward lighting.

This part cross-references Ford OE number 4L3Z13008BB for the same application.

What It Helps Fix

• Dim, cloudy, or damaged left headlight assembly
• Broken lens or housing on the front left side
• Reduced nighttime road illumination
• Failed halogen headlight function
• Exterior appearance issues after collision or wear

Installation Notes and Tips

Install on the front left side only and verify vehicle trim before ordering, especially on 2004-2008 Ford F-150 models with shadow surround styling. Mounting hardware is not included. Confirm bulb connections, aim the headlight after installation, and check all lighting functions before returning the vehicle to service.

Quality Assurance

Dorman replacement lighting components are reverse-engineered to match original equipment fit and function on the listed applications. Part number 1590320 is built as an OE-style replacement for the specified Ford F-150 and Lincoln Mark LT fitments.