Dorman 1591149 Headlight Assembly - Left

OE-Style Left Headlight for Mountaineer

This Dorman headlight assembly is a direct replacement for the left side on select 2002-2005 Mercury Mountaineer models. It is reverse-engineered to match the original headlight’s look, fit, and function while offering a more economical alternative to dealership replacement.

Built with a clear lens, plastic housing, and halogen bulb technology, this headlight assembly is street legal and includes bulbs for a ready-to-install replacement on the correct vehicle application.

Key Features

• Direct replacement headlight assembly for the left side
• Fits 2002-2005 Mercury Mountaineer, left
• Clear lens for factory-style exterior appearance
• Halogen bulb technology with bulbs included
• 12.8-volt electrical specification
• Plastic housing and plastic lens construction
• Street legal for road use on the listed application
• Part number 1591149 for accurate ordering and lookup

Detailed Description

Dorman 1591149 is a replacement headlight assembly engineered for select Mercury Mountaineer vehicles, including 2002, 2003, 2004, and 2005 models on the left side. It is designed to match the stock headlight’s shape and mounting points so the vehicle retains a factory-style appearance and proper lighting performance. The clear lens and halogen setup support original-equipment-style exterior lighting on the Mercury Mountaineer.

This part cross-references Eagle Eye FR370-B001L and also interchanges with 1L2Z13008ED and 20649200 for the same application. If you are searching for a 2002-2005 Mercury Mountaineer left headlight assembly, Dorman 1591149 is a direct-fit option to compare against the original unit.

Common Problems This Part Can Address

• Cracked or cloudy headlight lens
• Dim or uneven forward lighting
• Moisture intrusion in the headlight housing
• Broken or worn factory headlight assembly
• Failed bulb or aging halogen lighting components

Installation Notes and Tips

Verify left-side fitment before ordering and compare the connector, mounting points, and housing shape to the original assembly. For best results, inspect the surrounding trim and electrical connector condition during replacement. This headlight assembly is intended for the listed Mercury Mountaineer applications only.

Quality Assurance

Dorman reverse-engineers this replacement headlight assembly to match the original equipment design for the specified vehicle application. Part number 1591149 is built to support factory-style fitment and lighting performance on compatible Mercury Mountaineer models.